CN206028405U - Booster bending machine is drawn to wound form - Google Patents

Abstract

The utility model discloses a booster bending machine is drawn to wound form belongs to the bending machine field, with the problem of the production of pipe fitting interference influence, restriction production when it has been solved current booster bending machine clamping modules and resets. The utility model discloses a clamping device, clamp mould and fundamental mode, clamping device including pressing from both sides die holder, slider, take -up housing and slider drive, the take -up housing upper surface be provided with the slide rail, the slider setting be in the slide rail on, slider drive with the slider connect, fixed setting of double -layered die holder be in the slider on, the double -layered mould one end of being close to the fundamental mode through the rotatable setting of round pin axle on pressing from both sides the die holder, the fundamental mode lower extreme with press from both sides one side that the mould corresponds and be provided with slope piece. The utility model discloses can simplify the mechanism, avoid interference influence, its flexible movements have reduced the pipe fitting processing degree of difficulty.

Description

A kind of wound form drawing heading pipe bender

Technical field

This utility model belongs to bending machine field, specifically, is related to a kind of wound form drawing heading pipe bender.

Background technology

The pipe fitting of band bending angle is widely used in pipeline field, defeated especially for the high pipeline of required precision Feed technique, the uniform wall thickness degree of pipe fitting, angle of bend uniformity coefficient, bent angle inside and outside wall circularity etc. determine the quality of pipe fitting. Pipe fitting bending realizes that using bending machine bending machine is a kind of machine by pipe fitting bending.Bending machine generally comprises main mould, clamping The parts such as mould, binder guide rail mould, heading mechanism, heading clamping mold, anti-wrinkling mould.Such as Chinese Patent Application No. 200710040527.7, the patent application document in publication date on October 10th, 2007 discloses a kind of processing method of bent pipe with small R And its device, include the three-dimensional numerical control pipe bender with hydraulic pressure and servo motor driven mechanism, by eight pawl clampings, diameter mould, folder Mould, pattern constitute shaping bend pipe mould and cored bar reviving joints and anti-wrinkling mould auxiliary, diameter mould, clamping, pattern and Be provided with the semicircle cambered surface strip limited impression being consistent with workpiece external diameter on anti-wrinkling mould, risen during work respectively it is spacing, auxiliary push away, Guiding, the effect that collaboration is clamped and synchronously bending is turned to, the reviving joints of cored bar have support tube wall and help curved work(with guaranteeing the quality Can, anti-wrinkling mould has corrugated function on the inside of prevention steel pipe, by numerical control servo precise control, in three station die clamped one times Brake forming.Pipe fitting is clamped with clamping mold when working by bending machine using main mould, and the bending of pipe fitting, main mould are realized in main mould rotation During rotation, clamping mold synchronous rotary, after pipe fitting bending in place, clamping mold separates rear spinning reduction with main mould；Usual pipe fitting When past direction bending one is curved, clamping mold smoothly can reset, but when pipe fitting needs past contrary both direction bending many When individual curved (S-shaped bend pipe part), clamping mold produces interference to pipe fitting, it is impossible to realize smoothly resetting.Such as Chinese Patent Application No. 201410597788.9, it is curved a kind of heading have been recorded in the patent application document Figure of description in publication date on March 25th, 2015 Pipe machine, and Chinese Patent Application No. 201120192806.7, a kind of heading bend pipe disclosed in 25 days April in 2012 of publication date Machine, including main mould body, pushing tow guide plate and top-pushing mechanism, also including portable wrinkle resistant apparatus for shaping.Above-mentioned two parts of patent application texts Top pier bending machine disclosed in part is present when clamping mold resets will be interfered by such as S-shaped bend pipe part, curved so as to limit Pipe machine is to needing toward contrary both direction to bend the processing of multiple curved pipe fittings.

