CN114192643B - Integral flanging flange production equipment and method - Google Patents
Integral flanging flange production equipment and method Download PDFInfo
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- CN114192643B CN114192643B CN202111509301.3A CN202111509301A CN114192643B CN 114192643 B CN114192643 B CN 114192643B CN 202111509301 A CN202111509301 A CN 202111509301A CN 114192643 B CN114192643 B CN 114192643B
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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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
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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
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/12—Edge-curling
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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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
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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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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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
- B21D41/00—Application of procedures in order to alter the diameter of tube ends
- B21D41/02—Enlarging
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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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- 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
- B21D53/00—Making other particular articles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses an integral flanging flange production device and method, wherein a conveying device is arranged at the top of a bracket, a lifting mechanism is arranged at the bottom of the bracket, a heating device is arranged on a lifting table of the lifting mechanism, a flange forming device is arranged at the discharge end of the conveying device, the flange forming device comprises a pre-expansion die and a forming die which are arranged on a base, and a clamping device is arranged on the base. The connection mode ensures the pressure-resistant degree of the pipeline connection, avoids the problems of unreliable welding seams and large difficulty coefficient of the welding connection mode, realizes the quick and reliable connection of the pipeline on the construction site, and is suitable for the technical field of pipeline connection.
Description
Technical Field
The invention belongs to the technical field of pipeline connection, and particularly relates to integral flanging flange production equipment and method.
Background
The existing polyethylene pure plastic pipe and steel wire mesh reinforced polyethylene composite pipe are connected by adopting two electric fusion welding modes, namely electric fusion sleeve welding and electric fusion flange welding. The electric fusion welding has higher requirements on the outer circle size of the pipeline port, the ovality of the pipeline and the environment, if the welding end surface is stained, deformed or larger or smaller in size, the installation deviation is caused, meanwhile, the pipeline is difficult to install under the condition of ellipse, and the gaps of the peripheral circles after the electric fusion welding are unequal, so that the welding is poor, the molten polyethylene materials are unevenly distributed in the circumferential direction of a molten area, and the connection surface is unreliable; the electric fusion welding has severe requirements on the external environment, and if the operation is difficult under the conditions of damp environment, sewage, dust or water vapor, the phenomenon of insecure weld junction can occur after welding, and serious defects such as leakage and the like even occur in the use process of the pipeline; in actual welding work, the technical capability requirement for operating technicians is high, and if related work cannot be carried out according to the equipment performance and the welding requirement, the welding engineering quality is reduced.
Disclosure of Invention
The invention provides integral flanging flange production equipment which is used for solving the technical problems that in the prior art, the electric fusion welding difficulty coefficient is high, the excircle size of a pipeline port, the pipeline ovality, the environmental requirement and the welding technical requirement are high, the welding quality is difficult to ensure, and the pipeline connection is affected.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides an integral turn-ups flange production facility, which comprises a bracket, the bracket top is equipped with conveyor, the bottom is equipped with elevating system, be equipped with heating device on elevating system's the elevating platform, conveyor's discharge end is equipped with flange forming device, flange forming device is including locating the pre-expansion mould and the forming die on the base, be equipped with clamping device on the base, forming die links to each other with extrusion mechanism, utilize conveyor and elevating system to cooperate, rise heating device to the bracket top, carry the pipeline to the heating device station through conveyor's conveying portion, pipeline port department is equipped with internal stay device and internal stay cover, the internal stay cover is located and is close to pipeline port position, internal stay cover is located and is kept away from pipeline port side and rather than fixed connection, pipeline port is pre-expanded through pre-expansion mould after the rotation supporting part and the heating device joint action of conveyor, forming die accomplishes the flange structure processing of pipeline port part through extrusion mechanism.
Further, the internal stay device comprises an internal stay mechanism, an internal stay optical axis and a stay part matched with the inner diameter of the pipeline, the stay part comprises a plurality of stay blocks of arc structures, the stay blocks are sleeved outside the internal stay mechanism through rubber rings, the internal stay mechanism is sleeved outside the internal stay optical axis, a positioning groove is formed in the side wall of the internal stay optical axis, far away from the port side of the pipeline, and a positioning part for limiting the axial position of the internal stay mechanism along the internal stay optical axis is arranged in the positioning groove.
Further, the internal stay mechanism includes the tight structure of propping in the internal stay optical axis outside of suit, the tight structure both ends of propping cooperatees with the internal stay optical axis through the bush, the internal diameter of bush and the internal stay optical axis external diameter looks adaptation, the external diameter of bush and the internal diameter looks adaptation of propping tight structure and be connected with it through the bolt, the tight structure of propping is kept away from pipeline port side and is equipped with integrated into one piece's positioning disk, opposite side swing joint has the gland plate, the gland plate outside is equipped with gland nut, gland nut and internal stay structure threaded connection positioning disk and gland plate structure all are constructed with the conical surface of interior big-outer small, each tight piece of propping is constructed with the conical surface of positioning disk and gland plate adaptation.
Further, the outer wall integrated into one piece of the tight structure of support constructs and has a plurality of guide post, and each tight piece inner wall of support constructs the guiding hole with the guide post adaptation, and interior propping up the cover and including integrated into one piece's connecting axle and sleeve, connecting axle and inside lining optical axis threaded connection and through round nut locking fixed, sleeve external diameter and pipeline internal diameter looks adaptation.
