CN105750384B - Improved inner-pushing type clamping device for numerical control tube bending machine - Google Patents
Improved inner-pushing type clamping device for numerical control tube bending machine Download PDFInfo
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- CN105750384B CN105750384B CN201610321928.9A CN201610321928A CN105750384B CN 105750384 B CN105750384 B CN 105750384B CN 201610321928 A CN201610321928 A CN 201610321928A CN 105750384 B CN105750384 B CN 105750384B
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- collet
- chuck
- piston rod
- pushing
- clamping device
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/12—Bending rods, profiles, or tubes with programme control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/16—Auxiliary equipment, e.g. for heating or cooling of bends
Abstract
The invention discloses an improved inner-pushing type clamping device for a numerical control tube bending machine and belongs to the field of numerical control tube bending machines. The improved inner-pushing type clamping device solves the problems that an oil cylinder of an existing clamping device for a numerical control tube bending machine is poor in rotation sealing in the autorotation process and is likely to leak oil, and the service life is short. The improved inner-pushing type clamping device comprises a flexible chuck, an oil cylinder and a component, wherein the flexible chuck and the oil cylinder are connected through the component. The component for connecting the flexible chuck and the oil cylinder comprises a chuck pushing bush and a rotating rod. The oil cylinder comprises a cylinder body and a piston rod arranged in the cylinder body, and the chuck pushing bush is arranged at the stretching-out end of the piston rod, is fixed relative to the piston rod in the axial direction and can relatively rotate around the axis. The rotating rod is arranged in the piston rod, and is connected with the chuck pushing bush in the connecting mode that the rotating rod and the chuck pushing bush can rotate synchronous and move relatively in the axial direction. The flexible chuck is arranged at one end of the rotating rod. By means of the improved inner-pushing type clamping device, the problem of oil leakage caused by poor rotation sealing of the oil cylinder can be solved, so that the working stability of the clamping device is improved, and the service life is prolonged.
Description
Technical field
The invention belongs to CNC tube bending machine field, specifically, is related to pushing-type folder in a kind of CNC tube bending machine modified model
Hold device.
Background technology
CNC tube bending machine can in the cold state carry out a bending radius (single mode) or two bending radius (bimodulus) to tubing
Wound form bending, be widely used in various pipe fittings and the bending of wire rod of the industries such as automobile, air-conditioning.For conventional numerical controlled bending of pipe
In operation, there is bend pipe when clamping not tight and easily occur loosening in machine clamping device, tubing is easily produced sternly with pipe clamping device
The sliding phenomenon of weight and with the damage to tubing outward appearance, and clamp and too tight easily damage tubing and produce improper change
Shape, and clamping device itself can not rotate, causes curved tubing not to be absolute streamlined in bending part, and that what is processed is curved
Integrally uncoordinated with automobile in appearance, injury region hydraulic performance decline, the perishable problem for causing service life to shorten of pipe, China is specially
Sharp application number 201310659419.3, the publication date 2014 year 2 month patent document of 19 days, in disclosing a kind of CNC tube bending machine
The interior pushing-type clamping device of 3 D stereo corner clamp, belongs to CNC tube bending machine field.It includes collet, also including 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
End fixed cover, fixed sleeves, hydraulic pressure outer shell, bearing, collet, interior pushing sleeve, hydraulic pressure inner casing, the first hydraulic cavities and the second hydraulic pressure
Chamber is all cyclically symmetric structure, there is a common central axis, and inside is collectively forming a clamping inner chamber.These parts set
Put and assembly relation so that the invention is when tubing is clamped, it is easy to clamping force is controlled, to tubing fanout free region, it is ensured that in folder
The movement of interior pushing sleeve and the contraction of collet are moved forward steadily in tight process, it is to avoid movement it is uneven cause disfiguring workpiece and
Slide.
