CN202411930U - Machine tool and hydraulic circuit for controlling accessory head and C shaft - Google Patents
Machine tool and hydraulic circuit for controlling accessory head and C shaft Download PDFInfo
- Publication number
- CN202411930U CN202411930U CN2011205026404U CN201120502640U CN202411930U CN 202411930 U CN202411930 U CN 202411930U CN 2011205026404 U CN2011205026404 U CN 2011205026404U CN 201120502640 U CN201120502640 U CN 201120502640U CN 202411930 U CN202411930 U CN 202411930U
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- oil
- valve
- interface
- hydraulic circuit
- hydraulic cylinder
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Abstract
The utility model provides a machine tool and a hydraulic circuit for controlling an accessory head and a C shaft. The hydraulic circuit comprises a first reversing valve, a second reversing valve and a hydraulic cylinder, wherein the first reversing valve comprises a first oil inlet, a first oil return hole and first working oil holes; the second reversing valve comprises a second oil inlet, a second oil return hole and second working oil holes; the hydraulic cylinder can be positioned in a first position, a second position and a third position, at least three of the first working oil holes and the second working holes are connected with the hydraulic cylinder, and the hydraulic cylinder pushes and pulls the accessory head and the C shaft; when the hydraulic cylinder is positioned in the first position, the accessory head and the C shaft are fastened; when the hydraulic cylinder is positioned in the second position, the accessory head is fastened, and the C shaft is released; and when the hydraulic cylinder is positioned in the third position, the accessory head is released, and the C shaft is released. In the utility model, one group of hydraulic cylinder is used for pushing and pulling the accessory head and the C shaft, thus the hydraulic circuit has the advantages of smaller occupation space, compact structure, easiness in control, high reliability and the like.
Description
Technical field
The utility model relates generally to machine tool field, specifically, relates to a kind of hydraulic circuit of controlling annex head and C axle, and the lathe that comprises this hydraulic circuit.
Background technology
The annex head of lathe is arranged on the main shaft, can change the cutting direction of cutter through the annex head; The C axle is the revolute that moves in a circle to (perpendicular to the ground direction) along Z.In the process of machine tooling workpiece, often need carry out degree of tightness, so that adjustment processing orientation to annex head and C axle.
In the prior art, the annex head of lathe is controlled by different hydraulic cylinders with the C axle, realizes that respectively the tension of annex head and C axle is loosened, and this mode has taken many spaces.And generally in process, annex head and C axle have two independently actions, and are separated control.During actual job, the annex head needs one group of 4 hydraulic cylinders control, and the C axle then needs 1 hydraulic cylinder control, therefore needs each hydraulic cylinder work compound, and control is inconvenience extremely.
The utility model content
The utility model aims to provide a kind of hydraulic circuit of controlling annex head and C axle, and this hydraulic circuit can conserve space, and improves controlled.
The hydraulic circuit of the utility model control annex head and C axle comprises:
First reversal valve, said first reversal valve comprises first oil-in, first oil return opening and first actuator port, the said first oil-in connected system oil-in, said first oil return opening connects fuel tank;
Second reversal valve, said second reversal valve comprises second oil-in, second oil return opening and second actuator port, the said second oil-in connected system oil-in, said second oil return opening connects fuel tank;
Can be positioned the hydraulic cylinder of primary importance, the second place and the 3rd position; At least three in said first actuator port and second actuator port are connected said hydraulic cylinder; Said annex head of said hydraulic cylinder push-and-pull and C axle, in said primary importance, annex head and C axle are fastening; In the said second place, the annex head is fastening, the C axle loosens; In said the 3rd position, the annex head loosens, the C axle loosens.
Further, said hydraulic cylinder comprises:
Cylinder body and piston rod;
Be fixed in the first piston on the piston rod;
Can be sleeved on second piston on the piston rod up or down, said cylinder body is provided with the step surface spacing to second piston;
Be arranged at first interface, second interface and the 3rd interface of cylinder body upper end, middle-end and lower end respectively.
Further, said first reversal valve comprises two first actuator ports, and said two first actuator ports connect first interface and second interface respectively.
Further, said second reversal valve comprises two second actuator ports, and one in said two second actuator ports connects the 3rd interface, and another is ended.
