CN206329569U - A kind of new digital bending Oil cylinder - Google Patents
A kind of new digital bending Oil cylinder Download PDFInfo
- Publication number
- CN206329569U CN206329569U CN201621150312.1U CN201621150312U CN206329569U CN 206329569 U CN206329569 U CN 206329569U CN 201621150312 U CN201621150312 U CN 201621150312U CN 206329569 U CN206329569 U CN 206329569U
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- valve
- oil cylinder
- screw
- ball
- cylinder
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- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of new digital bending Oil cylinder, it includes oil circuit part, oil cylinder, drive disk assembly；Oil circuit part includes guiding valve, and guiding valve includes guiding valve valve body, valve core of the spool valve, and oil cylinder includes cylinder block, cylinder piston rod, fairlead, and described drive disk assembly includes ball-screw, ball-screw nut, shaft coupling, adpting flange, servomotor, connecting rod；Servomotor is fixedly connected on guiding valve valve body by flange, and guiding valve valve body is fixed on cylinder block right-hand member, and fairlead is fixedly connected on cylinder block left end；The main shaft of servomotor connects valve core of the spool valve by shaft coupling；Connecting rod one end is connected by screw thread with valve element, and the other end is connected by spline with ball-screw；One end of ball-screw is located in the hole of piston rod, and middle part and the ball-screw nut screw thread being fixed on above piston rod coordinate, and the other end is connected with connecting rod.The utility model is simple in construction, reliable, precision is higher.
Description
Technical field
The utility model is related to machine tool field, more particularly to digital bender oil cylinder.
Background technology
Current bending Oil cylinder primary structure is processed into hollow shape, the built-in regulation silk of hollow piston rod for piston rod
Bar, screw mandrel one end is trapezoidal thread pair, and the other end constitutes worm couple to be connected through a screw thread worm gear, and worm screw connects with motor
Connect, the stroke of bending Oil cylinder is adjusted by the secondary cooperation of worm couple and trapezoidal thread.There is the oil cylinder structure to answer
Miscellaneous, piston rod hardly possible processing, quality of fit is difficult to ensure the shortcoming of card.
Utility model content
Problem to be solved in the utility model is to provide a kind of digital bending Oil cylinder, and it is simple in construction, by adopting
Rotated with servomotor band movable pulley, linear motion is changed into by fixing nut, carry out the opening and closing of spool control valve valve element, and then control
The opening and closing of oil cylinder oil inlet and outlet is so as to carry out the operation of control cylinder.Meanwhile, the utility model is reliable, and precision is higher.
A kind of new digital bending Oil cylinder of the utility model, it includes oil circuit part, oil cylinder, drive disk assembly；Oil
Circuit unit is communicated with oil cylinder, and drive disk assembly is arranged in oil cylinder and oil circuit part.
Further, described oil circuit part includes guiding valve, and guiding valve includes guiding valve valve body, valve core of the spool valve, and oil cylinder includes oil
Cylinder cylinder body, cylinder piston rod, fairlead, described drive disk assembly include ball-screw, ball-screw nut, shaft coupling, connection
Flange, servomotor, connecting rod；Servomotor is fixedly connected on guiding valve valve body by flange, and guiding valve valve body is fixed on oil cylinder
Cylinder body right-hand member, fairlead is fixedly connected on cylinder block left end；The main shaft of servomotor connects valve core of the spool valve by shaft coupling；Even
Extension bar one end is connected by screw thread with valve element, and the other end is connected by spline with ball-screw；One end of ball-screw, which is located at, lives
In the hole of stopper rod, middle part and the ball-screw nut screw thread being fixed on above piston rod coordinate, and the other end is connected with connecting rod.
Further, digital bending Oil cylinder also includes sealing shroud；Sealing shroud is enclosed within connecting rod, and solid by screw
It is scheduled on guiding valve valve body, and is pressed on the end face of connecting rod thread segment.
Further, digital bending Oil cylinder also includes small bearing, bearing compact heap；Leading screw is connected with connecting rod 18
Position is provided with bearing, and bearing compact heap is arranged in the hole of cylinder block, and is pressed on the end face of small bearing.
Further, digital bending Oil cylinder also includes big bearing, bearing plate；The position that connecting rod is connected with leading screw
Big bearing is provided with, bearing plate is arranged in the hole of cylinder block, and be pressed on the end face of big bearing.