The known technical scheme that can solve the problem that above-mentioned interference problem has using sunk type clamping mold, i.e., in clamping mold After separating with main mould, adjust clamping mold and move downward with respect to main mould, resetted after getting around elbow member again, the structure can solve to do When relating to problem, but how to realize that clamping mold is sunk, separated with main mould and rising and main mould compound tense are not produced to pipe fitting and rubbed Wipe, and how to realize that sinking mechanism structure simplifies, cost is minimum, is the new technology faced required for those skilled in the art Problem.

The content of the invention

1st, problem to be solved

The problem interfered with pipe fitting when resetting for existing heading pipe bender clamping mold, this utility model are provided one kind and are twined Wound drawing heading pipe bender, using slope climbing type clamping device, can realize main mould individual reset, above-mentioned so as to efficiently solve Problem, while with simple structure, flexible movements, the effect that can reduce pipe fitting difficulty of processing.

2nd, technical scheme

For solving the above problems, this utility model is adopted the following technical scheme that.

A kind of wound form drawing heading pipe bender, including clamping device, clamping and main mould, described clamping device includes Clamping seat, slide block, take-up housing and slider-actuated, described take-up housing upper surface are provided with slide rail, and described slide block is arranged on institute On the slide rail stated；Described slider-actuated is connected with described slide block；Described clamping seat is fixedly installed on described slide block； Described clamping is rotatably disposed on clamping seat near one end of main mould by bearing pin；Described main mould lower end is corresponding with clamping Side be provided with slope block.

Preferably, described main mould lower end to arrange and be provided with stopper slot above the block side of slope；Described clamping and main mould The lower end of relative one side is provided with projection, and described projection is corresponding with stopper slot.

Preferably, described clamping is provided with Horizontal limiting step and vertical limited step with one end that clamping seat is connected； The end face of described clamping seat includes upper surface and lower surface；Described Horizontal limiting step is corresponding with upper surface, and described hangs down Straight limited step is corresponding with lower surface.

Preferably, described slope block upper surface includes horizontal segment, section of climbing from top to bottom successively and enters slope section；Described water Flat section and plane-parallel；Described section of climbing is more than the angle into slope section with horizontal plane with the angle of horizontal plane.

Preferably, described projection bottom is arc surface；The described slope section end upper surface that enters is set to arc surface.

Preferably, its slide rail direction is provided with sliding eye in the middle part of described take-up housing, away from one end following table of main mould seat Face is provided with fixed handss；Described slider bottom is provided with slip handss；Described slip handss pass through sliding eye；Described slide block drives It is dynamic to include oil cylinder, determine connecting rod and dynamic connecting rod；Described connecting rod one end of determining is connected by bearing pin with the piston rod of oil cylinder, the other end with Fixed handss are connected by bearing pin；Described dynamic connecting rod one end is connected by bearing pin with the piston rod of oil cylinder, the other end and slip handss Connected by bearing pin.

Preferably, described slide block upper surface arranges track, and described clamping seat is arranged on described track, and is passed through Tight fixed bolt is fixed；Described slide block upper surface arranges T-slot, is provided with clamping positioning seat in described T-slot, and by tight Determine bolt to fix；It is provided with clamping regulating rod on described clamping seat, the end face of clamping regulating rod one end and described clamping seat Threaded connection, the other end are contacted with described clamping positioning seat.

Preferably, clamping fine-tuning nut is provided with described clamping regulating rod.

Preferably, also including main mould resetting means；Described main mould resetting means includes main mould support, support gear and master Die holder gear；On described main mould seat, position corresponding with described slope block is provided with main mould linkage groove；Described main mould seat can It is rotatably provided on main mould support；Described main mould support is fixedly connected with described take-up housing；Towards master on described slide block On die holder, one end of main mould linkage groove is provided with linkage projection.

Preferably, described main mould support is hollow structure；Described main mould seat upper end and described main mould pedestal upper end Spherical bearing connects, and lower end is fixedly connected through main mould support with described main mould seat gear；Described main mould seat gear and main mould Support is connected by bearing；Described main mould support outer wall is provided with support gear.

