CN105522021A - Double-headed pipe bending machine - Google Patents

Double-headed pipe bending machine Download PDF

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Publication number
CN105522021A
CN105522021A CN201610061856.9A CN201610061856A CN105522021A CN 105522021 A CN105522021 A CN 105522021A CN 201610061856 A CN201610061856 A CN 201610061856A CN 105522021 A CN105522021 A CN 105522021A
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CN
China
Prior art keywords
clamping
die
slide block
matched moulds
main shaft
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610061856.9A
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Chinese (zh)
Inventor
杨孙涛
李萍
孙国兴
孙萍萍
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ZHANGJIAGANG XINGYU MACHINERY MANUFACTURING CO LTD
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ZHANGJIAGANG XINGYU MACHINERY MANUFACTURING CO LTD
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Application filed by ZHANGJIAGANG XINGYU MACHINERY MANUFACTURING CO LTD filed Critical ZHANGJIAGANG XINGYU MACHINERY MANUFACTURING CO LTD
Priority to CN201610061856.9A priority Critical patent/CN105522021A/en
Publication of CN105522021A publication Critical patent/CN105522021A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00Bending rods, profiles, or tubes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00Feeding, 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
    • B21D43/003Positioning devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00Bending rods, profiles, or tubes
    • B21D7/16Auxiliary equipment, e.g. for heating or cooling of bends

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

The invention discloses a double-headed pipe bending machine and belongs to the field of pipe bending machines. The double-headed pipe bending machine comprises a machine frame. A guide rail is arranged on the machine frame. A left machine base and a right machine base are arranged on the guide rail, and at least one machine base can move leftwards and rightwards along the guide rail. The two machine bases are each provided with a pipe-bending forming mechanism. The two pipe-bending forming mechanisms are of the same structure and bilaterally symmetrical. According to the structure of each pipe-bending forming mechanism, a main shaft is horizontally arranged in the corresponding machine base, a main driving mechanism and a pipe bending arm are arranged on the main shaft, a die rotating shaft is arranged in the main shaft, the die rotating shaft and the main shaft are connected through a bearing, a bending die is arranged at the front end of the die rotating shaft, and a clamping die is arranged below the bending die; a die assembly driving mechanism and a sliding rail are arranged on the pipe bending arm, a sliding block is arranged in the sliding rail, the two sides of the sliding block are connected with the die assembly driving mechanism and a die assembly adjustment component respectively, and the die assembly adjustment component is connected with the clamping die. Two positions to be bent of a pipe can be bent through the two pipe-bending forming mechanisms respectively. The double-headed pipe bending machine has the advantage that the two positions of the pipe can be bent and formed only through one-time clamping.

Description

Double-headed tube bender
Technical field
The present invention relates to the bending machine for carrying out brake forming to tubing.
Background technology
Bending machine is process equipment tubing being carried out to brake forming, a kind of single head bending machine of normal employing at present, the structure of single head bending machine comprises: workbench, in workbench, expansion bearing has main shaft, main shaft is that vertical direction is arranged, and main shaft upper end is provided with bending pipe arm, and main shaft fixed sleeves is provided with main drive gear, on main drive gear, engagement is provided with main driven wheel, and main driven wheel is arranged on the output revolving shaft of mair motor.Under the driving effect of mair motor, main shaft can rotate and drive bending pipe arm to rotate.Revolving die axle is provided with in main shaft, main shaft is all stretched out in the two ends up and down of revolving die axle, the upper end of revolving die axle is provided with wheel mould, wheel mould is provided with wheel model cavity, the lower end fixed cover of revolving die axle is provided with demoulding travelling gear, on demoulding travelling gear, engagement is provided with demoulding driven wheel, and demoulding driven wheel is arranged on the output revolving shaft of demoulding motor.Revolving die axle is connected by bearing with between main shaft, thus revolving die axle and main shaft are independently rotated and non-interference, and under the driving effect of demoulding motor, revolving die axle can rotate and only driven wheel mould rotates and bending pipe arm can not be driven to rotate.Bending pipe arm is installed with oil cylinder, and the outer end of the piston rod of oil cylinder is fixedly connected with clamping, clamping is provided with and the clamping die cavity of taking turns mould and matching.After starting oil cylinder, the piston rod of oil cylinder can drive clamping to move around in the horizontal direction thus make clamping mutually clamp matched moulds with wheel mould or be separated from each other.
During work, before operating personnel need stand on workbench, hand-held tubing to be curved and make the proper site of tubing to be curved rest on wheel mould on wheel model cavity in, then oil cylinder is started, the piston rod of oil cylinder promotes clamping and makes clamping and the mutual matched moulds of wheel mould, thus tubing to be curved treated that bend pipe position is clamped in wheel model cavity and clamping die cavity.Then, start mair motor, mair motor drive shaft rotates thus drives bending pipe arm synchronous rotary, and now clamping rotates around wheel mould thus treats bend pipe material carries out bend pipe.After tubing to be curved is curved to proper angle, reverse starting oil cylinder, the piston rod of oil cylinder makes clamping be separated from each other with wheel mould thus unclamp tubing.Now bending tubing can be buckled in wheel model cavity, is only difficult to make to deviate from tubing trailing wheel model cavity with manpower, so must start demoulding motor, demoulding motor belt motor driving wheel mould rotates, and makes to be buckled in the tubing demoulding in wheel model cavity.
