CN205551165U - Hydraulic pressure interpolates rotation formula clamping device for CNC tube bending machine - Google Patents
Hydraulic pressure interpolates rotation formula clamping device for CNC tube bending machine Download PDFInfo
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- CN205551165U CN205551165U CN201620380977.5U CN201620380977U CN205551165U CN 205551165 U CN205551165 U CN 205551165U CN 201620380977 U CN201620380977 U CN 201620380977U CN 205551165 U CN205551165 U CN 205551165U
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Abstract
The utility model discloses a hydraulic pressure interpolates rotation formula clamping device for CNC tube bending machine belongs to the CNC tube bending machine field, and it has solved current for the CNC tube bending machine among clamping device when hydraulic controller and clamping device synchronous revolution easy oil leak affect using effect and life's problem. The utility model discloses a pneumatic cylinder and hydraulic controller, pneumatic cylinder include cylinder body anterior segment, cylinder body back end and piston rod, and cylinder body anterior segment and cylinder body back end junction set up first oil pocket, and the piston rod is provided with the second oil pocket with cylinder body back end junction, and hydraulic controller includes the fuel feeding seat, sets up first fuel feeding chamber, the second fuel feeding chamber on the fuel feeding seat and set up first oil circuit and the second oil circuit in the cylinder body back end. The utility model discloses can make hydraulic controller and the synchronous rotation of clamping device's chuck, avoid oil spill risk, increase the stability of equipment operation, improve life.
Description
Technical field
This utility model belongs to CNC tube bending machine field, specifically, pushes away rotation type folder in relating to a kind of CNC tube bending machine hydraulic pressure
Hold device.
Background technology
Bending machine can be divided into CNC tube bending machine, hydraulic pipe bender etc..Hydraulic pipe bender is mainly used in power construction, rail-road road is built
If, boiler, bridge, boats and ships, furniture, the pipe laying of the aspect such as decoration and building, have that function is many, rational in infrastructure, behaviour
Make simple, conveniently moving, the installation advantage such as quickly.Such as Chinese Patent Application No. 201210235125.3, publication date 2012
The patent document on November 14, discloses the feeding clamping device in a kind of full-automatic numerical control hydraulic pipe bender, including: arrange
On big stand, the supporting plate on a pair feeding linear slide rail, is provided with the dolly with a pair striker plate on supporting plate, at a pair backgauge
It is provided with the clamping seat of a pair band guide pillar between plate, striker plate is provided with the clamping device that a pair clamping seat can be made mutually to clamp；
Dolly is arranged on supporting plate by leveling device, and the structure of described leveling device is: be provided with a pair on supporting plate
Hold the traversing linear slide rail of dolly；Being supported with a horizontal adjustment screw rod on supporting plate, on horizontal adjustment screw rod, threaded engagement is arranged
There is mounting seat, mounting seat is fixed with a demoulding cylinder, the piston rod of demoulding cylinder connects have to fix with dolly and be connected
Demoulding joint, is provided with handwheel in one end of horizontal adjustment screw rod.Above-mentioned feeding clamping device, it is possible to clamp cross section easily
For circular pipe fitting and clamping special-shaped section.But clamping device disclosed in this technical scheme is unsuitable for tubing cold bend(ing) technique, at pipe
During material cold bend(ing), tube wall Tensile and compression internal stress are big, and polarization is serious, it is easy to produce curved outside tube wall rupture,
The defect of inner side tube wall fold.
