CN204894897U - Cam profile curve plotter - Google Patents
Cam profile curve plotter Download PDFInfo
- Publication number
- CN204894897U CN204894897U CN201420836359.8U CN201420836359U CN204894897U CN 204894897 U CN204894897 U CN 204894897U CN 201420836359 U CN201420836359 U CN 201420836359U CN 204894897 U CN204894897 U CN 204894897U
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- China
- Prior art keywords
- gear
- push rod
- iii
- power transmission
- transmission shaft
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Abstract
The utility model discloses a cam profile curve plotter, it includes middle chassis (3) that placed vertical preceding support body (1) of placing and back support body (2) and level, be equipped with partially to adjusting the motion in middle chassis (3) the inside casing, include two initiative lead screw (4) that are parallel to each other and driven feed rod (5) apart from the adjustment motion partially, be equipped with between initiative lead screw (4) and driven feed rod (5) push rod (6), the bottom of push rod (6) both sides is screwed connection with initiative lead screw (4) and driven feed rod (5) respectively, one end at initiative lead screw (4) is equipped with hand wheel I (7), preceding support body (1) sets up to frame construction, be equipped with push rod rotary motion mechanism in preceding support body (1), push rod rotary motion mechanism includes push rod rotation driving device, push rod rotation driving device sets up in the frame of support body (1) in the front, push rod rotation driving device is connected for rotating with push rod (6), be equipped with push rod straight -line motion mechanism on back support body (2).
Description
Technical field
The utility model relates to a kind of cam profile curve plotter.
Background technology
In the course such as " theory of mechanics ", " Machine Design ", when lecturing the design of cam profile curve, student is compared with the relation between indigestibility cam profile and pushrod movement rule, and directly cannot draw the relation curve between pushrod movement rule and cam contour, teaching efficiency is poor.Present stage, cam drawing teaching instrument was a blind area, and current existing a cam instrument is made up of camshaft, cam, traction wheel, rocking bar, follower lever, sleeve, back-moving spring, drawing pen; Follower lever upper end is placed in sleeve, and follower lever bottom cover has drawing pen adjusting device, and lower end is that inverted cone shape cone point is equipped with movable ball, and ball is in direct contact with on cam, and follower lever is positioned in frame by backstay.Drawing mechanism is made up of drawing board, locator card, sliding sleeve and the slide bar be installed in sliding sleeve.Cam axle, follower lever is reciprocating in the vertical direction, and drawing board affects by pull rope, and drawing pen just draws follower lever displacement curve on chart board.But this cam instrument can only draw the follower lever displacement curve of fixing profile sizing-Cam, there is limitation.
Summary of the invention
The utility model provides a kind of cam profile curve plotter, and it according to follower motion curve, can draw cam profile curve easily and accurately.
The utility model have employed following technical scheme: a kind of cam profile curve plotter, it comprises plotter body, described plotter body comprises the middle underframe of front frame body and back frame body and the horizontal positioned of vertically placing, offset distance adjustment motion is provided with in described middle underframe inside casing, described offset distance adjustment motion comprises the two active leading screw be parallel to each other and driven feed rods, push rod is provided with between active leading screw and driven feed rod, the bottom of push rod both sides is that spiral is connected with active leading screw and driven feed rod respectively, handwheel I is provided with in one end of active leading screw, rotate handwheel I, handwheel I drives push rod to move left and right along driven feed rod by active leading screw, thus adjustment offset distance, front frame body is set to frame structure, push rod rotational motion mechanism is provided with in described front frame body, described push rod rotational motion mechanism comprises push rod rotating driving device, push rod rotating driving device is arranged in the framework of front frame body, push rod rotating driving device and push rod are for being rotationally connected, push rod rotating driving device drives push rod to rotate, described back frame body is provided with push rod straight-line motion mechanism, push rod straight-line motion mechanism comprises push rod linear drive apparatus, push rod linear drive apparatus and push rod are for being in transmission connection.
Described push rod rotational motion mechanism is provided with handwheel II, gear I, gear II, gear III and gear IV, power transmission shaft I, power transmission shaft II, power transmission shaft III, handwheel II passes through power transmission shaft I with gear I for coaxial transmission is connected, be meshed between gear I with gear II, gear I is less than the diameter of gear II, gear I and gear II are deceleration transmission, gear II passes through between power transmission shaft II with gear III as coaxial transmission is connected, gear III is meshed with gear IV, gear III is less than the diameter of gear IV, for driving up between gear III and gear IV, power transmission shaft III is provided with in the bottom of gear IV, for coaxial transmission is connected between gear IV with power transmission shaft III, rotate handwheel II, handwheel II is successively by power transmission shaft I, gear I, gear II, power transmission shaft II, gear III and gear IV drive power transmission shaft III rotation, power transmission shaft III rotates around power transmission shaft III with plotter body, thus drive push rod to rotate.
