CN205326600U - Appearance is drawn to cam profile line - Google Patents
Appearance is drawn to cam profile line Download PDFInfo
- Publication number
- CN205326600U CN205326600U CN201521142156.XU CN201521142156U CN205326600U CN 205326600 U CN205326600 U CN 205326600U CN 201521142156 U CN201521142156 U CN 201521142156U CN 205326600 U CN205326600 U CN 205326600U
- Authority
- CN
- China
- Prior art keywords
- fixing
- cam profile
- tooth bar
- support frame
- paper
- 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
Links
Landscapes
- Transmission Devices (AREA)
Abstract
The utility model discloses an appearance is drawn to cam profile line belongs to teaching aid technical field, it includes: a fixing device for fixing the base circle scraps of paper (11), a fixing device and gear (4) fixed connection, a 2nd fixing device for fixing the line of motion picture scraps of paper (12), second device and rack (5) fixed connection, rack (5) with gear (4) intermeshing, and get ware (10) ready, get ware (10) ready connects on support frame (8) with sliding, rack (5) can be relative remove support frame (8), just rack (5) are relative the moving direction of support frame (8) with it is relative to get ware (10) ready the slip direction of support frame (8) is perpendicular. When drawing the cam profile line, simple structure, demonstration effect are lively.
Description
Technical field
This utility model relates to school and uses teaching aid field, is specifically related to a kind of cam profile drawing instrument。
Background technology
Design and the drafting of cam profile is the important knowledge point of " theory of mechanics " course cam mechanism one chapter, and student is when learning the drafting of cam profile, it is generally difficult to understand: why just can draw cam profile according to motion line chart？What corresponding relation is had on earth between motion line chart and cam profile？Why cam mechanism can realize certain intended characteristics of motion？And when lecturing the drafting of cam mechanism contour line, teacher also can find that this knowledge point is more abstract, student is difficult to set up spatial impression, model action demonstration cam mechanism teaching aid not relevant in the market。
Utility model content
Therefore, this utility model provides the relevant teaching aid of a kind of cam mechanism contour line drawing process, it is simple to the contour line of ocular demonstration cam in teaching。
The open a kind of cam profile drawing instrument of this utility model, comprising: the first fixing device for fixing the basic circle scraps of paper, the described first fixing device is fixing with gear to be connected；The second fixing device for fixing the line of motion figure scraps of paper, the described second fixing device is fixing with tooth bar to be connected；Described tooth bar and described gear intermesh；And tapper, described tapper is slidably connected on bracing frame, and described tooth bar can move relative to support frame as described above, and described tooth bar is vertical relative to the glide direction of support frame as described above with described tapper relative to the moving direction of support frame as described above。
In above-mentioned cam profile drawing instrument, the described first fixing device includes basic circle supporting plate, and described basic circle supporting plate side is fixing with described gear to be connected, and opposite side is fixing with the described basic circle scraps of paper to be connected。
In above-mentioned cam profile drawing instrument, described basic circle supporting plate and described gear and the described basic circle scraps of paper are connected by the threaded fastener that is arranged on three is fixing。
In above-mentioned cam profile drawing instrument, the described second fixing device includes location-plate, and described location-plate and described tooth bar are fixed by securing member, and the described line of motion figure scraps of paper are fixed between described location-plate and described tooth bar。
In above-mentioned cam profile drawing instrument, described location-plate is U-shaped, its location-plate main body including being located remotely from described gear side and be positioned at the auxiliary positioning plate of described location-plate main body both sides and setting parallel to each other, motion line chart region between described location-plate main body and described auxiliary positioning plate。
In above-mentioned cam profile drawing instrument, also including base, support frame as described above is fixed on described base, and described tooth bar is slidably connected on described base。
In above-mentioned cam profile drawing instrument, being provided with guide rail structure between described tooth bar and described base, described tooth bar is slidably connected on described base along described guide rail structure。