CNC tube bending machine can carry out a bending radius (single mode) in the cold state to tubing or two bending radius (bimodulus) twine
Wound bending, is widely used in various pipe fittings and the bending of wire rod of the industry such as automobile, air-conditioning.CNC tube bending machine clamping in the past
Device is in operation, there is bend pipe when clamping tight and easily occurs loosening, and it is existing that tubing and pipe clamping device easily produce serious slip
As and with the damage to tubing outward appearance, and clamp too tight easily damage tubing and produce improper deformation, and clamping dress
Putting self can not rotate, causing curved tubing is not absolute streamlined at bending part, the bend pipe processed in appearance with vapour
Car entirety is inharmonious, injury region hydraulic performance decline, the perishable problem causing shorten service life, in order to solve the problems referred to above, in
State's number of patent application 201310659419.3, the patent document in publication date on February 19th, 2014, disclose a kind of numerical controlled bending of pipe
The interior pushing-type clamping device of the 3 D stereo corner clamp in machine, belongs to CNC tube bending machine field.It includes collet, also wraps
Include top fixed cover, fixed sleeves, hydraulic pressure outer shell, bearing, interior pushing sleeve, hydraulic pressure inner casing, the first hydraulic cavities and the second hydraulic cavities,
Described top fixed cover, fixed sleeves, hydraulic pressure outer shell, bearing, collet, interior pushing sleeve, hydraulic pressure inner casing, the first hydraulic pressure
Chamber and the second hydraulic cavities are all cyclically symmetric structure, have a common central axis, and inside is collectively forming a clamping inner chamber.
The setting of these parts and assembly relation so that this invention is when clamping tubing, it is easy to control clamping force, to tubing without wound
Evil, it is ensured that move forward steadily the movement of interior pushing sleeve and the contraction of collet during clamping, it is to avoid move uneven causing
Disfiguring workpiece and sliding.Disclosed in this patent of invention, the operation principle of clamping device is: first entered from collet by tubing
At Kou insert clamping inner chamber, after now choosing clip position, by hydraulic controller in the second hydraulic cavities oil-filled, at oil pressure
Under effect, hydraulic pressure inner casing is moved to the left, and in hydraulic pressure inner casing promotes, pushing sleeve is also moved to the left, the left internal side compressing of interior pushing sleeve
Collet shrinks, and clamps tubing.When bend pipe, this invention can rotate self, can well discharge internal stress, in work
Time fricton-tight phenomenon, the tubing processed is streamlined good, not damaged, and machining accuracy is high.It is to first pass through hydraulic control when taking tubing
Device is oil-filled in the first hydraulic cavities, and under the effect of oil pressure, hydraulic pressure inner casing moves right, and in driving, pushing sleeve also moves right, this
Time collet elastic return, automatically unclamp tubing.
But technical scheme disclosed in above-mentioned patent is not disclosed the concrete structure of hydraulic controller, in the case of clamping device rotation, liquid
Pressure controller is also required to synchronous rotary, the most easily produces oil leakage phenomenon, big to equipment damage, shortens service life.
Summary of the invention
1, problem to be solved
Use with easy leakage of oil impact during clamping device synchronous rotary for hydraulic controller in existing CNC tube bending machine clamping device
Effect and the problem in service life, this utility model pushes away rotation type clamping device in providing a kind of CNC tube bending machine hydraulic pressure, it is possible to
Make the chuck synchronous axial system of hydraulic controller and clamping device, it is to avoid leakage of oil risk, add the stability that equipment runs, carry
High service life.
2, technical scheme
For solving the problems referred to above, this utility model adopts the following technical scheme that.
Rotation type clamping device is pushed away, including hydraulic cylinder and hydraulic controller, described hydraulic cylinder in a kind of CNC tube bending machine hydraulic pressure
Including cylinder body leading portion, cylinder body back segment and piston rod, cylinder body leading portion and cylinder body back segment junction, the first oil pocket, described piston are set
Bar and cylinder body back segment junction are provided with the second oil pocket, and described hydraulic controller includes for font, is arranged on for the on font
One fuel supply chamber, the second fuel supply chamber and the first oil circuit being arranged in cylinder body back segment and the second oil circuit；The first described oil circuit connects
First fuel supply chamber and the first oil pocket；The second described oil circuit connects the second fuel supply chamber and the second oil pocket.
Preferably, it is provided with sealing ring and guidance tape between described piston rod outer wall and cylinder body leading portion, cylinder body back segment inwall.