But disclosed in above-mentioned patent also there is following defect in technical scheme：Collet relies on interior pushing sleeve left end medial slope
It is pressed on fixed cover, once interior pushing sleeve unclamps, collet is in free state, and its axle center easily produces skew, is unfavorable for
To the heart when tubing is installed, tubing installation difficulty is increased；Collet is structure as a whole, it is not easy to change, a kind of collet
Can only correspond to and clamp a kind of size pipe, limit the raising of production efficiency；Interior pushing sleeve interior wall construction step is more, into oil, ash
Deng easy to clean is not allowed after foreign body, maintenance cost is increased；Clamping device oil cylinder synchronous rotary in rotary course, to rotary oil seal
Technical requirements are high, and using oil leak is easily produced after a period of time, service life of equipment is short.
The content of the invention
1st, the problem to be solved
For the not good easy generation oil leak of rotatory sealing during clamping device oil cylinder rotation of existing CNC tube bending machine, using the longevity
The short problem of life, the present invention provides pushing-type clamping device in a kind of CNC tube bending machine modified model, by integrally-built improvement,
Oil cylinder rotatory sealing can be avoided not good and the problem of oil leak, so as to improve the job stability of clamping device, extending makes
Use the life-span.
2nd, technical scheme
To solve the above problems, the present invention is adopted the following technical scheme that.
Pushing-type clamping device in a kind of CNC tube bending machine modified model, including collet, oil cylinder and connection elastic clip
The part of head and oil cylinder, described connection collet and the part of oil cylinder includes pushing away chuck and swingle；Described oil cylinder bag
Cylinder body and the piston rod being arranged in cylinder body are included, the described chuck that pushes away is arranged on piston rod external part, and described pushes away chuck and work
The axially opposing fixation of stopper rod, can rotate against around axis；Described swingle is arranged in piston rod, described swingle with push away
Chuck by can synchronous rotary and can move to axial connected mode connection；Described collet is arranged on swingle
One end；The described chuck that pushes away is sleeved on collet；Described collet and push away between chuck as wedge structure connection.
Preferably, described collet includes collet tip side and collet elastic tip；Described elastic clip
Head tip side is threadedly coupled with swingle；Described collet elastic tip outer wall is clamping ramps；Described pushes away chuck and bullet
The inwall of a section of property chuck elastic tip wall contacts is inclined-plane corresponding with clamping ramps.
Preferably, collet one-level inner core is provided with described collet elastic tip；Described elastic clip is first
In-core is provided with two grades of inner cores of collet in level；Described two grades of inner core centers of collet offer pipe fitting jaws.
Preferably, along its axially arranged flexible crack in described collet elastic tip；Described elastic fracture number
Measure as 3-5 bars, the circumferencial direction along collet elastic tip cross section is uniformly arranged.
Preferably, it is also equipped with elastic crack on described two grades of inner cores of collet one-level inner core and collet.
Preferably, described swingle stretches to one end outer wall of piston rod external part and is provided with pin groove vertically；Institute
Pushing away for stating stretch into semifixed connection in pin groove through pushing away chuck by rotary stopper pin between chuck and swingle；Described rotation
The diameter for turning spacer pin is equal to the width of pin groove and less than pin groove along the axial length of swingle.
Preferably, described pin groove has two, is symmetricly set on swingle outer wall both sides.
Preferably, described piston rod external part is provided with piston rod and pushes away folder connecting seat；Described pushes away chuck and piston rod
External part junction is provided be rotatably connected set and support set；The described set that is rotatably connected is sleeved on piston rod and pushes away folder connecting seat
On；It is described to be rotatably connected set and piston rod to be pushed away and be provided with preposition swivel bearing between folder connecting seat；Described support set is arranged
The common free end for pressing from both sides connecting seat is pushed away with piston rod in the set that is rotatably connected；Described support set is fixedly connected with the set that is rotatably connected；
Described support set and piston rod to be pushed away and be provided with rearmounted swivel bearing between folder connecting seat.
