CN201823839U - Cam follower device - Google Patents
Cam follower device Download PDFInfo
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- CN201823839U CN201823839U CN2010205473776U CN201020547377U CN201823839U CN 201823839 U CN201823839 U CN 201823839U CN 2010205473776 U CN2010205473776 U CN 2010205473776U CN 201020547377 U CN201020547377 U CN 201020547377U CN 201823839 U CN201823839 U CN 201823839U
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Abstract
The utility model discloses a cam follower device which comprises a follower and a cam. The cam comprises a base circle part and a driving shaft hole; the base circle part comprises an upper semi-circle part and a lower semi-circle part which are symmetrically arranged; the upper semi-circle part comprises an upper left semi-circle part and an upper right semi-circle part which are symmetrically arranged; the upper left semi-circle part and the upper right semi-circle part extend in the identical direction and respectively form a left bulging part and a right bulging part; the left bulging part and the right bulging part form a bulging part; the upper right semi-circle part and the right bulging part extend in the identical direction to form an increasing part; and the upper left semi-circle part, the upper right semi-circle part, the left bulging part, the right bulging part and the increasing part form an integral structure. The device not only can ensure that the stability is high when the follower is jacked up by the cam, but also has simple structure and facilitates the improvement of the operation efficiency.
Description
Technical field
The utility model relates to a kind of cam gear, relates in particular to a kind of cam follower device, specifically is applicable to the transmission of workpiece in the stamped metal product punching course.
Background technology
Present stage, the stamped metal product is in its production process, need be with original workpiece drawing, this process mainly relies on punching and drift to cooperate and finishes, during punching press, one movable push rod is arranged in the punching, this push rod can move up and down, and this push rod contacts with the workpiece that is positioned at punching, and after workpiece was stamped moulding, push rod moved upward with the workpiece of existing its contact of jack-up, workpiece ejects punching the most at last, the workpiece that is ejected punching is clamped to the material stock zone by chuck again, and when workpiece is retained in the process in material stock district, push rod moves downward to starting point.Moving up and down of push rod relies on cam to realize, under the certain situation of cam rotating speed, adopt conventional cam, the speed that can cause push rod jack-up workpiece is too soon or too slow: if the speed of push rod jack-up workpiece is too fast, be ejected the easy deflection of workpiece of punching, cause the chuck can't the gripping workpiece; If the speed of push rod jack-up workpiece is too slow, when collet movement was to punching, workpiece was not also ejected punching fully, and chuck can't holding workpiece.
The Chinese patent Granted publication number is CN100570129C, and Granted publication day is the cam axle underneath type valve mechanism that the utility model patent on December 26th, 2009 discloses a kind of motorcycle engine.It includes camshaft, the inlet and outlet push rod, inlet and outlet rocking arm and inlet and outlet door, have an admission cam and an exhaust cam on the camshaft in this utility model, this inlet and outlet cam promotes the inlet and outlet push rod by dish type flat air inlet tappet and exhaust tappet respectively, the axis of this inlet and outlet tappet all with the axis quadrature of camshaft, the cam profile of inlet and outlet cam is formed by connecting by the line segment of nine sections head and the tail smooth excessivenesses respectively.Though can guaranteeing inlet and outlet, the cam follower structure that this utility model is taked have higher timing accuracy, breathing action that continuity and transmission efficiency are preferably preferably arranged, but the cam in the cam follower structure that it adopts still is ordinary construction commonly used, during use, still can cause push rod by jack-up too soon or too slow defective, can't guarantee that push rod is by the stationarity of jack-up.
The utility model content
The purpose of this utility model be overcome the push rod that exists in the prior art by cam jack-up too soon or too slow defective and problem, provide a kind of push rod by the stronger cam follower device of the stationarity of cam jack-up.
