CN201565818U - Indexing cam unit used in pallet exchange of horizontal machining center - Google Patents
Indexing cam unit used in pallet exchange of horizontal machining center Download PDFInfo
- Publication number
- CN201565818U CN201565818U CN2009202985322U CN200920298532U CN201565818U CN 201565818 U CN201565818 U CN 201565818U CN 2009202985322 U CN2009202985322 U CN 2009202985322U CN 200920298532 U CN200920298532 U CN 200920298532U CN 201565818 U CN201565818 U CN 201565818U
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- China
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- cam
- exchange
- supporting plate
- curve
- cam follower
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Abstract
The utility model discloses an indexing cam unit used in pallet exchange of a horizontal machining center, which comprises a drive cylinder, a cam indexing mechanism part and a pallet rotating exchange part, wherein the cam indexing mechanism part comprises a cam driven by the drive cylinder and a cam follower arranged in the cam, the drive cylinder drives the cam to linearly move up and down, the cam follower carries out the curvilinear path motion in a space outline curve of the cam, the pallet rotating exchange part comprises a mandrel, the cam follower is fixedly connected with the mandrel, the mandrel is externally sleeved with a swivel bearing, the swivel bearing is arranged on a bearing block, a rotating shaft and a pallet exchange rack are fixed together through the mandrel, and the cam follower carries out the curvilinear path motion to drive the rotating shaft and the pallet exchange rack to rotate. With the utility model, pallet exchange motion has high precision, good reliability, small impact and short pallet exchange time, the cost is reduced, and good performance of the cam indexing mechanism can be farthest utilized and exerted.
Description
Technical field
The utility model relates to horizontal Machining centers relevant device technical field, exactly relates to a kind of index cam device that is used for the supporting plate exchange of horizontal Machining centers
Background technology
At present, the supporting plate switch in the horizontal Machining centers mainly divides the moving exchange of chain type holder, two kinds of frame modes of rack-and-pinion rubbing exchange by structure.
The moving exchange of chain type holder is to come the drive sprocket chain to finish the rectilinear motion exchange of supporting plate by motor.This kind exchanged form cost is higher, and impulsive force is big; Kinematic accuracy is low, poor reliability; Supporting plate is longer swap time.
Rack-and-pinion rubbing exchange is the exchange that rotatablely moves of finishing supporting plate by hydraulic jack driving gear bar driven gear Rotate 180 degree.This kind exchanged form cost height, impulsive force is big; Rack-and-pinion is easy to wear, rotary speed is restricted; Supporting plate is long swap time.
The utility model content
For solving the problems of the technologies described above, the utility model proposes a kind of index cam device that is applied in the exchange of horizontal Machining centers supporting plate, adopt the utility model, supporting plate exchange kinematic accuracy height, good reliability; Impulsive force is little, and supporting plate is short swap time; Can reduce cost again, maximally utilise and brought into play the premium properties of cam indexing mechanism.
The utility model is realized by adopting following technical proposals:
A kind of index cam device that is used for the exchange of horizontal Machining centers supporting plate is characterized in that: comprise driving oil cylinder, cam indexing mechanism part and supporting plate rotation switching part; Described cam indexing mechanism partly comprises the cam and the cam follower that is contained in the described cam through driving hydraulic oil cylinder driving, described driving hydraulic oil cylinder driving cam is made rectilinear motion up and down, and described cam follower is done the curvilinear path motion in the space profiles curve of cam; Described supporting plate rotation switching part comprises axle, cam follower is fixedlyed connected with axle, axle is with swivel bearing outward, swivel bearing is installed on the bearing block, rotating shaft and supporting plate exchange frame are fixed together through described axle, cam follower is done the curvilinear path motion, driven rotary axle and the rotation of supporting plate exchange frame.
Described space profiles curve is made up of two on all four curves, and every curve is then kissed successively to connect by straight line, buffer curve, oblique line, buffer curve and straight line and formed.
Described buffer curve is a parabola.
Described driving oil cylinder is fixed on the hold-down support.
The beneficial effects of the utility model show:
1, because the utility model adopts " driving oil cylinder, cam indexing mechanism part and supporting plate rotation switching part " to form the index cam device, compared with prior art, supporting plate exchange kinematic accuracy height of the present utility model, good reliability; Impulsive force is little, and supporting plate is short swap time; Can reduce cost again, maximally utilise and brought into play the premium properties of cam indexing mechanism.
2, the utility model adopts the technical scheme of " the space profiles curve is made up of two on all four curves; every curve is then by straight line; buffer curve; oblique line; buffer curve and straight line are kissed successively to connect and formed ", thereby correspondence has realized that cam follower is by zero-speed-acceleration (buffering)-at the uniform velocity-deceleration (buffering)-zero-speed, cam follower is made the curvilinear path rolling movement in the space profiles curve, drive described rotating part and finish the exchange of supporting plate, speed in whole rotary movement is not constant, but change, high impact forces is then big more more to consider rate of change (acceleration) simultaneously, thereby can change by speed-adaptive after adopting this scheme, and functional, thereby realize not only speed change but also rapid movement stably.
3, " buffer curve is a parabola " that adopts owing to the utility model, and the acceleration of motion in parabola zone is a constant, has significantly reduced the rate of change of speed, has reduced impact, thus the order motion is steadily reliably.
