CN101518841A - Method for controlling quick-return of cutter of gear shaper and quick-return device - Google Patents
Method for controlling quick-return of cutter of gear shaper and quick-return device Download PDFInfo
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- CN101518841A CN101518841A CN200910061276A CN200910061276A CN101518841A CN 101518841 A CN101518841 A CN 101518841A CN 200910061276 A CN200910061276 A CN 200910061276A CN 200910061276 A CN200910061276 A CN 200910061276A CN 101518841 A CN101518841 A CN 101518841A
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- cutter
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- return
- cutter shaft
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Abstract
The invention provides a method for controlling quick-return of a cutter of a gear shaper and a quick-return device, and belongs to the technical field of gear shapers. The quick-return of the cutter of the gear shaper is realized by the combined action of a hydraulic servosystem and a cutter quick-return mechanism on a cutter shaft of the gear shaper. The quick-return device comprises the hydraulic servosystem and the cutter quick-return mechanism; and a front connection rod of the quick-return device and a piston of the hydraulic servosystem are connected with the cutter shaft. Because the quick-return device uses the hydraulic servosystem to control the movement of the cutter shaft, the cutting force is large, and the cutting depth is 2 to 2.5 times more than that of the prior gear shaper; simultaneously because a four-bar cutter quick-return mechanism is used to control the cutter shaft, the cutting speed is improved by 25 to 50 percent, and the changeable circular feed cutting can be performed, and the circular feed amount is improved by 50 percent; and the total efficiency of the machine is improved by three times. Moreover, the noise in the operating process is greatly lowered, and the hard tooth face processing can be performed.
Description
Technical field
The present invention relates to a kind of anxious method of returning of gear shapping machine cutter of controlling, the invention still further relates to this urgency of realization and return used anxious return device.
Background technology
Present gear shapping machine generally adopts toggle, changes circular motion into cutter linear interpolation campaign.This mechanism has following shortcoming:
1, the approaching and sine wave curve of the curve movement of toggle, as shown in Figure 1, cutter is to change at a high speed from low speed in the process of cutting workpiece, again from reducing to the change campaign cutting of low speed at a high speed, and the wearing and tearing of cutter have direct relation with the highest cutting speed, have so just reduced stock-removing efficiency greatly.
2, cutting component is bigger, and as can see from Figure 2, crank connecting link is the power of giving sideling to the cutter shaft of gear shapping machine, and the cutting force of cutter shaft must have certain loss, and is also influential to processing De Cu Unfeigned degree simultaneously.
3, toggle will have a driving box to drive, the structure more complicated, and the noise of driving box is also very big simultaneously.
Do not adopt the hydraulic pressure stroke gear shapping machine of toggle owing to there is not servo apply hydraulic pressure mechanism, gear shaping speed is not high.When the speed of service of hydraulic jack reaches 12M/min, impulsive force during the oil cylinder commutation just begins to strengthen, and the best gear shaping speed of gear shapping machine is 12-24M/min, in order to improve the speed of service of gear shapping machine, hydraulic pressure stroke gear shapping machine is to add buffering when commutation, but,, influenced result of use so speed is not high always because buffering is limited in one's ability.The speed of service curve of hydraulic jack gear shapping machine is seen Fig. 3.Partly for commutation does not add recoil, dotted line is for having added recoil mechanism for solid line among the figure.As can be seen from the figure, too high even added recoil mechanism as speed, impact still too big.So the speed of this structure can't improve always.
Summary of the invention
The objective of the invention is to provide a kind of Hydrauservo System and the merging of cutter quick return mechanism are applied on the gear shapping machine, make the gear shapping machine cutter when having higher cutting speed, cut a kind of anxious method and anxious return device that returns of gear shapping machine cutter of controlling of great efforts.
The object of the present invention is achieved like this: a kind of anxious method of returning of gear shapping machine cutter of controlling is characterized in that: in the gear shapping machine cutter shaft, make the gear shapping machine cutter realize anxious returning Hydrauservo System and the acting in conjunction of cutter quick return mechanism.
The anxious return device of a kind of gear shapping machine cutter comprises Hydrauservo System and cutter quick return mechanism, and the front rod of anxious return device and the piston of Hydrauservo System are connected with cutter shaft.
The Hydrauservo System oil cylinder is provided with oil cylinder epicoele and oil cylinder cavity of resorption, place in-oil cylinder spool to be connected with piston, piston is connected with cutter shaft, is provided with oil-in and oil-out on spool, oil-in and oil-out communicate with oil circuit, and spool is provided with the spool breach that communicates with oil cylinder epicoele and oil cylinder cavity of resorption.
The crank disc of cutter quick return mechanism is connected with back link, and back link is connected with fork on being installed in hold-down support, and fork is connected with front rod, and front rod is connected with cutter shaft.