3rd, beneficial effect

Compared to prior art, the beneficial effects of the utility model are：

(1) this utility model arranges clamping device, and its clamping seat maximum height is less than main mould, while arranging clamping and slope block It is engaged, the effect for preventing pipe fitting from interfering when dismounting can be effectively played, and this utility model can be applied to many bendings of processing Direction pipe fitting, improves production efficiency and range of application；

(2) this utility model clamping pipe fitting positioning precision is high, and clamping is stable, using projection and stopper slot, Horizontal limiting platform Rank and upper surface double limitation device guarantee to play above-mentioned beneficial effect；

(3) this utility model to slope block be designed to make pipe fitting holding action near it is slow, finally realize that level is clamped Pipe fitting, high working efficiency, level clamping can be played prevents pipe fitting friction texturizing, the effect of friction scratch；

(4) this utility model flexible movements, compact conformation, stable transmission, power output are strong, and action controllability is high, from And improve bend pipe precision；

(5) this utility model can be suitable for the pipe fitting of processing different-diameter specification by adjusting clamping stroke, process model Enclose wide, reduce many specification pipe fitting processing costs, improve efficiency；

(6) this utility model sets up main mould resetting means, is engaged with clamping device, after the completion of pipe fitting bending, clamps Device unclamps pipe fitting, if main mould and clamping device synchronous reset, now pipe fitting needs to unload, and utilizes master of the present utility model Mould resetting means, can make clamping device reset in advance, and now pipe fitting need not be unloaded, and directly can adjust to next bender Position, then main mould individual reset is carried out, after main mould resets, clamping device clamps pipe fitting again, so substantially increases work efficiency.

Description of the drawings

Fig. 1 is dimensional structure diagram of the present utility model；

Fig. 2 is the three-dimensional structure diagram of clamping device in this utility model；

Fig. 3 is the front view of clamping device in this utility model；

Top views of the Fig. 4 for Fig. 3；

Fig. 5 be Fig. 4 in along line A-A cut-away illustration；

Fig. 6 is the part enlarged diagrams such as main mould, clamping, clamping seat in this utility model；

Front views of the Fig. 7 for Fig. 5；

Fig. 8 be Fig. 7 in main mould combined with clamping after state diagram；

Another angle schematic perspective views of the Fig. 9 for Fig. 6；

Integrality figure when Figure 10 is separated with clamping for main mould in this utility model；

Sectional views of the Figure 11 for Figure 10；

Figure 12 is clamping uphill process state diagram in Figure 11；

Figure 13 is this utility model main mould resetting means and clamping device attachment structure figure；

Figure 14 is this utility model main mould resetting means sectional view.

In figure：1st, clamping device；11st, clamping seat；111st, clamping fixing groove；112nd, clamping regulating rod；113rd, upper surface； 114th, lower surface；115th, clamping fine-tuning nut；116th, tight fixed bolt；12nd, clamping positioning seat；121st, tight fixed bolt；13rd, slide block； 131st, link raised；132nd, slip handss；14th, take-up housing；141st, sliding eye；142nd, fixed handss；15th, slider-actuated；151st, oil cylinder； 152nd, determine connecting rod；153rd, move connecting rod；16th, pipe fitting jaws；

2nd, main mould resetting means；21st, main mould seat；211st, main mould linkage groove；22nd, main mould support；23rd, support gear；24th, it is main Die holder gear；

3rd, clamping；31st, clamping mouth；32nd, projection；33rd, Horizontal limiting step；34th, vertical limited step；

4th, main mould；41st, main mould mouth；42nd, stopper slot；43rd, slope block；431st, horizontal segment；432nd, climb section；433rd, enter slope section；

5th, binder guide rail mould；6th, heading mechanism.

