CN204055075U - Cam profile and the top curve movement instrument for generating of cam - Google Patents
Cam profile and the top curve movement instrument for generating of cam Download PDFInfo
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- CN204055075U CN204055075U CN201420179997.7U CN201420179997U CN204055075U CN 204055075 U CN204055075 U CN 204055075U CN 201420179997 U CN201420179997 U CN 201420179997U CN 204055075 U CN204055075 U CN 204055075U
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- 230000001360 synchronised effect Effects 0.000 abstract description 5
- 238000013507 mapping Methods 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 abstract 1
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- 229910052802 copper Inorganic materials 0.000 description 2
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- 230000004323 axial length Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
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Abstract
一种能绘制凸轮廓线以及凸轮顶尖运动规律曲线的测绘演示的凸轮廓线与凸轮顶尖运动曲线生成仪，绘制凸轮顶尖运动曲线时手柄通过齿轮齿条传动使绘图笔的横向运动和纵向运动同时进行，其中纵向运动通过使凸轮旋转推动顶尖上下移动再通过横轴传给绘图笔；绘制凸轮廓线时，直接移动绘图笔，笔的横向移动通过齿条齿轮转换为凸轮模具的转动，而笔的纵向位移直接经横轴同步给顶尖笔，进而简单直观地得到廓线，同步轴两端用紧定螺钉固定两个齿轮分别与与主板固定的两根平行齿条啮合，使轴向各位置均能同步移动，以此保证精确度，采用锥形的卡子通过正压螺纹连接固定凸轮，不松动，还可固定不同孔径凸轮，可作为简单测绘和原理展示的教学用具。
A cam contour line and cam top motion curve generator capable of drawing cam contours and cam top motion law curves for surveying and mapping demonstration. When drawing cam top motion curves, the handle is driven by a rack and pinion to make the drawing pen move horizontally and vertically at the same time. Carry out, in which the longitudinal movement is driven by the cam rotation to move the top up and down and then transmitted to the drawing pen through the horizontal axis; when drawing the cam line, the drawing pen is directly moved, and the lateral movement of the pen is converted into the rotation of the cam mold through the rack and gear, while the pen The longitudinal displacement is directly synchronized to the top pen through the horizontal axis, and then the profile can be obtained simply and intuitively. The two ends of the synchronous shaft are fixed with set screws and the two gears are respectively meshed with the two parallel racks fixed with the main board, so that each position in the axial direction All can move synchronously to ensure accuracy. The tapered clip is used to connect the fixed cam through the positive pressure thread without loosening. It can also fix the cam with different apertures. It can be used as a teaching tool for simple surveying and principle display.
Description
Technical field
The utility model patent relate to a kind of can draw cam profile and by cam obtain its top characteristics of motion curve teaching survey and draw demonstration instrument.
Background technology
At present, measuring method that cam obtains its profile and top curve movement thereof, to mainly contain two kinds: one be manual mapping, and manual mapping precision is lower and comparatively bother, two can use area of computer aided to scan draws, cost is higher, and can not embody cam design principle, should not be used for teaching demonstration; Design cam also has corresponding two kinds of methods: one is hand-designed, and two is use CAD software to design, but manual accuracy is low, trouble, directly generates also directly perceived not, be unsuitable for teaching with CAD software.Rote teaching cam partial content is comparatively abstract, and teaching aid is deficient, is unfavorable for that study is understood.
Summary of the invention
Intuitively do not wait not enough to overcome existing mapping method trouble, the utility model provides a kind of cam profile and the top curve movement instrument for generating of cam, this cam profile and cam top curve movement instrument for generating only need one-handed performance, visual in image, the top curve movement of cam in kind can not only be generated, cam profile can also be drawn out according to existing curve movement.