Preferably, the first described oil circuit include the first hydraulic fluid port oil circuit section, the first horizontal oil circuit section, First Transition erect oil circuit section,
One transition horizontal oil circuit section and the first oil pocket oil circuit section；The first described hydraulic fluid port oil circuit section connects with the first fuel supply chamber；Described
One horizontal oil circuit section is perpendicular to the first hydraulic fluid port oil circuit section, and first horizontal oil circuit section one end extends to cylinder body back segment end face, and this end is by oil
Stifled sealing, the other end erects oil circuit section and connects with First Transition；It is vertical with the first horizontal oil circuit section that described First Transition erects oil circuit section,
And extending to the outer wall of cylinder body back segment, First Transition erects oil circuit section and extends to one end of cylinder body back segment outer wall and seal by oil is stifled；Institute
The First Transition horizontal oil circuit section one end stated is erected oil circuit section and is connected with First Transition, and the other end extends to cylinder body back segment and connects with cylinder body leading portion
The end face touched, and extend to cylinder body back segment and contact one end of end face with cylinder body leading portion and block up sealing by oil；The first described oil pocket oil
One end, section and First Transition horizontal oil circuit section vertical connection, the other end and the connection of the first oil pocket；The second described oil circuit includes second
Hydraulic fluid port oil circuit section and the second horizontal oil circuit section；Second described horizontal oil circuit section one end connects with the second oil pocket, and the other end extends to extend
To cylinder body back segment end face, this end seals by oil is stifled；Second described hydraulic fluid port oil circuit section one end connects with the second fuel supply chamber, another
End and the second horizontal oil circuit section vertical connection.
Preferably, the first described fuel supply chamber is around the grooved chamber for font inwall one circle；The second described fuel supply chamber is cincture
The grooved chamber of cylinder body back segment outer wall one circle.
Preferably, described confession font and CNC tube bending machine fuselage are fixed and are connected.
Preferably, described hydraulic cylinder rear end is connected with electric rotary body.
Preferably, the described font that supplies is connected for rotatory sealing between cylinder body back segment.
Preferably, described rotatory sealing is connected as the first fuel supply chamber and the second fuel supply chamber both sides are provided with rotating seal ring.
3, beneficial effect
Compared to prior art, the beneficial effects of the utility model are:
(1) this utility model is by arranging the first oil circuit and the second oil circuit in the cylinder body back segment of hydraulic cylinder, and by the first oil circuit
Supply hydraulic power with the second oil circuit to hydraulic cylinder, make hydraulic controller become one structure with hydraulic cylinder, for realizing synchronization action
Providing the foundation such that it is able to improve clamping device bend pipe crudy, it is to avoid leakage of oil risk, what the equipment that adds ran stablizes
Property, improve service life；
(2) sealing ring and guidance tape it are provided with between this utility model piston rod outer wall and cylinder body leading portion, cylinder body back segment inwall, one
Aspect can improve the motility of hydraulic cylinder action, on the other hand also ensures that reduction leakage of oil, improves oil cylinder stability；
(3) this utility model piecewise combination in cylinder body back segment arranges the first oil circuit and the second oil circuit can effectively reduce and is processed into
This, it is possible to guaranteeing that hydraulic cylinder works reduces production cost on the premise of stable to greatest extent, increasing economic efficiency；
(4) this utility model the first fuel supply chamber is around the grooved chamber for font inwall one circle, and the second fuel supply chamber is after cylinder body
The grooved chamber of section outer wall one circle, hydraulic cylinder is being capable of lasting fuel feeding during clamping device synchronous rotary, to keep enough
With stable tube clip holding force；
(5) this utility model is connected for font and CNC tube bending machine fuselage are fixing, it is possible to provide steady to the hydraulic cylinder in rotary course
Stand oil pressure；
(6) this utility model is connected electric rotary body and can drive hydraulic cylinder and collet synchronous rotary with hydraulic cylinder rear end,
Improve pipe fitting bending quality；
(7) this utility model rotatory sealing is connected as the first fuel supply chamber and the second fuel supply chamber both sides are provided with rotating seal ring, really
Protect the sealing effectiveness during rotating against for font and hydraulic cylinder, do not produce leakage of oil risk, improve further equipment dependability and
Service life；
(8) this utility model simple in construction, reasonable in design, it is easy to manufacture.
