CN115475850B - Forming process and equipment of three-way pipe for pipeline engineering - Google Patents
Forming process and equipment of three-way pipe for pipeline engineering Download PDFInfo
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- CN115475850B CN115475850B CN202211060289.7A CN202211060289A CN115475850B CN 115475850 B CN115475850 B CN 115475850B CN 202211060289 A CN202211060289 A CN 202211060289A CN 115475850 B CN115475850 B CN 115475850B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
- B21C37/29—Making branched pieces, e.g. T-pieces
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Abstract
The invention relates to the technical field of material processing, in particular to a forming process of a three-way pipe for pipeline engineering. The molding process comprises the following steps: step one, horizontally placing a heated blank pipe on a lower die; step two, starting a driving assembly, wherein the upper die is lowered to an execution height from an initial height relative to the lower die, and in the process, the flat blank pipe is clamped by the flattening mechanism; step three, continuously starting the driving assembly, loosening the blank pipe by the flattening clamping mechanism in the process that the upper die moves from the execution height to the die clamping height, continuously pressing down after the upper die is abutted to the top end of the blank pipe, and downwards protruding the bottom of the blank pipe to form a bulge; step four, starting a cooling mechanism immediately before die assembly, and cooling the upper dies and the upper cambered surfaces of the blank pipes until die assembly is performed to form complete bulges; fifthly, the bulge is perforated and pulled, so that the heat loss of the forming process is small, and the energy is saved. The invention also relates to forming equipment of the three-way pipe for the pipeline engineering.
Description
Technical Field
The invention relates to the technical field of material processing, in particular to a forming process of a three-way pipe for pipeline engineering. The invention also relates to forming equipment of the three-way pipe for the pipeline engineering.
Background
The traditional tee joint forming method comprises the following steps: heating and flattening the tee blank pipe, then heating and swelling, and finally punching and drawing. Heating and heat preservation are needed in the hot-pressing tee joint drawing process, pressing drawing can be carried out at a certain temperature, when the temperature is reduced to a specified temperature, drawing is suspended, and heating and heat preservation are needed again. The traditional drawing process adopts a cold drawing die, when the drawing die is placed in a blank, the temperature of the blank can be quickly absorbed, so that the cooling speed of the blank is increased, the drawing energy is increased, the blank pipe needs frequent replacement stations in the production process, the traditional bulging mode and the cold drawing die drawing process have lower heat utilization rate, the heat utilization rate is only 20%, and most of heat is wasted.
Chinese patent CN110153228A discloses a process for forming high-end tee, which relates to the field of material processing, and comprises the following steps: firstly, processing a blank pipe, namely heating and preserving heat of the three-way blank pipe, and flattening the three-way blank pipe by using a flattening machine; and secondly, perforating the pre-bulge part, selecting the bulge center of the three-way blank pipe, and perforating the bulge center according to calculation.
The forming process still needs frequent blank transferring, and the blank cannot be pressed and formed at one time.
Disclosure of Invention
Aiming at the problems, the forming process of the three-way pipe for the pipeline engineering solves the problem that blanks cannot be pressed and formed at one time in the prior art through the flattening mechanism and the cooling mechanism.
In order to solve the problems in the prior art, the invention adopts the following technical scheme:
the forming process of the three-way pipe for the pipeline engineering comprises the steps of realizing the processing of the three-way pipe through forming equipment, wherein the forming equipment comprises a lower die, an upper die arranged at the top of the lower die and a driving assembly for driving the upper die to move towards the lower die, the upper die sequentially has an initial height, an execution height and a die clamping height from top to bottom relative to the lower die, the forming equipment further comprises a flattening mechanism and a cooling mechanism, the flattening mechanism is arranged on the lower die and is in transmission connection with the upper die, when the upper die moves from the initial height to the execution height, the flattening mechanism radially clamps a blank pipe placed on the lower die, and when the upper die moves from the execution height to the die clamping height, the flattening mechanism loosens a blank pipe so as to avoid the upper die; the cooling mechanism is arranged on the upper die; the molding process comprises the following steps: step one, horizontally placing a heated blank pipe on a lower die; step two, starting a driving assembly, wherein the upper die is lowered to an execution height from an initial height relative to the lower die, and in the process, the flat blank pipe is clamped by the flat clamping mechanism, the whole radial section of the blank pipe is elliptical, and the bottom of the blank pipe falls into the lower die; step three, continuously starting the driving assembly, loosening the blank pipe by the flattening clamping mechanism in the process that the upper die moves from the execution height to the die clamping height, continuously pressing down after the upper die is abutted to the top end of the blank pipe, and downwards protruding the bottom of the blank pipe to form a bulge; step four, starting a cooling mechanism immediately before die assembly, and cooling the upper dies and the upper cambered surfaces of the blank pipes until die assembly is performed to form complete bulges; fifthly, punching holes on the bulges to obtain the bulges.
Preferably, the flattening mechanism comprises a positioning part, a clamping part and a linkage part; the positioning parts are arranged on two sides of the lower die in the axial direction of the blank pipe along the horizontal direction; the two clamping parts are arranged on the positioning part in a sliding way in opposite directions or back to back, and are positioned on two sides of the horizontal radial direction of the blank pipe on the lower die; the two linkage parts are arranged in the lower die and are in transmission connection with the upper die, the two linkage parts are positioned at the outer sides of the two clamping parts, the linkage parts are in guide connection with the clamping parts, and when the upper die moves from the initial height to the execution height, the two linkage parts descend to drive the two clamping parts to move relatively so as to clamp a blank pipe placed on the lower die; when the upper die moves from the execution height to the die closing height, the two linkage parts continuously descend to drive the two clamping parts to loosen the blank pipe placed on the lower die.