Described push rod straight-line motion mechanism comprises handwheel III, gear V, tooth bar and power transmission shaft IV, handwheel III passes through power transmission shaft IV with gear V for coaxial transmission is connected, gear V is meshed with tooth bar, the top that tooth bar is arranged on push rod is fixedly connected with push rod, rotate handwheel III driven gear V to rotate, gear V is by rack drives push rod moving linearly.
The utility model has following beneficial effect: after have employed above technical scheme, not only structure is simple for the utility model cam profile curve plotter, easy to operate, the reversal process commonly used to draw cam contour is basic design principle, laminating teaching practice, integrate Angle ambiguity and Bit andits control, draw convenient, base radius is changed by regulating, make offset distance consecutive variations, the design of the cam profile curve of various types can be carried out intuitively, compensate for the defect that existing cam instrument can only draw the cam curve of fixed dimension.Be conducive to classmates by start draw various sizes, various forms, various pushrod movement rule cam profile curve better grasp and the design understanding cam profile curve.Extensively can be generalized to laboratory to use.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the utility model front view.
Fig. 3 is the top view of Fig. 2.
Fig. 4 is the left view of Fig. 2.
Detailed description of the invention
At Fig. 1, Fig. 2, in Fig. 3 and Fig. 4, the utility model provides a kind of cam profile curve plotter, it comprises plotter body, described plotter body comprises the middle underframe 3 of front frame body 1 and back frame body 2 and the horizontal positioned of vertically placing, offset distance adjustment motion is provided with in described middle underframe 3 inside casing, described offset distance adjustment motion comprises the two active leading screw 4 be parallel to each other and driven feed rods 5, push rod 6 is provided with between active leading screw 4 and driven feed rod 5, the bottom of push rod 6 both sides respectively with active leading screw 4 and driven feed rod 5 for spiral is connected, handwheel I 7 is provided with in one end of active leading screw 4, rotate handwheel I 7, handwheel I 7 drives push rod 6 to move left and right along driven feed rod 5 by active leading screw 4, thus adjustment offset distance, front frame body 1 is set to frame structure, push rod rotational motion mechanism is provided with in described front frame body 1, described push rod rotational motion mechanism comprises push rod rotating driving device, push rod rotating driving device is arranged in the framework of front frame body 1, push rod rotating driving device and push rod 6 are for being rotationally connected, push rod rotating driving device drives push rod 6 to rotate, described push rod rotational motion mechanism is provided with handwheel II 8, gear I 9, gear II 10, gear III 11 and gear IV 12, power transmission shaft I 13, power transmission shaft II 14, power transmission shaft III 18, handwheel II 8 passes through power transmission shaft I 13 with gear I 9 for coaxial transmission is connected, be meshed between gear I 9 with gear II 10, gear I 9 is less than the diameter of gear II 10, gear I 9 and gear II 10 are deceleration transmission, gear II 10 passes through between power transmission shaft II 14 with gear III 11 as coaxial transmission is connected, gear III 11 is meshed with gear IV 12, gear III 11 is less than the diameter of gear IV 12, for driving up between gear III 11 and gear IV 12, in fig. 2, power transmission shaft III 18 is provided with in the bottom of gear IV 12, by between gear IV 12 with power transmission shaft III 18 for coaxial transmission is connected, rotate handwheel II 8, handwheel II 8 is successively by power transmission shaft I 13, gear I 9, gear II 10, power transmission shaft II 14, gear III 11 and gear IV 12 drive power transmission shaft III 18 to rotate, power transmission shaft III 18 rotates around power transmission shaft III 18 with plotter body, thus drive push rod 6 to rotate, described back frame body 2 is provided with push rod straight-line motion mechanism, push rod straight-line motion mechanism comprises push rod linear drive apparatus, push rod linear drive apparatus and push rod 6 are for being in transmission connection, in FIG, described push rod straight-line motion mechanism comprises handwheel III 15, gear V 16, tooth bar 17 and power transmission shaft IV 19, handwheel III 15 passes through power transmission shaft IV 19 with gear V 16 for coaxial transmission is connected, gear V 16 is meshed with tooth bar 17, the top that tooth bar 17 is arranged on push rod 6 is fixedly connected with push rod 6, rotate handwheel III 15 driven gear V 16 to rotate, gear V 16 drives push rod 6 moving linearly by tooth bar 17.