Preferably, described preposition swivel bearing includes preposition swivel bearing outer ring and preposition swivel bearing inner ring；It is described
Preposition swivel bearing outer ring be rotatably connected set axial end be fixedly connected；Described preposition swivel bearing inner ring and piston rod
An axial end for pushing away folder connecting seat is fixedly connected；Described rearmounted rotary shaft is contracted and includes rearmounted swivel bearing inner ring and rearmounted
Swivel bearing outer ring；Another axial end that described rearmounted swivel bearing inner ring pushes away folder connecting seat with piston rod is fixed and connected
Connect；Described rearmounted rotary shaft bearing outer-ring is fixedly connected with the axial end of support set.
Preferably, described swingle is hollow stem；Described hollow stem inner chamber is smooth without step inner chamber.
3rd, beneficial effect
Compared to prior art, beneficial effects of the present invention are：
(1) collet of the present invention is directly fixedly connected with swingle, even if therefore push away chuck and unclamp collet backward,
Collet itself will not also be produced and rocked, and be allowed to maintain the centering of self-consistentency, it is ensured that pipe fitting can be quickly and accurately
It is put in collet, additionally, the fixation by swingle to collet, reduces pushing-type clamping in conventional CNC tube bending machine
The top fixed cover adopted in device and fixed sleeves, have simplified apparatus structure, reduce cost of manufacture, while also making overall outer
Enclose diameter to diminish, it is thus possible to deeper into CNC tube bending machine bend pipe position, increased the convenience of operation；Piston in oil cylinder
Bar with push away the axially opposing fixation of chuck, therefore, it is possible to push away under acting in oil cylinder chuck movement, force push away chuck clamp elasticity
Chuck, but piston rod and push away between chuck around axially opposing rotation, therefore can make to push away chuck and moves in swingle effect lower band again
Property chuck in pipe fitting when rotating, oil cylinder can not rotate completely, thus reduce cylinder seal difficulty, it is to avoid rotary oil cylinder appearance
The risk of easy oil leakage；
(2) collet tip side of the present invention is threadedly coupled with swingle, is easy to disassembling, assembling and replacing；Collet elastic tip with
The setting for pushing away chuck contact surface allows the movement for pushing away chuck quickly and stably to make collet to central reduction, so as to press from both sides
Tight pipe fitting；
(3) collet one-level inner core is set in collet elastic tip of the present invention, and in-core sets again in collet one-level
Two grades of inner cores of collet are equipped with, the pipe fitting being put in two grades of inner cores of collet can so clamped by more uniformly
Power, so that it is guaranteed that tube clip keeps steady determining；In addition two grades of inner cores of collet one-level inner core and collet can be removed quickly,
Replacing, the installation rate of pipe fitting are improve, so as to promote the raising of production efficiency；
(4) in collet elastic tip of the present invention along its axially arranged elastic crack and collet one-level inner core and
Elastic crackle on two grades of inner cores of collet can make elastic increase, using being received by elastic crack during chucking power
Contracting, diastole complete the stable holding of pipe fitting；
(5) present invention synchronously revolve with the cooperation of pin groove using rotary stopper pin to be realized pushing away between chuck and swingle
Turn, the function of axially opposing movement, simple structure, stable, reliability is high；
(6) present invention is provided with piston rod and pushes away folder connecting seat in piston rod external part, and stretches out with piston rod chuck is pushed away
End junction is provided be rotatably connected set and support set, piston rod is pushed away into folder by preposition swivel bearing and rearmounted swivel bearing and is connected
Joint chair, the set that is rotatably connected, support set three be ingenious be arranged to promote to push away chuck and piston rod realize synchronizing moving vertically but around
Axis rotates against the mechanism of function, smart structural design, simple, and assembly difficulty is low, and flexible movements, makes to push away chuck and piston
Vertically synchronizing moving is more stable for bar, make to push away chuck rotate against around axis with piston rod it is more flexible；
(7) position of preposition swivel bearing of the invention and rearmounted swivel bearing is arranged makes piston rod push away folder connecting seat, rotation
Structure is compacter between adapter sleeve, support set three, reduces overall volume, while making three's synchronization and relative motion more
Flexibly, it is stable, and then improve the machining accuracy of equipment CNC tube bending machine；
(8) swingle of the present invention is arranged to hollow stem, equipment is greatly reduced under the premise of rigid requirements are met and is integrally weighed
Amount, reduces cost, and hollow stem inner chamber is smooth without step inner chamber, not only reduces difficulty of processing, more can conveniently enter
The cleaning of the greasy dirt inside swingle, than prior art, later stage nursing is convenient, light.