Further, digital bending Oil cylinder also includes rotary encoder, and rotary encoder is fixed on guiding valve valve body,
Measure the corner of connecting shaft.
Further, oil circuit part also includes replenishing valve, oil pipe flange；Replenishing valve is arranged in cylinder block, its left and right
The hole at two ends is respectively communicated with the inner chamber of cylinder block, guiding valve valve body, its upper end hole and the oil pipe flange being fixed on cylinder block
Connection.
The digital bending Oil cylinder of the utility model rotates by using servomotor band movable pulley, is become by fixing nut
For linear motion, carry out the opening and closing of spool control valve valve element, and then the opening and closing of control cylinder oil inlet and outlet is so as to carrying out the fortune of control cylinder
OK.
The advantage that the utility model compares with common bending machine oil cylinder is：(1) because motor has what is rotated forward and invert
Function, so that the characteristics of guiding valve has reversal valve, so as to instead of the reversal valve in the middle of bender hydraulic system；And due to oil
It is of different sizes that mouth is opened and closed, so as to the oil inlet quantity of control cylinder, so that the flow speed control valve in the middle of bender system is instead of, from
And make simple system reliable；(2) compared with magnetic valve, because the oil cylinder is digital model, it is not easy to disturbed by the external world,
It is easily interfered by outside and magnetic valve is analog signal；(3) oil cylinder due to precision depend on screw mandrel precision, therefore,
Ratio of precision common bending machine high precision.
Brief description of the drawings
Fig. 1 is the structural representation one of the utility model oil cylinder (during halted state)；
Fig. 2 is the structural representation two of the utility model oil cylinder (when piston rod stretches out state)；
Fig. 3 is the structural representation three of the utility model oil cylinder (during piston rod retracted state).
Embodiment
The utility model is described in more detail with reference to the accompanying drawings and detailed description.
Embodiment 1
A kind of new digital bending Oil cylinder of the utility model, it includes oil circuit part, oil cylinder, drive disk assembly；Oil
Circuit unit is communicated with oil cylinder, and drive disk assembly is arranged in oil cylinder and oil circuit part.
Embodiment 2
Oil circuit part described in the digital bending Oil cylinder of the utility model includes guiding valve, and guiding valve includes guiding valve valve body
15th, valve core of the spool valve 11, oil cylinder includes cylinder block 4, cylinder piston rod 2, fairlead 1, and described drive disk assembly includes ball wire
Thick stick 3, ball-screw nut 5, shaft coupling 12, adpting flange 13, servomotor 14, connecting rod 18；Servomotor 14 passes through flange
13 are fixedly connected on guiding valve valve body 15, and guiding valve valve body 15 is fixed on the right-hand member of cylinder block 4, and fairlead 1 is fixedly connected on oil cylinder
The left end of cylinder body 4；The main shaft of servomotor 14 connects valve core of the spool valve 11 by shaft coupling 12；The one end of connecting rod 18 passes through screw thread and valve
Core 11 is connected, and the other end is connected by spline with ball-screw 3；One end of ball-screw 3 is located in the hole of piston rod 2, middle part
With the screw thread of ball-screw nut 5 cooperation being fixed on above piston rod 2, the other end is connected with connecting rod 18.
Embodiment 3
The digital bending Oil cylinder of the utility model also includes sealing shroud 10；Sealing shroud 10 is enclosed within connecting rod 18, and is led to
Cross screw to be fixed on guiding valve valve body 15, and be pressed on the end face of the thread segment of connecting rod 18.
The effect of sealing shroud 10 is：On the end face that the thread segment of connecting rod 18 is pressed on due to it, so that connecting rod 18 does not have
There is the space of axial movement, therefore it can only be rotated, that is to say, that valve core of the spool valve drives it to rotate by screw thread.
Embodiment 4
The digital bending Oil cylinder of the utility model also includes small bearing 7-1, bearing compact heap 6；Ball-screw 3 is with being connected
The position that bar 18 is connected is provided with small bearing 7-1, and bearing compact heap 6 is arranged in the hole of cylinder block 4, and is pressed on small bearing
On 7-1 end face.
Small bearing 7-1 plays support and protective effect to leading screw 3, and what bearing compact heap 6 ensure that small bearing 7-1 positioning can
By property.