For realizing above purpose, technical solution of the present utility model is: a kind of cam follower device, comprise push rod and under the cam that is provided with, described cam comprises basic circle portion and drive shaft hole, this drive shaft hole is arranged on the centre position of basic circle portion, basic circle portion comprises symmetrically arranged upper semi-circle portion and lower half circle portion, upper semi-circle portion comprises symmetrically arranged upper left half-round and upper right half-round, upper left half-round, upper right half-round are together towards extension, form left protuberance and right protuberance respectively, and left protuberance, right protuberance are formed protuberance;
Described upper right half-round and right protuberance are together towards extending to form increase portion;
The line of symmetry of described upper left half-round and upper right half-round is middle line of symmetry, and the vertical axis of this centre line of symmetry and basic circle portion coincides;
Described upper left half-round, upper right half-round, left protuberance, right protuberance and increase portion are structure as a whole.
Described left protuberance, right protuberance are symmetrical arranged, and its line of symmetry is middle line of symmetry.
Intersection point in the middle of line of symmetry and protuberance intersect in the middle of described, the left and right sides of middle intersection point is respectively arranged with a first from left intersection point and a right intersection point, the left side of the first from left intersection point is disposed with the second from left intersection point, left three intersection points and left four intersection points, and the right side of a right intersection point is disposed with right two intersection points, right three intersection points, right four intersection points and right five intersection points;
Distance in the middle of described between the center of circle of intersection point, the first from left intersection point, a right intersection point, right two intersection points, right three intersection points and basic circle portion is identical, is a spacing;
Distance between the center of circle of described the second from left intersection point, left three intersection points, left four intersection points, right four intersection points, right five intersection points and basic circle portion is respectively No. two spacings, No. three spacings, No. four spacings, No. five spacings and No. six spacings;
A described spacing is greater than No. two spacings, and No. two spacings are greater than No. five spacings, and the nothing spacing is greater than No. three spacings, and No. three spacings are greater than No. four spacings, and No. four spacings are greater than No. six spacings.
The diameter of described basic circle portion is 250.79mm, and the maximum distance axis hole circle portion between described drive shaft hole and the lower half circle portion is apart from be 50.75mm, and the maximum distance protuberance circle portion distance between described protuberance and the lower half circle portion is 285.32mm;
The length of a described spacing is 159.6mm, and the length of No. two spacings is 159.2mm, and the length of No. five spacings is 158.94mm, and the length of No. three spacings is 158.9mm, and the length of No. four spacings is 158.47mm, No. six spacings length be 158.2mm.
Compared with prior art, the beneficial effects of the utility model are:
1, because upper right half-round in a kind of cam follower device of the utility model and right protuberance is same towards extending to form increase portion, and upper left half-round, upper right half-round, left protuberance, right protuberance and increase portion are structure as a whole, this kind design can be so that the inertia of cam rotation be better, and the power difference at each position of cam is smaller, thereby can drive push rod stably, and then make push rod too fast Yu the slow excessively defective that rises can not occur.Therefore push rod is stronger by the stationarity of cam jack-up in the utility model.
2, since in a kind of cam follower device of the utility model by on the upper right half-round of existing cam, right protuberance with towards increase increase portion, this increase portion can guarantee that cam is under the certain situation of rotating speed, jack-up push rod stably, thereby guarantee that workpiece is ejected punching stably, be convenient to the clamping of chuck, help the raising of operating efficiency, and this design of the present utility model is comparatively simple, is easy to promote.Therefore the utility model is simple in structure, is convenient to increase work efficiency.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the front view of the utility model cam.
Fig. 3 is the left view of the utility model cam.
Among the figure: push rod 1, cam 2, basic circle portion 3, upper semi-circle portion 31, upper left half-round 311, upper right half-round 312, lower half circle portion 32, drive shaft hole 4, protuberance 5, left protuberance 51, right protuberance 52, increase portion 6, middle line of symmetry 7,81, No. three spacings 82 of 8, No. two spacings of a spacing, 84, No. six spacings 85 of 83, No. five spacings of No. four spacings, axis hole circle portion distance 10, protuberance circle portion distance 11, middle intersection point A, the first from left intersection points B, a right intersection point C, the second from left intersection point D, a left side three intersection point E, left four intersection point F, right two intersection point G, right three intersection point H, right four intersection I, right five intersection point J.
