CN202114356U - Hydraulic follower knife rest of gear shaping machine - Google Patents
Hydraulic follower knife rest of gear shaping machine Download PDFInfo
- Publication number
- CN202114356U CN202114356U CN2011202118391U CN201120211839U CN202114356U CN 202114356 U CN202114356 U CN 202114356U CN 2011202118391 U CN2011202118391 U CN 2011202118391U CN 201120211839 U CN201120211839 U CN 201120211839U CN 202114356 U CN202114356 U CN 202114356U
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- China
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- oil
- oil pocket
- cutter shaft
- knife rest
- cylinder body
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Abstract
Disclosed is a hydraulic follower knife rest of a gear shaping machine. A knife shaft is mounted in a cylinder body, a first oil cavity and a second oil cavity are formed between the knife shaft and the cylinder body, an oil inlet is arranged on the cylinder body, a valve spool is mounted in the knife shaft, the knife shaft is provided with an oil return opening, a second oil cavity oil flowing opening and a first oil cavity oil flowing opening, and a first controllable closing position and a second controllable closing position are formed between the valve spool and an inner cavity of the knife shaft. The knife shaft can closely follow the valve spool by the aid of the valve spool and an oil circuit arranged precisely, so that the knife shaft and the valve spool can move synchronously. Impact of the hydraulic follower knife rest during processing and operating is avoided, the hydraulic follower knife rest is designed to supply oil in only one direction, reversing of vertical reciprocating motion of the knife shaft, namely reversing of a piston, is controlled by the position of the valve spool and is realized by a differential cylinder consisting of the knife shaft and the cylinder body, and the hydraulic follower knife rest is simple in structure and reliable in movement. Besides, due to the design of the sections of the second oil cavity and the first oil cavity, the characteristic of quick return of a knife during gear shaping cutting processing is realized.
Description
Technical field
The utility model relates to the gear shapping machine field, particularly a kind of gear shapping machine hydraulic follow-up knife rest.
Background technology
The main type of drive of present employed gear shapping machine (traditional gear shapping machine) is toggle or crank tooth bar (snail bar) mechanism, and its principle is the straight reciprocating motion (like right figure) that the motor circular motion is converted into cutter shaft after gear (or belt pulley) slows down.In Fig. 3, because there is harmful radial component Fr all the time in crank mechanism when transmission mechanical energy to cutter shaft makes it do straight reciprocating motion, this radial component has aggravated the fretting wear of cutter shaft and knife rest associated components on the one hand; Because this radial component curve is a sine curve, radial component variation being prone to cause lathe cutter saddle produces and trembles, and the gear shapping machine machining accuracy is had negative effect on the other hand; Radial component and frictional resistance must consume a part of mechanical energy simultaneously, and Here it is, and the not enough reason of all traditional gear shapping machine cutting force belongs to.
Summary of the invention
The utility model technical problem to be solved provides a kind of gear shapping machine hydraulic follow-up knife rest, can replace traditional toggle, has strengthened effective cutting force of cutter shaft, and has anxious function of returning equally.
For solving the problems of the technologies described above, the technical scheme that the utility model adopted is: a kind of gear shapping machine hydraulic follow-up knife rest, and cutter shaft is installed in the cylinder body, and the piston of cutter shaft is separated into first oil pocket and second oil pocket with cylinder body;
Cylinder body is provided with oil-in;
Spool is installed in the cutter shaft, and cutter shaft is provided with oil return opening, the logical hydraulic fluid port of second oil pocket and the logical hydraulic fluid port of first oil pocket;
Form the first controlled sealing position and the second sealing position between the inner chamber of spool and cutter shaft.
The diameter of piston rod that cutter shaft is positioned at first oil pocket is positioned at the diameter of piston rod of second oil pocket greater than cutter shaft.
Described oil return opening is positioned at outside the cylinder body.
The logical hydraulic fluid port of described second oil pocket is positioned at second oil pocket.
The logical hydraulic fluid port of described first oil pocket is positioned at first oil pocket.
The difference of the cross-sectional area of described second oil pocket and first oil pocket is greater than the cross-sectional area of first oil pocket.
The on off operating mode of the described first sealing position and the second sealing position is for can not open simultaneously.