Further, clamping device is including setting firmly the mounting bracket on the base, is equipped with pipeline anchor clamps and the die cavity anchor clamps that link to each other with the mounting bracket through the centre gripping cylinder respectively in the mounting bracket, and pre-expansion device and forming device are respectively through feeding cylinder movable mounting on sliding formwork, and sliding formwork passes through first sliding component slidable mounting on the die carrier and links to each other with the die carrier through first cylinder, and the die carrier passes through second sliding component slidable mounting on the base and links to each other with the base through the second cylinder.
Further, the pre-expanding device comprises a primary expanding and buckling die and a secondary expanding and buckling die, the primary expanding and buckling die is connected with the sliding die plate through an expanding and buckling die mounting plate and a first ejection cylinder, and the secondary expanding and buckling die is sleeved on the outer side of the primary expanding and buckling die and fixedly connected with the same shaft.
Further, a small-sized direct-current sucker type electromagnet is fixedly arranged in the primary expanding and buckling die through a connecting plate, and a magnetic sucker is arranged in the inner supporting sleeve.
Further, the forming device comprises a die cavity and a forming die core, the die cavity is arranged outside the port of the pipeline through a die cavity clamp, and the forming die core is connected with the sliding die plate through a die core positioning sleeve and a second ejection cylinder.
Further, heating device includes far infrared ceramic heating cabinet, power unit, goes up compression roller and two bearing rollers, go up compression roller and two bearing rollers and the axis parallel of pipeline, power unit includes the motor, drive assembly and chain, rotatory supporting part includes lift cylinder and two backing rolls, lift cylinder's cylinder body sets firmly in the bracket bottom, its expansion end passes through the support frame and links to each other with two backing rolls, the motor passes through drive assembly and chain drive and goes up compression roller and bearing roller rotation, simultaneously under the combined action of two backing rolls, drive the pipeline in the middle of going up compression roller and the bearing roller and rotate when the heating, guarantee that the pipeline port can be heated evenly in infrared ceramic heating cabinet.
The invention also discloses a production method of the integral flanging flange, which comprises the following steps:
s1: installing equipment, namely installing the integral flanging flange production equipment, and electrifying;
s2: the end part is tightly supported, the inner supporting device is placed into the port of the pipeline, the end part of the pipeline is tightly supported, then the inner supporting sleeve is placed, the inner supporting sleeve is fixedly connected with the inner supporting device, and the distance between the inner supporting sleeve and the end part of the pipeline is set according to the requirement;
s3: port heating, namely moving a pipeline port to a station of a heating device through a conveying device and a lifting mechanism to heat the port of the pipeline;
s4: the pipe orifice is preformed, the pipe is matched with the lifting mechanism after being heated, and is moved to a pre-expansion station, the pipe is clamped by the clamping device, the die cavity is clamped at the outer side of the forming flange of the port of the pipe, and the pre-expansion device pre-expands and forms the port of the pipe to form a micro horn-shaped structure;
s5: after the flange is molded and the pipeline port is preformed, the pre-expansion device is moved away, the molding device is moved to the station, a flange structure is molded through the molding device and the extrusion mechanism, and pressure maintaining is carried out;
s6: cooling and opening the die, finishing pressure maintaining, operating the clamping device, loosening the pipeline, cooling the formed flange structure in the forming device by circulating water, opening the die, and forming the flange structure of the pipeline port;
s7: and (3) connecting the pipelines, namely selecting a flange plate matched with the flange structure formed by the pipeline ports to finish mechanical connection among the pipelines.
Compared with the prior art, the invention adopts the structure, and the technical progress is that:
utilize conveyor and elevating system to cooperate, rise heating device to the bracket top, carry the pipeline to the heating device station through conveyor's conveying portion, pipeline port department is equipped with internal stay device and internal stay cover, the internal stay cover is located and is close to pipeline port position, internal stay device locates and internal stay cover keep away from pipeline port side and rather than fixed connection, carry out even heating at conveying device's rotation supporting portion and heating device combined action under the pipeline lateral wall, after the pipeline port is pre-expanded through the pre-expansion mould, forming die accomplishes the flange structure processing of pipeline port part through extrusion mechanism.
The supporting correction of the pipeline size is carried out through the inner supporting device and the inner supporting sleeve in the forming process, so that the pipeline size precision is ensured, the problem of the pipeline port existing in the size precision is avoided, and the pipeline size precision is affected due to the fact that the pipeline is heated and deformed in the pre-expansion and forming processes, so that the pipeline compressive strength is reduced and the connection is difficult; the flange structure is directly formed on the pipeline body through the processing material of the pipeline body, the flange structure which is formed at the end part of the pipeline to be connected is connected through the bolts, the pipeline can be directly and mechanically connected with the pipeline, the pressure-resistant degree of the pipeline connection is ensured by the connection mode, the flange structure and the pipeline are integrated, the connection strength and the rigidity are high, the problems of poor reliability and large welding difficulty coefficient of a welding seam in a welding connection mode are avoided, the installation procedure can be saved, the number of pipe fittings in the pipeline is reduced, the reliability of the pipeline connection can be ensured, the controllability is high, the tightness of the joint can be better realized, the pipeline can be quickly and reliably connected on a construction site, the construction process is simple and convenient, the interface quality can be ensured, the manpower and material resources can be saved, and the later pipeline is convenient to maintain.