Preferably, the positioning part comprises a first fixing seat and a fixing rod, the first fixing seat is fixedly arranged on two sides of the lower die along the axial direction of the blank pipe, the fixing rod is horizontally arranged on the first fixing seat, and the fixing rod extends along the radial direction of the blank pipe; the clamping part comprises mounting frames, second fixing seats, roller shafts, first side plates and springs, the second fixing seats are fixedly arranged on two sides of the mounting frames, and the two mounting frames are oppositely or back-to-back arranged on the fixing rods in a sliding manner through the second fixing seats; the roller shaft is rotationally arranged on the outer side of the mounting frame and extends along the axial direction of the blank pipe; the first side plate is fixedly arranged at the top end of the mounting frame and extends along the axial direction of the blank pipe; the spring is sleeved on the fixed rod, and two ends of the spring are respectively abutted against opposite sides of the first fixed seat and the second fixed seat; the linkage part comprises a second side plate, a connecting column and a positioning plate, and the second side plate is arranged on the outer side of the mounting frame along the vertical direction; the connecting column is fixedly connected with the upper die and the second side plate along the vertical direction; the locating plate equidistant setting is in one side of second curb plate orientation mounting bracket to the outside of locating plate is provided with the side top to and be located the side top and with the first oblique side of being connected, and be located the bottom of side top and with the second oblique curb plate of being connected, roller elasticity butt is on the locating plate, side top, first oblique side and second oblique side and roller sliding fit, when the last mould moves to the execution height from initial height, the roller moves to the side top from the bottom of the oblique side of second, when the last mould moves to the compound die height from the execution height, the roller moves to the top of first oblique side from the side top.
Preferably, the positioning part comprises a first fixing seat and a fixing rod, the first fixing seat is fixedly arranged on two sides of the lower die along the axial direction of the blank pipe, the fixing rod is horizontally arranged on the first fixing seat, and the fixing rod extends along the radial direction of the blank pipe; the clamping part comprises mounting frames, a roll shaft, a first side plate and a magnetic rod, second fixing seats are arranged on two sides of the two mounting frames, and the two mounting frames are oppositely or back-to-back arranged on the fixing rods in a sliding manner through the second fixing seats; the roll shaft is rotationally arranged on the outer side of the mounting frame, extends along the axial direction of the blank pipe and is hollow; the first side plate is fixedly arranged at the top end of the mounting frame and extends along the axial direction of the blank pipe; the magnetic rod is arranged in the hollow roll shaft; the linkage part comprises a second side plate, a connecting column and a positioning plate, and the second side plate is arranged on the outer side of the mounting frame along the vertical direction; the connecting column is fixedly connected with the upper die and the second side plate along the vertical direction; the locating plate equidistant sets up in the one side of second curb plate orientation mounting bracket to the outside of locating plate is provided with the side top to and be located the side top and with the first oblique side of being connected, and be located the bottom of side top and with the second oblique curb plate of being connected, the roller passes through magnetic force pole magnetism absorption on the locating plate, side top, first oblique side and second oblique side and roller sliding fit, when going up the mould and moving to executing the height from initial height, the roller removes to the side top from the bottom of second oblique side, when going up the mould and moving to the compound die height from executing the height, the roller removes to the top of first oblique side from the side top.
Preferably, the upper die is a split piece, and the cooling mechanism comprises a heat exchange tube, a first total flow tube and a second total flow tube; the heat exchange tubes are uniformly distributed in the dividing surface of the upper die; the first total flow pipe is connected with one end of all the heat exchange pipes; the second total flow pipe is connected with the other ends of all the heat exchange pipes, and the heat exchange liquid sequentially flows through the first total flow pipe, the heat exchange pipes and the second total flow pipe.
The invention also relates to forming equipment of the three-way pipe for pipeline engineering, which comprises a lower die, an upper die arranged at the top of the lower die, and a driving assembly for driving the upper die to move towards the lower die, wherein the upper die sequentially has an initial height, an execution height and a die clamping height relative to the lower die from top to bottom; the cooling mechanism is arranged on the upper die.
Preferably, the flattening mechanism comprises a positioning part, a clamping part and a linkage part; the positioning parts are arranged on two sides of the lower die in the axial direction of the blank pipe along the horizontal direction; the two clamping parts are arranged on the positioning part in a sliding way in opposite directions or back to back, and are positioned on two sides of the horizontal radial direction of the blank pipe on the lower die; the two linkage parts are arranged in the lower die and are in transmission connection with the upper die, the two linkage parts are positioned at the outer sides of the two clamping parts, the linkage parts are in guide connection with the clamping parts, and when the upper die moves from the initial height to the execution height, the two linkage parts descend to drive the two clamping parts to move relatively so as to clamp a blank pipe placed on the lower die; when the upper die moves from the execution height to the die closing height, the two linkage parts continuously descend to drive the two clamping parts to loosen the blank pipe placed on the lower die.
