CN107812801B - Method for processing metal corrugated pipe - Google Patents
Method for processing metal corrugated pipe Download PDFInfo
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- CN107812801B CN107812801B CN201710945421.5A CN201710945421A CN107812801B CN 107812801 B CN107812801 B CN 107812801B CN 201710945421 A CN201710945421 A CN 201710945421A CN 107812801 B CN107812801 B CN 107812801B
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- metal pipe
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Classifications
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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
- B21C37/156—Making tubes with wall irregularities
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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
- B21D15/00—Corrugating tubes
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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
- B21D41/026—Enlarging by means of mandrels
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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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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/773—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material under reduced pressure or vacuum
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
Abstract
The invention discloses a method for processing a metal corrugated pipe, which has the technical scheme that: selecting a section of metal pipe, and performing pipe expansion treatment on two ends of the metal pipe by using pipe expansion equipment to increase the aperture of the two ends of the metal pipe; spinning the middle section of the metal pipe by using corrugation forming equipment to form a corrugation section on the middle section of the metal pipe; necking the flaring section to form a connecting section; putting the metal pipe into a vacuum annealing furnace, heating to 520 ℃, and preserving heat for 4 hours; flaring the connecting section to form a horn-shaped opening; only when the metal pipe is annealed, the metal pipe is heated, so that the consumed energy is less, and the processing of the metal pipe becomes more energy-saving and environment-friendly. When using expand tube equipment to carry out the expand tube to the tubular metal resonator, the tubular metal resonator takes place the friction with expand tube equipment, and the tubular metal resonator produces certain heat for the expand tube process of tubular metal resonator becomes more convenient, swift, and the product of processing out is more accurate, and life is longer.
Description
Technical Field
The invention relates to the technical field of corrugated pipe production, in particular to a method for processing a metal corrugated pipe.
Background
At present, chinese patent No. CN105964749A discloses a device and a method for manufacturing a metal corrugated tube, which includes an upper die base, a lower die base, and a die disposed between the upper die base and the lower die base, wherein when a metal tube is processed, the metal tube needs to be placed inside the die, and then the die is heated, so that the metal tube inside the die is heated and softened. However, in order to form the metal pipe into the corrugated pipe, the metal pipe needs to be heated to a high temperature, and the metal pipe needs to be continuously heated, which requires a large amount of energy.
disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a method for processing a metal corrugated pipe, which has the advantage of less energy consumption when a metal pipe is processed into the corrugated pipe.
The technical purpose of the invention is realized by the following technical scheme: a processing method of a metal corrugated pipe comprises the following steps:
The method comprises the following steps: selecting a section of metal pipe required by the designed length;
Step two: expanding the two ends of the metal pipe by using pipe expanding equipment, so that the aperture of the two ends of the metal pipe is increased, and a straight pipe-shaped flaring section is formed;
Step three: spinning the middle section of the metal pipe by using corrugation forming equipment to form a corrugation section on the middle section of the metal pipe;
Step four: necking the flaring section to form a connecting section, wherein the inner diameter of the connecting end is the same as the minimum inner diameter of the corrugated section;
step five: putting the metal pipe into a vacuum annealing furnace, heating to 520 ℃, and preserving heat for 4 hours;
step six: flaring the connecting section to form a horn-shaped opening;
Wherein, in the second step, the temperature of the metal tube needs to be controlled to be 200 ℃ and 250 ℃.
Through the technical scheme, the metal pipe is annealed in the process of processing the metal pipe, so that the residual stress of the metal pipe is eliminated, and the metal pipe is not easy to break in the using process. And only when the metal pipe is annealed, the metal pipe needs to be heated, so that the consumed energy is less, and the processing of the metal pipe becomes more energy-saving and environment-friendly. When the metal pipe is expanded by the pipe expanding equipment, the metal pipe rubs with the pipe expanding equipment, the metal pipe generates certain heat, and the texture of the metal pipe is slightly softened, so that the pipe expanding process of the metal pipe becomes more convenient and quicker.
preferably, step seven can be performed between step two and step three: the metal tube is placed in a vacuum annealing furnace and heated to 380 ℃ and kept warm for 4 hours, and then the metal tube is taken out and cooled to room temperature.