In summary, the invention solves the technical problems that the electric fusion welding adopted in the prior art has high difficulty coefficient, higher requirements on the excircle size of the pipeline port, the ovality of the pipeline, the environment and the welding technology, ensures the difficult welding quality and influences the pipeline connection, and is suitable for the technical field of pipeline connection.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
In the drawings:
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of the apparatus before forming a flange according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a heating device according to an embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 1 at A;
FIG. 5 is a diagram showing the relative positions of the clamping device before pre-expanding the flange forming device according to an embodiment of the present invention;
FIG. 6 is a schematic view of a mechanism for connecting an inner brace apparatus to an inner liner in accordance with an embodiment of the present invention;
fig. 7 is an exploded view of an internal stay device in accordance with an embodiment of the present invention.
Marking parts: 00-base, 01-second sliding component, 02-first sliding component, 1-pipe, 2-internal supporting device, 21-internal supporting optical axis, 211-positioning groove, 22-compression nut, 23-bushing, 24-supporting structure, 240-compression disk, 241-guiding column, 242-positioning disk, 25-positioning part, 251-positioning block, 252-sliding shoe, 253-spring, 26-supporting block, 27-rubber strip, 3-internal supporting sleeve, 31-sleeve, 32-connecting shaft, 33-round nut, 34-magnetic sucker, 4-heating device, 5-bracket, 51-lifting mechanism, 511-lifting table, 52-rotating supporting part, 521-lifting cylinder, 522-supporting roller, 53-conveying part, 531-transmission mechanism, 532-conveying motor, 533-roller, 6-power mechanism, 61-upper press roller, 62-lower carrier roller, 63-transmission assembly, 64-motor, 65-telescopic cylinder, 7-clamping device, 70-clamping cylinder, 71-pipe clamp, 72-die cavity clamp, 8-flange forming device, 81-die cavity, 82-forming die core, 83-primary expanding die, 84-secondary expanding die, 85-die core positioning sleeve, 86-expanding die mounting plate, 87-small-sized DC sucker type electromagnet, 91-die carrier, 92-sliding die plate, 93-shifting cylinder, 94-first ejection cylinder and 95-second ejection cylinder.
Detailed Description
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are presented for purposes of illustration and explanation only and are not intended to limit the present invention.
The invention discloses integral flanging flange production equipment, as shown in fig. 1-2, the integral flanging flange production equipment comprises a bracket 5, wherein the top of the bracket 5 is provided with a conveying device, the bottom of the bracket is provided with a lifting mechanism 51, a lifting table 511 of the lifting mechanism 51 is provided with a heating device 4, the discharge end of the conveying device is provided with a flange forming die 8, the flange forming die 8 comprises a pre-expansion die and a forming die which are arranged on a base 00, the base 00 is provided with a clamping device 7, the forming die is connected with an extrusion mechanism, the conveying device is matched with the lifting mechanism 51, the heating device 4 is lifted to the top of the bracket 5, a pipeline 1 is conveyed to a station of the heating device 4 through a conveying part 53 of the conveying device, an inner supporting device 2 and an inner supporting sleeve 3 are arranged at a port of the pipeline 1, the inner supporting sleeve 3 is arranged at a position close to the port of the pipeline 1, the inner supporting sleeve 3 is far away from the port side of the pipeline 1 and is fixedly connected with the inner supporting sleeve, the inner supporting sleeve is uniformly heated under the combined action of a rotary supporting part 52 of the conveying device and the heating device 4, the pipeline 1 port is pre-expanded into a micro-horn structure through the pre-expansion die, and the pipeline 1 port is processed through the extrusion mechanism under the joint effect of the pipeline 1, and the flange processing of the port of the pipeline 1 is completed through the extrusion mechanism. The forming die is a flange root die.
The clamping device 7 comprises a mounting frame fixedly arranged on the base 00, a pipeline clamp 71 and a die cavity 81 clamp 72 which are respectively connected with the mounting frame through a clamping cylinder 70 are arranged in the mounting frame, a pre-expansion die and a forming die are respectively movably arranged on a sliding die plate 92 through a feeding cylinder, the sliding die plate 92 is slidably arranged on a die frame 91 through a first sliding component 02 and is connected with the die frame 91 through a shifting cylinder 93, and the die frame 91 is slidably arranged on the base 00 through a second sliding component 01 and is connected with the base 00 through a second cylinder.
The invention has the beneficial effects that: the heating device 4 is lifted to the top of the bracket 5 by utilizing the cooperation of the conveying device and the lifting mechanism 51, the pipeline 1 is conveyed to the station of the heating device 4 through the conveying part 53 of the conveying device, the port of the pipeline 1 is provided with the inner supporting device 2 and the inner supporting sleeve 3, the inner supporting sleeve 3 is arranged at the position close to the port of the pipeline 1, the inner supporting device 2 is arranged at the side, far away from the port side of the pipeline 1, of the inner supporting sleeve 3 and is fixedly connected with the inner supporting sleeve, the side wall of the pipeline 1 is uniformly heated under the combined action of the rotary supporting part 52 of the conveying device and the heating device 4, the port of the pipeline 1 is in a micro-horn structure through the pre-expansion die, and the forming die completes the flange structure processing of the port part of the pipeline 1 through the extrusion mechanism.