Preferably, the positioning part comprises a first fixing seat and a fixing rod, the first fixing seat is fixedly arranged on two sides of the lower die along the axial direction of the blank pipe, the fixing rod is horizontally arranged on the first fixing seat, and the fixing rod extends along the radial direction of the blank pipe; the clamping part comprises mounting frames, second fixing seats, roller shafts, first side plates and springs, the second fixing seats are fixedly arranged on two sides of the mounting frames, and the two mounting frames are oppositely or back-to-back arranged on the fixing rods in a sliding manner through the second fixing seats; the roller shaft is rotationally arranged on the outer side of the mounting frame and extends along the axial direction of the blank pipe; the first side plate is fixedly arranged at the top end of the mounting frame and extends along the axial direction of the blank pipe; the spring is sleeved on the fixed rod, and two ends of the spring are respectively abutted against opposite sides of the first fixed seat and the second fixed seat; the linkage part comprises a second side plate, a connecting column and a positioning plate, and the second side plate is arranged on the outer side of the mounting frame along the vertical direction; the connecting column is fixedly connected with the upper die and the second side plate along the vertical direction; the locating plate equidistant setting is in one side of second curb plate orientation mounting bracket to the outside of locating plate is provided with the side top to and be located the side top and with the first oblique side of being connected, and be located the bottom of side top and with the second oblique curb plate of being connected, roller elasticity butt is on the locating plate, side top, first oblique side and second oblique side and roller sliding fit, when the last mould moves to the execution height from initial height, the roller moves to the side top from the bottom of the oblique side of second, when the last mould moves to the compound die height from the execution height, the roller moves to the top of first oblique side from the side top.
Preferably, the positioning part comprises a first fixing seat and a fixing rod, the first fixing seat is fixedly arranged on two sides of the lower die along the axial direction of the blank pipe, the fixing rod is horizontally arranged on the first fixing seat, and the fixing rod extends along the radial direction of the blank pipe; the clamping part comprises mounting frames, a roll shaft, a first side plate and a magnetic rod, second fixing seats are arranged on two sides of the two mounting frames, and the two mounting frames are oppositely or back-to-back arranged on the fixing rods in a sliding manner through the second fixing seats; the roll shaft is rotationally arranged on the outer side of the mounting frame, extends along the axial direction of the blank pipe and is hollow; the first side plate is fixedly arranged at the top end of the mounting frame and extends along the axial direction of the blank pipe; the magnetic rod is arranged in the hollow roll shaft; the linkage part comprises a second side plate, a connecting column and a positioning plate, and the second side plate is arranged on the outer side of the mounting frame along the vertical direction; the connecting column is fixedly connected with the upper die and the second side plate along the vertical direction; the locating plate equidistant sets up in the one side of second curb plate orientation mounting bracket to the outside of locating plate is provided with the side top to and be located the side top and with the first oblique side of being connected, and be located the bottom of side top and with the second oblique curb plate of being connected, the roller passes through magnetic force pole magnetism absorption on the locating plate, side top, first oblique side and second oblique side and roller sliding fit, when going up the mould and moving to executing the height from initial height, the roller removes to the side top from the bottom of second oblique side, when going up the mould and moving to the compound die height from executing the height, the roller removes to the top of first oblique side from the side top.
Preferably, the upper die is a split piece, and the cooling mechanism comprises a heat exchange tube, a first total flow tube and a second total flow tube; the heat exchange tubes are uniformly distributed in the dividing surface of the upper die; the first total flow pipe is connected with one end of all the heat exchange pipes; the second total flow pipe is connected with the other ends of all the heat exchange pipes, and the heat exchange liquid sequentially flows through the first total flow pipe, the heat exchange pipes and the second total flow pipe.
Compared with the prior art, the beneficial effects of this application are:
1. the blank pipe is clamped, pressed and cooled on one set of equipment, so that the problem that a large amount of heat is lost due to the fact that the blank pipe needs to be transported frequently is avoided, the forming equipment is stable in structure, the heated blank pipe can be pressed into a semi-finished blank pipe with bulges at the bottom for one time, heat loss is small, and energy sources are saved;
2. this application can cool off the top of blank pipe before the compound die promptly through cooling body to prevent that the top of blank pipe from continuing to walk down the material and taking place to warp, avoid simultaneously transporting the blank pipe to the cold water pond and losing thermal problem.
Drawings
FIG. 1 is a schematic diagram of a forming process of a tee;
FIG. 2 is a perspective view of a forming apparatus for a tee for plumbing;
FIG. 3 is an elevation view of an upper die at an initial height in a forming apparatus for a tee for plumbing;
FIG. 4 is a perspective view of a clamping portion and a linkage portion in a molding apparatus of a tee for piping works;
FIG. 5 is a perspective view of an upper die in a forming apparatus for a tee for plumbing;
FIG. 6 is an exploded perspective view of an upper die and cooling mechanism in a tee forming apparatus for plumbing;
FIG. 7 is a perspective view of a lower die in a molding apparatus for a three-way pipe for piping works;
FIG. 8 is an elevation view of an upper die at an execution level in a tee forming apparatus for plumbing;
fig. 9 is a front view of an upper die at a die closing height in a molding apparatus for a tee for piping work.
The reference numerals in the figures are:
101-upper die; 102-lower die; 103-a drive assembly;
2-flattening mechanism; 201-a first fixing seat; 202-a fixed rod; 203-mounting rack; 204-a second fixing seat; 205-roll shaft; 206-a first side plate; 207-spring; 208-magnetic bar; 209-a second side panel; 210-a connecting column; 211-positioning plates;
3-a cooling mechanism; 301-heat exchange tubes; 302-a first total flow pipe; 303-a second total flow tube.
Detailed Description
The invention will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the invention and the specific objects and functions achieved.