Accompanying drawing explanation
Fig. 1 is the structural representation of hydraulic cylinder of the present utility model and hydraulic controller；
Fig. 2 is overall structure schematic diagram of the present utility model.
In figure: 1, cylinder body leading portion；2, cylinder body back segment；3, for font；4, piston rod；5, the first oil pocket；51, the first oil
Mouth oil circuit section；52, the first horizontal oil circuit section；53, First Transition erects oil circuit section；54, First Transition horizontal oil circuit section；55, first
Oil pocket oil circuit section；6, the second oil pocket；61, the second hydraulic fluid port oil circuit section；62, the second horizontal oil circuit section.
Detailed description of the invention
Below in conjunction with specific embodiment, this utility model is further described below.
Embodiment 1
As it is shown in figure 1, push away rotation type clamping device in a kind of CNC tube bending machine hydraulic pressure, including hydraulic cylinder and hydraulic controller,
In hydraulic cylinder includes cylinder body leading portion 1, cylinder body back segment 2 and piston rod 4, piston rod 4 outer wall and cylinder body leading portion 1, cylinder body back segment 2
It is provided with sealing ring and guidance tape, cylinder body leading portion 1 and cylinder body back segment 2 junction between wall and the first oil pocket 5, piston rod 4 are set
Cylinder body back segment 2 junction is provided with the second oil pocket 6, and hydraulic controller includes for font 3, is arranged on for first on font 3
Fuel supply chamber, the second fuel supply chamber and the first oil circuit being arranged in cylinder body back segment 2 and the second oil circuit；First oil circuit connects the first confession
Oil pocket and the first oil pocket 5；Second oil circuit connects the second fuel supply chamber and the second oil pocket 6；First oil circuit includes the first hydraulic fluid port oil circuit section
51, the first horizontal oil circuit section 52, First Transition erect oil circuit section 53, First Transition horizontal oil circuit section 54 and the first oil pocket oil circuit section 55；
First hydraulic fluid port oil circuit section 51 connects with the first fuel supply chamber；First horizontal oil circuit section 52 is perpendicular to the first hydraulic fluid port oil circuit section 51, and first
Horizontal oil circuit section 52 one end extends to cylinder body back segment 2 end face, and this end seals by oil is stifled, and the other end and First Transition erect oil circuit section
53 connections；It is vertical with the first horizontal oil circuit section 52 that First Transition erects oil circuit section 53, and extends to the outer wall of cylinder body back segment 2, and first
Transition is erected oil circuit section 53 and is extended to one end of cylinder body back segment 2 outer wall by the stifled sealing of oil；First Transition horizontal oil circuit section 54 one end with
First Transition erects oil circuit section 53 and connects, and the other end extends to the end face that cylinder body back segment 2 contacts with cylinder body leading portion 1, and extends to cylinder
Body back segment 2 contacts one end of end face and seals by oil is stifled with cylinder body leading portion 1；First oil pocket oil circuit section 55 one end is horizontal with First Transition
Oil circuit section 54 vertical connection, the other end and the first oil pocket 5 connect；Second oil circuit includes that the second hydraulic fluid port oil circuit section 61 and second is horizontal
Oil circuit section 62；Second horizontal oil circuit section 62 one end connects with the second oil pocket 6, and the other end extends to cylinder body back segment 2 end face,
This end seals by oil is stifled；Second hydraulic fluid port oil circuit section 61 one end connects with the second fuel supply chamber, the other end and the second horizontal oil circuit section 62
Vertical connection.
Push away rotation type clamping device in a kind of CNC tube bending machine hydraulic pressure of the present embodiment and be capable of the quick fuel feeding of hydraulic cylinder, with shape
Become enough, stable chucking power, make bend pipe clamping stable, reliable；In the present embodiment, hydraulic cylinder oil channel structures is compact, seals effect
The best, pipe fitting clamping stability can be effectively improved, and service life is long.