The supporting correction of the size of the pipeline 1 is carried out through the inner supporting device 2 and the inner supporting sleeve 3 in the forming process, so that the size precision of the pipeline 1 is ensured, the problem of the size precision existing at the port of the pipeline 1 is avoided, and the pipeline size precision is affected due to the fact that the pipeline 1 is heated and deformed in the pre-expansion and forming processes, so that the compressive strength of the pipeline 1 is reduced and the connection is difficult; the flange structure is directly formed on the pipeline 1 body through the processing material of the pipeline 1 body, the flange structure which needs to be connected is connected through the bolt, the pipeline and the pipeline are connected in a connecting mode, the direct mechanical connection can be realized, the pressure-resistant degree of the pipeline connection is ensured by the connecting mode, the flange structure and the pipeline 1 are integrated, the connecting strength and the rigidity are high, the problems of poor weld joint reliability and large welding difficulty coefficient due to the adoption of the welding connection mode are avoided, the installation procedure can be saved, the number of pipe fittings in the pipeline is reduced, the reliability of the pipeline connection can be ensured, the controllability is high, the tightness of the joint can be better realized, the pipeline can be quickly and reliably connected on a construction site, the construction process is simple and convenient, the interface quality can be ensured, the manpower and material resources can be saved, and the pipeline 1 is convenient to maintain in the later stage.
As a preferred embodiment of the present invention, as shown in fig. 4-7, the inner supporting device 2 includes an inner supporting mechanism, an inner supporting optical axis 21, and a supporting portion adapted to the inner diameter of the pipe 1, where the supporting portion includes a plurality of supporting blocks 26 with arc structures, the plurality of supporting blocks 26 are sleeved outside the inner supporting mechanism by rubber rings 27, the inner supporting mechanism is sleeved outside the inner supporting optical axis 21, a positioning slot 211 is provided on a side wall of the inner supporting optical axis 21 far from the port side of the pipe 1, and a positioning portion 25 defining an axial position of the inner supporting mechanism along the inner supporting optical axis 21 is provided in the positioning slot 211. The inner supporting mechanism comprises a supporting structure 24 sleeved on the outer side of the inner supporting optical axis 21, two ends of the supporting structure 24 are matched with the inner supporting optical axis 21 through a bushing 23, the inner diameter of the bushing 23 is matched with the outer diameter of the inner supporting optical axis 21, the outer diameter of the bushing 23 is matched with the inner diameter of the supporting structure 24 and is connected with the supporting structure through bolts, an integrally formed positioning disc 242 is arranged on the side, far away from the port of the pipeline 1, of the supporting structure 24, a pressing disc 240 is movably connected to the other side, a pressing nut 22 is arranged on the outer side of the pressing disc 240, the pressing nut 22 is in threaded connection with the inner supporting structure, the positioning disc 242 and the pressing disc 240 are respectively provided with conical surfaces with large inner parts and small outer parts, and each supporting block 26 is provided with a conical surface matched with the positioning disc 242 and the pressing disc 240. The outer wall integrated into one piece of the tight structure 24 of propping up has a plurality of guide post 241, and each tight piece 26 inner wall construction of propping up has the guiding hole with the guide post 241 adaptation, and interior propping up cover 3 includes integrated into one piece's connecting axle 32 and sleeve 31, connecting axle 32 and inside lining optical axis threaded connection and through round nut 33 locking fixed, sleeve 31 external diameter and pipeline 1 internal diameter looks adaptation. The tightening structure 24 is provided with the guide posts 241, and the rubber rings 27 are matched, so that the tightening and loosening actions of the tightening blocks 26 can be guided.
The positioning part 25 comprises a sliding shoe 252 provided with a sliding groove and a positioning block 251 matched with the positioning groove 211, the sliding shoe 252 is fixedly connected with the positioning plate 242 through a bolt, the positioning block 251 is connected with the positioning block 251 through a screw, and a spring 253 is sleeved on the screw.
The working principle of the embodiment is as follows: the tightening structure 24 is connected with the inner supporting optical axis 21 through bushings 23 at two ends to perform radial limiting; the positioning block 251 of the positioning portion 25 is clamped in the positioning groove 211, so that the axial position of the bracing structure 24 on the inner bracing optical axis 21 can be limited, and the axial limiting is performed. The positioning plate 242 is fixedly arranged at one end of the tightening structure 24, the pressing plate 240 is movably connected to the other end of the tightening structure, conical surfaces are arranged on the positioning plate 242 and the positioning plate 240, the relative distance between the pressing plate 240 and the positioning plate 242 can be adjusted by rotating the pressing nut 22, and as the two ends of each tightening block 26 are of conical surface structures, the distance between the positioning plate 242 and the pressing plate 240 is changed, the tightening blocks 26 of the tightening part can be mutually closed or separated under the action of the rubber ring 2727, so that the outer diameter of the tightening part is adjusted, and the tightening and loosening of the inner diameter of the pipeline 1 are completed. The spring 253 is sleeved on the screw, so that the positioning block 251 is stably clamped in the positioning groove 211, and the anti-loosening effect is achieved.