Embodiment 5
The digital bending Oil cylinder of the utility model also includes big bearing 7-2, bearing plate 8；Connecting rod 18 connects with leading screw 3
The position connect is provided with big bearing 7-2, and bearing plate 8 is arranged in the hole of cylinder block 4, and is pressed on big bearing 7-2 end
On face.
Big bearing 7-2 plays support and protective effect to connecting rod 18, and bearing plate 8 ensure that big bearing 7-2 positioning
Reliability.
Embodiment 6
The digital bending Oil cylinder of the utility model also includes rotary encoder 9, and rotary encoder 9 is fixed on guiding valve valve body
On 15, the corner of connecting shaft 18 is measured.
The utility model is furnished with rotary encoder in connecting shaft exterior, to detect the anglec of rotation of ball screw and feed back to
PLC, and system is modified, it is further ensured that the stability and reliability of oil cylinder operation.
Embodiment 7
The oil circuit part of the digital bending Oil cylinder of the utility model also includes replenishing valve 16, oil pipe flange 17；Replenishing valve
16 are arranged in cylinder block 4, and the hole of its left and right ends is respectively communicated with the inner chamber of cylinder block 4, guiding valve valve body 15, its upper end hole
Connected with the oil pipe flange 17 being fixed on cylinder block 4.
The characteristics of due to bending Oil cylinder, at the fast speed, it is necessary to directly from fuel tank oil-feed, when work is entered, only pass through during row
Oil inlet pipe oil-feed.Therefore the utility model adds frequent opening type liquid filling valve 16, at the fast speed during row, guiding valve on cylinder block 4
11 connection oil inlet and outlets of valve element, now, the oil of fuel tank reaches replenishing valve 16 by oil pipe flange 17, enters from the hole of its left end
Into oil cylinder rodless cavity；When work is entered, so that valve core of the spool valve 11 opens the control port of frequent opening type liquid filling valve 16, so that often
Open type replenishing valve 16 closes topping up, so that the oil cylinder speed of service is reduced.
The operation principle of the digital bending Oil cylinder of the utility model：When servomotor 14 be connected to PLC to pulse signal
When turning clockwise, valve core of the spool valve 11 is driven to rotate, because the moment hydraulic fluid port closes (as shown in Figure 1), oil cylinder is not run, screw mandrel
3 do not rotate, and are rotated against so that the screw thread between valve core of the spool valve 11 and connecting rod 18 is produced, due to the effect of sealing shroud 10,
It is linear motion to make convert rotational motion, therefore valve core of the spool valve 11 is moved to the left, and makes the entering of guiding valve, oil return opening (P, T) is opened, sliding
The oil inlet of valve is connected with oil cylinder rodless cavity, and oil cylinder rodless cavity oil-feed, cylinder piston rod 2 stretches out (as shown in Figure 2), drives screw mandrel
3 rotate counterclockwises, because connecting rod 18 can not be axially moved, so that producing straight line between connecting rod 18 and valve core of the spool valve 11
Motion, so that the valve element of guiding valve 11 is moved to right, so as to cover in guiding valve into and out of the opening (as shown in Figure 1) between hydraulic fluid port.And
When 14 counterclockwise rotates of servomotor, as the same (now only the oil inlet of guiding valve is connected with cylinder rod chamber, such as Fig. 3
It is shown).Therefore, the utility model realizes the operation of oil cylinder by the opening and closing of spool control valve valve element hydraulic fluid port.
Simply, the utility model is, by the screw thread pair between valve core of the spool valve 11 and connecting rod 18, to make valve core of the spool valve
11 produce linear motion, to control oil inlet and outlet (P, T) unlatching；After hydraulic fluid port is opened, the linear motion of piston rod 2 passes through
Screw thread pair between screw mandrel 3 and feed screw nut 5, makes the transform linear motion of piston rod 2 into the rotary motion of screw mandrel 3, then pass through
Spline connection between screw mandrel 3 and valve core of the spool valve 11, makes motion pass to valve core of the spool valve 11, then connect by guiding valve slide core 11 and 18
Screw thread pair between extension bar, makes valve core of the spool valve produce linear motion, to control the reset of oil inlet and outlet.
The advantage that the utility model compares with common bending machine oil cylinder is：(1) because motor has what is rotated forward and invert
Function, so that the characteristics of guiding valve has reversal valve, so as to instead of the reversal valve in the middle of bender hydraulic system；And due to oil
It is of different sizes that mouth is opened and closed, so as to the oil inlet quantity of control cylinder, so that the flow speed control valve in the middle of bender system is instead of, from
And make simple system reliable；(2) compared with magnetic valve, because the oil cylinder is digital model, it is not easy to disturbed by the external world,
It is easily interfered by outside and magnetic valve is analog signal；(3) oil cylinder due to precision depend on screw mandrel precision, therefore,
Ratio of precision common bending machine high precision.