Further, said first reversal valve and second reversal valve are two-position four-way valve.
Further, also comprise three travel switches that are used to measure hydraulic cylinder travel, hydraulic cylinder contacts each travel switch respectively when first, second, third position.
Further, also comprise:
First pressure-reducing valve of the two ends connected system oil-in and first oil-in, said first pressure-reducing valve is used to reduce to get into the hydraulic fluid pressure of first reversal valve;
And/or
Second pressure-reducing valve of the two ends connected system oil-in and second oil-in, said second pressure-reducing valve is used to reduce to get into the hydraulic fluid pressure of second reversal valve.
Further, also comprise:
First check valve of the two ends connected system oil-in and first oil-in, said first check valve stop hydraulic oil to flow to system's oil-in from first reversal valve;
And/or
Second check valve of the two ends connected system oil-in and second oil-in, said second check valve stop hydraulic oil to flow to system's oil-in from second reversal valve.
Further, also comprise:
Measure first Pressure gauge through the post-decompression hydraulic fluid pressure of first pressure-reducing valve;
And/or
Measure second Pressure gauge through the post-decompression hydraulic fluid pressure of second pressure-reducing valve.
Further, also comprise:
First one-way throttle valve, said first one-way throttle valve connects first actuator port and first interface, handles through throttling during the said first interface oil-feed;
And/or
Second one-way throttle valve, said second one-way throttle valve connects second actuator port and the 3rd interface, handles through throttling when said the 3rd interface is fuel-displaced.
Further, also comprise:
Double throttle check valve, an end of said Double throttle check valve connects first actuator port, and the other end connects first interface and second interface, handles through throttling when fuel-displaced and second interface of said first interface is fuel-displaced.
Another aspect of the utility model also provides a kind of lathe, and this lathe comprises the hydraulic circuit of aforesaid control annex head and C axle.
The utility model comes push-pull attachments head and C axle through the hydraulic cylinder in location, three positions, thereby realizes their degree of tightness.Compared with prior art, the utility model takes up room littler, and more compact structure is for the structural design of lathe provides greater flexibility; And the utility model need not rely on a plurality of hydraulic cylinder synergies as prior art, has improved operating characteristics.In addition, the utility model also has the existing structure change little, practices thrift cost, the reliability advantages of higher.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the control annex head of the utility model one embodiment and the hydraulic circuit schematic diagram of C axle;
Fig. 2 is the sketch map of the piston rod of the utility model in the second place;
Fig. 3 is the sketch map of the piston rod of the utility model in the 3rd position.
The specific embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Shown in Figure 1 is the control annex head of the utility model one embodiment and the hydraulic circuit schematic diagram of C axle, and this hydraulic circuit is used to control the degree of tightness of the annex head and the C axle of lathe, so that add adjustment processing orientation in man-hour at workpiece.As can be seen from Figure 1; The hydraulic circuit of the utility model control annex head and C axle comprises first reversal valve 1, second reversal valve 2 and hydraulic cylinder 3 at least; Through the control of first reversal valve 1 and 2 pairs of hydraulic cylinders 3 of second reversal valve, this hydraulic cylinder 3 can be positioned three positions.
First reversal valve 1 comprises first oil-in, first oil return opening and first actuator port, the first oil-in connected system oil-in, and first oil return opening connects fuel tank.First actuator port can comprise one or more, and the utility model is not limited to this.Preferably, first reversal valve 1 is a two-position four-way valve shown in Figure 1.Should be understood that, when it is other valve arrangements such as three-position four-way valve, can realize the technique effect of the utility model equally.
Second reversal valve 2 comprises second oil-in, second oil return opening and second actuator port, the second oil-in connected system oil-in, and second oil return opening connects fuel tank.Likewise, second actuator port also can comprise one or more, and the utility model is not limited to this.Preferably, first reversal valve 1 is a two-position four-way valve shown in Figure 1.Should be understood that, when it is other valve arrangements such as three-position four-way valve or two position three-way valve, can realize the technique effect of the utility model equally.
At least three in aforesaid first actuator port of the utility model and second actuator port are connected hydraulic cylinder 3; Through the turnover oil of these at least three actuator ports, can realize the location of hydraulic cylinder 3 at primary importance, three diverse locations of the second place and the 3rd position.Carry out hingedly between the annex head of hydraulic cylinder 3 and lathe and the C axle, its articulated manner can confirm that it belongs to those skilled in the art's conventional design according to the concrete structure of lathe, because the core of the utility model is at this, this paper repeats no more at this.