The beneficial effects of this embodiment lie in: the inner part of the pipeline 1 supports the side wall of the pipeline 1 tightly through the inner support device 2, the outer part of the pipeline 1 is clamped by the pipeline clamp 71, and the pipeline 1 can be effectively fixed through the fixing mode of the inner support and the outer clamp, so that the pipeline 1 is prevented from being displaced in the process of pre-expanding the port to form a bell mouth-shaped structure and in the process of forming the flange in the die cavity 81 by the extrusion mechanism, and the forming quality of the flange structure is prevented from being influenced; on the other hand, the internal support device 2 is used for correcting the internal circle of the pipeline 1, and the ovality of the pipeline 1 is corrected simultaneously in the preheating process, and the internal support sleeve 3 can effectively control the inner wall structure of the pipeline 1 to be smooth in forming without steps, folds and weld marks. The dimensional accuracy of the pipeline 1 is guaranteed, deformation cannot occur under the clamping pressure of the pipeline clamp 71, ovality of the pipeline 1 is corrected, the dimensional accuracy of the pipeline 1 is guaranteed, the accuracy of flange forming of the port of the pipeline 1 is improved, and the structural strength and the installation accuracy of the pipeline 1 are guaranteed.
As a preferred embodiment of the present invention, as shown in fig. 3, the heating device 4 includes a far infrared ceramic heating box, a power mechanism 6, an upper pressing roller 61 and two lower supporting rollers 62, the upper pressing roller 61 and the two lower supporting rollers 62 are parallel to the axis of the pipeline 1, the power mechanism 6 includes a motor 64, a transmission assembly 63 and a chain, the rotary support portion 52 includes a lifting cylinder 521 and two supporting rollers 522, the cylinder body of the lifting cylinder 521 is fixedly arranged at the bottom of the bracket 5, the movable end of the lifting cylinder is connected with the two supporting rollers 522 through a supporting frame, the motor 64 drives the upper pressing roller 61 and the lower supporting rollers 62 to rotate through the transmission assembly 63 and the chain, and simultaneously, under the combined action of the two supporting rollers 522, the pipeline 1 between the upper pressing roller 61 and the lower supporting rollers 62 is driven to rotate while heating, so as to ensure that the port of the pipeline 1 can be heated uniformly in the infrared ceramic heating box. The conveying part 53 comprises a conveying motor 532 and a transmission mechanism 531, wherein the conveying motor 532 is fixedly arranged on the bracket 5, and the transmission mechanism 531 drives the roller 533 to rotate so as to realize the transverse movement of the pipeline 1. The lifting platform 511 bottom is equipped with flexible cylinder 65, and flexible cylinder 65 passes through the crossbeam and links to each other with last compression roller 61 for adjust the position of last compression roller 61, cooperation bearing roller 62 realizes the location compress tightly the function of pipeline 1.
The working principle and the beneficial effects of the embodiment are as follows: the heating device 4 can be used for carrying out hot melting to a certain extent on the end part of the pipeline 1 body, is used for heating the end part of the pipeline 1 and is convenient to form, so that the pipeline 1 body and a formed flange structure are better connected into a whole, and the phenomenon that the welding of the pipeline 1 body and the formed flange structure is unstable is avoided. The conveying part 53 can perform a conveying function on the pipeline 1 to realize transverse movement and convey the pipeline 1 to a heating station or a flange forming station; the rotary supporting part 52 can be matched with the upper pressing roller 61 and the lower supporting roller 62 of the heating device 4 to uniformly heat the pipeline 1 in a rotary way, and the pipeline 1 ascends or descends through the lifting cylinder 521 to realize the switching between the conveying function and the rotary function of the pipeline 1; the elevating system 51 can carry out vertically to heating device 4, makes heating device 4 rise to the heating station when pipeline 1 heats, and when the flange shaping, with heating device 4 reduction, for pipeline 1 port flange shaping provides the space, does not need pipeline 1 to carry out the manual movement between heating station and shaping station, improves the linking speed between heating process and the shaping process, avoids pipeline 1 to remove in-process port temperature decline, influences flange shaping effect, improves degree of automation.
As a preferred embodiment of the present invention, as shown in fig. 2, the pre-expansion mold includes a primary expansion mold 83 and a secondary expansion mold 84, the primary expansion mold 83 is connected to the sliding mold plate 92 through the expansion mold mounting plate 86 and the first ejection cylinder 94, and the secondary expansion mold 84 is sleeved outside the primary expansion mold 83 and fixedly connected to the same shaft. The inside of the primary expanding buckle mold 83 is fixedly provided with a small direct current sucker type electromagnet 87 through a connecting plate, and the inside of the inner support sleeve 3 is provided with a magnetic sucker 34.
The molding die comprises a die cavity 81 and a molding die core 82, wherein the die cavity 81 is arranged outside a port of the pipeline 1 through a die cavity 81 clamp 72, and the molding die core 82 is connected with the sliding template 92 through a die core positioning sleeve 85 and a second ejection cylinder 95.