In above-mentioned cam profile drawing instrument, support frame as described above is U-shaped, and in two sidewalls parallel to each other, one of them sidewall is fixing with base to be connected, and another sidewall is offered the slip notch of tapper described in grafting。
In above-mentioned cam profile drawing instrument, described tapper relative to the sliding distance of support frame as described above more than or equal to the maximum displacement value in described motion line chart。
Technique scheme of the present utility model has the advantage that
Cam profile drawing instrument disclosed in this utility model, by drive gear teeth bar mechanism, makes the described basic circle scraps of paper rotate, and the line of motion figure scraps of paper move, and tapper draws motion line chart according to cam contour, or draws cam profile according to motion line chart；Finally being plotted in panel according to the track of round dot by cam profile, this curve is the cam profile drawn out according to motion line chart。It utilizes the transmission of wheel and rack to provide motion for the basic circle scraps of paper and motion line chart dedicated paper, it is achieved that the corresponding relation of motion line chart and cam profile；By drawing the basic circle of different radii in advance at cam profile dedicated paper, such that it is able to draw out the cam profile of different base radius；Said structure is not only directly perceived, and demonstrating effect is lively, and structure is relatively simple simultaneously, less costly, can promote production。
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model detailed description of the invention or technical scheme of the prior art, the accompanying drawing used required in detailed description of the invention or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings。
Fig. 1 is the forward axonometric chart of cam contour drawing instrument of the present utility model；
Fig. 2 is the reversed isometric view of cam contour drawing instrument of the present utility model。
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described, it is clear that described embodiment is a part of embodiment of this utility model, rather than whole embodiments。Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection。
In description of the present utility model, it should be noted that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " be based on orientation shown in the drawings or position relationship; be for only for ease of description this utility model and simplifying and describe; rather than instruction or imply indication device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model。Additionally, term " first ", " second ", " the 3rd " are only for descriptive purposes, and it is not intended that indicate or hint relative importance。
In description of the present utility model, it is necessary to explanation, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or connect integratedly；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be the connection of two element internals。For the ordinary skill in the art, it is possible to concrete condition understands above-mentioned term concrete meaning in this utility model。
Being illustrated in figure 1 a kind of detailed description of the invention of the cam profile drawing instrument of the present invention, comprising: the first fixing device for fixing the basic circle scraps of paper 11, the described first fixing device is fixing with gear 4 to be connected；The second fixing device for fixing the line of motion figure scraps of paper 12, the described second fixing device is fixing with tooth bar 5 to be connected；Described tooth bar 5 intermeshes with described gear 4；And tapper 10, described tapper 10 is slidably connected on bracing frame 8, and described tooth bar 5 can move relative to support frame as described above 8, and the moving direction of the relative support frame as described above 8 of described tooth bar 5 is vertical with the glide direction of the described relative support frame as described above of tapper 10 8。
Specifically, above-mentioned cam profile drawing instrument includes base 6, and support frame as described above 8 is fixed on described base 6, and described tooth bar 5 is slidably connected on described base 6。Realizing being slidably connected by guide rail structure between described tooth bar 5 and described base 6, more specifically, as shown in Figure 1 and Figure 2, described base 6 offers dovetail slideway groove, described tooth bar 5 is provided with the swallow-tail form slide block being mated。
In order to make tapper 10 can intactly draw the contour line of cam structure cam or the movement locus figure of push rod, the sliding distance of the described relative support frame as described above 8 of tapper 10 is more than or equal to the maximum displacement value in described motion line chart。
The structure of the above-mentioned first fixing device is not unique, and as preferably, as it is shown in figure 1, the described first fixing device includes basic circle supporting plate 3, described basic circle supporting plate 3 side is fixing with described gear 4 to be connected, and opposite side is fixing with the described basic circle scraps of paper 11 to be connected。