Through above-mentioned technical scheme, after carrying out heat treatment to the tubular metal resonator, the tubular metal resonator texture becomes soft, is carrying out the in-process that the ripple rolled to the tubular metal resonator like this, and the bellows takes place to shrink to the tubular metal resonator wall thickness that the assurance rolled and is accomplished is more even, and the difficult emergence fracture of the bellows of making in the use.
Preferably, the tube expanding device comprises a frame, a first clamp arranged on the frame and used for clamping the metal tube, and a mandrel connected to the frame in a sliding manner and used for extending into the metal tube and performing flaring treatment on the metal tube.
Through the technical scheme, when the metal pipe needs to be expanded by using the pipe expanding equipment, the metal pipe is clamped by using the first clamp, and then the core rod is controlled to move towards one side of the metal pipe. When the core rod extends into the metal pipe, the core rod starts to perform pipe expanding treatment on the metal pipe.
preferably, an oil cylinder is arranged on the rack, a first mounting seat is arranged on an output shaft of the oil cylinder, and the core rod is in threaded connection with the first mounting seat.
Through the technical scheme, the first mounting seat and the mandrel are moved by the oil cylinder, so that the tube expansion treatment of the metal tube is more convenient and quicker. And the core rod is in threaded connection with the first mounting seat, so that when metal pipes with different inner diameters or the metal pipes need to be expanded to different inner diameters, only the core rod on the first mounting seat needs to be screwed down and replaced, and the applicability of the pipe expanding equipment is improved to a certain extent.
Preferably, the frame is connected with a supporting seat in a sliding manner, a placing hole for the metal pipe to pass is formed in the supporting seat, the end of the core rod extends into the placing hole, a connecting rod connected with the first mounting seat is arranged on the supporting seat, and the connecting rods are at least two and are uniformly distributed on the first mounting seat.
Through above-mentioned technical scheme, when handling the expand tube to the tubular metal resonator, the tip of control tubular metal resonator passes from placing the hole, like this when handling the tubular metal resonator expand tube, the supporting seat can support the tubular metal resonator for the difficult emergence of tubular metal resonator is buckled, and the expand tube is more even.
preferably, the first clamp comprises an upper clamping seat, a lower clamping seat and a first cylinder, wherein the upper clamping seat and the lower clamping seat are connected to the rack in a sliding mode, and the first cylinder is arranged on the rack and connected with the upper clamping seat.
through above-mentioned technical scheme, add man-hour to the tubular metal resonator when needs, place the tubular metal resonator on the holder down, and the lateral wall of tubular metal resonator offsets with the lateral wall of holder down, later control first cylinder output shaft extension and drive the holder and move towards holder one side down. When the upper clamping seat abuts against the metal pipe, the metal pipe is clamped on the first clamp.
Preferably, the frame slides on and is connected with the frame that slides, it is provided with the lantern ring that supplies the tubular metal resonator to pass and support the tubular metal resonator to slide on the frame top, be provided with the spring that links to each other with the frame on the frame lateral wall that slides, the spring is used for the frame that slides to exert the elasticity in directional supporting seat one side.
Through the technical scheme, when the metal pipe is clamped on the first clamp, the end part of the metal pipe is controlled to stretch into the lantern ring, the lantern ring supports the metal pipe, so that the end part, close to the core rod, of the metal pipe is not prone to downward bending, and when the metal pipe is flared, the core rod can stretch into the metal pipe conveniently. The sliding frame is connected to the rack in a sliding mode, and therefore when the supporting seat moves towards one side of the first clamp, the supporting frame can abut against the sliding frame and push the sliding frame to move towards one side of the first clamp, and the sliding frame can always support the metal pipe. When the support frame removed towards keeping away from first anchor clamps one side, the spring promoted the seat of sliding and removed towards supporting seat one side, like this when supporting seat and tubular metal resonator separation, the lantern ring can play the supporting role to the tubular metal resonator for the tubular metal resonator is close to the difficult downward buckling of tip of supporting seat.
Preferably, the spring is connected with the lower clamping seat, a first inclined plane is arranged on the end face, deviating from the spring, of the lower clamping seat, a second inclined plane used for abutting against the first inclined plane is arranged on the rack, and the second inclined plane faces towards one side of the spring.