The working principle and beneficial effects of the embodiment are as follows: the port of the pipeline 1 is fully heated by the heating device 4 and then is transferred to a pre-expansion station through the transverse movement of the conveying device, the clamping cylinder 70 acts to clamp the pipeline clamp 71 on the outer side of the internal supporting device 2, the die cavity 81 is fixed at the position of a forming flange of the port of the pipeline 1 through the die cavity 81 clamp 72, the position of a pre-expansion die is adjusted through the shifting cylinder 93 and the first sliding component 02, the primary expansion die 83 is aligned to the port of the pipeline 1, a piston rod of the first ejection cylinder 94 advances, the primary expansion die 83 is inserted into the port of the pipeline 1 to perform preliminary prefabrication on the port of the pipeline 1, and the primary expansion die 83 prefabricates the port of the pipeline 1 into a micro-horn structure; then, the small-sized direct-current sucker type electromagnet 87 is electrified to be attracted with the magnetic sucker 34 in the inner supporting sleeve 3, the first ejection cylinder 94 continues to advance, and the port of the micro-horn structure pushed up by the primary expanding and buckling die 83 is molded through the secondary expanding and buckling die 84, so that the pre-expanding process of the port of the pipeline 1 is completed; after the pre-expansion is finished, the piston rod of the first ejection cylinder 94 retreats to drive the pre-expansion die to retreat, when the magnetic chuck 34 drives the inner supporting sleeve 3 to move to the flush position of the port of the pipeline 1, the small direct current chuck electromagnet 87 is powered off and separated from the magnetic chuck 34 in the inner supporting sleeve 3, the first ejection cylinder 94 continues to retreat to a designated position, the rear sliding die plate 92 moves upwards through the shifting cylinder 93 and the first sliding component 02 to move the pre-expansion die to the upper part, meanwhile, the forming die is moved to a forming station and aligned with the micro-horn structure, the piston rod of the second ejection cylinder 95 advances to push the forming die core 82 to move to the inner side of the die cavity 81 to realize die assembly, and the pipeline 1 material in a molten state is injected through the extrusion mechanism and the flange structure is molded under pressure maintaining.
Prefabricating the end opening of the pipeline 1 to form a micro-horn structure before forming a flange structure at the end of the pipeline 1, and flanging the steel wire mesh skeleton polyethylene composite pipeline 1 body to enable no steel wires at the end of the pipeline 1 to be exposed; the micro-horn structure is formed by prefabricating the primary expanding and buckling die 83 and shaping the secondary expanding and buckling die 84, so that port pre-expansion is carried out step by step in a subsection manner, the port is shaped step by step, and the problem that the port shape mutation and rupture of the pipeline 1 are caused by disposable pre-expansion forming, so that the port pre-expansion quality is influenced is avoided. The position of the inner support sleeve 3 in the pipeline 1 is changed by the attraction mode of the small direct current sucker type electromagnet 87 and the magnetic sucker 34. When the port of the pipeline 1 is heated and pre-expanded, the inner bushing 23 is at a certain distance from the port of the pipeline 1, so that the inner wall of the pipeline 1 is supported, deformation of the pipeline 1 in the heating process and the port pre-expansion process of the pipeline 1 is prevented, and the dimensional accuracy is prevented from being influenced; after the pre-expansion is completed, the first ejection cylinder 94 retreats, the small-sized direct current sucker type electromagnet 87 is attracted with the magnetic sucker 34, the magnetic sucker 34 drives the inner supporting sleeve 3 to be moved back and pulled out to the flush position of the port of the pipeline 1 or the appointed position, support preparation is made for the forming of the flange structure, and deformation of the port of the pipeline 1 in the flange forming process is avoided, so that the precision of the pipeline 1 is influenced.
In a word, through the mode that small-size direct current sucking disc formula electro-magnet 87 and magnetic force sucking disc 34 mutually attract, realize the change of interior brace 3 in pipeline 1 position, realize the position switching of interior brace 3 between different processes, can both accomplish effectively to support pipeline 1 inner wall in every process, guarantee pipeline 1 dimensional accuracy.
According to different sizes of the pipeline 1, the forming process is realized by changing the sizes of the pre-expansion die and the forming die and adjusting the heating time of the heating device 4, and the steel wire mesh reinforced polyethylene composite pipe (DN 250) is used as a test pipe fitting.
S1: installing equipment, namely installing the integral flanging flange production equipment, and electrifying;
s2: the end part is tightly supported, the inner supporting device 2 is placed into the port of the pipeline 1, the compression nut 22 is rotated, the compression disc 240 moves towards the positioning disc 242, the distance between the compression disc and the positioning disc is reduced, the supporting blocks 26 of the supporting part are pushed to expand outwards, the inner wall of the pipeline 1 is supported tightly, the end part of the pipeline 1 is supported tightly, then the inner supporting sleeve 3 is placed, the connecting shaft 32 of the inner supporting sleeve 3 is connected with the inner supporting optical axis 21 and locked and fixed through the round nut 33, the connection and the fixation with the inner supporting device 2 are realized, and the distance between the end part of the sleeve 31 of the inner supporting sleeve 3 and the end part of the pipeline 1 is set according to requirements;
s3: port heating, namely moving the port of the pipeline 1 to a station of the heating device 4 through the conveying device and the lifting mechanism 51 to heat the port of the pipeline 1; specifically, the lifting mechanism 51 lifts the infrared ceramic heating box to the height of the port of the pipeline 1, the conveying motor 532 moves the port of the pipeline 1 into the infrared ceramic heating box through the transmission mechanism 531 and the roller 533, the position of the lower carrier roller 62 is adjusted through the lifting mechanism 51, the pipeline 1 is positioned between the two lower carrier rollers 62, the lifting cylinder 521 acts to lift the two support rollers 522, the pipeline 1 is separated from the roller 533 of the conveying part 53, the motor 64 drives the upper pressing roller 61 and the lower carrier roller 62 to rotate through the transmission assembly 63 and the chain, and meanwhile, under the combined action of the two support rollers 522, the pipeline 1 in the middle of the upper pressing roller 61 and the lower carrier roller 62 is driven to rotate while being heated, so that the port of the pipeline 1 can be heated uniformly in the infrared ceramic heating box, and the heating time is 520s;