Specifically, described basic circle supporting plate 3 and described gear 4 and the described basic circle scraps of paper 11 are connected by the threaded fastener that is arranged on three is fixing。Certainly, in other embodiments, it is also possible to realizing basic circle supporting plate 3 respectively through two groups of fastening structures and be connected with gear 4, the basic circle scraps of paper 11 are connected with basic circle supporting plate 3。
Same, the structure of the above-mentioned second fixing device is not unique yet, and as preferably, the described second fixing device includes location-plate 7, described location-plate 7 is fixed by nut 9 with described tooth bar 5, and the described line of motion figure scraps of paper 12 are fixed between described location-plate 7 and described tooth bar 5。
More specifically, described location-plate 7 is U-shaped, it includes being located remotely from the location-plate main body 71 of described gear 4 side and being positioned at the auxiliary positioning plate 72 of described location-plate main body 71 both sides and setting parallel to each other, described line of motion Figure 12 region between described location-plate main body 71 and described auxiliary positioning plate 72。When the location-plate 7 of U-shaped structure can be avoided drawing, with the interference of described motion line chart, location-plate causes that the motion line chart of some position cannot punch。
In other embodiments, it is also possible to the motion drawing scraps of paper 12 and tooth bar 5 are respectively arranged at location-plate 7 both sides and realize the fixing connection of three。
Different structure can be selected for the first fixing device and the second fixing device, but, it needs to ensure that the basic circle scraps of paper 11 and the motion connecting line figure scraps of paper 12 are generally aligned in the same plane, it is to avoid excessive error occur。
As shown in Figures 1 and 2, support frame as described above 8 is U-shaped, and in two sidewalls parallel to each other, one of them is fixed with base 6 and is connected, and another sidewall is offered the slip notch of tapper 10 described in grafting。
The work process of above-mentioned cam drawing instrument is as follows:
Manually operation makes tooth bar 5 respect thereto 6 steadily move linearly, and driven gear 4 rotates, due to gear 4 and the basic circle scraps of paper 11 synchronous axial system；Motion line chart dedicated paper 12 and tooth bar 5 synchronizing moving；Now, tapper 10 is pressed on the line of motion of motion line chart dedicated paper 12, just can leave corresponding dot on the basic circle scraps of paper 11, with certain step pitch mobile rack 5, press tapper 10, the basic circle scraps of paper 11 then leave corresponding dot, repeatable operation, until completing the whole curve of motion line chart, a series of dot can be left on the basic circle scraps of paper 11, take off the basic circle scraps of paper 11, be fixed in panel, just can draw out cam profile according to a series of dot。
Obviously, above-described embodiment is only for clearly demonstrating example, and is not the restriction to embodiment。For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description。Here without also cannot all of embodiment be given exhaustive。And the apparent change thus extended out or variation still in this utility model create protection domain among。
Claims (9)
1. a cam profile drawing instrument, it is characterised in that including:
The first fixing device for fixing the basic circle scraps of paper (11), the described first fixing device is fixing with gear (4) to be connected；
The second fixing device for fixing the line of motion figure scraps of paper (12), the described second fixing device is fixing with tooth bar (5) to be connected；Described tooth bar (5) and described gear (4) intermesh；
And tapper (10), described tapper (10) is slidably connected on bracing frame (8), described tooth bar (5) can move relative to support frame as described above (8), and the moving direction of described tooth bar (5) support frame as described above (8) relatively is vertical with the glide direction of described tapper (10) relative support frame as described above (8)。
2. cam profile drawing instrument according to claim 1, it is characterized in that, described first fixing device includes basic circle supporting plate (3), described basic circle supporting plate (3) side is fixing with described gear (4) to be connected, and opposite side is fixing with the described basic circle scraps of paper (11) to be connected。
3. cam profile drawing instrument according to claim 2, it is characterised in that described basic circle supporting plate (3) and described gear (4) and the described basic circle scraps of paper (11) are connected by the threaded fastener that is arranged on three is fixing。