Through above-mentioned technical scheme, when the supporting seat offsets with the seat of sliding and the drive seat of sliding is close to towards first anchor clamps one side, the spring shrinkage of connection between first anchor clamps and the seat of sliding and exert with thrust to lower holder. At the moment, the first inclined plane on the lower clamping seat is abutted to the second inclined plane on the rack, and the lower clamping seat moves towards one side of the upper clamping seat under the action of the spring, so that the first clamp can clamp the metal pipe more stably.
Preferably, the ripple former includes the support body, slides and connects second anchor clamps that are used for carrying out the centre gripping to the tubular metal resonator on the support body, rotate the rolling mechanism who connects and be used for carrying out the roll extrusion processing to the tubular metal resonator on the support body, rolling mechanism includes second mount pad, a plurality of rolling head of connection of sliding, the setting is used for driving the driving piece that the rolling head removed towards second mount pad center on the second mount pad.
through above-mentioned technical scheme, when needs roll to the ripple to the tubular metal resonator, press from both sides tubular metal resonator one end tightly on the second anchor clamps, and the other end stretches into in the second mount pad. And then the rolling head is controlled to be abutted against the outer side wall of the metal pipe by the driving piece, and then the mounting seat is controlled to rotate and roll the metal pipe.
preferably, the driving part comprises a connecting block which is arranged on the side wall of the rolling head and connected with the second mounting seat in a sliding manner, a control sleeve which is sleeved on the second mounting seat and used for abutting against the connecting block, and a second air cylinder which is arranged on the rack and used for driving the control sleeve to be close to or far away from the second clamp, wherein a third inclined plane is arranged on the end face of the connecting block facing the control sleeve, and the orientation of the third inclined plane is deviated from one side of the axial lead of the second mounting seat.
through the technical scheme, when the metal pipe stretches into the mounting seat, the second air cylinder output shaft is controlled to extend and push the control sleeve to move, so that the inner wall of the control sleeve abuts against the third inclined surface on the connecting block, the rolling head is driven to move towards one side of the axial lead of the second mounting seat, and the rolling head abuts against the outer side wall of the metal pipe.
in summary, compared with the prior art, the beneficial effects of the invention are as follows:
1. When the metal pipe is processed, only tempering treatment needs to be carried out on the metal pipe, so that energy consumption is low, and the metal pipe is more energy-saving and environment-friendly;
2. the support frame is connected with in sliding on the expand tube equipment, is provided with the hole of placing that supplies the tubular metal resonator to pass on the support frame, adds man-hour to the tubular metal resonator like this, and the support frame can play the supporting role to the tip of tubular metal resonator orientation plug for the tubular metal resonator is difficult for taking place to buckle.
Drawings
FIG. 1 is a schematic structural diagram of a pipe expanding device, which is mainly used for showing the appearance structure of the pipe expanding device;
FIG. 2 is a schematic cross-sectional view of the first clamping apparatus, which is mainly used to show the connection between the lower clamping base and the frame;
Fig. 3 is a schematic structural diagram of the corrugation forming apparatus, which is mainly used for showing the appearance structure of the corrugation forming apparatus.
Reference numerals: 1. a frame; 2. a first clamp; 21. an upper clamping seat; 22. a lower clamping seat; 23. a first cylinder; 3. a core rod; 4. an oil cylinder; 5. a first mounting seat; 6. a supporting seat; 7. placing holes; 8. a connecting rod; 9. a sliding frame; 10. a collar; 11. a spring; 12. a first inclined surface; 13. a second inclined surface; 14. a frame body; 15. a second clamp; 16. a rolling mechanism; 161. a second mounting seat; 162. rolling a head; 163. a drive member; 1631. connecting blocks; 1632. a control sleeve; 1633. a second cylinder; 17. a third inclined surface.
Detailed Description
the present invention will be described in further detail with reference to the accompanying drawings.