s4: the pipe orifice is preformed, after the heating of the pipe 1 is finished, the pipe 1 is matched with the lifting mechanism 51 through the conveying device and moves to a pre-expansion station, the pipe 1 is clamped through the clamping device, meanwhile, the die cavity 81 is clamped at the outer side of the port forming flange position of the pipe 1, and the port of the pipe 1 is pre-expanded and formed through the pre-expansion die, so that a miniature horn-shaped structure is formed; specifically, the heating device 4 and the rotary supporting part 52 are retracted, the pipeline 1 is located on the roller 533 of the conveying part 53, the specific action is opposite to that in the step 3, and not described in detail herein, the conveying part 53 continues to transversely move the pipeline 1 to the pre-expansion station, the clamping cylinder 70 acts to clamp the pipeline clamp 71 on the outer side of the internal supporting device 2, the die cavity 81 is fixed at the position of the forming flange of the port of the pipeline 1 through the die cavity 81 clamp 72, the position of the pre-expansion die is adjusted through the shifting cylinder 93 and the first sliding component 02, the primary expansion die 83 is aligned to the port of the pipeline 1, the piston rod of the first ejection cylinder 94 advances, the primary expansion die 83 is inserted into the port of the pipeline 1 to perform preliminary prefabrication on the port of the pipeline 1, and the primary expansion die 83 prefabricates the port of the pipeline 1 into a micro-horn structure; then, the small-sized direct-current sucker type electromagnet 87 is electrified to be attracted with the magnetic sucker 34 in the inner supporting sleeve 3, the first ejection cylinder 94 continues to advance, and the port of the micro-horn structure pushed up by the primary expanding and buckling die 83 is molded through the secondary expanding and buckling die 84, so that the pre-expanding process of the port of the pipeline 1 is completed;
s5: after the flange is molded and the port of the pipeline 1 is preformed, the pre-expansion die is moved away, the molding die is moved to the station, a flange structure is molded through the molding die and the extrusion mechanism, and pressure maintaining is carried out; specifically, after the pre-expansion is completed, the piston rod of the first ejection cylinder 94 retreats to drive the pre-expansion die to retreat, the magnetic chuck 34 drives the inner support sleeve 3 to move to the flush position of the port of the pipeline 1, the small direct current chuck electromagnet 87 is powered off and separated from the magnetic chuck 34 in the inner support sleeve 3, the pre-expansion die continues to retreat to a designated position along with the first ejection cylinder 94, the rear sliding die plate 92 moves upwards through the shifting cylinder 93 and the first sliding component 02 to move the pre-expansion die to the upper side, meanwhile, the forming die is moved to a forming station and aligns to the micro-horn structure, the piston rod of the second ejection cylinder 95 advances to push the forming die core 82 to move inwards to the die cavity 81 to realize die assembly, and the pipeline 1 material in a molten state is injected through the extrusion mechanism and the flange structure is formed in a pressure maintaining mode for 3 minutes;
s6: cooling and opening the die, finishing pressure maintaining, operating the clamping device 7, loosening the pipeline 1, cooling the formed flange structure in the forming die by circulating water, opening the die, and forming the flange structure of the port of the pipeline 1;
s7: and the pipeline 1 is connected, and a flange plate matched with a flange structure formed by the port of the pipeline 1 is selected to finish the mechanical connection between the pipelines 1.
In summary, the invention solves the technical problems that the electric fusion welding adopted in the prior art has high difficulty coefficient, has higher requirements on the excircle size of the port of the pipeline 1, the ovality of the pipeline 1, the environment and the welding technology, ensures the difficult welding quality and influences the connection of the pipeline 1, and is suitable for the technical field of the connection of the pipeline 1.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (8)
1. The utility model provides an integral turn-ups flange production facility, includes bracket, its characterized in that: the top of the bracket is provided with a conveying device, the bottom of the bracket is provided with a lifting mechanism, a lifting table of the lifting mechanism is provided with a heating device, the discharge end of the conveying device is provided with a flange forming device, the flange forming device comprises a pre-expansion die and a forming die which are arranged on a base, the base is provided with a clamping device, the forming die is connected with an extrusion mechanism, the conveying device is matched with the lifting mechanism, the heating device is lifted to the top of the bracket, a pipeline is conveyed to a station of the heating device through a conveying part of the conveying device, an inner supporting device and an inner supporting sleeve are arranged at the position close to the pipeline port, the inner supporting device is arranged at the side of the inner supporting sleeve far away from the pipeline port and is fixedly connected with the inner supporting sleeve, the pipeline side wall is uniformly heated under the combined action of a rotating supporting part of the conveying device and the heating device, then the pipeline port is pre-expanded through the pre-expansion die, and the forming die completes flange structure processing of the pipeline port part through the extrusion mechanism;
the inner supporting device comprises an inner supporting mechanism, an inner supporting optical axis and a supporting part matched with the inner diameter of the pipeline, the supporting part comprises a plurality of supporting blocks with arc structures, the plurality of supporting blocks are sleeved outside the inner supporting mechanism through rubber rings, the inner supporting mechanism is sleeved outside the inner supporting optical axis, a positioning groove is formed in the side wall of the inner supporting optical axis, far away from the port side of the pipeline, and a positioning part for limiting the axial position of the inner supporting mechanism along the inner supporting optical axis is arranged in the positioning groove;
the inner supporting mechanism comprises a supporting structure sleeved on the outer side of an inner supporting optical axis, two ends of the supporting structure are matched with the inner supporting optical axis through a bushing, the inner diameter of the bushing is matched with the outer diameter of the inner supporting optical axis, the outer diameter of the bushing is matched with the inner diameter of the supporting structure and is connected with the supporting structure through a bolt, the supporting structure is far away from a positioning disc which is integrally formed on the port side of a pipeline, the other side of the supporting structure is movably connected with a pressing disc, a pressing nut is arranged on the outer side of the pressing disc, the pressing nut is in threaded connection with the positioning disc and the pressing disc of the inner supporting structure, and each supporting block is provided with a conical surface matched with the positioning disc and the pressing disc.