Specific embodiment

This utility model is further described below with reference to specific embodiment.

Embodiment 1

As shown in figure 1, a kind of wound form drawing heading pipe bender, including clamping device 1, main mould resetting means 2, clamping 3, Main mould 4, binder guide rail mould 5, heading mechanism 6, as shown in figure 13, main mould resetting means 2 includes main mould seat 21, main mould support 22 With main mould seat gear 24；As shown in Figure 2, Figure 3 and Figure 4, clamping device 1 includes clamping seat 11, slide block 13, take-up housing 14 and slide block Drive 15；

Main mould seat 21 is rotatably disposed on main mould support 22, specifically as shown in figure 14, and described main mould support 22 is Hollow structure, 21 upper end of main mould are connected with 22 upper end spherical bearing of main mould support, and lower end is through main mould support 22 and main mould seat gear 24 are fixedly connected；Main mould seat gear 24 is connected by bearing with main mould support 22, and main mould seat 21 can be in main mould seat gear 24 Rotate relative to main mould support 22 under driving；

22 outer wall of main mould support is provided with support gear 23；

As shown in figure 8, main mould 4 is fixedly installed on main mould seat 21；11 upper surface of clamping seat is less than main mould mouth 41 in main mould 4 Minimum point, installation and the dismounting of such pipe fitting will not be subject to interfering for clamping seat 11；

As shown in figure 13, main mould support 22 is fixedly connected with take-up housing 14；Main mould linkage groove is provided with main mould seat (21) (211)；One end on slide block 13 towards main mould linkage groove 211 on main mould seat 21 is provided with linkage raised 131, linkage raised 131 It is corresponding with main mould linkage groove 211；

As shown in figure 5,14 upper surface of take-up housing is provided with slide rail, slide block 13 is arranged on slide rail；Clamping seat 11 is fixed and is set Put on slide block 13；One end of main mould 4 is provided with clamping fixing groove 111 on clamping seat 11, clamping 3 is rotatable by bearing pin It is arranged in clamping fixing groove 111；

As shown in figure 5, its slide rail direction is provided with sliding eye 141 in the middle part of take-up housing 14, away from one end of main mould seat 21 Lower surface is provided with fixed handss 142；13 bottom of slide block is provided with slip handss 132；Slip handss 132 pass through sliding eye 141；Slide block drives Dynamic 15 include oil cylinder 151, determine connecting rod 152 and dynamic connecting rod 153；The end of the cylinder body of oil cylinder 151 is arranged on by bearing pin and slide block On the side plate that seat 14 is fixedly connected, oil cylinder 151 can be relative to the side plate rotation being fixedly connected with take-up housing 14；Determine connecting rod 152 1 End is connected by bearing pin with the piston rod of oil cylinder 151, and the other end is connected by bearing pin with fixed handss 142；153 one end of dynamic connecting rod with The piston rod of oil cylinder 151 is connected by bearing pin, and the other end is connected by bearing pin with slip handss 132；Can using this driving structure To reduce installing space, increase output power makes 13 action of slide block more safe and reliable；

As shown in Figure 6 and Figure 7,4 upper end of main mould is provided with main mould mouth 41, and lower end is provided with stopper slot 42, and lower end side sets It is equipped with slope block 43；3 one end of clamping is rotatably connected in clamping fixing groove 111 by bearing pin, and the other end is provided with clamping mouth 31 With projection 32；As shown in figure 8, clamping mouth 31 is corresponding with main mould mouth 41 with being combined into tube clip mouth 16；Projection 32 and stopper slot 42 is corresponding；The setting of this utility model slope block 43 can make clamping 3 be gradually increasing during pipe fitting is clamped, unclamp pipe fitting During be gradually reduced, so as to effectively get around processed pipe fitting, solve interference problem, while solving many bending sides of processing To the problem that pipe fitting during pipe fitting is interfered with clamping；