Through hydraulic cylinder 3 push-pull attachments heads and C axle, in primary importance, annex head and C axle are fastening; In the second place, the annex head is fastening, the C axle loosens; In the 3rd position, the annex head loosens, the C axle loosens.Primary importance can be corresponding to hydraulic cylinder 3 upper, the second place can be corresponding to the meta of hydraulic cylinder 3, what the 3rd position can be corresponding to hydraulic cylinder 3 is the next.Each fastening means is preferably tension.
Those skilled in the art can adopt three hydraulic cylinders 3 of multiple structure, and it has a plurality of interfaces, are connected with second actuator port with first actuator port respectively, and then realize the technique effect of the utility model.Should be understood that the utility model can comprise one or more three hydraulic cylinders 3.When being a plurality of, each hydraulic cylinder 3 is synchronized with the movement in the quantity of hydraulic cylinder 3.The quantity of preferred hydraulic cylinder 3 is 4.
As an embodiment, shown in Fig. 1-3, the hydraulic cylinder 3 of the utility model can comprise cylinder body 30, piston rod 31, first piston 3a, the second piston 3b.Each piston and piston rod 31 are arranged in the cylinder body 30, and wherein first piston 3a is fixed on the piston rod 31, and the second piston 3b can be sleeved on the piston rod 31 up or down, and cylinder body 30 is provided with the step surface 32 spacing to the second piston 3b.In addition, be arranged at first interface, second interface and the 3rd interface respectively in upper end, middle-end and the lower end of cylinder body 30.
Particularly, first reversal valve 1 of the utility model can comprise two first actuator ports as shown in Figure 1, and two first actuator ports connect first interface and second interface respectively; Second reversal valve 2 can comprise two second actuator ports shown in Figure 1, and one in two second actuator ports connects the 3rd interface, and another is ended.
In the state shown in Figure 3 hydraulic cylinder 3 be in the next, this moment the first interface oil-feed, second interface is fuel-displaced, the 3rd interface is fuel-displaced.Correspondingly, first piston 3a moves down, and the second piston 3b is positioned at the lower end of hydraulic cylinder 3.When this state, first reversal valve 1 is positioned at right position, and second reversal valve 2 is positioned at position, a left side, and the annex head loosens, the C axle loosens.
Further, the utility model also comprises three travel switches 4 that are used to measure piston rod 31 strokes, and hydraulic cylinder 3 contacts each travel switch 4 respectively when first, second, third position.Such as, when the second place (meta), after hydraulic cylinder 3 (piston rod 31 of hydraulic cylinder 3) was run into travel switch 4, travel switch 4 changed on off state, showed that this moment, piston rod 31 moved into place, and the C axle is in relaxation state.
Preferably, the utility model also provides the pressure protect of system.Correspondingly, the hydraulic circuit of the utility model also comprises first pressure-reducing valve 51 and/or second pressure-reducing valve 52.First pressure-reducing valve, the 51 two ends connected system oil-in and first oil-ins wherein, first pressure-reducing valve 51 is used to reduce to get into the hydraulic fluid pressure of first reversal valve 1; Second pressure-reducing valve, the 52 two ends connected system oil-in and second oil-ins, second pressure-reducing valve 52 is used to reduce to get into the hydraulic fluid pressure of second reversal valve 2.Preferably through after first pressure-reducing valve 51 and 52 decompressions of second pressure-reducing valve, hydraulic fluid pressure is 5Mpa.
In addition; In order to prevent fluid string chamber; The utility model can also comprise first check valve 61 and/or second check valve 62, first check valve, the 61 two ends connected system oil-in and first oil-ins wherein, and first check valve 61 stops hydraulic oil to flow to system's oil-in from first reversal valve 1; Second check valve, the 62 two ends connected system oil-in and second oil-ins, second check valve 62 stops hydraulic oil to flow to system's oil-in from second reversal valve 2.