2. The integrated flange production facility of claim 1, wherein: the inner supporting sleeve comprises an integrally formed connecting shaft and a sleeve, the connecting shaft is in threaded connection with the optical axis of the lining and is locked and fixed through a round nut, and the outer diameter of the sleeve is matched with the inner diameter of the pipeline.
3. The integrated flange production facility of claim 1, wherein: the clamping device comprises a mounting frame fixedly arranged on the base, a pipeline clamp and a die cavity clamp which are connected with the mounting frame through clamping cylinders are arranged in the mounting frame, the pre-expanding device and the forming device are movably mounted on a sliding template through feeding cylinders respectively, the sliding template is slidably mounted on the die frame through a first sliding assembly and is connected with the die frame through a first cylinder, and the die frame is slidably mounted on the base through a second sliding assembly and is connected with the base through a second cylinder.
4. A unitary flange production facility according to claim 3 wherein: the pre-expanding device comprises a primary expanding and buckling die and a secondary expanding and buckling die, the primary expanding and buckling die is connected with the sliding template through an expanding and buckling die mounting plate and a first ejection cylinder, and the secondary expanding and buckling die is sleeved on the outer side of the primary expanding and buckling die and fixedly connected with the same coaxially.
5. The integrated flange production facility of claim 4, wherein: the inside of the primary expanding buckle die is fixedly provided with a small direct current sucker type electromagnet through a connecting plate, and the inside of the inner supporting sleeve is provided with a magnetic sucker.
6. A unitary flange production facility according to claim 3 wherein: the molding device comprises a mold cavity and a molding mold core, wherein the mold cavity is arranged outside a pipeline port through a mold cavity clamp, and the molding mold core is connected with the sliding mold plate through a mold core positioning sleeve and a second ejection cylinder.
7. The integrated flange production facility of claim 1, wherein: the heating device comprises a far infrared ceramic heating box, a power mechanism, an upper pressing roller and two lower carrier rollers, wherein the upper pressing roller and the two lower carrier rollers are parallel to the axis of a pipeline, the power mechanism comprises a motor, a transmission assembly and a chain, the rotary supporting part comprises a lifting cylinder and two supporting rollers, the cylinder body of the lifting cylinder is fixedly arranged at the bottom of the bracket, the movable end of the lifting cylinder is connected with the two supporting rollers through a supporting frame, the motor drives the upper pressing roller and the lower carrier rollers to rotate through the transmission assembly and the chain, and meanwhile, under the combined action of the two supporting rollers, the pipeline in the middle of the upper pressing roller and the lower carrier rollers is driven to rotate while heating, so that the pipeline port can be heated uniformly in the infrared ceramic heating box.
8. A method for producing an integral flange, which adopts the integral flange production equipment as claimed in claim 1, and is characterized in that: the method comprises the following steps:
s1: installing equipment, namely installing the equipment according to the integral flanging flange production equipment disclosed in claim 1, and electrifying;
s2: the end part is tightly supported, the inner supporting device is placed into the port of the pipeline, the end part of the pipeline is tightly supported, then the inner supporting sleeve is placed, the inner supporting sleeve is fixedly connected with the inner supporting device, and the distance between the inner supporting sleeve and the end part of the pipeline is set according to the requirement;
s3: port heating, namely moving a pipeline port to a station of a heating device through a conveying device and a lifting mechanism to heat the port of the pipeline;
s4: the pipe orifice is preformed, the pipe is matched with the lifting mechanism after being heated, and is moved to a pre-expansion station, the pipe is clamped by the clamping device, the die cavity is clamped at the outer side of the forming flange of the port of the pipe, and the pre-expansion device pre-expands and forms the port of the pipe to form a micro horn-shaped structure;
s5: after the flange is molded and the pipeline port is preformed, the pre-expansion device is moved away, the molding device is moved to the station, a flange structure is molded through the molding device and the extrusion mechanism, and pressure maintaining is carried out;
s6: cooling and opening the die, finishing pressure maintaining, operating the clamping device, loosening the pipeline, cooling the formed flange structure in the forming device by circulating water, opening the die, and forming the flange structure of the pipeline port;
s7: and (3) connecting the pipelines, namely selecting a flange plate matched with the flange structure formed by the pipeline ports to finish mechanical connection among the pipelines.
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| CN115156936B (en) * | 2022-07-21 | 2023-06-06 | 安徽众汇制冷有限公司 | Pipeline pipe fitting key bidirectional port chamfering equipment |
| CN116274683B (en) * | 2023-05-23 | 2023-07-25 | 盐城新路散热设备有限公司 | Flaring equipment for finned tube |
| CN117260270B (en) * | 2023-11-17 | 2024-01-16 | 山东兆鑫石油工具有限公司 | End face fixed type flanging and welding device for stainless steel lining anti-corrosion oil pipe |
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