Clamping 3 is provided with Horizontal limiting step 33 and vertical limited step 34 with one end that clamping seat 11 is connected；Clamping seat The end face of one end of 11 setting clamping fixing grooves 111 includes upper surface 113 and lower surface 114；As shown in fig. 6, Horizontal limiting platform Rank 33 is corresponding with upper surface 113, as shown in figure 8, when clamping 3 is matched for clamping tightly pipe fitting with main mould 4, Horizontal limiting step 33 with it is upper End face 113 is bonded to each other can to limit clamping 3 further causes clamped pipe fitting deformation toward rising, although projection 32 with it is spacing Groove 22 can effectively prevent the further past rising of clamping 3, but more safe and reliable in the case of dual fail-safe；As shown in figure 8, hanging down Straight limited step 34 is corresponding with lower surface 114, as shown in fig. 7, when clamping 3 drops to position shown in Fig. 6, clamping 3 itself Weight can make which have continuation downward trend, and now vertically limited step 34 is bonded to each other with lower surface 114 effectively can prevent Clamping 3 continue decline, so that it is guaranteed that clamping 3 again next time rise when projection 32 can smoothly climb up slope block 23；

As shown in fig. 7,32 bottom of projection is arc surface；Block 43 upper surface in slope includes horizontal segment 431 from top to bottom successively, climbs Rise section 432 and enter slope section 433；Horizontal segment 431 and plane-parallel；Section of climbing 432 is more than into slope section 433 with the angle of horizontal plane With the angle of horizontal plane, the effect for so arranging is that 32 lower surface of projection is set to arc surface, enters slope section 433 last on slope block 43 End is set to arc surface corresponding with 32 lower surface of projection, so that it is guaranteed that projection 32 can smoothly climb up slope when clamping 3 rises again Block 43, section of climbing 432 are more than into slope section 433 and the angle of horizontal plane with the angle of horizontal plane, can make raising speed in 3 early stage of clamping Degree is very fast, improves work efficiency, and later stage speed is reduced, there is provided stability, reduces impact；The setting of horizontal segment 431 is made in clamping 3 Clamping mouth 31 can be combined with main mould mouth 41 in the horizontal direction, solve traditional clamping in clamping pipe fitting in a flash because torsion Make the problem of tube surface scratch or deformation.

A kind of using method of wound form drawing heading pipe bender：This device is made first in state as shown in Figure 10, this When clamping 3 and clamping seat 11 peak be below the minimum point of main mould mouth 41, be easy to pipe fitting is attached in main mould mouth 41, manage Part makes pipe fitting outer wall be adjacent to the inwall of main mould mouth 41 after being attached in main mould mouth 41, using binder guide rail mould 5 as shown in fig. 1 With 6 clamping and positioning pipe fitting of heading mechanism；Then start oil cylinder 151, as is illustrated by figs. 11 and 12, the piston rod elongation of oil cylinder 151, Promote dynamic connecting rod 153 and determine connecting rod 152 and gradually tend to level, move 153 Jing slips handss of connecting rod 132 and slide block 13 is promoted in take-up housing 14 On to 21 direction of main mould seat slide；Clamping 3 is creeped along slope block 43 upwards by its projection 32, sequentially passes through into slope section 433, climbs Section 432 and horizontal segment 431, final projection 32 horizontally enter into stopper slot 42, and clamping mouth 31 is clamped and installed in master in the horizontal direction Pipe fitting in die orifice 41；Projection 32 can be accurately positioned clamping 3 with the cooperation of stopper slot 42 and rise to horizontal level tailing edge level Direction clamps pipe fitting, but if clamping force is excessive, projection 32 or stopper slot 42 are risk of damage to, now Horizontal limiting step 33 is bonded to each other with upper surface 113, can further ensure that clamping 3 no longer rises after rising to horizontal level, clamps pipe fitting It is reliable；It is after pipe fitting is gripped, synchronous to drive main mould seat gear 24 and support gear 23, make both and rotated with same angular velocity, So as to drive clamping device and main mould resetting means synchronous rotary respectively, at the same time, heading mechanism 6 gives pipe fitting one to main mould The power that 4 directions promote, pipe fitting are curved processing；Pipe fitting is bent to required angle, is again started up oil cylinder 151, now its work Stopper rod shrinks, with 15 action of above-mentioned slider-actuated conversely, realizing that clamping 3 is separated with main mould 4, while link raised 131 and main mould Linkage groove 211 is also separated, and clamping device is resetted under the effect of support gear 23 in advance, and adjustment pipe fitting is to next station, then drives Dynamic main mould seat gear 24, realizes 4 individual reset of main mould.