The specific embodiment
Below in conjunction with the description of drawings and the specific embodiment the utility model is described in further detail
Referring to Fig. 1-Fig. 3, a kind of cam follower device, comprise push rod 1 and under the cam 2 that is provided with, cam 2 comprises basic circle portion 3 and drive shaft hole 4, drive shaft hole 4 is arranged on the centre position of basic circle portion 3, basic circle portion 3 comprises symmetrically arranged upper semi-circle portion 31 and lower half circle portion 32, upper semi-circle portion 31 comprises symmetrically arranged upper left half-round 311 and upper right half-round 312, upper left half-round 311, upper right half-round 312 are together towards extension, form left protuberance 51 and right protuberance 52 respectively, and left protuberance 51, right protuberance 52 are formed protuberances 5;
One of advantage of the present utility model is: upper right half-round 312 and right protuberance 52 are together towards extending to form increase portion 6, upper left half-round 311 is middle line of symmetry 7 with the line of symmetry of upper right half-round 312, this centre line of symmetry 7 coincides with the vertical axis of basic circle portion 3, and upper left half-round 311, upper right half-round 312, left protuberance 51, right protuberance 52 are structure as a whole with increase portion 6.This kind design can guarantee that push rod 1 is by the stationarity of cam 2 jack-up.
Preferred left protuberance 51, right protuberance 52 are symmetrical arranged, and its line of symmetry is middle line of symmetry 7.
The another advantage of the utility model is: intersection point A in the middle of middle line of symmetry 7 intersects at protuberance 5, the left and right sides of middle intersection point A is respectively arranged with a first from left intersection points B and a right intersection point C, the left side of the first from left intersection points B is disposed with the second from left intersection point D, left three intersection point E and left four intersection point F, and the right side of a right intersection point C is disposed with right two intersection point G, right three intersection point H, right four intersection I and right five intersection point J;
Intersection point A in the middle of preferred, the first from left intersection points B, a right intersection point C, right two intersection point G, distance between the center of circle of right three intersection point H and basic circle portion 3 is identical, it is a spacing 8, simultaneously, the second from left intersection point D, a left side three intersection point E, a left side four intersection point F, right four intersection I, distance between the center of circle of right five intersection point J and basic circle portion 3 is respectively spacing 81 No. two, No. three spacings 82, No. four spacings 83, No. five spacings 84 and No. six spacings 85, and a spacing 8 is greater than No. two spacings 81, No. two spacings 81 are greater than No. five spacings 84, No. five spacings 84 are greater than No. three spacings 82, No. three spacings 82 greater than 83, No. four spacings 83 of No. four spacings greater than No. six spacings 85.This kind design can further improve the exercise performance of cam 2, makes it have better steadily jack-up effect to push rod 1.
An advantage more of the present utility model is: the diameter of basic circle portion 3 is 250.79mm, maximum distance axis hole circle portion between drive shaft hole 4 and the lower half circle portion 32 is 50.75mm apart from 10, maximum distance protuberance circle portion between protuberance 5 and the lower half circle portion 32 is 285.32mm apart from 11, and the length of a spacing 8 be the length of 159.6mm, No. two spacings 81 be the length of 159.2mm, No. five spacings 84 be the length of 158.94mm, No. three spacings 82 be 158.9mm,, the length of No. four spacings 83 be 158.47mm, No. six spacings 85 length be 158.2mm.This kind parameter is designed to a good embodiment, can make the utility model obtain the best implementation result of steady jack-up.
Therefore the utility model not only can guarantee that push rod is stronger by the stationarity of cam jack-up, and simple in structure, be convenient to increase work efficiency.
The above only is a better embodiment of the present utility model; protection domain of the present utility model does not exceed with above-mentioned embodiment; as long as the equivalence that those of ordinary skills do according to the utility model institute disclosure is modified or changed, all should include in the protection domain of putting down in writing in claims.
Claims (4)
1. cam follower device, comprise push rod (1) and under the cam (2) that is provided with, described cam (2) comprises basic circle portion (3) and drive shaft hole (4), this drive shaft hole (4) is arranged on the centre position of basic circle portion (3), basic circle portion (3) comprises symmetrically arranged upper semi-circle portion (31) and lower half circle portion (32), upper semi-circle portion (31) comprises symmetrically arranged upper left half-round (311) and upper right half-round (312), upper left half-round (311), upper right half-round (312) is together towards extension, form left protuberance (51) and right protuberance (52) respectively, and left protuberance (51), right protuberance (52) is formed protuberance (5), it is characterized in that:
Described upper right half-round (312) and right protuberance (52) are together towards extending to form increase portion (6);
Described upper left half-round (311) is middle line of symmetry (7) with the line of symmetry of upper right half-round (312), and this centre line of symmetry (7) coincides with the vertical axis of basic circle portion (3);
Described upper left half-round (311), upper right half-round (312), left protuberance (51), right protuberance (52) are structure as a whole with increase portion (6).