As another embodiment, the utility model also comprises first Pressure gauge 71 and/or second Pressure gauge 72.Wherein, first Pressure gauge 71 is measured through first pressure-reducing valve, 51 post-decompression hydraulic fluid pressures, and second Pressure gauge 72 is measured through second pressure-reducing valve, 52 post-decompression hydraulic fluid pressures.First Pressure gauge 71 and second Pressure gauge 72 are used to show pressure, and it can be connected to the oil circuit between each pressure-reducing valve shown in Figure 1 and the check valve, also can be connected in other and be convenient to measure on the oil circuit of decompression back pressure.
Simultaneously, for the movement velocity of regulating piston, the utility model can also comprise first one-way throttle valve 81 and/or second one-way throttle valve 82.Wherein first one-way throttle valve 81 connects first actuator port and first interface, handles through throttling during the first interface oil-feed; Second one-way throttle valve 82 connects second actuator port and the 3rd interface, handles through throttling when the 3rd interface is fuel-displaced.
This first one-way throttle valve 81 can be regulated the movement velocity of first piston 3a, the movement velocity that second one-way throttle valve 82 can be regulated the second piston 3b.When meta state shown in Figure 2, through regulating the knob of first one-way throttle valve 81, make the second piston 3b arrive first middle step surface 32, thereby make the motion of annex head more steady than first piston 3a.In addition, each one-way throttle valve can form back pressure at each chamber, is shifted because of influenced by gravity or external force to avoid each piston.
Further, the utility model can also comprise Double throttle check valve 9, and an end of this Double throttle check valve 9 connects first actuator port, and the other end connects first interface and second interface, handles through throttling when first interface and second interface are fuel-displaced.This Double throttle check valve 9 can be regulated the movement velocity of the first piston 3a and the second piston 3b.
Except the hydraulic circuit of aforementioned control annex head and C axle, the utility model also provides a kind of lathe that comprises this hydraulic circuit.This lathe can be like lathes such as boring-mill work centers, gantry, as long as this lathe need carry out the degree of tightness operation to annex head and C axle, promptly can be suitable for the technical scheme of the utility model, and the utility model is not limited to this.Other structure of this lathe is with reference to prior art, and this paper repeats no more at this.
In sum, the utility model comes push-pull attachments head and C axle through the hydraulic cylinder 3 in location, three positions, thereby realizes their degree of tightness.Compared with prior art, the utlity model has following advantage:
1) take up room little
The utility model only can realize promptly that with one group of synchronous three hydraulic cylinder 3 one group of two hydraulic cylinder adds the degree of tightness function that two hydraulic cylinders could be accomplished in the prior art.Comparatively speaking, the utility model takes up room littler, and more compact structure is for the structural design of lathe provides greater flexibility.
2) be easy to control
Three hydraulic cylinders 3 of the utility model are when primary importance, the second place and the 3rd position; Corresponding different respectively annex head and C axle degree of tightness state; Need not rely on one group of two hydraulic cylinder and two hydraulic cylinders synergy, improve control performance as prior art.
In addition, the utility model also has the existing structure change little, practices thrift cost, the reliability advantages of higher.
Therefore, the beneficial effect of the utility model is conspicuous.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (12)
1. a hydraulic circuit of controlling annex head and C axle is characterized in that, comprising:
First reversal valve (1), said first reversal valve (1) comprises first oil-in, first oil return opening and first actuator port, the said first oil-in connected system oil-in, said first oil return opening connects fuel tank;
Second reversal valve (2), said second reversal valve (2) comprises second oil-in, second oil return opening and second actuator port, the said second oil-in connected system oil-in, said second oil return opening connects fuel tank;
Can be positioned the hydraulic cylinder (3) of primary importance, the second place and the 3rd position; At least three in said first actuator port and second actuator port are connected said hydraulic cylinder (3); Said annex head of said hydraulic cylinder (3) push-and-pull and C axle, in said primary importance, annex head and C axle are fastening; In the said second place, the annex head is fastening, the C axle loosens; In said the 3rd position, the annex head loosens, the C axle loosens.
2. hydraulic circuit according to claim 1 is characterized in that, said hydraulic cylinder (3) comprising:
Cylinder body (30) and piston rod (31);
Be fixed in the first piston (3a) on the piston rod (31);
Can be sleeved on second piston (3b) on the piston rod (31) up or down, said cylinder body (30) is provided with the step surface (32) spacing to second piston (3b);
Be arranged at first interface, second interface and the 3rd interface of cylinder body (30) upper end, middle-end and lower end respectively.