Main mould resetting means is set in the present embodiment and can realize 4 individual reset function of main mould, the function is advantageous in that, Even if being provided without clamping device of the present utility model or sunk type clamping mold of the prior art, the replacing of pipe fitting will not be received To the interference of clamping seat, thus in the present embodiment, though clamping device damage, producer when original-pack clamping device is changed without according to Can so realize solving the problems, such as that pipe fitting is interfered with clamping seat, this utility model is multi-functional and flexible so as to improve, and gives Production saves cost.

Embodiment 2

A kind of wound form drawing heading pipe bender, it is substantially the same manner as Example 1, except that：13 upper surface of slide block is leaned on The side of nearly main mould 4 arranges track, and opposite side is then provided with T-slot；As shown in Fig. 5 or Figure 11, clamping seat 11 is arranged on track On, and fixed by tight fixed bolt 116, clamping positioning seat 12 is provided with T-slot, and is fixed by tight fixed bolt 121；As schemed Shown in 5, the one end on clamping seat 11 near main mould 4 is provided with clamping fixing groove 111, and clamping 3 is rotatably disposed in by bearing pin In clamping fixing groove 111,11 other end of clamping seat is provided with clamping regulating rod 112,112 one end of clamping regulating rod and clamping seat 11 End-face helical connection, the other end contacted with clamping positioning seat 12, is provided with clamping fine-tuning nut 115 on clamping regulating rod 112.

In the present embodiment, relative embodiment 1 is additionally arranged 3 stroke adjustment function of clamping, when the pipe fitting diameter processed becomes During change, need by changing clamping 3 and main mould 4 to adapt to pipe fitting diameter, pipe fitting diameter becomes big, and the position of clamping 3 is relative Main mould 4 is adjusted backward, as shown in figure 5, unclamping tight fixed bolt 116 first, unclamps clamping fine-tuning nut 115, and artificial rotation clamping is micro- Bar 112 is adjusted, as clamping regulating rod 112 is connected with the end-face helical of clamping seat 11, so during rotation clamping regulating rod 112, folder Die holder 11 can be moved along track, so as to adjust clamping seat 11 to appropriate location, then tighten clamping fine-tuning nut 115 and tight fixed bolt 116；When above-mentioned adjustment can not still meet to be required, tight fixed bolt 121, position of the adjustment clamping positioning seat 12 in T-slot is unclamped Put, so as to further increase or reduce the position adjustment range of clamping seat 11, required with the stroke adjustment for meeting clamping 3.

Claims (9)

1. a kind of wound form drawing heading pipe bender, including clamping device (1), clamping (3) and main mould (4), it is characterised in that： Described clamping device (1) includes clamping seat (11), slide block (13), take-up housing (14) and slider-actuated (15), described slide block Seat (14) upper surface is provided with slide rail, and described slide block (13) is arranged on described slide rail；Described slider-actuated (15) with Described slide block (13) connection；Described clamping seat (11) is fixedly installed on described slide block (13)；Described clamping (3) is led to Cross bearing pin to be rotatably disposed on clamping seat (11) near one end of main mould (4)；Described main mould (4) lower end is right with clamping (3) The side answered is provided with slope block (43)；Also include main mould resetting means (2)；Described main mould resetting means (2) includes main mould Frame (22), support gear (23) and main mould seat gear (24)；On main mould seat (21), position corresponding with described slope block (43) sets It is equipped with main mould linkage groove (211)；Described main mould seat (21) is rotatably disposed on main mould support (22)；Described main mould support (22) it is fixedly connected with described take-up housing (14)；Towards main mould linkage groove on main mould seat (21) on described slide block (13) (211) it is raised (131) that one end is provided with linkage.