The anxious return device of gear shapping machine cutter provided by the invention, owing to adopted the motion of Hydrauservo System control cutter shaft, cutting force is very big, cutting depth can be 2-2.5 times of present gear shapping machine; Adopted four connecting rod cutter quick return mechanisms control cutter shaft simultaneously, cutting speed can improve 25%-50%, and can become the rotary feed cutting, and rotary feed can improve 50%; The total efficient of lathe can improve 3 times.Noise reduces greatly in the course of work, can carry out hard flank of tooth processing.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is the movement profiles of toggle, and t represents the time, v speed.
Fig. 2 is the fundamental diagram of toggle.
Fig. 3 is the speed of service curve map of hydraulic jack gear shapping machine, and t represents the time, v speed.
Fig. 4, the 5th, Hydrauservo System schematic diagram of the present invention.
Fig. 6 is the present invention's four connecting rod cutter quick return mechanism schematic diagrams.
Fig. 7 is the curve map of quadric chain quick return mechanism control cutter shaft of the present invention motion, and dotted line is the sinusoidal wave curve movement of toggle among the figure, and solid line is a cutter quick return mechanism curve movement, and V represents tool speed.
The specific embodiment
Operation principle of the present invention be with Hydrauservo System and four connecting rod cutter quick return mechanism actings in conjunction in the cutter shaft of gear shapping machine, make the gear shapping machine cutter when having higher movement velocity, keep bigger cutting force, improved the operating efficiency of gear shapping machine.
Wherein Hydrauservo System provides cutting force, and the cutter quick return mechanism provides movement velocity, and both actings in conjunction make the gear shapping machine cutter realize anxious returning in the gear shapping machine cutter shaft.
The anxious return device of a kind of gear shapping machine cutter comprises Hydrauservo System and cutter quick return mechanism, and the front rod 10 of anxious return device and the piston 3 of Hydrauservo System are connected with cutter shaft 11.
Hydrauservo System oil cylinder 2 is provided with oil cylinder epicoele 5 and oil cylinder cavity of resorption 6, place the spool 1 in the oil cylinder 2 to be connected with piston 3, piston 3 is connected with cutter shaft 11, on spool 1, be provided with oil-in 4 and oil-out 7, oil-in 4 and oil-out 7 communicate with oil circuit 8, and spool 1 is provided with the spool breach 9 that communicates with oil cylinder epicoele 5 and oil cylinder cavity of resorption 6.
The crank disc 12 of cutter quick return mechanism is connected with back link 13, and back side rod 13 is connected with fork 15 on being installed in hold-down support 14, and fork 15 is connected with front rod 10, and front rod 10 is connected with cutter shaft 11.Cutter shaft 11 is actually the integrated of Fig. 4.
The Hydrauservo System course of work is as follows: as shown in Figure 4, spool 1 moves downward, hydraulic oil enters oil cylinder epicoele 5 through the oil circuit 8 of spool 1 by spool breach 9 from oil-in 4, the oil of oil cylinder cavity of resorption 6 flows out from oil-out 7 through another spool valve breach 16, piston 3 moves downward, and drives cutter shaft 11 and moves downward.When speeding up that spool 1 moves downward, spool breach 9 increases, and the flow of oil-feed strengthens, and piston 3 downward movement velocitys are accelerated.The speed that moves downward when spool 1 slows down, and spool 1 reduces with the breach 9 of cutter shaft epicoele oil-feed, and the flow of oil-feed reduces, and the downward movement velocity of cutter shaft reduces.Spool 1 stop motion, piston 3 staggers into and out of oily breach fully with spool, and oil inlet and outlet all blocks, the cutter shaft stop motion.
As shown in Figure 5, spool 1 moves upward, and hydraulic oil enters oil cylinder cavity of resorption 6 from oil-in 4 through the oil circuit 8 of spool 1, and the oil of oil cylinder epicoele 5 flows out from oil-out through spool breach 9, and piston 3 drives cutter shaft 11 and moves upward.Accelerate when spool 1 upward speed, the breach of spool 1 and 6 oil-feeds of cutter shaft cavity of resorption strengthens, and the flow of oil-feed strengthens, and the movement velocity that piston 3 makes progress is accelerated.When spool 1 upward speed slows down, spool 1 reduces with the breach of piston 3 cavity of resorption oil-feeds, and the flow of oil-feed reduces, and the movement velocity that cutter shaft makes progress reduces.Spool 1 stop motion, piston 3 staggers into and out of oily breach fully with spool 1, and oil inlet and outlet all blocks, the cutter shaft stop motion.
So the movement velocity of cutter shaft 11 and track are followed the movement velocity and the track of spool 1 all the time, hydraulic servo principle that Here it is.