As shown in fig. 1, the present application provides:
the forming process of the three-way pipe for the pipeline engineering comprises the steps that the forming equipment is used for processing the three-way pipe and comprises a lower die 102, an upper die 101 arranged at the top of the lower die 102 and a driving assembly 103 used for driving the upper die 101 to move towards the lower die 102, wherein the upper die 101 sequentially has an initial height, an execution height and a die clamping height from top to bottom relative to the lower die 102, the forming equipment further comprises a flattening mechanism 2 and a cooling mechanism 3, the flattening mechanism 2 is arranged on the lower die 102 and is in transmission connection with the upper die 101, when the upper die 101 moves from the initial height to the execution height, the flattening mechanism 2 radially clamps a blank pipe placed on the lower die 102, and when the upper die 101 moves from the execution height to the die clamping height, the flattening mechanism 2 loosens a blank pipe to avoid the upper die 101; the cooling mechanism 3 is provided on the upper die 101; the molding process comprises the following steps:
step one, horizontally placing a heated blank pipe on a lower die 102; the lower die 102 is provided with a first semi-cylindrical groove extending along the horizontal direction, the diameter of the blank pipe is larger than that of the first semi-cylindrical groove, and the blank pipe is coaxially placed on the first semi-cylindrical groove;
step two, starting the driving assembly 103, wherein the upper die 101 is lowered to an execution height from an initial height relative to the lower die 102, and in the process, the flattening mechanism 2 clamps the flat blank pipe, the whole radial section of the blank pipe is elliptical, and the bottom of the blank pipe falls into the lower die 102; as shown in fig. 3, after the blank pipe is flattened, the cambered surface at the bottom end of the blank pipe falls into the first semicircular column groove;
step three, continuously starting the driving assembly 103, loosening the blank pipe by the flattening mechanism 2 in the process that the upper die 101 moves from the execution height to the die clamping height, continuously pressing down after the upper die 101 is abutted against the top end of the blank pipe, and downwards protruding the bottom of the blank pipe to form a bulge; as shown in fig. 7, the bottom end of the upper die 101 is provided with a second semicircular groove column which can be coaxial with the first semicircular groove, the central position of the second semicircular groove is provided with a downward concave, the top cambered surface of the flattened blank pipe falls into the second semicircular groove, and the blank pipe downwards runs to enable the bottom central position of the blank pipe to form a bulge;
step four, starting a cooling mechanism 3 immediately before die assembly, and cooling the upper die 101 and the upper cambered surface of the blank pipe until die assembly is performed to form a complete bulge; cooling the upper cambered surface of the blank pipe to prevent the upper cambered surface from deforming due to continuous downward feeding;
fifthly, punching holes on the bulges to obtain the bulges.
As shown in fig. 3, further:
the flattening mechanism 2 comprises a positioning part, a clamping part and a linkage part;
the positioning parts are arranged on two sides of the blank pipe on the lower die 102 in the axial direction along the horizontal direction;
the two clamping parts are arranged on the positioning part in a sliding way in opposite directions or back to back, and are positioned on two sides of the horizontal radial direction of the blank pipe on the lower die 102;
the two linkage parts are arranged in the lower die 102 and are in transmission connection with the upper die 101, the two linkage parts are positioned at the outer sides of the two clamping parts, the linkage parts are in guide connection with the clamping parts, and when the upper die 101 moves from the initial height to the execution height, the two linkage parts descend to drive the two clamping parts to move relatively so as to clamp a blank pipe placed on the lower die 102; when the upper die 101 moves from the execution height to the die clamping height, the two linkage parts continuously descend to drive the two clamping parts to loosen the blank pipe placed on the lower die 102.
As shown in fig. 3, further:
the positioning part comprises a first fixing seat 201 and a fixing rod 202, the first fixing seat 201 is fixedly arranged on two sides of the lower die 102 along the axial direction of the blank pipe, the fixing rod 202 is horizontally arranged on the first fixing seat 201, and the fixing rod 202 extends along the radial direction of the blank pipe;
the clamping part comprises a mounting frame 203, a second fixing seat 204, a roll shaft 205, a first side plate 206 and a spring 207, wherein the second fixing seat 204 is fixedly arranged on two sides of the mounting frame 203, and the two mounting frames 203 are oppositely or back-slidingly arranged on the fixing rod 202 through the second fixing seat 204; the roller shaft 205 is rotatably arranged on the outer side of the mounting frame 203, and the roller shaft 205 extends along the axial direction of the blank pipe; the first side plate 206 is fixedly arranged at the top end of the mounting frame 203, and the first side plate 206 extends along the axial direction of the blank pipe; the spring 207 is sleeved on the fixed rod 202, and two ends of the spring 207 are respectively abutted against opposite sides of the first fixing seat 201 and the second fixing seat 204;
the linkage part comprises a second side plate 209, a connecting column 210 and a positioning plate 211, wherein the second side plate 209 is arranged on the outer side of the mounting frame 203 along the vertical direction; the connecting column 210 fixedly connects the upper die 101 and the second side plate 209 in the vertical direction; the locating plate 211 equidistant is disposed on one side of the second side plate 209 facing the mounting frame 203, the outer side of the locating plate 211 is provided with a side top, a first inclined side edge which is disposed at the top end of the side top and connected with the side top, and a second inclined side plate which is disposed at the bottom end of the side top and connected with the side top, the roller 205 is elastically abutted on the locating plate 211, the side top, the first inclined side edge and the second inclined side edge are in sliding fit with the roller 205, when the upper die 101 moves from the initial height to the executing height, the roller 205 moves from the bottom end of the second inclined side edge to the side top, and when the upper die 101 moves from the executing height to the die clamping height, the roller 205 moves from the side top to the top end of the first inclined side edge.