Description of drawings
The utility model is described in further detail below in conjunction with specification drawings and specific embodiments, wherein:
Fig. 1 is an overall structure schematic diagram of the present utility model
Fig. 2 is the structural representation of cam
Fig. 3 is the expansion schematic diagram of space contour curve among Fig. 2
Mark among the figure:
1, hold-down support, 2, drive oil cylinder, 3, cam, 4, cam follower, 5, the supporting plate exchange frame, 6, rotating shaft, 7, swivel bearing, 8, axle, 9, bearing block, 10, the space profiles curve, 11, straight line, 12, buffer curve, 13, oblique line.
The specific embodiment
With reference to Figure of description 1, the utility model discloses a kind of index cam device that is used for the exchange of horizontal Machining centers supporting plate, comprise driving oil cylinder 2, cam indexing mechanism part and supporting plate rotation switching part; Described cam indexing mechanism partly comprises through driving oil cylinder 2 cam 3 that drives and the cam follower 4 that is contained in the described cam 3, described driving oil cylinder 2 driving cams 3 are made rectilinear motion up and down, and described cam follower 4 is done the curvilinear path motion in the space profiles curve 10 of cam 3; Described supporting plate rotation switching part comprises axle 8, cam follower 4 is fixedlyed connected with axle 8, the axle 8 outer swivel bearings 7 that are with, swivel bearing 7 is installed on the bearing block 9, rotating shaft 6 and supporting plate exchange frame 5 are fixed together through described axle 8, cam follower 4 is done the curvilinear path motion, driven rotary axle 6 and 5 rotations of supporting plate exchange frame.
On the basis of embodiment 1, as a better embodiment of the present utility model, with reference to Figure of description 1 and 2 and 3, because the speed in whole rotary movement is not constant, but change, high impact forces is then big more more to consider rate of change (acceleration) simultaneously, must one of design can speed-adaptive change and well behaved characteristic curve, thereby realizes new type of cam 3 mechanisms not only speed change but also rapid movement stably.
Thereby space profiles curve 10 of the present utility model is made up of two on all four curves, every curve is then kissed to connect successively by straight line 11, buffer curve 12, oblique line 13, buffer curve 12 and straight line 11 and is formed, thereby correspondence has realized that cam follower 4 is by zero-speed-acceleration (buffering)-at the uniform velocity-deceleration (buffering)-zero-speed, cam follower 4 is made the curvilinear path rolling movement in space profiles curve 10, drive the exchange that described rotating part is finished supporting plate.Buffer curve is a parabola, and the acceleration of motion in parabola zone is a constant, has significantly reduced the rate of change of speed, has reduced impact, thereby the order motion is steadily reliable.Described driving oil cylinder 2 is fixed on the hold-down support 1.
Claims (4)
1. an index cam device that is used for the exchange of horizontal Machining centers supporting plate is characterized in that: comprise driving oil cylinder (2), cam indexing mechanism part and supporting plate rotation switching part; Described cam indexing mechanism partly comprises through driving the cam (3) that oil cylinder (2) drives and being contained in cam follower (4) in the described cam (3), described driving oil cylinder (2) driving cam (3) is made rectilinear motion up and down, and described cam follower (4) is done the curvilinear path motion in the space profiles curve (10) of cam (3); Described supporting plate rotation switching part comprises axle (8), cam follower (4) is fixedlyed connected with axle (8), the outer swivel bearing (7) that is with of axle (8), swivel bearing (7) is installed on the bearing block (9), rotating shaft (6) and supporting plate exchange frame (5) are fixed together through described axle (8), cam follower (4) is done the curvilinear path motion, driven rotary axle (6) and supporting plate exchange frame (5) rotation.
2. the index cam device that is used for the exchange of horizontal Machining centers supporting plate according to claim 1, it is characterized in that: described space profiles curve (10) is made up of two on all four curves, and every curve is then kissed to connect successively by straight line (11), buffer curve (12), oblique line (13), buffer curve (12) and straight line (11) and formed.
3. the index cam device that is used for the exchange of horizontal Machining centers supporting plate according to claim 2, it is characterized in that: described buffer curve is a parabola.
4. the index cam device that is used for the exchange of horizontal Machining centers supporting plate according to claim 1, it is characterized in that: described driving oil cylinder (2) is fixed on the hold-down support (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202985322U CN201565818U (en) | 2009-12-26 | 2009-12-26 | Indexing cam unit used in pallet exchange of horizontal machining center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202985322U CN201565818U (en) | 2009-12-26 | 2009-12-26 | Indexing cam unit used in pallet exchange of horizontal machining center |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201565818U true CN201565818U (en) | 2010-09-01 |
Family
ID=42658102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202985322U Expired - Lifetime CN201565818U (en) | 2009-12-26 | 2009-12-26 | Indexing cam unit used in pallet exchange of horizontal machining center |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201565818U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554696A (en) * | 2010-12-15 | 2012-07-11 | 中国科学院沈阳自动化研究所 | Multi-station conversion indexing mechanism |
| US20130202389A1 (en) * | 2012-02-06 | 2013-08-08 | Deckel Maho Pfronten Gmbh | Pallet changing device for a machine tool and machine tool comprising a pallet changing device |
-
2009
- 2009-12-26 CN CN2009202985322U patent/CN201565818U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554696A (en) * | 2010-12-15 | 2012-07-11 | 中国科学院沈阳自动化研究所 | Multi-station conversion indexing mechanism |
| US20130202389A1 (en) * | 2012-02-06 | 2013-08-08 | Deckel Maho Pfronten Gmbh | Pallet changing device for a machine tool and machine tool comprising a pallet changing device |
| US8978218B2 (en) * | 2012-02-06 | 2015-03-17 | Deckel Maho Pfronten Gmbh | Pallet changing device for a machine tool and machine tool comprising a pallet changing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100901 |
|
| CX01 | Expiry of patent term |