3. hydraulic circuit according to claim 2 is characterized in that, said first reversal valve (1) comprises two first actuator ports, and said two first actuator ports connect first interface and second interface respectively.
4. hydraulic circuit according to claim 3 is characterized in that, said second reversal valve (2) comprises two second actuator ports, and one in said two second actuator ports connects the 3rd interface, and another is ended.
5. according to each described hydraulic circuit of claim 1-4, it is characterized in that said first reversal valve (1) and second reversal valve (2) are two-position four-way valve.
6. according to each described hydraulic circuit of claim 1-4, it is characterized in that also comprise three travel switches (4) that are used to measure hydraulic cylinder travel, hydraulic cylinder (3) contacts each travel switch (4) respectively when first, second, third position.
7. according to each described hydraulic circuit of claim 1-4, it is characterized in that, also comprise:
First pressure-reducing valve (51) of the two ends connected system oil-in and first oil-in, said first pressure-reducing valve (51) is used to reduce to get into the hydraulic fluid pressure of first reversal valve (1);
And/or
Second pressure-reducing valve (52) of the two ends connected system oil-in and second oil-in, said second pressure-reducing valve (52) is used to reduce to get into the hydraulic fluid pressure of second reversal valve (2).
8. according to each described hydraulic circuit of claim 1-4, it is characterized in that, also comprise:
First check valve (61) of the two ends connected system oil-in and first oil-in, said first check valve (61) stop hydraulic oil to flow to system's oil-in from first reversal valve (1);
And/or
Second check valve (62) of the two ends connected system oil-in and second oil-in, said second check valve (62) stop hydraulic oil to flow to system's oil-in from second reversal valve (2).
9. according to each described hydraulic circuit of claim 1-4, it is characterized in that, also comprise:
Measure first Pressure gauge (71) through the post-decompression hydraulic fluid pressure of first pressure-reducing valve (51);
And/or
Measure second Pressure gauge (72) through the post-decompression hydraulic fluid pressure of second pressure-reducing valve (52).
10. according to each described hydraulic circuit of claim 2 to 4, it is characterized in that, also comprise:
First one-way throttle valve (81), said first one-way throttle valve (81) connect first actuator port and first interface, handle through throttling during the said first interface oil-feed;
And/or
Second one-way throttle valve (82), said second one-way throttle valve (82) connects second actuator port and the 3rd interface, handles through throttling when said the 3rd interface is fuel-displaced.
11. according to each described hydraulic circuit of claim 2 to 4, it is characterized in that, also comprise:
Double throttle check valve (9), an end of said Double throttle check valve (9) connects first actuator port, and the other end connects first interface and second interface, handles through throttling when said first interface and second interface are fuel-displaced.
12. a lathe is characterized in that, said lathe comprises the hydraulic circuit of each described control annex head of claim 1-11 and C axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205026404U CN202411930U (en) | 2011-12-06 | 2011-12-06 | Machine tool and hydraulic circuit for controlling accessory head and C shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205026404U CN202411930U (en) | 2011-12-06 | 2011-12-06 | Machine tool and hydraulic circuit for controlling accessory head and C shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202411930U true CN202411930U (en) | 2012-09-05 |
Family
ID=46736724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205026404U Withdrawn - After Issue CN202411930U (en) | 2011-12-06 | 2011-12-06 | Machine tool and hydraulic circuit for controlling accessory head and C shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202411930U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554695A (en) * | 2011-12-06 | 2012-07-11 | 上海三一精机有限公司 | Hydraulic loop used for controlling accessory head and C shaft and machine tool |
-
2011
- 2011-12-06 CN CN2011205026404U patent/CN202411930U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554695A (en) * | 2011-12-06 | 2012-07-11 | 上海三一精机有限公司 | Hydraulic loop used for controlling accessory head and C shaft and machine tool |
| CN102554695B (en) * | 2011-12-06 | 2014-08-27 | 上海三一精机有限公司 | Hydraulic loop used for controlling accessory head and C shaft and machine tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120905 Effective date of abandoning: 20140827 |
|
| RGAV | Abandon patent right to avoid regrant |