As shown in fig. 4, further:
the positioning part comprises a first fixing seat 201 and a fixing rod 202, the first fixing seat 201 is fixedly arranged on two sides of the lower die 102 along the axial direction of the blank pipe, the fixing rod 202 is horizontally arranged on the first fixing seat 201, and the fixing rod 202 extends along the radial direction of the blank pipe;
the clamping part comprises mounting frames 203, a roll shaft 205, a first side plate 206 and a magnetic rod 208, second fixing seats 204 are arranged on two sides of the two mounting frames 203, and the two mounting frames 203 are arranged on the fixing rod 202 in a sliding way in opposite directions or back to back directions through the second fixing seats 204; the roller shaft 205 is rotatably arranged on the outer side of the mounting frame 203, the roller shaft 205 extends along the axial direction of the blank pipe, and the inside of the roller shaft 205 is hollow; the first side plate 206 is fixedly arranged at the top end of the mounting frame 203, and the first side plate 206 extends along the axial direction of the blank pipe; the magnetic bar 208 is disposed in the hollow roller shaft 205;
the linkage part comprises a second side plate 209, a connecting column 210 and a positioning plate 211, wherein the second side plate 209 is arranged on the outer side of the mounting frame 203 along the vertical direction; the connecting column 210 fixedly connects the upper die 101 and the second side plate 209 in the vertical direction; the locating plate 211 equidistant is disposed on one side of the second side plate 209 facing the mounting frame 203, the outer side of the locating plate 211 is provided with a side top, a first inclined side edge which is disposed at the top end of the side top and connected with the side top, and a second inclined side plate which is disposed at the bottom end of the side top and connected with the side top, the roller 205 is magnetically adsorbed on the locating plate 211 through the magnetic rod 208, the side top, the first inclined side edge and the second inclined side edge are in sliding fit with the roller 205, when the upper die 101 moves from the initial height to the executing height, the roller 205 moves from the bottom end of the second inclined side edge to the side top, and when the upper die 101 moves from the executing height to the die clamping height, the roller 205 moves from the side top to the top end of the first inclined side edge.
As shown in fig. 5 and 6, further:
the upper die 101 is a split piece, and the cooling mechanism 3 comprises a heat exchange tube 301, a first total flow tube 302 and a second total flow tube 303;
the heat exchange tubes 301 are uniformly distributed in the dividing surface of the upper die 101;
the first total flow pipe 302 is connected with one end of all the heat exchange pipes 301;
the second total flow pipe 303 is connected to the other ends of all the heat exchange pipes 301, and the heat exchange liquid flows through the first total flow pipe 302, the heat exchange pipes 301, and the second total flow pipe 303 in this order.
As shown in fig. 2-9, further:
the forming equipment of the three-way pipe for the pipeline engineering comprises a lower die 102, an upper die 101 arranged at the top of the lower die 102, and a driving assembly 103 for driving the upper die 101 to move towards the lower die 102, wherein the upper die 101 sequentially has an initial height, an execution height and a die clamping height from top to bottom relative to the lower die 102, the forming equipment further comprises a flattening mechanism 2 and a cooling mechanism 3, the flattening mechanism 2 is arranged on the lower die 102 and is in transmission connection with the upper die 101, when the upper die 101 moves from the initial height to the execution height, the flattening mechanism 2 radially clamps a blank pipe placed on the lower die 102, and when the upper die 101 moves from the execution height to the die clamping height, the flattening mechanism 2 loosens a blank pipe so as to avoid the upper die 101; the cooling mechanism 3 is provided on the upper die 101.
Placing a blank pipe on a lower die 102, starting a driving assembly 103 to enable an upper die 101 to move to a die clamping height from an initial height to the lower die 102 after the upper die 101 moves to the die clamping height from the initial height, gradually clamping a flat blank pipe by a clamping mechanism 2 in the process that the upper die 101 moves to the die clamping height from the initial height, loosening the blank pipe by a clamping part to avoid opening the upper die 101 when the upper die 101 moves to the die clamping height from the die clamping height, and starting a cooling mechanism 3 to cool the top end of the blank pipe immediately before the upper die 101 and the lower die 102 are clamped so as to prevent the top end of the blank pipe from continuously feeding downwards to deform, forming a downward bulge at the middle position of the bottom of the blank pipe after the die clamping action is completed, and then punching and drawing the bulge to obtain a three-way pipe;
this application is through flattening clamp, suppression and the cooling to the blank pipe all realize on one set of equipment, has avoided the frequent blank pipe of transporting and has lost a large amount of thermal problems, and this former's stable in structure can be with the blank pipe of heating press into the semi-manufactured goods blank pipe that the bottom has the bulge once, and heat loss is little, has practiced thrift the energy.
As shown in fig. 3, further:
the flattening mechanism 2 comprises a positioning part, a clamping part and a linkage part;
the positioning parts are arranged on two sides of the blank pipe on the lower die 102 in the axial direction along the horizontal direction; the clamping parts are positioned so that the two clamping parts can stably move;
the two clamping parts are arranged on the positioning part in a sliding way in opposite directions or back to back, and are positioned on two sides of the horizontal radial direction of the blank pipe on the lower die 102; so as to clamp the blank tube from two sides of the blank tube;
the two linkage parts are arranged in the lower die 102 and are in transmission connection with the upper die 101, so that the linkage parts can move along with the lifting of the upper die 101, are positioned at the outer sides of the two clamping parts, and are in guide connection with the clamping parts, and can guide the clamping parts to displace along the horizontal direction through the linkage parts connected with the upper die 101; when the upper die 101 moves from the initial height to the execution height, the two linkage parts descend to drive the two clamping parts to move relatively so as to clamp the blank pipe placed on the lower die 102; when the upper die 101 moves from the execution height to the die closing height, the two linkage parts continuously descend to drive the two clamping parts to loosen the blank pipe placed on the lower die 102, and the clamping parts can stably clamp and prevent the blank pipe on the lower die 102 in the horizontal direction through the linkage of the clamping parts and the linkage parts.