The existing processing method of the metal corrugated pipe comprises the following specific steps:
The method comprises the following steps: measuring a metal pipe with a certain length according to the requirement, and cutting the metal pipe;
step two: clamping the metal pipe on a pipe expanding device, then performing pipe expanding treatment on two ends of the metal pipe by using the pipe expanding device, so that the pipe diameters of the two ends of the metal pipe are increased to form a straight pipe-shaped flaring section, and in the process, controlling the temperature of the metal pipe to be at 200 ℃ and 250 ℃;
Step three: placing the metal pipe on corrugated pipe forming equipment, and then spinning the middle part of the metal pipe by using the corrugated pipe forming equipment to form a corrugated section in the middle part of the metal pipe;
Step four: fixing the metal pipe, and then necking the two ends of the metal pipe to reduce the pipe diameters of the two ends of the metal pipe to form a connecting section, wherein the pipe diameter of the connecting section is the same as the minimum pipe diameter of the corrugated end;
Step five: placing the processed metal pipe into a vacuum annealing furnace, slowly heating the metal pipe to 520 ℃, then preserving heat for 4 hours at the temperature of 520 ℃, and then taking out the metal pipe and cooling to room temperature;
Step six: flaring the connecting section to form a horn-shaped opening, wherein the width of the opening gradually increases towards one side away from the corrugated section;
Step seven can also be carried out between step two and step three: the metal tube was placed in a vacuum annealing furnace and slowly heated to 380 degrees and kept at a constant temperature for 4 hours, after which the metal tube was taken out and cooled to room temperature.
The tube expanding device, as shown in fig. 1, comprises a frame 1, a mandrel 3 arranged on the frame 1 and used for extending into a metal tube and expanding the metal tube, and a first clamp 2 arranged on the frame 1 and used for clamping the metal tube.
An oil cylinder 4 is arranged on the frame 1, an output shaft of the oil cylinder 4 faces one side of the first clamp 2, and an output shaft of the oil cylinder 4 is arranged along the horizontal direction. The end part of the output shaft of the oil cylinder 4 is provided with a first strip-shaped mounting seat 5, and the length direction of the first mounting seat 5 is perpendicular to the length direction of the output shaft of the oil cylinder 4. The mandrel 3 is screwed on the end surface of the first mounting seat 5 facing the first clamp 2, and the length direction of the mandrel 3 is parallel to the length direction of the output shaft of the oil cylinder 4.
The frame 1 is provided with connecting rods 8 connected with the first mounting base 5, and the number of the connecting rods 8 is four and is evenly distributed on four corners of the first mounting base 5. The connecting rod 8 is connected with a supporting seat 6 in an upward sliding mode, a placing hole 7 for the metal pipe to pass through is arranged in the center of the supporting seat 6 in a penetrating mode, and the aperture of the placing hole 7 is larger than the outer diameter of the metal pipe.
As shown in fig. 1 and 2, the first clamp 2 includes a lower holder 22, an upper holder 21, and a first cylinder 23 connected to the upper holder 21 for driving the upper holder 21 to approach or separate from the lower holder 22. The lower clamping seat 22 and the upper clamping seat 21 are connected to the frame 1 in a sliding manner, and the sliding directions of the lower clamping seat 22 and the upper clamping seat 21 are vertical. The end face of the lower holder 22 departing from the support seat 6 is provided with a first inclined surface 12, and the distance between the first inclined surface 12 and the upper holder 21 gradually increases towards one side of the support seat 6. The frame 1 is provided with a second inclined surface 13 opposite to the first inclined surface 12, and the second inclined surface 13 is used for abutting against the first inclined surface 12.
The frame 1 is also connected with a sliding frame 9 in a sliding manner, the sliding frame 9 is positioned between the support frame and the first clamp 2, and the sliding direction of the sliding frame 9 is the same as that of the support seat 6. Be provided with the lantern ring 10 on the top of sliding frame 9, when needing to carry out the expand tube to the tubular metal resonator and handle, the tip of tubular metal resonator passes from the lantern ring 10, and the lateral wall of tubular metal resonator offsets with the 10 inside walls of lantern ring. The end surface of the sliding frame 9 facing the first clamp 2 is provided with a spring 11 connected with a lower clamp seat 22.
when the metal pipe needs to be expanded, the metal pipe is placed on the lower clamping seat 22, the end part of the metal pipe passes through the lantern ring 10 on the sliding frame 9, and then the upper clamping seat 21 is controlled by the first air cylinder 23 to move towards one side of the metal pipe and contact with the metal pipe, and the metal pipe is clamped on the first clamp 2. Then the output shaft of the oil cylinder 4 is controlled to extend and drive the core rod 3 and the supporting seat 6 to move towards one side of the metal pipe. When the metal pipe is inserted into the inside of the placing hole 7 and the mandrel 3 is inserted into the inside of the metal pipe, the mandrel 3 starts the pipe expanding process for the metal pipe. In the process that the supporting seat 6 moves towards one side of the first clamp 2, the supporting seat 6 is abutted against the sliding seat and pushes the sliding seat to move towards one side of the first clamp 2. Meanwhile, the spring 11 between the sliding frame 9 and the lower holder 22 contracts and applies an elastic force to the lower holder 22, so that the lower holder 22 moves toward the upper holder 21 side, and thus the clamping action of the first clamp 2 on the metal pipe is more stable.