2. a kind of cam follower device according to claim 1 is characterized in that: described left protuberance (51), stone protuberance (52) are symmetrical arranged, and its line of symmetry is middle line of symmetry (7).
3. a kind of cam follower device according to claim 1 and 2 is characterized in that:
Intersection point (A) in the middle of line of symmetry (7) intersects at protuberance (5) in the middle of described, the left and right sides of middle intersection point (A) is respectively arranged with a first from left intersection point (B) and a right intersection point (C), the left side of the first from left intersection point (B) is disposed with the second from left intersection point (D), left three intersection points (E) and left four intersection points (F), and the right side of a right intersection point (C) is disposed with right two intersection points (G), stone three intersection points (H), right four intersection points (I) and right five intersection points (J);
Distance in the middle of described between the center of circle of intersection point (A), the first from left intersection point (B), a right intersection point (C), right two intersection points (G), right three intersection points (H) and basic circle portion (3) is identical, is a spacing (8);
Distance between the center of circle of described the second from left intersection point (D), left three intersection points (E), left four intersection points (F), right four intersection points (I), right five intersection points (J) and basic circle portion (3) is respectively No. two spacings (81), No. three spacings (82), No. four spacings (83), No. five spacings (84) and No. six spacings (85);
A described spacing (8) is greater than No. two spacings (81), and No. two spacings (81) are greater than No. five spacings (84), and No. five spacings (84) are greater than No. three spacings (82), and No. three spacings (82) are greater than No. four spacings (83), and No. four spacings (83) are greater than No. six spacings (85).
4. a kind of cam follower device according to claim 3 is characterized in that:
The diameter of described basic circle portion (3) is 250.79mm, maximum distance axis hole circle portion between described drive shaft hole (4) and the lower half circle portion (32) is 50.75mm apart from (10), and the maximum distance protuberance circle portion between described protuberance (5) and the lower half circle portion (32) is 285.32mm apart from (11);
The length of a described spacing (8) is 159.6mm, the length of No. two spacings (81) is 159.2mm, the length of No. five spacings (84) is 158.94mm, the length of No. three spacings (82) is 158.9mm, the length of No. four spacings (83) is 158.47mm, No. six spacings (85) length be 158.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205473776U CN201823839U (en) | 2010-09-29 | 2010-09-29 | Cam follower device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205473776U CN201823839U (en) | 2010-09-29 | 2010-09-29 | Cam follower device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201823839U true CN201823839U (en) | 2011-05-11 |
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ID=43962399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205473776U Expired - Fee Related CN201823839U (en) | 2010-09-29 | 2010-09-29 | Cam follower device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201823839U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489620A (en) * | 2011-12-31 | 2012-06-13 | 昆山圣泰机电制造有限公司 | Material-pressing limiting device for stage die |
| CN108747133A (en) * | 2018-07-27 | 2018-11-06 | 常州机电职业技术学院 | A kind of welding gun swinging device |
| CN110583834A (en) * | 2019-10-23 | 2019-12-20 | 江苏飞龙食品机械有限公司 | Lollipop stick cuttage device with short-distance quick cuttage |
-
2010
- 2010-09-29 CN CN2010205473776U patent/CN201823839U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489620A (en) * | 2011-12-31 | 2012-06-13 | 昆山圣泰机电制造有限公司 | Material-pressing limiting device for stage die |
| CN108747133A (en) * | 2018-07-27 | 2018-11-06 | 常州机电职业技术学院 | A kind of welding gun swinging device |
| CN110583834A (en) * | 2019-10-23 | 2019-12-20 | 江苏飞龙食品机械有限公司 | Lollipop stick cuttage device with short-distance quick cuttage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20130929 |