2. a kind of wound form drawing heading pipe bender according to claim 1, it is characterised in that：Under described main mould (4) End to arrange and be provided with stopper slot (42) above slope block (43) side；Under described clamping (3) one side relative with main mould (4) End is provided with projection (32), and described projection (32) is corresponding with stopper slot (42).

3. a kind of wound form drawing heading pipe bender according to claim 2, it is characterised in that：Described clamping (3) with One end that clamping seat (11) connects is provided with Horizontal limiting step (33) and vertical limited step (34)；Described clamping seat (11) End face include upper surface (113) and lower surface (114)；Described Horizontal limiting step (33) is corresponding with upper surface (113), institute The vertical limited step (34) stated is corresponding with lower surface (114).

4. a kind of wound form drawing heading pipe bender according to claim 2, it is characterised in that：On described slope block (43) Surface includes horizontal segment (431), section of climbing (432) from top to bottom successively and enters slope section (433)；Described horizontal segment (431) with Plane-parallel；Described section of climbing (432) is more than the angle into slope section (433) with horizontal plane with the angle of horizontal plane.

5. a kind of wound form drawing heading pipe bender according to claim 4, it is characterised in that：Described projection (32) bottom Portion is arc surface；Described slope section (433) the end upper surface that enters is set to arc surface.

6. a kind of wound form drawing heading pipe bender according to claim 1-5 any one, it is characterised in that：Described Its slide rail direction is provided with sliding eye (141) in the middle part of take-up housing (14), is provided with away from one end lower surface of main mould seat (21) Fixed handss (142)；Described slide block (13) bottom is provided with slip handss (132)；Described slip handss (132) pass through sliding eye (141)；Described slider-actuated (15) includes oil cylinder (151), determines connecting rod (152) and dynamic connecting rod (153)；Described determines connecting rod (152) one end is connected by bearing pin with the piston rod of oil cylinder (151), and the other end is connected by bearing pin with fixed handss (142)；It is described Dynamic connecting rod (153) one end be connected by bearing pin with the piston rod of oil cylinder (151), the other end and slip handss (132) pass through bearing pin Connection.

7. a kind of wound form drawing heading pipe bender according to claim 1-5 any one, it is characterised in that：Described Slide block (13) upper surface arranges track, and described clamping seat (11) is arranged on described track, and passes through tight fixed bolt (116) It is fixed；Described slide block (13) upper surface arranges T-slot, is provided with clamping positioning seat (12) in described T-slot, and by tight Determine bolt (121) fixed；Be provided with clamping regulating rod (112) on described clamping seat (11), clamping regulating rod (112) one end with The end-face helical connection of described clamping seat (11), the other end are contacted with described clamping positioning seat (12).

8. a kind of wound form drawing heading pipe bender according to claim 7, it is characterised in that：Described clamping regulating rod (112) clamping fine-tuning nut (115) is provided with.

9. a kind of wound form drawing heading pipe bender according to claim 1, it is characterised in that：Described main mould support (22) it is hollow structure；Described main mould seat (21) upper end is connected with described main mould support (22) upper end spherical bearing, and lower end is worn Cross main mould support (22) to be fixedly connected with described main mould seat gear (24)；Described main mould seat gear (24) and main mould support (22) connected by bearing；Described main mould support (22) outer wall is provided with support gear (23).