As shown in fig. 3, the corrugation forming apparatus includes a frame 14, a second clamp 15 slidably connected to the frame 14 for clamping the metal pipe, and a rolling mechanism 16 rotatably connected to the frame 1 for performing a rolling process on the metal pipe. The second clamp 15 includes a movable base slidably coupled to the frame body 14 and a three-jaw chuck disposed on the movable base.
The rolling mechanism 16 includes a cylindrical second mounting base 161 rotatably connected to the frame 1, a rolling head 162 slidably connected to the second mounting base 161, and a driving member 163 provided on the second mounting base 161 for driving the rolling head 162 to move toward the axial line side of the second mounting base 161. The number of the rolling heads 162 is three, and the rolling heads 162 are distributed in a circumferential array with the axis line of the second mounting seat 161 as the center, and the sliding direction of the rolling heads 162 is the radial direction of the second mounting seat 161.
the driving member 163 includes a connecting block 1631, a control sleeve 1632 and a second cylinder 1633. The connecting block 1631 is fixedly connected to the end surface of the rolling head 162 facing the second mounting seat 161, the end surface of the connecting block 1631 facing the second mounting seat 161 is provided with a third inclined surface 17, and the third inclined surface 17 faces the side far away from the axial lead of the second mounting seat 161. The control sleeve 1632 is sleeved on the second mounting seat 161, and the control sleeve 1632 is used for abutting against the third inclined surface 17 and driving the rolling head 162 to move towards one side of the axial lead of the second mounting seat 161. A second cylinder 1633 is disposed on the frame body 14, and an output shaft of the second cylinder 1633 is connected to the control sleeve 1632 and is used for driving the control sleeve 1632 to move close to or away from the second clamp 15.
When the metal pipe needs to be spin-pressed, the metal pipe is clamped on the second clamp 15, and then the second clamp 15 is controlled to move towards the side of the second mounting seat 161 until the end of the metal pipe extends into the second mounting seat 161. And then the output shaft of the second air cylinder 1633 is controlled to extend and push the control sleeve 1632 to move towards the second clamp 15 side, so that the control sleeve 1632 abuts against the third inclined surface 17 and pushes the rolling head 162 to move towards the axial line side of the second mounting seat 161 until the rolling head 162 abuts against the metal pipe. Then, the second mounting base 161 is controlled to rotate and the second clamp 15 is controlled to move towards the side far away from the second mounting base 161, so that the spinning process of the metal tube is completed.
The above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto.
Claims (8)
1. a processing method of a metal corrugated pipe is characterized by comprising the following steps:
The method comprises the following steps: selecting a section of metal pipe required by the designed length;
step two: expanding the two ends of the metal pipe by using pipe expanding equipment, so that the aperture of the two ends of the metal pipe is increased, and a straight pipe-shaped flaring section is formed;
Step three: spinning the middle section of the metal pipe by using corrugation forming equipment to form a corrugation section on the middle section of the metal pipe;
Step four: necking the flaring section to form a connecting section, wherein the inner diameter of the connecting section is the same as the minimum inner diameter of the corrugated section;
step five: putting the metal pipe into a vacuum annealing furnace, heating to 520 ℃, and preserving heat for 4 hours;
step six: flaring the connecting section to form a horn-shaped opening;
Wherein, in the second step, the temperature of the metal tube needs to be controlled to be 200 ℃ and 250 ℃;
The corrugation forming equipment comprises a frame body (14), a second clamp (15) which is connected to the frame body (14) in a sliding mode and used for clamping a metal pipe, a rolling mechanism (16) which is connected to the frame body (14) in a rotating mode and used for performing rolling processing on the metal pipe, wherein the rolling mechanism (16) comprises a second mounting seat (161), a plurality of rolling heads (162) which are connected to the second mounting seat (161) in a sliding mode, and a driving piece (163) which is arranged on the second mounting seat (161) and used for driving the rolling heads (162) to move towards the center of the second mounting seat (161);
Drive piece (163) including set up on rolling head (162) lateral wall and with second mount pad (161) connection block (1631) that slides, cup joint on second mount pad (161) and be used for controlling cover (1632) that offsets with connecting block (1631), set up in frame (1) and be used for driving controlling cover (1632) and be close to or keep away from second cylinder (1633) of second anchor clamps (15), be provided with third inclined plane (17) on connecting block (1631) towards the terminal surface of controlling cover (1632), and third inclined plane (17) orientation deviates from second mount pad (161) axial lead one side.