There is following shortcoming in the single head bending machine of said structure: one, can only treat that forming elbow is carried out in bend pipe position to of tubing by after accurate for tubing clamping at every turn, if want shaping for the bending two ends of tubing or want the bending two ends of tubing to become symmetrical shape, then need first tubing to be carried out first time accurately clamping, to first of tubing after forming elbow is carried out in bend pipe position, make the tubing demoulding again and unload tubing, and mould and the recovery such as clamping and bending pipe arm reset will be taken turns, and then tubing is carried out second time accurately clamping, then could treat that forming elbow processing is carried out in bend pipe position to second of tubing.Visible, the process utilizing the single head bending machine of said structure to carry out forming elbow to the two ends of same tubing is very loaded down with trivial details, and production efficiency is lower; Two, wheel model cavity and clamping die cavity are oppositely arranged in level on left and right direction, tubing to be curved so just cannot naturally be placed in wheel model cavity or clamping die cavity under the effect of self gravitation, so before clamping clamps matched moulds mutually with wheel mould, need the hand-held tubing to be curved of operating personnel and make the side of tubing to be curved rest in wheel model cavity, when so just can guarantee clamping and the wheel mutual matched moulds of mould, tubing to be curved can be clamped in wheel model cavity and clamping die cavity, and this causes the clipping operation of tubing more loaded down with trivial details.In addition, hand-held by operating personnel owing to needing when clamping tubing to be curved, so be also not suitable for offering multipair die cavity in clamping and wheel mould, namely above-mentioned traditional single head bending machine inconvenience carries out brake forming to many tubing simultaneously, and this causes production efficiency low; Three, clamping is directly connected with the piston rod of oil cylinder, and when clamping matched moulds mutual to wheel mould, piston rod need bear very large active force, easily causes piston rod to damage in the use procedure of reality.In addition, the displacement of clamping is determined by the distance of stretch out and draw back of the piston rod of oil cylinder completely, when needing the tubing larger to some calibers to add man-hour, can only the length of eye-bolt shaft, but this also makes piston rod be more prone to damage, and adds maintenance cost; Three, in use inevitably there is the situation that oil liquid temperature rising makes fluid volumetric expansion in in-oil cylinder fluid, then there will be again oil liquid temperature reduce when wintry weather cold and cause the situation of fluid volume-diminished, these all can cause the displacement generation error of clamping when matched moulds, easily there is the phenomenon that matched moulds is too tight or too loose, matched moulds tension can cause clamping and the damage taking turns mould, matched moulds crosses pine then cannot clamp tubing again, thus can affect the quality of bend pipe.
Summary of the invention
The technical problem of solution required for the present invention is: provide a kind of the double-headed tube bender needing clamped one time just can carry out bend pipe to the two ends of tubing, simultaneously, this double-headed tube bender can also clamp tubing to be curved easily, by regulating the installation site of clamping thus guaranteeing that die-closed position is accurate, and active force suffered by cylinder piston rod when effectively can reduce matched moulds.
For solving the problem, the technical solution used in the present invention is: double-headed tube bender, comprise: frame, frame is provided with guide rail, frame is also provided with left and right two supports along guide rail, and at least one support can move left and right along guide rail thus change the distance between two supports, between the support that can move left and right and frame, be provided with the control detent mechanism that this support can be controlled to be positioned in frame, on a left side, right two supports are respectively arranged with a forming elbow mechanism, left, the structure of You Liangge forming elbow mechanism is identical and in left, the right side is symmetrical arranged, the concrete structure of each forming elbow mechanism comprises: in support, expansion bearing has main shaft, main shaft is that horizontal direction is arranged, main shaft is provided with main driving mechanism, front-end of spindle is provided with bending pipe arm, under the effect of main driving mechanism, main shaft can rotate around its center axis thus drive bending pipe arm synchronous rotary, the revolving die axle with main shaft concentric is provided with in main shaft, main shaft is all stretched out in the rear and front end of revolving die axle, be interconnected by bearing between revolving die axle and main shaft, revolving die axle front end is provided with wheel mould, wheel mould is provided with upper impression, be provided with and the clamping taken turns mould and match below wheel mould, clamping is provided with the lower impressions of cooperation corresponding with upper impression, revolving die shaft rear end is provided with demoulding driving mechanism, under the effect of demoulding driving mechanism, revolving die axle can rotate thus driven wheel mould synchronous rotary around its center axis, bending pipe arm is provided with matched moulds driving mechanism and slide rail, the slide block that can move around along slide rail is provided with in slide rail, slide block side is connected with matched moulds driving mechanism, the opposite side of slide block is provided with the matched moulds adjusting part for regulating spacing between clamping and wheel mould, matched moulds adjusting part is connected with clamping, starts matched moulds driving mechanism and movable slider can be with to move around along slide rail thus make clamping mutually clamp matched moulds with wheel mould or be separated from each other, wheel mould in left and right Liang Ge forming elbow mechanism and clamping two of can clamp respectively on same tubing treat bend pipe position, thus make left and right Liang Ge forming elbow mechanism can treat that brake forming processing is carried out in bend pipe position to two of this tubing respectively.
Further, aforesaid double-headed tube bender, wherein: described main driving mechanism comprises: fixed cover is located at the gear wheel on main shaft, on gear wheel, engagement is provided with the bend pipe tooth bar matched, the end of bend pipe tooth bar is connected with the piston rod of master cylinder, master cylinder is arranged in support, and master cylinder makes bull gear drive by dragging bend pipe tooth bar thus drives spindle synchronous to rotate.
Further, aforesaid double-headed tube bender, wherein: described demoulding driving mechanism comprises: fixed cover is located at the pinion of revolving die shaft rear end, on pinion, engagement is provided with the revolving die tooth bar matched, the tail end of revolving die tooth bar is connected with the piston rod of revolving die oil cylinder, revolving die oil cylinder is arranged in support, and revolving die oil cylinder rotates by revolving die rack drives pinion thus drives revolving die axle synchronous rotary, thus driven wheel mould synchronous rotary.
Further; aforesaid double-headed tube bender; wherein: the concrete structure of described matched moulds driving mechanism comprises: be fixedly installed in the die cylinder on bending pipe arm; the piston rod of die cylinder is provided with linkage; linkage is connected with slide block, die cylinder by linkage band movable slider along slide rail move around thus make clamping with wheel mould mutually clamp matched moulds or be separated from each other.
Further, aforesaid double-headed tube bender, wherein: the concrete structure of described linkage comprises: interconnective two orifice plates and three orifice plates, described two orifice plates are strip, three angles of described three orifice plates are respectively provided with a through hole: be respectively a hole, two holes, three holes, one end and the slide block of two orifice plates are hinged, the other end of two orifice plates and a hole of three orifice plates are hinged, three orifice plates are hinged on bending pipe arm by two holes, three orifice plates are also hinged by the termination of three holes and piston rod, when three hole of piston rod upwards pushing tow three orifice plate of die cylinder, three orifice plates rotate around two holes, and by hole outside pushing tow two orifice plate, while making the bottom of two orifice plates close towards slide block, the top of two orifice plates upwards pushing tow slide block and moves together, thus make clamping close to wheel mould, until the bottom of two orifice plates is resisted against when cannot be rotated further inside slide block, clamping clamps mutually with wheel mould just.
Further, aforesaid double-headed tube bender, wherein: the concrete structure of described matched moulds adjusting part comprises: be installed on the die sleeve on slide block, die sleeve groove is provided with in die sleeve, described clamping is installed in die sleeve, and clamping can be moved along die sleeve groove in bend pipe process, back-moving spring is provided with between described clamping and die sleeve, back-moving spring can make under external force along clamping homing after losing External Force Acting that die sleeve groove slides, described slide block is provided with slide block slot, die sleeve is arranged in slide block slot ordinatedly, die sleeve can move along slide block slot thus near or away from wheel mould, be provided with bottom die sleeve can rotate freely but can not with the adjusting screw(rod) of die sleeve generation axial displacement, bearing is regulated to be fixed on slide block, the lower end of adjusting screw(rod) is connected in the tapped through hole regulated in bearing by threaded engagement, adjusting screw(rod) is also provided with the nut that adjusting screw(rod) can be locked at and regulate on bearing.
Further, aforesaid double-headed tube bender, wherein: be also respectively arranged with one in left and right Liang Ge forming elbow mechanism for clamping the auxiliary clamping device of tubing, the identical and symmetrical setting of the structure of left and right two auxiliary clamping devices.
Further, aforesaid double-headed tube bender, wherein: each auxiliary clamping device comprises: the clamping support being fixed on support front end, clamping support is provided with trip holder, and the two ends up and down of trip holder are fixedly installed clamping patrix and clamping cylinder respectively, the piston rod of clamping cylinder are provided with clamping counterdie, under the effect of clamping cylinder, clamping counterdie can mutually clamp matched moulds with clamping patrix or be separated from each other, and clamping patrix is provided with upper fastening groove, and clamping counterdie is provided with lower fastening groove; When the driving effect of clamping cylinder makes clamping counterdie and clamping patrix mutually clamps matched moulds, the clamping die cavity that lower impressions and the upper impression of taking turns mould of the holding tank that the upper fastening groove on the lower fastening groove on clamping counterdie and clamping patrix is formed and clamping when mutually clamp matched moulds are formed aligns.
Further, aforesaid double-headed tube bender, wherein: described control detent mechanism comprises: be arranged on the saddle on guide rail, spirit of living is provided with bottom saddle, be provided with ball-screw in frame, threaded engagement of having quick access to information alive is arranged on ball-screw, and support is fixedly mounted on saddle, rotation ball leading screw drives saddle to move around along guide rail by spirit of living, and after the ball-screw that stops operating, saddle then can maintain static.
Further, aforesaid double-headed tube bender, wherein: on guide rail, be provided with rule, rule can be used for measuring the distance between left and right two supports.
The invention has the beneficial effects as follows: one, left and right Liang Ge forming elbow mechanism is set, only need clamped one time, just can treat that brake forming is carried out in bend pipe position to two of tubing, need after this eliminating a bend pipe wheel mould, clamping and bending pipe arm etc. to be recovered reset and tubing need be carried out the operations such as the accurate clamping of second time, thus can effectively enhance productivity.And, if need the bending two ends of tubing to become symmetrical shape, only need the shape of the wheel mould in left and right Liang Ge forming elbow mechanism and clamping and size are consistent, very convenient; Two, the wheel upper impression of mould and the lower impressions of clamping are upper and lower being oppositely arranged, so tubing to be curved can naturally be placed in the lower impressions of clamping and not come off, grip tubing to be curved when clamping tubing without the need to operating personnel, easy to operate; And, do not need artificial gripping due to during clamping tubing, therefore just can offer multipair clamping die cavity according to Production requirement on wheel mould and clamping, thus can realize carrying out forming elbow to many tubing simultaneously, significantly can promote operating efficiency; Three, be provided with auxiliary clamping device, tubing can be prevented to be moved in the process of brake forming, this can ensure the Forming Quality of tubing further; Four, by the link transmission effect of two orifice plates, three orifice plates, effectively reduce the active force born needed for piston rod in matched moulds process on the one hand, the length of piston rod can be shortened again on the other hand.These all make piston rod more durable, thus reduce the maintenance cost of piston rod, also extend the service life of product simultaneously; The displacement deviation that five, can produce when hydraulic oil liquid volume changes by regulating the initial distance between clamping and wheel mould to eliminate clamping, guaranteeing between clamping and wheel mould can accurate matched moulds thus clamp tubing, to guarantee bending quality further.
Accompanying drawing explanation
Fig. 1 is the structural representation of double-headed tube bender of the present invention.
Fig. 2 is A-A sectional structure schematic diagram in Fig. 1.
Fig. 3 be in Fig. 2 clamping with wheel mould be separated after view.
Fig. 4 is the mounting structure schematic diagram between the die sleeve of Tu1Zhong You forming elbow mechanism and slide block.
Fig. 5 is the structural representation of the rear apparent direction of Tu1Zhong You forming elbow mechanism and support.
Detailed description of the invention
Below in conjunction with accompanying drawing and preferred embodiment, technical solutions according to the invention are described in further detail.
As shown in Figure 1, Figure 2, Figure 3 shows, double-headed tube bender, comprise: frame 25, frame 25 is provided with guide rail 26, frame 25 is also provided with right two supports 15 of a first from left along guide rail 26, the support 15 on the left side is fixedly mounted in frame 25 by bolt 39, and the support 15 on the right can move left and right along guide rail 26 thus change the distance between two supports 15.And, be provided with the control detent mechanism 34 that this support 15 can be controlled to be positioned in frame 25 between support 15 on the right and frame 25.In the present embodiment, described control detent mechanism 34 comprises: be movably set in the saddle 341 on guide rail 26, spirit 342 of living is provided with bottom saddle 341, ball-screw 343 is provided with in frame 25, spirit 342 of living is arranged on ball-screw 343 by threaded engagement, be connected with handle 344 after the protruding frame 25 of the other end of ball-screw 343, support 15 is fixedly mounted on saddle 341, turning handle 344 drives saddle 341 to move around along guide rail 26 by spirit 342 of living, the rear saddle 341 of the ball-screw 343 that stops operating can keep maintaining static, thus the support 15 on the right is fixed on the current location of frame 25.In the present embodiment, guide rail 26 is provided with rule 38, rule 38 can be used for measuring the distance between left and right two supports 15.
As shown in Figure 1, Figure 2, Figure 3 shows, left and right two supports 15 are respectively arranged with a forming elbow mechanism 1, the structure of left and right Liang Ge forming elbow mechanism 1 is identical and be symmetrical arranged in left and right.For the forming elbow mechanism 1 on the right, its structure is specifically described below, the concrete structure of the forming elbow mechanism 1 on the right comprises: in support 15 on the right, expansion bearing has main shaft 16, main shaft 16 is horizontal direction setting, main shaft 16 is provided with main driving mechanism 2, main shaft 16 front end is provided with bending pipe arm 11, under the effect of main driving mechanism 2, main shaft 16 can rotate around its center axis thus drive bending pipe arm 11 synchronous rotary.In the present embodiment, described main driving mechanism 2 comprises: fixed cover is located at the gear wheel 21 on main shaft 16, on gear wheel 21, engagement is provided with the bend pipe tooth bar 22 matched, the large tooth bar wedge 23 that bend pipe tooth bar 22 back side is installed in the support 15 on the right compressed, large tooth bar wedge 23 can be guaranteed to closely cooperate between gear wheel 21 and bend pipe tooth bar 22, the end of bend pipe tooth bar 22 is connected with the piston rod 241 of master cylinder 24, master cylinder 24 fixedly mounts in support 15 on the right, master cylinder 24 makes gear wheel 21 rotate by dragging bend pipe tooth bar 22 thus drives main shaft 16 synchronous rotary.
As shown in Figure 2 and Figure 3, be movably set with in main shaft 16 one with the revolving die axle 17 of main shaft 16 concentric, the rear and front end of revolving die axle 17 stretches out the rear and front end of main shaft 16 respectively, be interconnected by bearing between revolving die axle 17 and main shaft 16, thus revolving die axle 17 and main shaft 16 independently can be rotated and do not influence each other and interfere.The bearing adopted between described revolving die axle 17 and main shaft 16 is macromolecular material bearing, is specially copper graphite bearing, and copper graphite bearing is a kind of Nonlubricated bearing, makes can closely cooperate between revolving die axle 17 and main shaft 16, and don't the interference that influences each other.
As shown in Figure 1, Figure 2, Figure 3 shows, revolving die axle 17 front end is provided with wheel mould 5, and wheel mould 5 passes through and cap 18 is fixedly mounted on revolving die axle 17 front end, makes wheel mould 5 can follow revolving die axle 17 and rotates and do not loosen.Wheel mould 5 is arranged at intervals with two upper impression 51, be provided with and the clamping 6 taken turns mould 5 and match below wheel mould 5, clamping 6 is provided with two lower impressions 61 with the corresponding cooperation of two upper impression 51 difference, revolving die axle 17 rear end is provided with demoulding driving mechanism 3, under the effect of demoulding driving mechanism 3, revolving die axle 17 can rotate thus driven wheel mould 5 synchronous rotary around its center axis.As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 5, in the present embodiment, described demoulding driving mechanism 3 comprises: fixed cover is located at the pinion 31 of revolving die axle 17 rear end, on pinion 31, engagement is provided with the revolving die tooth bar 32 matched, the pinion rack wedge 33 that the back side of revolving die tooth bar 32 is installed in the support 15 on the right compressed, and pinion rack wedge 33 can be guaranteed to closely cooperate between pinion 31 and revolving die tooth bar 32.The tail end of revolving die tooth bar 32 is connected with the piston rod 351 of revolving die oil cylinder 35, revolving die oil cylinder 35 fixedly mounts in support 15 on the right, revolving die oil cylinder 35 drives pinion 31 to rotate by revolving die tooth bar 32 thus drives revolving die axle 17 synchronous rotary, thus driven wheel mould 5 synchronous rotary.
As Fig. 2, shown in Fig. 3, bending pipe arm 11 is provided with matched moulds driving mechanism 7 and slide rail, the slide block 13 that can move around along slide rail is provided with in slide rail, slide block 13 side is connected with matched moulds driving mechanism 7, the opposite side of slide block 13 is provided with the matched moulds adjusting part 9 for regulating spacing size between clamping 6 and wheel mould 5, matched moulds adjusting part 9 is connected with clamping 6, starting matched moulds driving mechanism 7 can be with movable slider 13 move around along slide rail thus make clamping 6 mutually clamp matched moulds with wheel mould 5 or be separated from each other, when clamping 6 clamps mutually with wheel mould 5, two lower impressions 61 of clamping 6 mutually can be docked respectively with two upper impression 51 of wheel mould 5 and form two and clamp die cavity, thus complete matched moulds.
As shown in Figure 2 and Figure 3; in the present embodiment; the concrete structure of described matched moulds driving mechanism 7 comprises: be fixedly installed in the die cylinder 74 on bending pipe arm 11; the piston rod 741 of die cylinder 74 is provided with linkage 71; linkage 71 is connected with slide block 13, and die cylinder 74 is with movable slider 13 to move around along slide rail by linkage 71 thus is made clamping 6 mutually clamp matched moulds with wheel mould 5 or be separated from each other.In the present embodiment, the concrete structure of described linkage 71 comprises: interconnective two orifice plate 72 and three orifice plates 73, described two orifice plates 72 are in strip, described three orifice plate 73 shape triangular in shape and three angles are respectively provided with a through hole: be respectively a hole 733, hole 732, three, hole 731, two, one end and the slide block 13 of two orifice plates 72 are hinged, the other end of two orifice plates 72 and a hole 731 of three orifice plates 73 are hinged, three orifice plates 73 are hinged on bending pipe arm 11 by two holes 732, and three orifice plates 73 are also hinged with the termination of piston rod 741 by three holes 733.The piston rod 741 of die cylinder 74 makes slide block 13 move around in the slide rail of bending pipe arm 11 by the link transmission effect of three orifice plates 73 and two orifice plates 72, thus make the lower impressions 61 of clamping 6 mutually close up and dock with the upper impression 51 of wheel mould 5 or be separated from each other, its detailed process of mutually closing up docking and completing matched moulds is: when three hole 733 of piston rod 741 upwards pushing tow three orifice plate 73 of die cylinder 74, three orifice plates 73 rotate around two holes 732, and by a hole 731 outwards pushing tow two orifice plate 72, while making the bottom of two orifice plates 72 close towards slide block 13, the top of two orifice plates 72 upwards pushing tow slide block 13 and moves together, thus make clamping 6 close to wheel mould 5, until the bottom of two orifice plates 72 is resisted against when cannot be rotated further inside slide block 13, clamping 6 clamps mutually with wheel mould 5 just.
As Fig. 2, Fig. 3, shown in Fig. 4, in the present embodiment, the concrete structure of described matched moulds adjusting part 9 comprises: be installed on the die sleeve 91 on slide block 13, die sleeve groove 92 is provided with in die sleeve 91, described clamping 6 is installed in die sleeve 91, and clamping 6 can be moved along die sleeve groove 92 in bend pipe process, back-moving spring 99 is provided with between described clamping 6 and die sleeve 91, back-moving spring 99 can make under external force along clamping 6 homing after losing External Force Acting that die sleeve groove 92 slides, consider the smooth and easy motion of clamping 6, two roller shafts 93 are embedded with in described die sleeve 91, two roller shafts 93 are respectively arranged with roller 94, the bottom of described clamping 6 contacts with the roller of two in die sleeve 91 94, the resistance to sliding of clamping 6 in die sleeve groove 92 can be reduced like this when bend pipe.Described slide block 13 is provided with slide block slot 131, die sleeve 91 is arranged in slide block slot 131 ordinatedly, die sleeve 91 can move along slide block slot 131 thus near or away from wheel mould 5, be provided with bottom die sleeve 91 and can rotate freely but with die sleeve 91, the adjusting screw(rod) 95 of axial displacement can not occur, bearing 96 is regulated to be fixed on slide block 13, the lower end of adjusting screw(rod) 95 is connected to by threaded engagement in the tapped through hole regulated in bearing 96, and adjusting screw(rod) 95 is also provided with the nut 97 that adjusting screw(rod) 95 can be locked in and regulate on bearing 96.When reality uses, the Volume Changes that can produce according to hydraulic oil temperature influence is carried out flexible modulation die sleeve 91 and is fixed on installation site on slide block 13, thus the initial distance between the upper impression 51 of the lower impressions 61 of adjustment clamping 6 and wheel mould 5, to eliminate when hydraulic oil volume changes, the deviation that clamping 6 displacement produces, thus improve closing precision.
As shown in Figure 1, wheel mould 5 in described left and right Liang Ge forming elbow mechanism 1 and clamping 6 two of can clamp respectively on same tubing treat bend pipe position, thus make left and right Liang Ge forming elbow mechanism 1 can treat that brake forming processing is carried out in bend pipe position to two of this tubing respectively.In the present embodiment, be also respectively arranged with one in left and right Liang Ge forming elbow mechanism 1 for clamping the auxiliary clamping device 8 of tubing, the identical and symmetrical setting of left and right two auxiliary clamping devices 8.For the auxiliary clamping device 8 on the right, its structure is specifically described below, in the present embodiment, the auxiliary clamping device 8 on the right comprises: the clamping support 81 being fixed on support 15 front end on the right, clamping support 81 is provided with trip holder 82, trip holder 82 upper, lower two ends are fixedly installed clamping patrix 83 and clamping cylinder 84 respectively, the piston rod 841 of clamping cylinder 84 is provided with clamping counterdie 85, under the driving effect of clamping cylinder 84, clamping counterdie 85 mutually can clamp matched moulds or be separated from each other with clamping patrix 83, clamping patrix 83 is provided with upper fastening groove, clamping counterdie 85 is provided with lower fastening groove, when the driving effect of clamping cylinder 84 make clamping counterdie 85 and clamping patrix 83 mutually clamping matched moulds time, the holding tank that the upper fastening groove on the lower fastening groove on clamping counterdie 85 and clamping patrix 83 is formed and the lower impressions 61 in the clamping 6 when mutually clamp matched moulds with take turns the clamping die cavity that the upper impression 51 on mould 5 formed and align.That is, when carrying out brake forming to tubing, tubing can by the clamping die cavity that is clamped in left and right Liang Ge forming elbow mechanism 1 and holding tank simultaneously, and this can guarantee only to need clamped one time just can carry out brake forming to the two ends of tubing.And, when the clamping 6 of left and right Liang Ge forming elbow mechanism 1 rotates around corresponding wheel mould 5 respectively, thus to two of tubing when brake forming is carried out in bend pipe position, two auxiliary clamping devices 8 tubing that can jointly be clamped is shifted to prevent tubing, and this can ensure the Forming Quality of tubing further.
Below double-headed tube bender of the present invention is described in detail the method that two of tubing are treated that brake forming is carried out in bend pipe position.
First, treat that the distance between bend pipe position regulates the distance between left and right two supports 15 for two according to tubing, concrete operations are as follows: turning handle 344 drives ball-screw 343 to rotate, ball-screw 343 drives saddles 341 to move on guide rail 26 by spirit 342 of living, thus make the support 15 on the right near or away from the support 15 on the left side.Accurately can observe the real-time distance between left and right two supports 15 according to the rule 38 on guide rail 26 when turning handle 344, until when the distance between left and right two supports 15 meets designing requirement, stop operating handle 344, and the controlled system of support 15 on the right is positioned on the current location of frame 25.This makes it possible to guarantee in ensuing operating process, treat that bend pipe position can be accurately clamped in the clamping die cavity of left and right Liang Ge forming elbow mechanism 1 respectively for two of tubing.
After adjusting the distance between left and right two supports 15, two tubing to be curved can be placed in simultaneously in two lower impressions 61 of the clamping 6 in left and right Liang Ge forming elbow mechanism 1, then start the die cylinder 74 of the matched moulds driving mechanism 7 in left and right Liang Ge forming elbow mechanism 1, bend pipe position is clamped in two clamping die cavities of left and right Liang Ge forming elbow mechanism 1 respectively to make two of two tubing to treat.
Next, start the clamping cylinder 84 in left and right two auxiliary clamping devices 8, the piston rod 841 upwards pushing tow clamping counterdie 85 of clamping cylinder 84, clamping counterdie 85 is close to clamping patrix 83 gradually, until two tubing are clamped in two holding tanks of two auxiliary clamping devices 8 simultaneously.Two auxiliary clamping devices 8 are clamped tubing to be curved jointly, and prevent tubing to be moved in the process of brake forming, this can ensure the Forming Quality of tubing further.Then the master cylinder 24 in left and right Liang Ge forming elbow mechanism 1 is started, master cylinder 24 makes gear wheel 21 rotate forward by promoting bend pipe tooth bar 22 thus drives main shaft 4 to rotate forward, thus bending pipe arm 11 is rotated, clamping 6 now in Liang Ge forming elbow mechanism 1 is rotated around corresponding wheel mould 5 respectively, until treat that bend pipe position bends to predetermined shape respectively by two of two tubing.In above-mentioned brake forming process, clamping 6 can be subject to the friction and Extrusion of wheel mould 5 and tubing and outwards slide along die sleeve groove 92.
After treating that bend pipe position bends to predetermined shape respectively by two of two tubing, die cylinder 74 in reverse starting left and right Liang Ge forming elbow mechanism 1, the piston rod 741 of die cylinder 74 reclaims, make clamping 6 depart from wheel mould 5, now two of two tubing crooked position be buckled in the upper impression 51 of the wheel mould 5 in left and right Liang Ge forming elbow mechanism 1 respectively; In addition, clamping 6 owing to being no longer subject to friction and Extrusion effect, so can under the effect of back-moving spring 99 homing; Finally, start the revolving die oil cylinder 35 in left and right Liang Ge forming elbow mechanism 1, the piston rod 351 of revolving die oil cylinder 35 is by pulling revolving die tooth bar 32 to make pinion 31 reverse thus driving revolving die axle 17 to reverse, thus wheel mould 5 is reversed, two crooked positions be buckled in the upper impression 51 of wheel mould 5 on tubing are come off naturally, handled easily personnel get pipe, so far terminate bend pipe process.
Double-headed tube bender of the present invention has the following advantages: one, arrange left and right Liang Ge forming elbow mechanism, only need clamped one time, just can treat that brake forming is carried out in bend pipe position to two of tubing, need after this eliminating a bend pipe wheel mould, clamping and bending pipe arm etc. to be recovered reset and tubing need be carried out the operations such as the accurate clamping of second time, thus can effectively enhance productivity.And, if need the bending two ends of tubing to become symmetrical shape, only need the shape of the wheel mould in left and right Liang Ge forming elbow mechanism and clamping and size are consistent, very convenient; Two, the wheel upper impression of mould and the lower impressions of clamping are upper and lower being oppositely arranged, so tubing to be curved can naturally be placed in the lower impressions of clamping and not come off, grip tubing to be curved when clamping tubing without the need to operating personnel, easy to operate; And, do not need artificial gripping due to during clamping tubing, therefore just can offer multipair clamping die cavity according to Production requirement on wheel mould and clamping, thus can realize carrying out forming elbow to many tubing simultaneously, significantly can promote operating efficiency; Three, be provided with auxiliary clamping device, tubing can be prevented to be moved in the process of brake forming, this can ensure the Forming Quality of tubing further; Four, by the link transmission effect of two orifice plates, three orifice plates, effectively reduce the active force born needed for piston rod in matched moulds process on the one hand, the length of piston rod can be shortened again on the other hand.These all make piston rod more durable, thus reduce the maintenance cost of piston rod, also extend the service life of product simultaneously; The displacement deviation that five, can produce when hydraulic oil liquid volume changes by regulating the initial distance between clamping and wheel mould to eliminate clamping, guaranteeing between clamping and wheel mould can accurate matched moulds thus clamp tubing, to guarantee bending quality further.

Claims (10)

1. double-headed tube bender, comprise: frame, it is characterized in that: frame is provided with guide rail, frame is also provided with left and right two supports along guide rail, and at least one support can move left and right along guide rail thus change the distance between two supports, between the support that can move left and right and frame, be provided with the control detent mechanism that this support can be controlled to be positioned in frame, on a left side, right two supports are respectively arranged with a forming elbow mechanism, left, the structure of You Liangge forming elbow mechanism is identical and in left, the right side is symmetrical arranged, the concrete structure of each forming elbow mechanism comprises: in support, expansion bearing has main shaft, main shaft is that horizontal direction is arranged, main shaft is provided with main driving mechanism, front-end of spindle is provided with bending pipe arm, under the effect of main driving mechanism, main shaft can rotate around its center axis thus drive bending pipe arm synchronous rotary, the revolving die axle with main shaft concentric is provided with in main shaft, main shaft is all stretched out in the rear and front end of revolving die axle, be interconnected by bearing between revolving die axle and main shaft, revolving die axle front end is provided with wheel mould, wheel mould is provided with upper impression, be provided with and the clamping taken turns mould and match below wheel mould, clamping is provided with the lower impressions of cooperation corresponding with upper impression, revolving die shaft rear end is provided with demoulding driving mechanism, under the effect of demoulding driving mechanism, revolving die axle can rotate thus driven wheel mould synchronous rotary around its center axis, bending pipe arm is provided with matched moulds driving mechanism and slide rail, the slide block that can move around along slide rail is provided with in slide rail, slide block side is connected with matched moulds driving mechanism, the opposite side of slide block is provided with the matched moulds adjusting part for regulating spacing between clamping and wheel mould, matched moulds adjusting part is connected with clamping, starts matched moulds driving mechanism and movable slider can be with to move around along slide rail thus make clamping mutually clamp matched moulds with wheel mould or be separated from each other, wheel mould in left and right Liang Ge forming elbow mechanism and clamping two of can clamp respectively on same tubing treat bend pipe position, thus make left and right Liang Ge forming elbow mechanism can treat that brake forming processing is carried out in bend pipe position to two of this tubing respectively.
2. double-headed tube bender according to claim 1, it is characterized in that: described main driving mechanism comprises: fixed cover is located at the gear wheel on main shaft, on gear wheel, engagement is provided with the bend pipe tooth bar matched, the end of bend pipe tooth bar is connected with the piston rod of master cylinder, master cylinder is arranged in support, and master cylinder makes bull gear drive by dragging bend pipe tooth bar thus drives spindle synchronous to rotate.
3. double-headed tube bender according to claim 1, it is characterized in that: described demoulding driving mechanism comprises: fixed cover is located at the pinion of revolving die shaft rear end, on pinion, engagement is provided with the revolving die tooth bar matched, the tail end of revolving die tooth bar is connected with the piston rod of revolving die oil cylinder, revolving die oil cylinder is arranged in support, revolving die oil cylinder rotates by revolving die rack drives pinion thus drives revolving die axle synchronous rotary, thus driven wheel mould synchronous rotary.
4. the double-headed tube bender according to claim 1 or 2 or 3; it is characterized in that: the concrete structure of described matched moulds driving mechanism comprises: be fixedly installed in the die cylinder on bending pipe arm; the piston rod of die cylinder is provided with linkage; linkage is connected with slide block, die cylinder by linkage band movable slider along slide rail move around thus make clamping with wheel mould mutually clamp matched moulds or be separated from each other.
5. double-headed tube bender according to claim 4, it is characterized in that: the concrete structure of described linkage comprises: interconnective two orifice plates and three orifice plates, described two orifice plates are strip, described three orifice plate shape triangular in shape and three angles are respectively provided with a through hole: be respectively a hole, two holes, three holes, one end and the slide block of two orifice plates are hinged, the other end of two orifice plates and a hole of three orifice plates are hinged, three orifice plates are hinged on bending pipe arm by two holes, three orifice plates are also hinged by the termination of three holes and piston rod, when three hole of piston rod upwards pushing tow three orifice plate of die cylinder, three orifice plates rotate around two holes, and by hole outside pushing tow two orifice plate, while making the bottom of two orifice plates close towards slide block, the top of two orifice plates upwards pushing tow slide block and moves together, thus make clamping close to wheel mould, until the bottom of two orifice plates is resisted against when cannot be rotated further inside slide block, clamping clamps mutually with wheel mould just.
6. the double-headed tube bender according to claim 1 or 2 or 3, it is characterized in that: the concrete structure of described matched moulds adjusting part comprises: be installed on the die sleeve on slide block, die sleeve groove is provided with in die sleeve, described clamping is installed in die sleeve, and clamping can be moved along die sleeve groove in bend pipe process, back-moving spring is provided with between described clamping and die sleeve, back-moving spring can make under external force along clamping homing after losing External Force Acting that die sleeve groove slides, described slide block is provided with slide block slot, die sleeve is arranged in slide block slot ordinatedly, die sleeve can move along slide block slot thus near or away from wheel mould, be provided with bottom die sleeve can rotate freely but can not with the adjusting screw(rod) of die sleeve generation axial displacement, bearing is regulated to be fixed on slide block, the lower end of adjusting screw(rod) is connected in the tapped through hole regulated in bearing by threaded engagement, adjusting screw(rod) is also provided with the nut that adjusting screw(rod) can be locked at and regulate on bearing.
7. the double-headed tube bender according to claim 1 or 2 or 3, it is characterized in that: be also respectively arranged with one in left and right Liang Ge forming elbow mechanism for clamping the auxiliary clamping device of tubing, the identical and symmetrical setting of the structure of left and right two auxiliary clamping devices.
8. double-headed tube bender according to claim 7, it is characterized in that: each auxiliary clamping device comprises: the clamping support being fixed on support front end, clamping support is provided with trip holder, the two ends up and down of trip holder are fixedly installed clamping patrix and clamping cylinder respectively, the piston rod of clamping cylinder is provided with clamping counterdie, under the effect of clamping cylinder, clamping counterdie can mutually clamp matched moulds with clamping patrix or be separated from each other, clamping patrix is provided with upper fastening groove, clamping counterdie is provided with lower fastening groove; When the driving effect of clamping cylinder makes clamping counterdie and clamping patrix mutually clamps matched moulds, the clamping die cavity that lower impressions and the upper impression of taking turns mould of the holding tank that the upper fastening groove on the lower fastening groove on clamping counterdie and clamping patrix is formed and clamping when mutually clamp matched moulds are formed aligns.
9. the double-headed tube bender according to claim 1 or 2 or 3, it is characterized in that: described control detent mechanism comprises: be arranged on the saddle on guide rail, spirit of living is provided with bottom saddle, ball-screw is provided with in frame, threaded engagement of having quick access to information alive is arranged on ball-screw, support is fixedly mounted on saddle, and rotation ball leading screw drives saddle to move around along guide rail by spirit of living, and after the ball-screw that stops operating, saddle then can maintain static.
10. the double-headed tube bender according to claim 1 or 2 or 3, is characterized in that: on guide rail, be provided with rule, and rule can be used for measuring the distance between left and right two supports.
CN201610061856.9A 2016-01-29 2016-01-29 Double-headed pipe bending machine Pending CN105522021A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107159759A (en) * 2017-07-13 2017-09-15 张家港市宇昇机械有限公司 A kind of bending machine
CN107570563A (en) * 2017-09-04 2018-01-12 扬州天开机电有限公司 A kind of bend pipe unit head for bending 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
CN108160779A (en) * 2017-12-28 2018-06-15 佛山市圆美机械有限公司 Efficient bending machine
CN108246913A (en) * 2018-01-25 2018-07-06 张家港市宇昇机械有限公司 A kind of bending machine
CN108273886A (en) * 2018-02-27 2018-07-13 安徽盛运重工机械有限责任公司 The one-pass molding of steel elbow makes tooling
CN108273927A (en) * 2018-01-25 2018-07-13 宁波世嘉嘉辰机械有限公司 A kind of automatic bend pipe molding machine for carrying cart handle handrail
CN108326090A (en) * 2018-01-31 2018-07-27 江苏合丰机械制造有限公司 A kind of forward and reverse angle pipe equipment
CN108555164A (en) * 2018-01-25 2018-09-21 张家港市宇昇机械有限公司 A kind of expanding device for bending machine
CN108772451A (en) * 2018-07-03 2018-11-09 张家港市友胜机械制造有限公司 Upper and lower curved New Type Bending Pipe Unit
CN108787819A (en) * 2018-09-13 2018-11-13 张家港市蓝田管业设备有限公司 A kind of multidirectional bending machine
CN108787822A (en) * 2018-07-03 2018-11-13 张家港市友胜机械制造有限公司 Auxiliary pushing-type New Type Bending Pipe Unit
CN108856389A (en) * 2018-07-17 2018-11-23 重庆祥越管道配件制造有限公司 Pipe fitting bends antifriction equipment
CN109047412A (en) * 2018-10-10 2018-12-21 四川丹甫环境科技有限公司 It is a kind of for molding equipment of the U-shaped noise reduction of compressor across pipe
CN109226383A (en) * 2018-11-19 2019-01-18 赵伟 A kind of adjustable high-efficiency bending machine
CN111822561A (en) * 2019-05-14 2020-10-27 哈尔滨工业大学 Section bar or bar die-free hot bending forming follow-up bending device and using method
CN113319165A (en) * 2021-05-12 2021-08-31 张家港市新中和精工机械制造有限公司 Novel pipe bender aircraft nose
CN113680864A (en) * 2021-08-17 2021-11-23 上海发那科机器人有限公司 Full-servo double-single-head robot pipe bending machine
CN114393156A (en) * 2022-02-14 2022-04-26 浙江梦神家居股份有限公司 Special-shaped spring bending machine
CN114472632A (en) * 2022-02-17 2022-05-13 新昌县长城空调部件股份有限公司 Method for processing arc gas pipe
CN115971298A (en) * 2022-12-14 2023-04-18 杭州格科机械有限公司 Bending device for metal pipeline machining

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CN101628305A (en) * 2009-08-20 2010-01-20 张家港市明华机械制造有限公司 Special pipe bender of chain frame
CN201644577U (en) * 2010-02-01 2010-11-24 张家港市明华机械制造有限公司 Vertical type pipe bender
CN202741510U (en) * 2012-03-29 2013-02-20 张家港市恒利达机械有限公司 Full-automatic double-head pipe bending machine
CN204996887U (en) * 2015-08-13 2016-01-27 深圳市通力机械技术有限公司 90 degree hydraulic pressure double -headed tube bender
CN205463761U (en) * 2016-01-29 2016-08-17 张家港兴宇机械制造有限公司 Double -headed tube bender

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CN107159759B (en) * 2017-07-13 2023-06-02 张家港市宇昇机械有限公司 Pipe bending machine
CN107159759A (en) * 2017-07-13 2017-09-15 张家港市宇昇机械有限公司 A kind of bending machine
CN107570563A (en) * 2017-09-04 2018-01-12 扬州天开机电有限公司 A kind of bend pipe unit head for bending 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
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
CN108160779A (en) * 2017-12-28 2018-06-15 佛山市圆美机械有限公司 Efficient bending machine
CN108555164A (en) * 2018-01-25 2018-09-21 张家港市宇昇机械有限公司 A kind of expanding device for bending machine
CN108555164B (en) * 2018-01-25 2024-02-23 张家港市宇昇机械有限公司 Flaring device for pipe bending machine
CN108273927A (en) * 2018-01-25 2018-07-13 宁波世嘉嘉辰机械有限公司 A kind of automatic bend pipe molding machine for carrying cart handle handrail
CN108246913B (en) * 2018-01-25 2023-06-27 张家港市宇昇机械有限公司 Pipe bending machine
CN108246913A (en) * 2018-01-25 2018-07-06 张家港市宇昇机械有限公司 A kind of bending machine
CN108326090A (en) * 2018-01-31 2018-07-27 江苏合丰机械制造有限公司 A kind of forward and reverse angle pipe equipment
CN108273886A (en) * 2018-02-27 2018-07-13 安徽盛运重工机械有限责任公司 The one-pass molding of steel elbow makes tooling
CN108772451A (en) * 2018-07-03 2018-11-09 张家港市友胜机械制造有限公司 Upper and lower curved New Type Bending Pipe Unit
CN108787822A (en) * 2018-07-03 2018-11-13 张家港市友胜机械制造有限公司 Auxiliary pushing-type New Type Bending Pipe Unit
CN108772451B (en) * 2018-07-03 2024-02-23 张家港市友胜机械制造有限公司 Novel pipe bender capable of bending upwards and downwards
CN108856389A (en) * 2018-07-17 2018-11-23 重庆祥越管道配件制造有限公司 Pipe fitting bends antifriction equipment
CN108856389B (en) * 2018-07-17 2024-06-04 玫德雅昌(济南)管业有限公司 Anti-friction equipment for bending pipe fitting
CN108787819A (en) * 2018-09-13 2018-11-13 张家港市蓝田管业设备有限公司 A kind of multidirectional bending machine
CN109047412B (en) * 2018-10-10 2024-06-04 四川丹甫环境科技有限公司 Forming equipment for U-shaped silencing cross pipe of compressor
CN109047412A (en) * 2018-10-10 2018-12-21 四川丹甫环境科技有限公司 It is a kind of for molding equipment of the U-shaped noise reduction of compressor across pipe
CN109226383A (en) * 2018-11-19 2019-01-18 赵伟 A kind of adjustable high-efficiency bending machine
CN111822561B (en) * 2019-05-14 2022-02-11 哈尔滨工业大学 Section bar or bar die-free hot bending forming follow-up bending device and using method
CN111822561A (en) * 2019-05-14 2020-10-27 哈尔滨工业大学 Section bar or bar die-free hot bending forming follow-up bending device and using method
CN113319165A (en) * 2021-05-12 2021-08-31 张家港市新中和精工机械制造有限公司 Novel pipe bender aircraft nose
CN113680864A (en) * 2021-08-17 2021-11-23 上海发那科机器人有限公司 Full-servo double-single-head robot pipe bending machine
CN114393156A (en) * 2022-02-14 2022-04-26 浙江梦神家居股份有限公司 Special-shaped spring bending machine
CN114472632A (en) * 2022-02-17 2022-05-13 新昌县长城空调部件股份有限公司 Method for processing arc gas pipe
CN114472632B (en) * 2022-02-17 2024-02-20 新昌县长城空调部件股份有限公司 Processing method of arc-shaped gas pipe
CN115971298A (en) * 2022-12-14 2023-04-18 杭州格科机械有限公司 Bending device for metal pipeline machining

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