Description of the drawings
Fig. 1 is oil cylinder of the present invention and its cross-sectional view with collet connection member；
Fig. 2 is collet cut-away section structural representation of the present invention；
Fig. 3 is present invention entirety cross-sectional view；
Fig. 4 is the end face structure schematic diagram of collet.
In figure：1st, collet；11st, collet tip side；12nd, collet elastic tip；13rd, in collet one-level
Core；14th, two grades of inner cores of collet；15th, pipe fitting jaws；
2nd, chuck is pushed away；3rd, swingle；4th, piston rod；41st, piston；5th, cylinder body；51st, oil pocket；
6th, piston rod pushes away folder connecting seat；61st, preposition swivel bearing；62nd, rearmounted swivel bearing；611st, outside preposition swivel bearing
Circle；612nd, preposition swivel bearing inner ring；621st, rearmounted swivel bearing inner ring；622nd, rearmounted rotary shaft bearing outer-ring；
7th, be rotatably connected set；8th, support set；9th, rotary stopper pin.
Specific embodiment
The present invention is further described below with reference to specific embodiment.
Embodiment 1
As shown in figure 3, pushing-type clamping device in a kind of CNC tube bending machine modified model, including collet 1, oil cylinder and
The part of connection collet 1 and oil cylinder, connecting the part of collet 1 and oil cylinder includes pushing away chuck 2 and swingle 3；
As shown in Fig. 2 oil cylinder includes cylinder body 5 and the piston rod 4 being arranged in cylinder body 5, push away chuck 2 and be arranged on piston rod 4
External part, pushes away chuck 2 and the axially opposing fixation of piston rod 4, can rotate against around axis, and specifically, the external part of piston rod 4 is arranged
There is piston rod to push away folder connecting seat 6；Push away chuck 2 and be rotatably connected set 7 and support set 8 are provided with the external part junction of piston rod 4；Rotation
Turn adapter sleeve 7 be sleeved on piston rod push away folder connecting seat 6 on；Be rotatably connected set 7 and piston rod push away folder connecting seat 6 between be provided with before
Swivel bearing 61 is put, preposition swivel bearing 61 includes preposition swivel bearing outer ring 611 and preposition swivel bearing inner ring 612；It is preposition
Swivel bearing outer ring 611 is fixedly connected with 7 axial ends of set that are rotatably connected；Preposition swivel bearing inner ring 612 pushes away folder with piston rod
One axial end of connecting seat 6 is fixedly connected；Support set 8 is arranged on the set 7 that is rotatably connected and pushes away being total to for folder connecting seat 6 with piston rod
Same free end；Support set 8 is fixedly connected with the set 7 that is rotatably connected；Support set 8 and piston rod are pushed away after being provided between folder connecting seat 6
Put swivel bearing 62；Rearmounted swivel bearing 62 includes rearmounted swivel bearing inner ring 621 and rearmounted rotary shaft bearing outer-ring 622；It is rearmounted
Another axial end that swivel bearing inner ring 621 pushes away folder connecting seat 6 with piston rod is fixedly connected；Rearmounted rotary shaft bearing outer-ring
622 are fixedly connected with the axial end of support set 8；
Swingle 3 is arranged in piston rod 4, swingle 3 with push away chuck 2 by synchronous rotary and can moving to axial
Connected mode connection, specifically, as shown in Fig. 2 one end outer wall both sides that swingle 3 stretches to the external part of piston rod 4 symmetrically set
It is equipped with two pin grooves vertically；Push away and bearing pin is stretched into through pushing away chuck 2 by rotary stopper pin 9 between chuck 2 and swingle 3
Semifixed connection in groove；The diameter of rotary stopper pin 9 be equal to pin groove width and less than pin groove along the axial direction of swingle 3 length
Degree；
Collet 1 is arranged on one end of swingle 3, and specifically, collet 1 includes collet tip side 11 and bullet