The utility model solves the technical scheme that its technical problem adopts: after on mainboard, square shaft bolster is fixed in plate face, and bearing bracket stand axle two, axle one use jump ring location by bearing, and handle loaded onto by axle two rear end projecting shaft bolster holding screw.(1) when generating curve movement by cam: 1, turning handle, axle two part in bearing bracket stand will be rotated with the gear two that holding screw connects simultaneously, gear two leading portion engages with gear one, the axle axle one of driven gear one rotates, axle one leading portion stretches out mainboard front face, before mainboard, cam chuck afterbody withstands axle one bearing inner race, by holding screw connecting axle one, axle one is external screw thread foremost, use taper clamp with threaded hole can make itself and axle one synchronous axial system by stationary cam, during owing to normally working, axle one is rotated counterclockwise, therefore employing forward screw thread is fixed and can not be loosened, simultaneously, turning handle, after mainboard, gear two back segment engages with main tooth bar and makes to be fixed on main tooth bar on line slideway one along guide rail transverse movement, main tooth bar left side screwed hole and oscillating bearing Stud connection, promote Y left movement (direction perpendicular to axle), little guide rail on U-shaped brace two is synchronously moved to left, and then drive the drawing pen holder be connected with little guide rail slide block to move to left (drawing pen and drawing pen holder are together by a threaded connection), be transverse movement when drawing curve movement.Because longitudinal axis radial direction is by moment of flexure, affect precision for ensureing that axle is not crooked when side-to-side movement, axle two ends holding screw fix two gears four respectively be fixed on mainboard after two parallel transverse tooth bars two of demifacet engage.The longitudinal axis and two bearing block two inner bearing interference fit, two bearing blocks two are separately fixed on the slide block of two horizontal line slideways.Two pin of U-shaped brace pass through bearing interference fit (position of the longitudinal axis gear four and bearing block two) through the longitudinal axis after mainboard and mainboard before mainboard, use the axis of copper sheathing locating shaft.2, in mainboard front face transverse axis and two, left and right bearing block one inner bearing interference fit, two bearing blocks one are separately fixed on the slide block of two longitudinal line slideways.Transverse axis can longitudinally move up and down, transverse axis is equipped with dead head (dead head is connected by bearing with axle) in the position that cam center (Ji Zhou mono-center) is corresponding, there is rebound spring axle at dead head top, ensures that dead head can not rotate with transverse axis and ensure that the top cam that can not depart from (to be toply threaded connection with dead head, identical external screw thread is had with drawing pen, interchangeable).Top when moving up and down, dead head and transverse axis also synchronously move up and down, on axle on the right side of transverse axis, linear slider also synchronously moves up and down, on axle, linear slider and drawing pen holder are fixed by screw, drawing pen holder is moved up and down (penholder is on longitudinal little guide rail), constitutes transverse movement when drawing curve movement.Because transverse axis is by moment of flexure and axle is longer, also adopt the method for the longitudinal axis, fix two gears three at two ends and engage to ensure axially synchronous upper and lower everywhere with longitudinal rack.(2) when having curve movement to generate cam profile, only need by axle one the cam fixed change drawing board into, toply change drawing pen into, the drawing pen one moved on drawing pen holder along curve movement track can generate required profile.
The beneficial effects of the utility model are: comparatively accurately, be suitable for the cam that great majority are with centre bore, the top curve movement of the cam that can generate to simple, intuitive, meanwhile, and more can simple, intuitive ground generation cam profile.
Accompanying drawing explanation
Fig. 1 is upper and lower two isogonism axonometric drawings.
Fig. 2 is backsight graphics.
Fig. 3 is the top part explosive view of cam.
Fig. 4 faces Local map.
Fig. 5 is front view A-A sectional view.
Fig. 6 is top view.
Fig. 7 is top view B-B sectional view.
1. mainboards in figure, 2. axle one, 3. taper clamp, 4. cam (drawing board), 5. transverse axis, 6. bearing, 7. gear three, 8. bearing block one, 9. longitudinal straight-line guide rail slide block, 10. longitudinal line slideway, 11. longitudinal racks, 12. dead heads, 13. spring shafts, 14. drawing pen holders, 15. drawing pens, 16. little guide rail slide blocks, 18.U shape brace two, 19.U shape brace one, on 20. axles, linear slider 24. is top, 26. cam chucks, 27. bearing bracket stands, 28. axles two, 29. gears two, 30. gears one, 31. bearings, 32. handles, 33. main tooth bars, 34. line slideways one, 36. oscillating bearings, 37. longitudinal axis, 38. bearing blocks two, 39. gears four, 40. horizontal tooth bars, 41. horizontal line slideways, 53. copper sheathings.
Detailed description of the invention
In Fig. 1 Fig. 5, two longitudinal racks (11) are parallel with two longitudinal line slideways to be fixed on mainboard, diaxon bearing one (8) is connected on two guide rail slide blocks with screw respectively, transverse axis (5) is by retraining with the bearing interference fit in bearing block (8) and then to transverse axis (5) radial direction, due to axial length and by moment of flexure, therefore use hollow shaft and axle two ends to use holding screw to be fixed by two gears three (7), intermeshed by two gears three (7) and tooth bar (11) and make each position lengthwise movement on transverse axis synchronous.The dead head (12) of transverse axis above axle one (2) position is connected with transverse axis by bearing fit, dead head top uses one to be with the axle (13) of spring as resilient mounting (also can ensure that dead head can not rotate with transverse axis), when transverse axis (5) moves up and down, on the axle of right side drawing section, linear slider (20) can move up and down with axle, linear slider also can slide axially on axle, the front surface of linear slider overlaps with the bottom surface of drawing pen holder (14), use screw connects, drawing pen holder front surface and little guide rail slide block also adopt screw to be connected, little guide rail is fixed on U-shaped brace two (18), therefore, drawing pen holder laterally longitudinally can move non-interference simultaneously.Only need top (24) are taken off and loads onto another drawing pen (15) when drawing cam profile, retouch curve movement from left to right with right side drawing pen (15), profile drawn by the drawing board (4) that left side drawing pen just can be fixed on axle one.