Embodiment 2
Due to pipe fitting, when cold bend(ing), curved inner wall is squeezed, curved outer wall is stretched, if the most uneven, inside and outside should
Power has big difference, and tubing products curved outer wall is easily broken, and inwall easily produces fold, has a strong impact on product quality, even makes
Product rejection, therefore, the present embodiment is further improved as follows:
Rotation type clamping device is pushed away in a kind of CNC tube bending machine hydraulic pressure, same as in Example 1, except that: for font 3
Fix with CNC tube bending machine fuselage and be connected；Hydraulic cylinder rear end is connected with electric rotary body；First fuel supply chamber is around for font 3
The grooved chamber of inwall one circle；Second fuel supply chamber is the grooved chamber around cylinder body back segment 2 outer wall one circle；For font 3 and cylinder body back segment
Connecting for rotatory sealing between 2, concrete, rotatory sealing is connected as the first fuel supply chamber and the second fuel supply chamber both sides are provided with rotation
Turn sealing ring.
As in figure 2 it is shown, in chuck inner core pipe fitting stretched in left end collet, for the first fuel supply chamber and second on font
Fuel supply chamber is connected with hydraulic power unit, and pressure oil liquid enters the second fuel supply chamber, enters the second oil circuit through the second fuel supply chamber, through the second oil
Road enters the second oil pocket, and pressure oil liquid promotes piston rod to move out after entering the second oil pocket, fixing interior pushing sleeve on the piston rod
With collet generation relative motion, under left end ramp effect, pipe fitting is clamped by collet；Bending machine is sent into after clamping pipe fitting
Being curved in bending die, now electric rotary body starts, and drives hydraulic cylinder and pipe fitting synchronous rotary, and rotating seal ring can
Effectively playing the effect of rotatory sealing, the structure of the second fuel supply chamber also ensure that pipe fitting remains at the steady statue of clamping simultaneously.
Claims (8)
1. push away a rotation type clamping device in CNC tube bending machine hydraulic pressure, including hydraulic cylinder and hydraulic controller, described hydraulic pressure
Cylinder includes cylinder body leading portion (1), cylinder body back segment (2) and piston rod (4), cylinder body leading portion (1) and cylinder body back segment (2) junction
Arranging the first oil pocket (5), described piston rod (4) and cylinder body back segment (2) junction are provided with the second oil pocket (6), and it is special
Levy and be: described hydraulic controller includes for font (3), is arranged on for the first fuel supply chamber on font (3), the second fuel feeding
Chamber and be arranged on the first oil circuit in cylinder body back segment (2) and the second oil circuit；The first described oil circuit connects the first fuel supply chamber and
One oil pocket (5)；The second described oil circuit connects the second fuel supply chamber and the second oil pocket (6).
Rotation type clamping device is pushed away in a kind of CNC tube bending machine hydraulic pressure the most according to claim 1, it is characterised in that: institute
It is provided with sealing ring and guidance tape between piston rod (4) outer wall stated and cylinder body leading portion (1), cylinder body back segment (2) inwall.
Rotation type clamping device is pushed away in a kind of CNC tube bending machine hydraulic pressure the most according to claim 1 and 2, it is characterised in that:
The first described oil circuit include the first hydraulic fluid port oil circuit section (51), the first horizontal oil circuit section (52), First Transition erect oil circuit section (53),
First Transition horizontal oil circuit section (54) and the first oil pocket oil circuit section (55)；The first described hydraulic fluid port oil circuit section (51) supplies with first
Oil pocket connects；The first described horizontal oil circuit section (52) is perpendicular to the first hydraulic fluid port oil circuit section (51), and the first horizontal oil circuit section (52)
One end extends to cylinder body back segment (2) end face, and this end seals by oil is stifled, and the other end erects oil circuit section (53) and connects with First Transition；
It is vertical with the first horizontal oil circuit section (52) that described First Transition erects oil circuit section (53), and extends to the outer wall of cylinder body back segment (2),
First Transition erects oil circuit section (53) and extends to one end of cylinder body back segment (2) outer wall by the stifled sealing of oil；Described First Transition is horizontal
Oil circuit section (54) one end is erected oil circuit section (53) and is connected with First Transition, and the other end extends to cylinder body back segment (2) and cylinder body leading portion
(1) end face contacted, and extend to cylinder body back segment (2) and contact one end of end face with cylinder body leading portion (1) and seal by oil is stifled；
First described oil pocket oil circuit section (55) one end and First Transition horizontal oil circuit section (54) vertical connection, the other end and the first oil pocket
(5) connection；The second described oil circuit includes the second hydraulic fluid port oil circuit section (61) and the second horizontal oil circuit section (62)；Described second
Horizontal oil circuit section (62) one end connects with the second oil pocket (6), and the other end extends to cylinder body back segment (2) end face, this end
Seal by oil is stifled；Second described hydraulic fluid port oil circuit section (61) one end connects with the second fuel supply chamber, the other end and the second horizontal oil circuit
Section (62) vertical connection.