Claims (7)
1. a kind of new digital bending Oil cylinder, it is characterized in that：It includes oil circuit part, oil cylinder, drive disk assembly；Oil circuit portion
Part is communicated with oil cylinder, and drive disk assembly is arranged in oil cylinder and oil circuit part.
2. digital bending Oil cylinder according to claim 1, it is characterized in that：Described oil circuit part includes guiding valve, sliding
Valve includes guiding valve valve body (15), valve core of the spool valve (11), and oil cylinder includes cylinder block (4), cylinder piston rod (2), fairlead (1),
Described drive disk assembly includes ball-screw (3), ball-screw nut (5), shaft coupling (12), adpting flange (13), servo electricity
Machine (14), connecting rod (18)；Servomotor (14) is fixedly connected on guiding valve valve body (15) by flange (13), guiding valve valve body
(15) cylinder block (4) right-hand member is fixed on, fairlead (1) is fixedly connected on cylinder block (4) left end；The master of servomotor (14)
Axle connects valve core of the spool valve (11) by shaft coupling 12；Connecting rod (18) one end is connected by screw thread with valve element (11), and the other end leads to
Spline is crossed to be connected with ball-screw (3)；One end of ball-screw (3) is located in the hole of piston rod (2), and middle part is with being fixed on piston
Ball-screw nut (5) screw thread of bar (2) above coordinates, and the other end is connected with connecting rod (18).
3. digital bending Oil cylinder according to claim 2, it is characterized in that：Digital bending Oil cylinder also includes sealing
Cover (10)；Sealing shroud (10) is enclosed within connecting rod (18), and is fixed by screws on guiding valve valve body (15), and is pressed on connection
On the end face of bar (18) thread segment.
4. the digital bending Oil cylinder according to Claims 2 or 3, it is characterized in that：Digital bending Oil cylinder also includes
Small bearing (7-1), bearing compact heap (6)；Ball-screw (3) is provided with bearing (7-1), axle with the position that connecting rod (18) is connected
Hold compact heap (6) to be arranged in the hole of cylinder block (4), and be pressed on small bearing (7-1) end face.
5. digital bending Oil cylinder according to claim 4, it is characterized in that：Digital bending Oil cylinder also includes big axle
Hold (7-2), bearing plate (8)；Connecting rod (18) is provided with big bearing (7-2), bearing pressure with the position that ball-screw (3) is connected
Plate (8) is arranged in the hole of cylinder block (4), and is pressed on big bearing (7-2) end face.
6. digital bending Oil cylinder according to claim 2, it is characterized in that：Digital bending Oil cylinder also includes rotation
Encoder (9), rotary encoder (9) is fixed on guiding valve valve body (15), the corner of measurement connecting rod (18).
7. digital bending Oil cylinder according to claim 2, it is characterized in that：Oil circuit part also include replenishing valve (16),
Oil pipe flange (17)；Replenishing valve (16) is arranged in cylinder block (4), and the hole of its left and right ends is respectively communicated with cylinder block (4)
Inner chamber, guiding valve valve body (15), its upper end hole connects with the oil pipe flange (17) being fixed on cylinder block (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621150312.1U CN206329569U (en) | 2016-10-30 | 2016-10-30 | A kind of new digital bending Oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621150312.1U CN206329569U (en) | 2016-10-30 | 2016-10-30 | A kind of new digital bending Oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206329569U true CN206329569U (en) | 2017-07-14 |
Family
ID=59286845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621150312.1U Withdrawn - After Issue CN206329569U (en) | 2016-10-30 | 2016-10-30 | A kind of new digital bending Oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206329569U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438560A (en) * | 2016-10-30 | 2017-02-22 | 马鞍山市裕华机械制造有限公司 | Novel digital bending machine oil cylinder |
-
2016
- 2016-10-30 CN CN201621150312.1U patent/CN206329569U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438560A (en) * | 2016-10-30 | 2017-02-22 | 马鞍山市裕华机械制造有限公司 | Novel digital bending machine oil cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170714 Effective date of abandoning: 20180824 |