A kind of gear shapping machine hydraulic follow-up knife rest that the utility model provides; Through adopting above-mentioned structure; Thoroughly eliminated the frictional resistance that radially is harmful to component and generation thereof that traditional blade adapter for gear shaper is in operation and produces; To drive energy and all be converted into the machine cut energy, strengthen the effective cutting force of lathe, improve cutting force efficient; Cancel traditional gear shapping machine cutter shaft reversing crank mechanism, eliminated impact and noise that mechanical commutation produces, improve working environment; Change the hydraulic system charge oil pressure; Can conveniently adjust machine cut power; To adapt to part processing such as various materials, specification, this function can be controlled by digital display circuit, for the gear shapping machine processing parts realizes that Self Adaptive Control provides technical support; The motion of having controlled spool can be controlled the motion of cutter shaft, can realize the smart slotting cutting of middle hard gear-face.The spool that is provided with and accurate configuration oil circuit are guaranteed that cutter shaft is closelyed follow with spool and are synchronized with the movement; Avoided the hydraulic follow-up knife rest to impact in processing, generation in service; The hydraulic follow-up tool holder designs is unidirectional fuel feeding; Cutter shaft pumps and commutates is the Position Control of piston switching-over by spool, is realized that by the differential cylinder that cutter shaft and cylinder body are formed mechanism is simple, reliable motion.By the Cross section Design of second oil pocket and first oil pocket, realized the cutter quickreturn characteristics in the gear shaping cut.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further:
Structural representation when Fig. 1 moves upward for the utility model.
Structural representation when Fig. 2 moves downward for the utility model.
Fig. 3 is the structural representation of toggle in the prior art.
The specific embodiment
In Fig. 1, Fig. 2, a kind of gear shapping machine hydraulic follow-up knife rest, cutter shaft 3 is installed in the cylinder body 4, and the piston of cutter shaft 3 is separated into first oil pocket 5 and second oil pocket 7 with cylinder body 4, forms differential hydro cylinder between cutter shaft 3 and the cylinder body 4;
Spool 1 is installed in the cutter shaft 3, and cutter shaft 3 is provided with oil return opening 2, the logical hydraulic fluid port 8 of second oil pocket and the logical hydraulic fluid port 9 of first oil pocket;
Form the controlled 10 and second sealing position 11, the first sealing position between the inner chamber of spool 1 and cutter shaft 3.
The diameter of piston rod that cutter shaft 3 is positioned at first oil pocket 5 is positioned at the diameter of piston rod of second oil pocket 7 greater than cutter shaft 3.Form differential hydro cylinder thus.
Described oil return opening 2 is positioned at outside the cylinder body 4.
The logical hydraulic fluid port 8 of described second oil pocket is positioned at second oil pocket 7.
The logical hydraulic fluid port 9 of described first oil pocket is positioned at first oil pocket 5.
The difference of the cross-sectional area of described second oil pocket 7 and first oil pocket 5 is greater than the cross-sectional area of first oil pocket 5.
The on off operating mode of the 10 and second sealing position 11, the described first sealing position is for can not open simultaneously.
The utility model is provided with spool at the cutter shaft inner chamber, simultaneously cutter shaft 3 is designed to have the piston of differential characteristic, realizes that with unidirectional fuel system cutter shaft moves back and forth.
In use, when spool 1 moved upward, spool 1 was an opening with the first sealing position 10 that cutter shaft 3 forms, and spool 1 is a closed state with the second sealing position 11 that cutter shaft 3 forms.
Hydraulic oil enters in first oil pocket 5 from oil-in 6; Because the second sealing position 11 is a closed state; The 3 upwards operations of hydraulic oil promotion cutter shaft, second oil pocket 7 is communicated with oil return opening 2, and the hydraulic oil in second oil pocket 7 upwards moves with cutter shaft 3 and is discharged to the Hydraulic Station oil sump.As long as it is moving that spool 1 is not upwards stopped transport, spool 1 and cutter shaft 3 relative positions are with constant, and cutter shaft 3 will continue up to move.
When spool 1 stopped, cutter shaft 3 was closed state with continuing to move to spool 1 with the first sealing position 10 that cutter shaft 3 forms, 7 sealings of second oil pocket, and cutter shaft 3 up being obstructed stop immediately.