Rotation type clamping device is pushed away in a kind of CNC tube bending machine hydraulic pressure the most according to claim 3, it is characterised in that: institute
The first fuel supply chamber stated is around the grooved chamber for font (3) inwall one circle；The second described fuel supply chamber is around cylinder body back segment (2)
The grooved chamber of outer wall one circle.
Rotation type clamping device is pushed away in a kind of CNC tube bending machine hydraulic pressure the most according to claim 4, it is characterised in that: institute
That states is connected for font (3) and CNC tube bending machine fuselage are fixing.
Rotation type clamping device is pushed away in a kind of CNC tube bending machine hydraulic pressure the most according to claim 5, it is characterised in that: institute
The hydraulic cylinder rear end stated is connected with electric rotary body.
Rotation type clamping device is pushed away in a kind of CNC tube bending machine hydraulic pressure the most according to claim 6, it is characterised in that: institute
That states is connected for rotatory sealing between cylinder body back segment (2) for font (3).
Rotation type clamping device is pushed away in a kind of CNC tube bending machine hydraulic pressure the most according to claim 7, it is characterised in that: institute
The rotatory sealing stated is connected as the first fuel supply chamber and the second fuel supply chamber both sides are provided with rotating seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620380977.5U CN205551165U (en) | 2016-04-27 | 2016-04-27 | Hydraulic pressure interpolates rotation formula clamping device for CNC tube bending machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620380977.5U CN205551165U (en) | 2016-04-27 | 2016-04-27 | Hydraulic pressure interpolates rotation formula clamping device for CNC tube bending machine |
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| CN205551165U true CN205551165U (en) | 2016-09-07 |
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| CN201620380977.5U Active CN205551165U (en) | 2016-04-27 | 2016-04-27 | Hydraulic pressure interpolates rotation formula clamping device for CNC tube bending machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107755563A (en) * | 2017-12-18 | 2018-03-06 | 张家港兴宇机械制造有限公司 | Pipe fitting clamping mechanism in bending machine |
| WO2020228338A1 (en) * | 2019-05-14 | 2020-11-19 | 深圳市牧激科技有限公司 | Laser cutting device |
| CN113001201A (en) * | 2021-03-15 | 2021-06-22 | 沈阳机床股份有限公司 | Servo indexing hollow rotary table clamped by hydraulically-driven spring chuck |
-
2016
- 2016-04-27 CN CN201620380977.5U patent/CN205551165U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107755563A (en) * | 2017-12-18 | 2018-03-06 | 张家港兴宇机械制造有限公司 | Pipe fitting clamping mechanism in bending machine |
| CN107755563B (en) * | 2017-12-18 | 2024-05-14 | 张家港兴宇机械制造有限公司 | Pipe fitting clamping mechanism in pipe bending machine |
| WO2020228338A1 (en) * | 2019-05-14 | 2020-11-19 | 深圳市牧激科技有限公司 | Laser cutting device |
| CN113001201A (en) * | 2021-03-15 | 2021-06-22 | 沈阳机床股份有限公司 | Servo indexing hollow rotary table clamped by hydraulically-driven spring chuck |
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