Property chuck elastic tip 12, collet tip side 11 is threadedly coupled with swingle 3；Push away chuck 2 and be sleeved on collet 1, elasticity
Chuck 1 and push away between chuck 2 for wedge structure connection, specifically, the outer wall of collet elastic tip 12 be clamping ramps, push away chuck
2 inwalls with a section of the wall contacts of collet elastic tip 12 are inclined-plane corresponding with clamping ramps；
As shown in Figure 1 and Figure 4, along its axially arranged flexible crack, elastic crack quantity in collet elastic tip 12
For 4, the circumferencial direction along the cross section of collet elastic tip 12 is uniformly arranged；Arrange in collet elastic tip 12 flexible
Two grades of inner cores 14 of collet, two grades of inner cores of collet are provided with chuck one-level inner core 13, collet one-level inner core 13
14 centers offer pipe fitting jaws 15, as shown in figure 4, also setting on two grades of inner cores 14 of collet one-level inner core 13 and collet
It is equipped with elastic crack；
In order to reduce difficulty of processing, and the cleaning of the convenient greasy dirt into inside swingle, make later stage nursing more square
Just, easily, swingle 3 is hollow stem in the present embodiment, and hollow stem inner chamber is smooth without step inner chamber.
The operation principle of pushing-type clamping device is in a kind of CNC tube bending machine modified model of the present embodiment：Hydraulic power unit is to oil
The input pressure fluid of oil pocket 51 in cylinder, pressure oil liquid promote piston 41, move forward piston rod 4, piston rod 4 with push away chuck 2
Axially opposing fixation, under piston rod effect, pushes away chuck 2 and is axially moveable in the lump, and pushes away chuck 2 and collet elastic tip 12
The inwall of a section of wall contacts is inclined-plane corresponding with clamping ramps, so pushing away collet bullet of the chuck 2 to collet 1
Property end 12 apply chucking power, force collet 1 clamp pipe fitting；After pipe fitting is clamped, because technique needs, pipe fitting needs side to bend
Side rotates, and now arranges a revolving power mechanism and bar 3 is rotated rotates, swingle 3 with push away chuck 2 by can synchronous rotary
And can move to axial connected mode connection, therefore swingle 3 rotate while, push away chuck 2 also can synchronous rotary, so
Pipe fitting in collet 1, push away chuck 2, the three of swingle 3 and realize synchronous rotary, it is important that push away chuck 2 and piston rod
Between due to rotating against around axis, therefore while pushing away chuck 2 and rotate, without the need for rotation, this is compared for piston rod 4 and cylinder body 5
Prior art needs rotatory sealing safer, and stable higher, service life is longer.
The present invention has made compared to existing technology subversive change, not only solves many problems of prior art,
Bring more advantages：Overall volume diminishes, installation, more convenient operation, and the raising of production effect is promoted indirectly；Collet
Improvement is avoided when pipe fitting is installed and is not easy the problem to the heart, makes pipe fitting once mounting in place, and speed is accelerated, and improves production effect
Rate；Collet adopts multilamellar core arrangement, is not only convenient for changing to adapt to the pipe fitting of different-diameter specification, and makes clamping essence
Degree and stability are higher；Device center adopts hollow-core construction, and without interior step, not only reduces difficulty of processing, can more make greasy dirt
Cleaning difficulty is reduced, so as to reduce maintenance and repair cost；When workpiece rotates under technological requirement, oil cylinder remains fixing shape
State, substantially increases oil cylinder stability, not only avoid using the high cost technology such as rotatory sealing, can more play prolongation and use the longevity
The effect of life.
Claims (7)
1. a kind of pushing-type clamping device in CNC tube bending machine modified model, including collet (1), oil cylinder and connection elastic clip
The part of head (1) and oil cylinder, it is characterised in that：Described connection collet (1) and the part of oil cylinder include pushing away chuck (2) and
Swingle (3)；Described oil cylinder includes cylinder body (5) and the piston rod (4) being arranged in cylinder body (5), and the described chuck (2) that pushes away sets
Put in piston rod (4) external part, described pushes away chuck (2) and the axially opposing fixation of piston rod (4), can rotate against around axis；
Described swingle (3) is arranged in piston rod (4), described swingle (3) with push away chuck (2) by can synchronous rotary and can
The connected mode connection for moving to axial；Described collet (1) is arranged on one end of swingle (3)；Described pushes away folder
Set (2) is sleeved on collet (1)；Described collet (1) is connected between chuck (2) with pushing away for wedge structure；Described
Collet (1) includes collet tip side (11) and collet elastic tip (12)；Described collet tip side
(11) it is threadedly coupled with swingle (3)；Described collet elastic tip (12) outer wall is clamping ramps；Described pushes away chuck
(2) inwall with a section of collet elastic tip (12) wall contacts is inclined-plane corresponding with clamping ramps；Described elasticity
Collet one-level inner core (13) is provided with chuck elastic tip (12)；It is provided with described collet one-level inner core (13)
Two grades of inner cores (14) of collet；Described two grades of inner core (14) centers of collet offer pipe fitting jaws (15)；Described
Swingle (3) stretches to one end outer wall of piston rod (4) external part and is provided with pin groove vertically；It is described push away chuck (2) with
Semifixed connection in pin groove is stretched into through chuck (2) is pushed away by rotary stopper pin (9) between swingle (3)；Described rotation
The diameter of spacer pin (9) is equal to the width of pin groove and less than pin groove along the axial length of swingle (3).
2. pushing-type clamping device in a kind of CNC tube bending machine modified model according to claim 1, it is characterised in that：It is described
Collet elastic tip (12) on along its axially arranged flexible crack；Described elastic crack quantity is 3-5 bars, along elasticity
The circumferencial direction of chuck elastic tip (12) cross section is uniformly arranged.
3. pushing-type clamping device in a kind of CNC tube bending machine modified model according to claim 2, it is characterised in that：It is described
Two grades of inner cores (14) of collet one-level inner core (13) and collet on be also equipped with elastic crack.
4. pushing-type clamping device in a kind of CNC tube bending machine modified model according to claim 1, it is characterised in that：It is described
Pin groove have two, be symmetricly set on swingle (3) outer wall both sides.
5. pushing-type clamping device in a kind of CNC tube bending machine modified model according to claim 1, it is characterised in that：It is described
Piston rod (4) external part be provided with piston rod push away folder connecting seat (6)；The described chuck (2) that pushes away connects with piston rod (4) external part
The place of connecing is provided be rotatably connected set (7) and support set (8)；The described set (7) that is rotatably connected is sleeved on piston rod and pushes away folder connecting seat
(6) on；It is described to be rotatably connected set (7) and piston rod to be pushed away and be provided with preposition swivel bearing (61) between folder connecting seat (6)；It is described
Support set (8) be arranged on the common free end that be rotatably connected set (7) and piston rod push away folder connecting seat (6)；Described support set
(8) it is fixedly connected with the set (7) that is rotatably connected；Described support set (8) and piston rod push away be provided between folder connecting seat (6) it is rearmounted
Swivel bearing (62).
6. pushing-type clamping device in a kind of CNC tube bending machine modified model according to claim 5, it is characterised in that：It is described
Preposition swivel bearing (61) including preposition swivel bearing outer ring (611) and preposition swivel bearing inner ring (612)；Described is preposition
Swivel bearing outer ring (611) is fixedly connected with set (7) axial end that is rotatably connected；Described preposition swivel bearing inner ring (612)
An axial end for pushing away folder connecting seat (6) with piston rod is fixedly connected；Described rearmounted swivel bearing (62) is including back-mounted rotary
Turn bearing inner race (621) and rearmounted rotary shaft bearing outer-ring (622)；Described rearmounted swivel bearing inner ring (621) pushes away with piston rod
Another axial end of folder connecting seat (6) is fixedly connected；Described rearmounted rotary shaft bearing outer-ring (622) and support set (8)
Axial end is fixedly connected.
7. pushing-type clamping device in a kind of CNC tube bending machine modified model according to claim 1-6 any one, it is special
Levy and be：Described swingle (3) is hollow stem；Described hollow stem inner chamber is smooth without step inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610321928.9A CN105750384B (en) | 2016-05-16 | 2016-05-16 | Improved inner-pushing type clamping device for numerical control tube bending machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610321928.9A CN105750384B (en) | 2016-05-16 | 2016-05-16 | Improved inner-pushing type clamping device for numerical control tube bending machine |
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| Publication Number | Publication Date |
|---|---|
| CN105750384A CN105750384A (en) | 2016-07-13 |
| CN105750384B true CN105750384B (en) | 2017-04-26 |
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| CN107470706B (en) * | 2017-08-30 | 2019-08-23 | 宁波力品格自动化科技有限公司 | A kind of double collet driving mechanism of tubulose automatic gas cutting machine |
| 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 |
| CN108097828B (en) * | 2017-12-29 | 2023-06-06 | 浙江长兴和良智能装备有限公司 | Feeding main shaft device and pipe bending machine |
| CN109248944B (en) * | 2018-11-27 | 2023-08-11 | 安徽德系重工科技有限公司 | Elastic clamping device of numerical control pipe bending machine |
| TWI685393B (en) * | 2019-01-11 | 2020-02-21 | 喬陞機器股份有限公司 | Tube end clamping apparatus |
| CN111974889B (en) * | 2019-05-21 | 2022-08-26 | 乔升机器股份有限公司 | Pipe fitting end clamping device |
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| CN202701070U (en) * | 2012-08-07 | 2013-01-30 | 张家港市华舜机械制造有限公司 | Auxiliary driving device for pipe-bending machine |
| CN203061741U (en) * | 2012-12-25 | 2013-07-17 | 南通大西洋机械有限公司 | Clamping device of feeding mechanism of numerical control bending machine |
| CN203155863U (en) * | 2013-03-04 | 2013-08-28 | 黄伟明 | Automatic clamping and discharging mechanism for thin-walled pipe bender |
| CN103586314B (en) * | 2013-12-06 | 2015-04-01 | 安徽德系重工科技有限公司 | Inward-pushing-type clamping device of three-dimensional corner clamping tube in numerically-controlled tube bending machine |
| CN203804073U (en) * | 2014-04-01 | 2014-09-03 | 四川豪特设备有限公司 | Workpiece clamping structure of hot spinning machine |
| CN104191275A (en) * | 2014-08-13 | 2014-12-10 | 东莞市日进五金科技有限公司 | Workpiece clamping device of feeding machine and clamping method |
| CN205599806U (en) * | 2016-05-16 | 2016-09-28 | 安徽德系重工科技有限公司 | Pushing -type clamping device in improved generation for CNC tube bending machine |
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2016
- 2016-05-16 CN CN201610321928.9A patent/CN105750384B/en active Active
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Denomination of invention: Improved inner-pushing type clamping device for numerical control tube bending machine Effective date of registration: 20190621 Granted publication date: 20170426 Pledgee: Hengshan Ma'anshan finance Company limited by guarantee Pledgor: ANHUI DEXI DHI TECHNOLOGY Co.,Ltd. Registration number: 2019340000325 |
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Date of cancellation: 20220829 Granted publication date: 20170426 Pledgee: Hengshan Ma'anshan finance Company limited by guarantee Pledgor: ANHUI DEXI DHI TECHNOLOGY Co.,Ltd. Registration number: 2019340000325 |