When spool 1 moves down; Spool 1 is a closed state with the first sealing position 10 that cutter shaft 3 forms; When the second sealing position 11 that spool 1 and cutter shaft 3 form be opening, be communicated with i.e. connection between second oil pocket 7 and first oil pocket 5 between logical hydraulic fluid port 9 of first oil pocket and the logical hydraulic fluid port 8 of second oil pocket; Because cutter shaft 3 is positioned at the diameter of piston rod of first oil pocket 5 is positioned at second oil pocket 7 greater than cutter shaft 3 diameter of piston rod; Be that cutter shaft 3 is designed to differential type as piston, the pressure in second oil pocket 7 is greater than the pressure in first oil pocket 5, and the hydraulic oil that gets into from oil-in 6 enters into through logical hydraulic fluid port 9 of first oil pocket and the logical hydraulic fluid port 8 of second oil pocket that promotion cutter shafts 3 move down in second oil pocket 7; Thereby realize pumping of cutter shaft 3, accomplish the gear shapping machine cutter shaft stroke movement cycle.
In the design of optimizing, the difference of the cross-sectional area of second oil pocket and first oil pocket is greater than the cross-sectional area of first oil pocket.Then cutter shaft 3 speed uplinks are very fast, and thrust is less, and downstream rate is slower, and thrust is bigger, accommodates very much the service requirement of cutter in the gear shaping cut.
Claims (7)
1. gear shapping machine hydraulic follow-up knife rest, it is characterized in that: cutter shaft (3) is installed in the cylinder body (4), and the piston of cutter shaft (3) is separated into first oil pocket (5) and second oil pocket (7) with cylinder body (4);
Cylinder body (4) is provided with oil-in (6);
Spool (1) is installed in the cutter shaft (3), and cutter shaft (3) is provided with oil return opening (2), the logical hydraulic fluid port (8) of second oil pocket and the logical hydraulic fluid port (9) of first oil pocket;
Form the first controlled sealing position (10) and the second sealing position (11) between the inner chamber of spool (1) and cutter shaft (3).
2. a kind of gear shapping machine hydraulic follow-up knife rest according to claim 1 is characterized in that: the diameter of piston rod that cutter shaft (3) is positioned at first oil pocket (5) is positioned at the diameter of piston rod of second oil pocket (7) greater than cutter shaft (3).
3. a kind of gear shapping machine hydraulic follow-up knife rest according to claim 1, it is characterized in that: described oil return opening (2) is positioned at outside the cylinder body (4).
4. a kind of gear shapping machine hydraulic follow-up knife rest according to claim 1 is characterized in that: the logical hydraulic fluid port (8) of described second oil pocket is positioned at second oil pocket (7).
5. a kind of gear shapping machine hydraulic follow-up knife rest according to claim 1 is characterized in that: the logical hydraulic fluid port (9) of described first oil pocket is positioned at first oil pocket (5).
6. a kind of gear shapping machine hydraulic follow-up knife rest according to claim 1 is characterized in that: the difference of the cross-sectional area of described second oil pocket (7) and first oil pocket (5) is greater than the cross-sectional area of first oil pocket (5).
7. a kind of gear shapping machine hydraulic follow-up knife rest according to claim 1 is characterized in that: the on off operating mode of the described first sealing position (10) and the second sealing position (11) is for can not open simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202118391U CN202114356U (en) | 2011-06-22 | 2011-06-22 | Hydraulic follower knife rest of gear shaping machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202118391U CN202114356U (en) | 2011-06-22 | 2011-06-22 | Hydraulic follower knife rest of gear shaping machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202114356U true CN202114356U (en) | 2012-01-18 |
Family
ID=45455454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202118391U Expired - Fee Related CN202114356U (en) | 2011-06-22 | 2011-06-22 | Hydraulic follower knife rest of gear shaping machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202114356U (en) |
Cited By (1)
| 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 |
-
2011
- 2011-06-22 CN CN2011202118391U patent/CN202114356U/en not_active Expired - Fee Related
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 |
| 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 |
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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: 20120118 Termination date: 20120622 |