Drawing course of the present utility model is: the first step: install drawing paper: mobile rack 17 adjusts to basic circle size, and is painted by basic circle; Second step: offset distance regulates: handwheel I 7 rotates a circle, realizes offset distance and moves 2mm; 3rd step: basic circle regulates: handwheel III 15 is carried, is separated with tooth bar 17, pull tooth bar 17, makes nib and basic circle tangent, then puts down handwheel III 15, engage with tooth bar 17, then basic circle adjustment is complete; 4th step: push rod 6 return motion: handwheel II 8 rotates a circle, realizes push rod 6 and reverses 10 degree; 5th step: rise: handwheel III 15 rotates lattice (being 1 degree) push rod 6 can outside mobile 1mm; 6th step: described point: after push rod 6 moves to assigned address, presses the pencil being arranged on push rod 6 front gently, realizes described point operation; 7th step: repeat the 4th, the 5th, the 6th step, carry out the described point of rise motion.8th step: far stop: at the end of push rod 6 moves to rise motion, continue to press drawing pencil on the other hand, another hand rotates handwheel II 8, carries out not motion far away; 9th step: backhaul: repeat the 4th, the 5th, the 6th step, carry out the described point of backhaul; Tenth step: closely stop: at the end of push rod 6 moves to drawback movement, continues to press drawing pencil on the other hand, and another hand rotates handwheel II 8, carries out far away stopping and moves; 11 step: profile is shaped: take off drawing paper, couples together each point with smooth curve, draws complete.
Claims (3)
1. a cam profile curve plotter, it is characterized in that it comprises plotter body, described plotter body comprises the middle underframe (3) of front frame body (1) and back frame body (2) and the horizontal positioned of vertically placing, offset distance adjustment motion is provided with in described middle underframe (3) inside casing, described offset distance adjustment motion comprises the two active leading screw (4) be parallel to each other and driven feed rods (5), push rod (6) is provided with between active leading screw (4) and driven feed rod (5), the bottom of push rod (6) both sides respectively with active leading screw (4) and driven feed rod (5) for spiral is connected, handwheel I (7) is provided with in one end of active leading screw (4), rotate handwheel I (7), handwheel I (7) drives push rod (6) to move left and right along driven feed rod (5) by active leading screw (4), thus adjustment offset distance, front frame body (1) is set to frame structure, push rod rotational motion mechanism is provided with in described front frame body (1), described push rod rotational motion mechanism comprises push rod rotating driving device, push rod rotating driving device is arranged in the framework of front frame body (1), push rod rotating driving device and push rod (6) are for being rotationally connected, push rod rotating driving device drives push rod (6) to rotate, described back frame body (2) is provided with push rod straight-line motion mechanism, push rod straight-line motion mechanism comprises push rod linear drive apparatus, push rod linear drive apparatus and push rod (6) are for being in transmission connection.
2. cam profile curve plotter according to claim 1, it is characterized in that described push rod rotational motion mechanism is provided with handwheel II (8), gear I (9), gear II (10), gear III (11) and gear IV (12), power transmission shaft I (13), power transmission shaft II (14), power transmission shaft III (18), handwheel II (8) by power transmission shaft I (13) with gear I (9) for coaxial transmission is connected, be meshed between gear I (9) with gear II (10), gear I (9) is less than the diameter of gear II (10), gear I (9) and gear II (10) are deceleration transmission, gear II (10) by between power transmission shaft II (14) with gear III (11) for coaxial transmission is connected, gear III (11) is meshed with gear IV (12), gear III (11) is less than the diameter of gear IV (12), for driving up between gear III (11) and gear IV (12), power transmission shaft III (18) is provided with in the bottom of gear IV (12), for coaxial transmission is connected between gear IV (12) with power transmission shaft III (18), rotate handwheel II (8), handwheel II (8) is successively by power transmission shaft I (13), gear I (9), gear II (10), power transmission shaft II (14), gear III (11) and gear IV (12) drive power transmission shaft III (18) to rotate, power transmission shaft III (18) rotates around power transmission shaft III (18) with plotter body, thus drive push rod (6) to rotate.
3. cam profile curve plotter according to claim 1, it is characterized in that described push rod straight-line motion mechanism comprises handwheel III (15), gear V (16), tooth bar (17) and power transmission shaft IV (19), handwheel III (15) by power transmission shaft IV (19) with gear V (16) for coaxial transmission is connected, gear V (16) is meshed with tooth bar (17), the top that tooth bar (17) is arranged on push rod (6) is fixedly connected with push rod (6), rotate handwheel III (15) driven gear V (16) to rotate, gear V (16) drives push rod (6) moving linearly by tooth bar (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420836359.8U CN204894897U (en) | 2014-12-26 | 2014-12-26 | Cam profile curve plotter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420836359.8U CN204894897U (en) | 2014-12-26 | 2014-12-26 | Cam profile curve plotter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204894897U true CN204894897U (en) | 2015-12-23 |
Family
ID=54917105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420836359.8U Expired - Fee Related CN204894897U (en) | 2014-12-26 | 2014-12-26 | Cam profile curve plotter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204894897U (en) |
-
2014
- 2014-12-26 CN CN201420836359.8U patent/CN204894897U/en not_active Expired - Fee Related
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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: 20151223 Termination date: 20161226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |