CN105522025A - Pipe-bending forming mechanism in pipe bending machine - Google Patents
Pipe-bending forming mechanism in pipe bending machine Download PDFInfo
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- CN105522025A CN105522025A CN201610061843.1A CN201610061843A CN105522025A CN 105522025 A CN105522025 A CN 105522025A CN 201610061843 A CN201610061843 A CN 201610061843A CN 105522025 A CN105522025 A CN 105522025A
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- clamping
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- bending
- main shaft
- driving mechanism
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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
- B21D7/16—Auxiliary equipment, e.g. for heating or cooling of bends
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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
- 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
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- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a pipe-bending forming mechanism in a pipe bending machine and belongs to the field of pipe bending machines. The pipe-bending forming mechanism in the pipe bending machine comprises a machine shell. A main shaft is movably supported in the machine shell and arranged in the horizontal direction. A main driving mechanism is arranged on the main shaft. A pipe bending arm is arranged at the front end of the main shaft. A die rotating shaft is movably arranged in the main shaft. Both the front end and the rear end of the die rotating shaft stretch out of the main shaft. A bending die is arranged at the front end of the die rotating shaft. A clamping die is arranged below the bending die. A die stripping driving mechanism is arranged at the rear end of the die rotating shaft. 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 used for adjusting the distance between the clamping die and the bending die. The die assembly adjustment component is connected with the clamping die. The clamping die and the bending die can be driven by the die assembly driving mechanism to be assembled or separated. The pipe-bending forming mechanism in the pipe bending machine has the advantages that a pipe to be bent does not need to be held manually when clamped, displacement distance errors, generated when the volume of hydraulic oil changes, of the clamping die can be eliminated, and the maintenance cost can be reduced.
Description
Technical field
The present invention relates to bending machine field, particularly relate to the forming elbow mechanism in a kind of bending machine.
Background technology
Bending machine is process equipment tubing being carried out to brake forming, in current bending machine, the normal a kind of forming elbow mechanism adopted comprises: workbench, in workbench, expansion bearing has main shaft, main shaft is that vertical direction is arranged, main shaft upper end is provided with bending pipe arm, main shaft fixed sleeves is provided with main drive gear, and 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 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 is clamped in by tubing to be curved 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 forming elbow mechanism of said structure: one, wheel model cavity and clamping die cavity are on a left side, right direction is oppositely arranged in level, 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, 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 the inconvenience of above-mentioned traditional forming elbow mechanism carries out brake forming to many tubing simultaneously, and this causes production efficiency low; Two, 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 be convenient to clamp tubing to be curved and by regulate the installation site of clamping thus guarantee die-closed position accurately and effectively can reduce matched moulds time cylinder piston rod suffered by active force bending machine in forming elbow mechanism.
For solving the problem, the technical solution used in the present invention is: the forming elbow mechanism in bending machine, comprise: casing, in casing, 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.
Further, forming elbow mechanism in aforesaid bending machine, wherein: described main driving mechanism comprises fixed cover and is located at 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 on casing, and master cylinder makes bull gear drive by dragging bend pipe tooth bar thus drives spindle synchronous to rotate.
Further, forming elbow mechanism in aforesaid bending machine, wherein: described demoulding driving mechanism comprises the pinion that fixed cover is located at 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 on casing, 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; forming elbow mechanism in aforesaid bending machine; 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, forming elbow mechanism in aforesaid bending machine, wherein: 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.
Further, forming elbow mechanism in aforesaid bending machine, 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, the forming elbow mechanism in aforesaid bending machine, wherein: be embedded with two roller shafts in described die sleeve, two roller shafts are respectively arranged with roller, the bottom of described clamping contacts with in die sleeve two rollers.
Further, forming elbow mechanism in aforesaid bending machine, wherein: on front side of described casing, be provided with the auxiliary clamping device for clamping tubing, when clamping with the wheel tight tubing of die clamp and main driving mechanism drive bending pipe arm to rotate and bend pipe time, auxiliary clamping device can be clamped tubing.
Further, forming elbow mechanism in aforesaid bending machine, wherein: described auxiliary clamping device comprises the clamping support being fixed on casing 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.
Further, the forming elbow mechanism in aforesaid bending machine, wherein: the bearing adopted between described revolving die axle and main shaft is macromolecular material bearing.
The invention has the beneficial effects as follows: one, 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, tubing to be curved is gripped without the need to operating personnel when clamping tubing, 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; Two, 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; Three, by the link transmission effect of two orifice plates, three orifice plates, the active force born needed for piston rod in matched moulds process is effectively reduced 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 four, 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 the forming elbow mechanism in bending machine 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 in Fig. 1 between die sleeve and slide block.
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, forming elbow mechanism in bending machine, comprise: casing 1, in casing 1, expansion bearing has main shaft 16, and main shaft 16 is arranged for horizontal direction, main shaft 16 is provided with main driving mechanism 2, main driving mechanism 2 is arranged on casing 1, main shaft 16 front end is provided with bending pipe arm 11, and 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 and is located at 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 casing 1 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 is fixedly mounted on casing 1, and master cylinder 24 makes gear wheel 21 rotate by dragging bend pipe tooth bar 22 thus drives main shaft 16 synchronous rotary.The revolving die axle 17 of a concentric is movably set with in main shaft 16, that is: the central axis of main shaft 16 and the central axis of revolving die axle 17 overlap, 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.In the present embodiment, the bearing adopted between revolving die axle 17 and main shaft 16 is macromolecular material bearing, is specially copper graphite bearing, and copper graphite bearing can play nothing to lubrication, make 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 wheel mold shaft 17 front end, makes wheel mould 5 can follow revolving die axle 17 and rotates and do not loosen.Wheel mould 5 is provided with 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 the lower impressions 61 of cooperation corresponding with upper impression 51, revolving die axle 17 rear end is provided with demoulding driving mechanism 3, demoulding driving mechanism 3 is arranged on casing 1, 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.In the present embodiment, described demoulding driving mechanism 3 comprises the pinion 31 that fixed cover is located at revolving die shaft 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 casing 1 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 of revolving die oil cylinder, and revolving die oil cylinder is fixedly mounted on casing 1, and revolving die oil cylinder 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 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, the lower impressions 61 of clamping 6 can be docked mutually with the upper impression 51 of wheel mould 5, 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 position, 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 shown in Figure 2, Figure 3, Figure 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, be provided with back-moving spring 99 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.In the present embodiment, 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, can reduce the resistance to sliding of clamping 6 in die sleeve groove 92 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 at and regulate on bearing 96.When reality uses, the Volume Changes that can produce according to hydraulic oil liquid temperature influence is carried out flexible modulation die sleeve 91 and is fixed on position 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 liquid volume changes, the deviation that clamping 6 displacement produces, thus improve closing precision.
As shown in Figure 1, in the present embodiment, be provided with the auxiliary clamping device 8 for clamping tubing on front side of described casing 1, when clamping 6 and wheel mould 5 clamp tubing and main driving mechanism 2 drives bending pipe arm 11 swivel elbow, auxiliary clamping device 8 can be clamped tubing.In the present embodiment, described auxiliary clamping device 8 comprises the clamping support 81 being fixed on casing 1 front end, clamping support 81 is provided with trip holder 82, the upper/lower terminal of trip holder 82 is 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.
The operation principle of the forming elbow mechanism in the bending machine of said structure is as follows: first, tubing to be curved is positioned in the lower impressions 61 of clamping 6, then the die cylinder 74 of matched moulds driving mechanism 7 is started, in tubing to be curved is clamped at clamping die cavity that wheel mould 5 and clamping 6 form; Then clamping cylinder 84 is started, 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 tubing to be curved is clamped in the holding tank that clamping counterdie 85 and clamping patrix 83 formed, thus the tubing to be curved that is clamped, 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 of main driving mechanism 2 is started, master cylinder 24 makes gear wheel 21 rotate forward by promoting bend pipe tooth bar 22 thus drives main shaft 16 to rotate forward, thus bending pipe arm 11 is rotated, now clamping 6 is rotated, until complete the brake forming work of tubing around wheel mould 5.In above-mentioned brake forming process, clamping 6 is at wheel mould 5 with under the friction and Extrusion effect of tubing, and clamping 6 outwards can be slided along die sleeve groove 921; To complete after bend pipe work reverse starting die cylinder 74 again, the piston rod 741 of die cylinder 74 is reclaimed, makes clamping 6 depart from wheel mould 5, the tubing of now brake forming is buckled in the upper impression 51 of wheel mould 5; In addition, clamping 6 owing to being no longer subject to the effect of friction and Extrusion power, so can under the effect of back-moving spring 99 homing; Finally, start revolving die oil cylinder, the piston rod of revolving die oil cylinder 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, the bending tubing of the upper impression 51 being positioned at wheel mould 5 is come off naturally, handled easily personnel get pipe, so far terminate bend pipe process.
Forming elbow mechanism in the bending machine of said structure has the following advantages: one, 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, tubing to be curved is gripped without the need to operating personnel when clamping tubing, 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; Two, 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; Three, by the link transmission effect of two orifice plates, three orifice plates, the active force born needed for piston rod in matched moulds process is effectively reduced 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 four, 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. the forming elbow mechanism in bending machine, comprise: casing, it is characterized in that: in casing, 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.
2. the forming elbow mechanism in bending machine according to claim 1, it is characterized in that: described main driving mechanism comprises fixed cover and is located at 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 on casing, and master cylinder makes bull gear drive by dragging bend pipe tooth bar thus drives spindle synchronous to rotate.
3. the forming elbow mechanism in bending machine according to claim 1, it is characterized in that: described demoulding driving mechanism comprises the pinion that fixed cover is located at 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 on casing, 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 forming elbow mechanism in the bending machine 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. the forming elbow mechanism in bending machine 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 forming elbow mechanism in the bending machine 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 forming elbow mechanism in bending machine according to claim 6, is characterized in that: be embedded with two roller shafts in described die sleeve, and two roller shafts are respectively arranged with roller, and the bottom of described clamping contacts with in die sleeve two rollers.
8. the forming elbow mechanism in the bending machine according to claim 1 or 2 or 3, it is characterized in that: on front side of described casing, be provided with the auxiliary clamping device for clamping tubing, when clamping with the wheel tight tubing of die clamp and main driving mechanism drive bending pipe arm to rotate and bend pipe time, auxiliary clamping device can be clamped tubing.
9. the forming elbow mechanism in bending machine according to claim 8, it is characterized in that: described auxiliary clamping device comprises the clamping support being fixed on casing 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.
10. the forming elbow mechanism in the bending machine according to claim 1 or 2 or 3, is characterized in that: the bearing adopted between described revolving die axle and main shaft is macromolecular material bearing.
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| CN201610061843.1A CN105522025A (en) | 2016-01-29 | 2016-01-29 | Pipe-bending forming mechanism in pipe bending machine |
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| CN201610061843.1A CN105522025A (en) | 2016-01-29 | 2016-01-29 | Pipe-bending forming mechanism in pipe bending machine |
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| CN105522025A true CN105522025A (en) | 2016-04-27 |
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| CN201610061843.1A Pending CN105522025A (en) | 2016-01-29 | 2016-01-29 | Pipe-bending forming mechanism in pipe bending machine |
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| CN106734693A (en) * | 2016-12-05 | 2017-05-31 | 西北工业大学 | A kind of feed mechanism for space pipe fitting bending building mortion |
| CN107263134A (en) * | 2017-05-04 | 2017-10-20 | 西安优耐特容器制造有限公司 | A kind of supporting tool and forming method for thin-wall bend cold forming |
| 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 |
| CN107803416A (en) * | 2017-12-11 | 2018-03-16 | 张家港市明华机械制造有限公司 | A kind of pipe bender head drive device |
| CN107813018A (en) * | 2017-12-18 | 2018-03-20 | 张家港兴宇机械制造有限公司 | Feeding floating installation in cutting 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 |
| CN108620500A (en) * | 2018-07-23 | 2018-10-09 | 珠海格力智能装备有限公司 | Driving mechanism and pipe bending machine with same |
| CN108672535A (en) * | 2018-07-03 | 2018-10-19 | 张家港市友胜机械制造有限公司 | 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 |
| CN109047416A (en) * | 2018-09-13 | 2018-12-21 | 张家港市蓝田管业设备有限公司 | A kind of efficient double flute bending machine |
| CN109079010A (en) * | 2018-09-13 | 2018-12-25 | 长治钢铁（集团）锻压机械制造有限公司 | A kind of bending machine for the U-shaped curved production line of speciality |
| CN109433871A (en) * | 2018-10-29 | 2019-03-08 | 张家港兴宇机械制造有限公司 | Clamping driving device in bending machine |
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| CN106734693A (en) * | 2016-12-05 | 2017-05-31 | 西北工业大学 | A kind of feed mechanism for space pipe fitting bending building mortion |
| CN107263134A (en) * | 2017-05-04 | 2017-10-20 | 西安优耐特容器制造有限公司 | A kind of supporting tool and forming method for thin-wall bend cold forming |
| CN107803416B (en) * | 2017-12-11 | 2023-10-27 | 张家港市明华机械制造有限公司 | Driving device for pipe bender head |
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| 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 |
| CN107813018A (en) * | 2017-12-18 | 2018-03-20 | 张家港兴宇机械制造有限公司 | Feeding floating installation in cutting 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 |
| 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 |
| CN108672535A (en) * | 2018-07-03 | 2018-10-19 | 张家港市友胜机械制造有限公司 | New Type Bending Pipe Unit |
| CN108672535B (en) * | 2018-07-03 | 2024-03-26 | 张家港市友胜机械制造有限公司 | Novel pipe bending machine |
| CN108620500A (en) * | 2018-07-23 | 2018-10-09 | 珠海格力智能装备有限公司 | Driving mechanism and pipe bending machine with same |
| CN108620500B (en) * | 2018-07-23 | 2023-12-08 | 珠海格力智能装备有限公司 | Driving mechanism and pipe bending machine with same |
| 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 |
| CN109079010B (en) * | 2018-09-13 | 2023-09-26 | 长治钢铁（集团）锻压机械制造有限公司 | Pipe bending machine for extra-long U-shaped bending production line |
| CN109079010A (en) * | 2018-09-13 | 2018-12-25 | 长治钢铁（集团）锻压机械制造有限公司 | A kind of bending machine for the U-shaped curved production line of speciality |
| CN109047416A (en) * | 2018-09-13 | 2018-12-21 | 张家港市蓝田管业设备有限公司 | A kind of efficient double flute bending machine |
| CN109433871A (en) * | 2018-10-29 | 2019-03-08 | 张家港兴宇机械制造有限公司 | Clamping driving device in bending machine |
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