As shown in fig. 3, further:
the positioning part comprises a first fixing seat 201 and a fixing rod 202, the first fixing seat 201 is fixedly arranged on two sides of the lower die 102 along the axial direction of the blank pipe, the fixing rod 202 is horizontally arranged on the first fixing seat 201, and the fixing rod 202 extends along the radial direction of the blank pipe; the two fixing rods 202 can be horizontally arranged on two sides of the lower die 102, so that the clamping parts can be conveniently arranged, and the clamping parts can stably slide along the horizontal direction under the action of the fixing rods 202;
the clamping part comprises a mounting frame 203, a second fixing seat 204, a roll shaft 205, a first side plate 206 and a spring 207, wherein the second fixing seat 204 is fixedly arranged on two sides of the mounting frame 203, and the two mounting frames 203 are oppositely or back-slidingly arranged on the fixing rod 202 through the second fixing seat 204; the roller shaft 205 is rotatably arranged on the outer side of the mounting frame 203, and the roller shaft 205 extends along the axial direction of the blank pipe; the first side plate 206 is fixedly arranged at the top end of the mounting frame 203, and the first side plate 206 extends along the axial direction of the blank pipe; the spring 207 is sleeved on the fixed rod 202, and two ends of the spring 207 are respectively abutted against opposite sides of the first fixing seat 201 and the second fixing seat 204; the two placing plates can be elastically arranged on the fixing rod 202 through the spring 207, so that the first side plate 206 can be reset along the horizontal direction during die assembly, the upper die 101 is avoided, and the upper die 101 is prevented from pressurizing the first side plate 206;
the linkage part comprises a second side plate 209, a connecting column 210 and a positioning plate 211, wherein the second side plate 209 is arranged on the outer side of the mounting frame 203 along the vertical direction; the connecting column 210 is fixedly connected with the upper die 101 and the second side plate 209 along the vertical direction, and the second side plate 209 can be guided to lift along the vertical direction by the connecting column 210 when the upper die 101 lifts; the locating plate 211 equidistant is arranged on one side of the second side plate 209 towards the mounting frame 203, the side top is arranged on the outer side of the locating plate 211, the first inclined side edge is arranged on the top end of the side top and connected with the locating plate, the second inclined side plate is arranged on the bottom end of the side top and connected with the side top, the roller 205 is elastically abutted on the locating plate 211, the side top, the first inclined side edge and the second inclined side edge are in sliding fit with the roller 205, when the upper die 101 moves from the initial height to the execution height, the roller 205 moves from the bottom end of the second inclined side edge to the side top, when the upper die 101 moves from the execution height to the die clamping height, the roller 205 moves from the side top to the top end of the first inclined side edge, because the roller 205 is abutted on the locating plate 211 under the action of elastic force, when the locating plate 211 is lifted in the vertical direction, the roller 205 is always abutted on the locating plate 211 due to the action of elastic abutment, and further, the roller 205 can move along the tracks of the side top, the first inclined side edge and the second inclined side plate, so that when the upper die 101 moves from the initial height to the execution height, the two flat die 206 can be clamped from the first die clamping height to the outer side of the flat die 206, and when the flat die 206 can be clamped from the two flat die blanks 102 to the first die clamping height and the outer side of the flat die 102 can be clamped.
As shown in fig. 4, further:
the positioning part comprises a first fixing seat 201 and a fixing rod 202, the first fixing seat 201 is fixedly arranged on two sides of the lower die 102 along the axial direction of the blank pipe, the fixing rod 202 is horizontally arranged on the first fixing seat 201, and the fixing rod 202 extends along the radial direction of the blank pipe;
the clamping part comprises mounting frames 203, a roll shaft 205, a first side plate 206 and a magnetic rod 208, second fixing seats 204 are arranged on two sides of the two mounting frames 203, and the two mounting frames 203 are arranged on the fixing rod 202 in a sliding way in opposite directions or back to back directions through the second fixing seats 204; the roller shaft 205 is rotatably arranged on the outer side of the mounting frame 203, the roller shaft 205 extends along the axial direction of the blank pipe, and the inside of the roller shaft 205 is hollow; the first side plate 206 is fixedly arranged at the top end of the mounting frame 203, and the first side plate 206 extends along the axial direction of the blank pipe; the magnetic bar 208 is disposed in the hollow roller shaft 205;
the linkage part comprises a second side plate 209, a connecting column 210 and a positioning plate 211, wherein the second side plate 209 is arranged on the outer side of the mounting frame 203 along the vertical direction; the connecting column 210 fixedly connects the upper die 101 and the second side plate 209 in the vertical direction; the locating plate 211 is equidistantly arranged on one side of the second side plate 209 facing the mounting frame 203, a side top, a first inclined side edge which is arranged at the top end of the side top and connected with the side top, and a second inclined side plate which is arranged at the bottom end of the side top and connected with the side top are arranged on the outer side of the locating plate 211, the roller shaft 205 is magnetically adsorbed on the locating plate 211 through the magnetic rod 208, the side top, the first inclined side edge and the second inclined side edge are in sliding fit with the roller shaft 205, when the upper die 101 moves from the initial height to the executing height, the roller shaft 205 moves from the bottom end of the second inclined side edge to the side top, when the upper die 101 moves from the executing height to the die clamping height, the roller shaft 205 moves from the side top to the top end of the first inclined side edge, and the roller shaft 205 can always abut against the locating plate 211 in a magnetic attraction mode so that the first side plate 206 can automatically reset, and when the upper die 101 moves from the executing height to the die clamping height, the two first side plates 206 can move back to release a clamped blank pipe, so that the upper die 101 and the lower die 102 can clamp blanks.