2. A method of manufacturing a metal bellows according to claim 1, wherein: step seven can be performed between the step two and the step three: the metal tube is placed in a vacuum annealing furnace and heated to 380 ℃ and kept warm for 4 hours, and then the metal tube is taken out and cooled to room temperature.
3. A method of manufacturing a metal bellows according to claim 1, wherein: the tube expanding equipment comprises a rack (1), a first clamp (2) arranged on the rack (1) and used for clamping the metal tube, and a mandrel (3) connected to the rack (1) in a sliding mode and used for extending into the metal tube and performing flaring treatment on the metal tube.
4. A method of manufacturing a metal bellows according to claim 3, wherein: an oil cylinder (4) is arranged on the rack (1), a first mounting seat (5) is arranged on an output shaft of the oil cylinder (4), and the core rod (3) is in threaded connection with the first mounting seat (5).
5. a method for manufacturing a metal bellows according to claim 4, wherein: the metal pipe support is characterized in that a support seat (6) is connected to the frame (1) in a sliding mode, a placing hole (7) for a metal pipe to penetrate is formed in the support seat (6), the end portion of the core rod (3) stretches into the placing hole (7), a connecting rod (8) connected with the first mounting seat (5) is arranged on the support seat (6), and the connecting rods (8) are at least two and are evenly distributed on the first mounting seat (5).
6. a method of manufacturing a metal bellows according to claim 5, wherein: the first clamp (2) comprises an upper clamping seat (21) connected to the rack (1) in a sliding mode, a lower clamping seat (22) and a first air cylinder (23) arranged on the rack (1) and connected with the upper clamping seat (21).
7. A method of manufacturing a metal bellows according to claim 6, wherein: frame (1) is slided and is connected with sliding frame (9), be provided with on sliding frame (9) top and supply the tubular metal resonator to pass and carry out lantern ring (10) that support to the tubular metal resonator, be provided with spring (11) that link to each other with frame (1) on sliding frame (9) lateral wall, spring (11) are used for applying the elasticity with directional supporting seat (6) one side to sliding frame (9).
8. A method of manufacturing a metal bellows according to claim 7, wherein: spring (11) link to each other with lower holder (22), be provided with first inclined plane (12) on the terminal surface that holder (22) deviates from spring (11) down, be provided with second inclined plane (13) that are used for offsetting with first inclined plane (12) on frame (1), and second inclined plane (13) are towards spring (11) one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710945421.5A CN107812801B (en) | 2017-10-12 | 2017-10-12 | Method for processing metal corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710945421.5A CN107812801B (en) | 2017-10-12 | 2017-10-12 | Method for processing metal corrugated pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107812801A CN107812801A (en) | 2018-03-20 |
| CN107812801B true CN107812801B (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710945421.5A Active CN107812801B (en) | 2017-10-12 | 2017-10-12 | Method for processing metal corrugated pipe |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107876607B (en) * | 2017-11-03 | 2019-10-25 | 佛山市南海兴迪机械制造有限公司 | A kind of corrugated pipe forming machine of band flaring function |
| CN109488432B (en) * | 2018-11-23 | 2021-10-08 | 宁波联华汽车部件有限公司 | Flexible hose |
| CN110435228B (en) * | 2019-08-14 | 2022-01-07 | 义乌市给力机械设备有限公司 | Flaring and closing device for paper telescopic straw automatic sleeve production line |
| CN114643305A (en) * | 2022-03-25 | 2022-06-21 | 蔡衡 | Method and equipment for spinning corrugations in stable metal pipe fitting |
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