In Fig. 2 Fig. 7, fixing of the longitudinal axis (37) is consistent with transverse axis with bending resistance mode, and bearing block two (38) is fixed on horizontal line slideway, and two ends fixed gear four (39) engages in case vertical axis tilt with fixing tooth bar onboard.The longitudinal axis is coaxial with the hole of oscillating bearing (36), allows the drawing pen holder before mainboard and the longitudinal axis after plate have identical transverse movement by U-shaped brace (18) (19).After bearing bracket stand (27) is fixed by screws in mainboard, axle one (2), axle two (28) are fixed by bearing and axle jump ring, axle two tail end can connecting handle (32), the inner axle two (28) of bearing bracket stand is fixed by holding screw with gear two (29), axle one (2) is fixed with gear one (30), turning handle (32), the main tooth bar (33) engaged with gear two is to the transmission transverse movement that moves to left, gear one (30) is with moving axis one turn that cam is rotated counterclockwise and then is top moving up and down, i.e. lengthwise movement simultaneously.Cam is fixed by cam chuck (26) and taper clamp (3), cam chuck afterbody withstands bearing inner race, the axially-movable of constraint axle one, axle one leading portion has plus thread, screwed hole on clamp is tightened with it, during owing to normally using, axle one is rotated counterclockwise, and can not loosen, and taper clamp can reach the effect of fixing different pore size cam after positive pitch thread locking.
In Fig. 5, drawing pen (15) external screw thread and drawing pen holder (14) screw-internal thread fit (coaxial), top in Fig. 3 (24) and dead head are threaded connection, and have identical external screw thread with drawing pen, interchangeable.On drawing pen holder and axle, linear slider (20) is screwed.Oscillating bearing (36) external screw thread after mainboard coordinates with the M8 internal thread hole of main tooth bar (33) side opening, oscillating bearing (36) and the longitudinal axis (37) coaxially movement.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420179997.7U CN204055075U (en) | 2014-04-14 | 2014-04-14 | Cam profile and the top curve movement instrument for generating of cam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420179997.7U CN204055075U (en) | 2014-04-14 | 2014-04-14 | Cam profile and the top curve movement instrument for generating of cam |
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| Publication Number | Publication Date |
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| CN204055075U true CN204055075U (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420179997.7U Expired - Fee Related CN204055075U (en) | 2014-04-14 | 2014-04-14 | Cam profile and the top curve movement instrument for generating of cam |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105291656A (en) * | 2015-11-04 | 2016-02-03 | 福建省泉州市培元中学 | Curve surveying instrument, drawing method and measuring method |
| CN106956538A (en) * | 2017-04-27 | 2017-07-18 | 钦州学院 | Difunctional formula cam locus plotter |
| CN108312747A (en) * | 2017-12-13 | 2018-07-24 | 中国石油天然气集团公司 | A kind of tee pipe fitting radian profiling drawing apparatus |
| CN109532288A (en) * | 2019-01-07 | 2019-03-29 | 台州学院 | A kind of cam drawing instrument |
| CN113799522A (en) * | 2021-09-17 | 2021-12-17 | 浙江理工大学 | Manual accurate drawing gauge for cam profiling curve |
-
2014
- 2014-04-14 CN CN201420179997.7U patent/CN204055075U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105291656A (en) * | 2015-11-04 | 2016-02-03 | 福建省泉州市培元中学 | Curve surveying instrument, drawing method and measuring method |
| CN106956538A (en) * | 2017-04-27 | 2017-07-18 | 钦州学院 | Difunctional formula cam locus plotter |
| CN106956538B (en) * | 2017-04-27 | 2018-09-04 | 钦州学院 | Difunctional formula cam locus plotter |
| CN108312747A (en) * | 2017-12-13 | 2018-07-24 | 中国石油天然气集团公司 | A kind of tee pipe fitting radian profiling drawing apparatus |
| CN109532288A (en) * | 2019-01-07 | 2019-03-29 | 台州学院 | A kind of cam drawing instrument |
| CN113799522A (en) * | 2021-09-17 | 2021-12-17 | 浙江理工大学 | Manual accurate drawing gauge for cam profiling curve |
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| 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: 20141231 Termination date: 20150414 |
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| EXPY | Termination of patent right or utility model |