As shown in fig. 5 and 6, further:
the upper die 101 is a split piece, and the cooling mechanism 3 comprises a heat exchange tube 301, a first total flow tube 302 and a second total flow tube 303;
the heat exchange tubes 301 are uniformly distributed in the dividing surface of the upper die 101, so that the heat exchange tubes 301 are conveniently installed;
the first total flow pipe 302 is connected with one end of all the heat exchange pipes 301;
the second total flow pipe 303 is connected with the other ends of all the heat exchange pipes 301, and the heat exchange liquid sequentially flows through the first total flow pipe 302, the heat exchange pipes 301 and the second total flow pipe 303, so that the top of the blank pipe can be rapidly cooled by the heat exchange liquid, the top of the blank pipe is hardened, and the top of the blank pipe is prevented from continuously feeding downwards to deform when the die is to be closed.
The foregoing examples merely illustrate one or more embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (5)
1. The forming process of the three-way pipe for the pipeline engineering is realized through forming equipment, the forming equipment comprises a lower die (102), an upper die (101) arranged at the top of the lower die (102) and a driving component (103) used for driving the upper die (101) to move towards the lower die (102), and is characterized in that the upper die (101) sequentially has an initial height, an execution height and a die clamping height from top to bottom relative to the lower die (102), the forming equipment also comprises a flattening mechanism (2) and a cooling mechanism (3), the flattening mechanism (2) is arranged on the lower die (102) and is in transmission connection with the upper die (101), when the upper die (101) moves from the initial height to the execution height, the flattening mechanism (2) radially clamps a blank pipe placed on the lower die (102), and when the upper die (101) moves from the execution height to the die clamping height, the flattening mechanism (2) loosens the blank pipe to avoid the upper die (101); the cooling mechanism (3) is arranged on the upper die (101); the molding process comprises the following steps:
step one, horizontally placing a heated blank pipe on a lower die (102); step two, starting a driving assembly (103), wherein the upper die (101) descends to an execution height from an initial height relative to the lower die (102), and in the process, the flattening clamping mechanism (2) clamps the flat blank pipe, the whole radial section of the blank pipe is elliptical, and the bottom of the blank pipe falls into the lower die (102); step three, continuously starting the driving assembly (103), wherein in the process that the upper die (101) moves from the execution height to the die clamping height, the flattening mechanism (2) loosens the blank pipe, the upper die (101) is continuously pressed downwards after being abutted against the top end of the blank pipe, and the bottom of the blank pipe protrudes downwards to form a bulge; step four, starting a cooling mechanism (3) immediately before die assembly, and cooling the upper die (101) and the upper cambered surface of the blank pipe until die assembly is performed to form a complete bulge; fifthly, punching holes on the bulges to obtain the bulges.
2. The process for forming the three-way pipe for pipeline engineering according to claim 1, wherein the flattening mechanism (2) comprises a positioning part, a clamping part and a linkage part;
the positioning parts are arranged on two sides of the axial direction of the blank pipe on the lower die (102) along the horizontal direction;
the two clamping parts are arranged on the positioning part in a sliding way in opposite directions or back to back, and are positioned on two sides of the horizontal radial direction of the blank pipe on the lower die (102);
the two linkage parts are arranged in the lower die (102) and are in transmission connection with the upper die (101), the two linkage parts are positioned at the outer sides of the two clamping parts, the linkage parts are in guide connection with the clamping parts, and when the upper die (101) moves from an initial height to an execution height, the two linkage parts descend to drive the two clamping parts to move relatively so as to clamp a blank pipe placed on the lower die (102); when the upper die (101) moves from the execution height to the die closing height, the two linkage parts continuously descend to drive the two clamping parts to loosen the blank pipe placed on the lower die (102).
3. The process for forming the three-way pipe for pipeline engineering according to claim 2, wherein the positioning part comprises a first fixing seat (201) and fixing rods (202), the first fixing seat (201) is fixedly arranged on two sides of the lower die (102) along the axial direction of the blank pipe, the fixing rods (202) are horizontally arranged on the first fixing seat (201), and the fixing rods (202) extend along the radial direction of the blank pipe;
the clamping part comprises a mounting frame (203), a second fixing seat (204), a roll shaft (205), a first side plate (206) and springs (207), wherein the second fixing seat (204) is fixedly arranged on two sides of the mounting frame (203), and the two mounting frames (203) are oppositely or back-to-back arranged on the fixing rod (202) in a sliding manner through the second fixing seat (204); the roller shaft (205) is rotationally arranged on the outer side of the mounting frame (203), and the roller shaft (205) extends along the axial direction of the blank pipe; the first side plate (206) is fixedly arranged at the top end of the mounting frame (203), and the first side plate (206) extends along the axial direction of the blank pipe; the spring (207) is sleeved on the fixed rod (202), and two ends of the spring (207) are respectively abutted against opposite sides of the first fixed seat (201) and the second fixed seat (204);
the linkage part comprises a second side plate (209), a connecting column (210) and a positioning plate (211), and the second side plate (209) is arranged on the outer side of the mounting frame (203) along the vertical direction; the connecting column (210) is fixedly connected with the upper die (101) and the second side plate (209) along the vertical direction; the locating plate (211) equidistant sets up in one side of second curb plate (209) towards mounting bracket (203), the outside of locating plate (211) is provided with the side top, and be located the side top and with the first oblique side of being connected, and be located the bottom of side top and with the second oblique curb plate of being connected, roller (205) elasticity butt is on locating plate (211), side top, first oblique side and second oblique side and roller (205) sliding fit, when last mould (101) remove to the execution height from initial height, roller (205) remove to the side top from the bottom of second oblique side, when last mould (101) remove to the compound die height from the execution height, roller (205) remove to the top of first oblique side from the side top.