4. cam profile drawing instrument according to claim 1, it is characterized in that, described second fixing device includes location-plate (7), described location-plate (7) and described tooth bar (5) are fixed by securing member, and the described line of motion figure scraps of paper (12) is fixed between described location-plate (7) and described tooth bar (5)。
5. cam profile drawing instrument according to claim 4, it is characterized in that, described location-plate (7) is U-shaped, its location-plate main body (71) including being located remotely from described gear (4) side and be positioned at the auxiliary positioning plate (72) of described location-plate main body (71) both sides and setting parallel to each other, motion line chart is positioned at the region between described location-plate main body (71) and described auxiliary positioning plate (72)。
6. cam profile drawing instrument according to claim 1, it is characterized in that, also including base (6), support frame as described above (8) is fixed on described base (6), and described tooth bar (5) is slidably connected on described base (6)。
7. cam profile drawing instrument according to claim 6, it is characterized in that, being provided with guide rail structure between described tooth bar (5) and described base (6), described tooth bar (5) is slidably connected on described base (6) along described guide rail structure。
8. cam profile drawing instrument according to claim 6, it is characterized in that, support frame as described above (8) is U-shaped, in two sidewalls parallel to each other, one of them sidewall is fixing with base (6) to be connected, and another sidewall is offered the slip notch of tapper described in grafting (10)。
9. cam profile drawing instrument according to claim 1, it is characterised in that the sliding distance of described tapper (10) support frame as described above (8) relatively is more than or equal to the maximum displacement value in motion line chart。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521142156.XU CN205326600U (en) | 2015-12-28 | 2015-12-28 | Appearance is drawn to cam profile line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521142156.XU CN205326600U (en) | 2015-12-28 | 2015-12-28 | Appearance is drawn to cam profile line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205326600U true CN205326600U (en) | 2016-06-22 |
Family
ID=56209915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521142156.XU Expired - Fee Related CN205326600U (en) | 2015-12-28 | 2015-12-28 | Appearance is drawn to cam profile line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205326600U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109532288A (en) * | 2019-01-07 | 2019-03-29 | 台州学院 | A kind of cam drawing instrument |
-
2015
- 2015-12-28 CN CN201521142156.XU patent/CN205326600U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109532288A (en) * | 2019-01-07 | 2019-03-29 | 台州学院 | A kind of cam drawing instrument |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203631009U (en) | Contour line generation demonstration device for disc cam of pointed translating follower | |
| CN205326600U (en) | Appearance is drawn to cam profile line | |
| CN202428924U (en) | Multipurpose blackboard | |
| CN202233820U (en) | Lifting lecture table | |
| CN102689552A (en) | Drawing tool for sine function | |
| CN104318823A (en) | Arcsine and arccosine function demonstrating and image drawing instrument | |
| CN209729067U (en) | A kind of industrial and commercial teaching display board | |
| CN203706581U (en) | Teaching instrument for hole disc type variable-speed control mechanism of milling machine | |
| CN212847381U (en) | Cam mechanism teaching demonstration device | |
| CN106940962B (en) | Multifunctional mechanical principle teaching aid | |
| CN216435346U (en) | Student's ideological and political education feedback interactive installation | |
| CN203046614U (en) | Multifunctional blackboard | |
| CN205080799U (en) | Mathematics sinusoidal function device of imparting knowledge to students | |
| CN105261288A (en) | A transmission four-bar mechanism teaching aid | |
| CN204712730U (en) | Cam curve draws teaching aid | |
| CN204020332U (en) | A kind of double rack ellipsograph that can be used for manual drawing ellipse | |
| CN204102451U (en) | Draw the device of cam profile | |
| CN210200123U (en) | Novel comprehensive experiment device for innovative design of planar mechanism | |
| CN202574006U (en) | Inside rearview mirror provided with movable mirror surface and touch display screen | |
| CN204390596U (en) | Based on the NC Machine Tool Teaching instrument that classroom is shown | |
| CN204360656U (en) | Economical management teaching plotting sheet | |
| CN106515279B (en) | A kind of autochart device for mathematical education | |
| CN204955851U (en) | Setting -out device of imparting knowledge to students for mathematics | |
| CN202233818U (en) | Lifting platform | |
| CN204808649U (en) | Marketing specialty is with teaching show board |
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: 20160622 Termination date: 20171228 |