Cutter quick return mechanism: since the movement velocity of cutter shaft 11 and track are followed the movement velocity and the track of spool 1 all the time, as long as just can make that to 1 one desirable movement velocitys of spool and track the cutting ability of gear shapping machine improves greatly.The cutter quick return mechanism is a quadric chain, its structure as shown in Figure 6, the crank disc 12 of cutter quick return mechanism is connected with back link 13, back side rod 13 is connected with fork 15 on being installed in hold-down support 14, fork 15 is connected with front rod 10, and front rod 10 is connected with cutter shaft 11.
As can be seen from Figure 6, crank disc 12 revolves by direction as shown and turns around, and drives back links 13 motions by crank disc 12, and back link 13 drives forks 15 motions, finally drives cutter shafts 11 reciprocating actions by front rod 10.The required angle of cutter shaft 11 down-cuttings is α, and the angle that cutter upwards returns is β, α〉β, and crank disc 12 is uniform speed rotations, so the time that the time ratio of cutter shaft down-cutting returns is long.Fig. 7 is the curve of quadric chain cutter shaft motion, shows in the function curve diagram, and downward time of cutter shaft 11 is elongated, and the downward maximum speed of cutter shaft 11 is also much lower than the maximum speed of sine wave simultaneously.
The benefit of this mechanism is exactly: when the gear shaping speed of lathe equates with the speed of existing prototype structure gear shapping machine, the durability of pinion cutter will improve greatly.As the method that equates of the durability that adopts pinion cutter, the gear shapping machine of new construction just can improve gear shaping speed greatly, has just improved efficient.
Claims (4)
1, a kind of anxious method of returning of gear shapping machine cutter of controlling is characterized in that: in the gear shapping machine cutter shaft, make the gear shapping machine cutter realize anxious returning Hydrauservo System and the acting in conjunction of cutter quick return mechanism.
2, a kind of anxious device that returns of the described control gear shapping machine of claim 1 cutter of realizing, it is characterized in that: anxious return device comprises Hydrauservo System and cutter quick return mechanism, and the piston (3) of front rod of anxious return device (10) and Hydrauservo System is connected with cutter shaft (11).
3, the anxious return device of gear shapping machine cutter according to claim 2, it is characterized in that: Hydrauservo System oil cylinder (2) is provided with oil cylinder epicoele (5) and oil cylinder cavity of resorption (6), place the spool (1) in the oil cylinder (2) to be connected with piston (3), piston (3) is connected with cutter shaft (11), on spool (1), be provided with oil-in (4) and oil-out (7), oil-in (4) and oil-out (7) communicate with oil circuit (8), and spool (1) is provided with the spool breach (9) that communicates with oil cylinder epicoele (5) and oil cylinder cavity of resorption (6).
4, the anxious return device of gear shapping machine cutter according to claim 2, it is characterized in that: the crank disc of cutter quick return mechanism (12) is connected with back link (13), back link (13) is connected with fork (15) on being installed in hold-down support (14), fork (15) is connected with front rod (10), and front rod (10) is connected with cutter shaft (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910061276XA CN101518841B (en) | 2009-03-26 | 2009-03-26 | Quick-return device of cutter of gear shaper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910061276XA CN101518841B (en) | 2009-03-26 | 2009-03-26 | Quick-return device of cutter of gear shaper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101518841A true CN101518841A (en) | 2009-09-02 |
| CN101518841B CN101518841B (en) | 2010-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910061276XA Expired - Fee Related CN101518841B (en) | 2009-03-26 | 2009-03-26 | Quick-return device of cutter of gear shaper |
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| Country | Link |
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| CN (1) | CN101518841B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102198544A (en) * | 2011-06-22 | 2011-09-28 | 宜昌市致远新技术有限公司 | Hydraulic follow-up tool rest for gear shaping machine |
| CN102528518A (en) * | 2012-02-03 | 2012-07-04 | 宜昌市致远新技术有限公司 | Gear shaping machine main motion control device |
-
2009
- 2009-03-26 CN CN200910061276XA patent/CN101518841B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102198544A (en) * | 2011-06-22 | 2011-09-28 | 宜昌市致远新技术有限公司 | Hydraulic follow-up tool rest for gear shaping machine |
| CN102198544B (en) * | 2011-06-22 | 2012-11-28 | 宜昌市致远新技术有限公司 | Hydraulic follow-up tool rest for gear shaping machine |
| CN102528518A (en) * | 2012-02-03 | 2012-07-04 | 宜昌市致远新技术有限公司 | Gear shaping machine main motion control device |
| CN102528518B (en) * | 2012-02-03 | 2013-10-02 | 宜昌市致远新技术有限公司 | Gear shaping machine main motion control device |
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| Publication number | Publication date |
|---|---|
| CN101518841B (en) | 2010-12-29 |
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Granted publication date: 20101229 Termination date: 20210326 |