4. The process for forming the three-way pipe for pipeline engineering according to claim 2, wherein the positioning part comprises a first fixing seat (201) and fixing rods (202), the first fixing seat (201) is fixedly arranged on two sides of the lower die (102) along the axial direction of the blank pipe, the fixing rods (202) are horizontally arranged on the first fixing seat (201), and the fixing rods (202) extend along the radial direction of the blank pipe;
the clamping part comprises mounting frames (203), a roll shaft (205), a first side plate (206) and a magnetic rod (208), second fixing seats (204) are arranged on two sides of the two mounting frames (203), and the two mounting frames (203) are arranged on the fixing rod (202) in a sliding way in the opposite direction or back to the opposite direction through the second fixing seats (204); the roller shaft (205) is rotationally arranged on the outer side of the mounting frame (203), the roller shaft (205) extends along the axial direction of the blank pipe, and the inside of the roller shaft (205) is hollow; the first side plate (206) is fixedly arranged at the top end of the mounting frame (203), and the first side plate (206) extends along the axial direction of the blank pipe; the magnetic rod (208) is arranged in the hollow roller shaft (205);
the linkage part comprises a second side plate (209), a connecting column (210) and a positioning plate (211), and the second side plate (209) is arranged on the outer side of the mounting frame (203) along the vertical direction; the connecting column (210) is fixedly connected with the upper die (101) and the second side plate (209) along the vertical direction; the locating plate (211) equidistant is arranged on one side of the second side plate (209) towards the mounting frame (203), a side top is arranged on the outer side of the locating plate (211), a first inclined side edge is arranged at the top end of the side top and connected with the locating plate, a second inclined side plate is arranged at the bottom end of the side top and connected with the locating plate, a roll shaft (205) is magnetically adsorbed on the locating plate (211) through a magnetic rod (208), the side top, the first inclined side edge and the second inclined side edge are in sliding fit with the roll shaft (205), when the upper die (101) moves from the initial height to the executing height, the roll shaft (205) moves from the bottom end of the second inclined side edge to the side top, and when the upper die (101) moves from the executing height to the die clamping height, the roll shaft (205) moves from the side top to the top end of the first inclined side edge.
5. The process for forming a three-way pipe for piping work according to any one of claims 1 to 4, wherein the upper die (101) is a split piece, and the cooling mechanism (3) includes a heat exchange pipe (301), a first total flow pipe (302) and a second total flow pipe (303);
the heat exchange tubes (301) are uniformly distributed in the dividing surface of the upper die (101);
the first total flow pipe (302) is connected with one end of all the heat exchange pipes (301);
the second total flow pipe (303) is connected with the other ends of all the heat exchange pipes (301), and the heat exchange liquid sequentially flows through the first total flow pipe (302), the heat exchange pipes (301) and the second total flow pipe (303).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211060289.7A CN115475850B (en) | 2022-08-31 | 2022-08-31 | Forming process and equipment of three-way pipe for pipeline engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211060289.7A CN115475850B (en) | 2022-08-31 | 2022-08-31 | Forming process and equipment of three-way pipe for pipeline engineering |
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| CN115475850A CN115475850A (en) | 2022-12-16 |
| CN115475850B true CN115475850B (en) | 2023-05-23 |
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Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4106322A (en) * | 1976-09-22 | 1978-08-15 | Evgeny Nikolaevich Moshnin | Press for pressing pipe fittings |
| US4246772A (en) * | 1978-07-19 | 1981-01-27 | Moshnin Evgeny N | Pressing branch pipe on thick-walled shell-device for realization thereof |
| JPS56136223A (en) * | 1980-03-28 | 1981-10-24 | Sumitomo Metal Ind Ltd | Manufacture of tee joint |
| CN101704055B (en) * | 2009-12-01 | 2011-06-15 | 无锡市新峰管业股份有限公司 | Hot pressing forming mould and hot pressing forming method of super long branch pipe three-way pipe fitting |
| CN101745789A (en) * | 2010-02-03 | 2010-06-23 | 北京机电研究所 | Forming method of large-caliber tee pipe fitting with high steel grade |
| CN102078899A (en) * | 2010-10-18 | 2011-06-01 | 天津市天锻压力机有限公司 | Pressing mold for large tee tube |
| CN105945087B (en) * | 2016-06-29 | 2018-07-17 | 渤海重工管道有限公司 | A kind of extrusion process of wide tee |
| CN110355323A (en) * | 2019-07-05 | 2019-10-22 | 河北沧海核装备科技股份有限公司 | A kind of processing technology of threeway or header disposal molding |
| CN215279225U (en) * | 2021-05-11 | 2021-12-24 | 济宁耀坤机械有限公司 | Hot extrusion forming device for three-way pipe |
| CN215144028U (en) * | 2021-05-25 | 2021-12-14 | 印刚管道制造有限公司 | Many sizes tee bend hot briquetting mould |
| CN215032706U (en) * | 2021-06-04 | 2021-12-07 | 无锡市新峰管业有限公司 | Hot-press forming die for super-long branch pipe tee pipe fitting |
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