CN116728004B - Copper-aluminum joint preparation process and preparation device - Google Patents
Copper-aluminum joint preparation process and preparation device Download PDFInfo
- Publication number
- CN116728004B CN116728004B CN202310461718.XA CN202310461718A CN116728004B CN 116728004 B CN116728004 B CN 116728004B CN 202310461718 A CN202310461718 A CN 202310461718A CN 116728004 B CN116728004 B CN 116728004B
- Authority
- CN
- China
- Prior art keywords
- copper
- rod
- extrusion
- aluminum
- aluminum pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 90
- 229910052802 copper Inorganic materials 0.000 claims abstract description 90
- 239000010949 copper Substances 0.000 claims abstract description 90
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 71
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 71
- 238000003466 welding Methods 0.000 claims abstract description 49
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 238000001125 extrusion Methods 0.000 claims description 60
- 230000005540 biological transmission Effects 0.000 claims description 17
- 230000001960 triggered effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 12
- 230000033001 locomotion Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 7
- 238000005057 refrigeration Methods 0.000 description 7
- 239000004411 aluminium Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003984 copper intrauterine device Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention discloses a copper-aluminum joint preparation process which comprises the following steps: the welding method comprises the following steps of shrinkage cavity treatment, inserting and connecting one end of a copper pipe fitting to be welded, inserting and connecting a copper pipe after shrinkage cavity into an aluminum pipe, abutting and tightly connecting the copper pipe fitting and the aluminum pipe through an abutting and tightly connecting component, heating, extruding, abutting and tightly connecting the copper pipe fitting and the aluminum pipe through an extruding mechanism in the welding equipment, and welding the connecting position of the copper pipe fitting and the aluminum pipe through a welding mechanism on the welding equipment. The preparation process and the preparation device for the copper-aluminum joint can always improve the stability during welding during blanking or welding, so that the welding of the device can be greatly facilitated, the stability of the welding position is improved, and the sealing performance of the welding position is integrally improved.
Description
Technical Field
The invention relates to the technical field of refrigeration tube manufacturing, in particular to a copper-aluminum joint manufacturing process and a copper-aluminum joint manufacturing device.
Background
In recent years, along with the development of society and innovation of science and technology, the refrigeration field is greatly developed, the refrigeration technology is widely applied to various fields such as household appliances, traffic and the like, the main components of the refrigeration technology are copper pipes and refrigerants, the refrigerants are working substances for refrigeration circulation in a refrigeration device, and then the refrigerants are conveyed through copper-aluminum pipes so as to achieve a circulation effect; because of the rising price of copper, aluminum is a main measure for reducing the cost in the refrigeration industry instead of copper, and the main mode in the current industry is to weld copper pipes together to form copper-aluminum pipe fittings, and generally when the copper pipes and the aluminum pipes are welded, the copper pipes and the aluminum pipes are required to be spliced, and then the copper pipes and the aluminum pipes are welded by a welding machine.
The prior art has the following defects: when the existing copper-aluminum pipe fitting is welded, after the copper pipe fitting and the aluminum pipe fitting are manually spliced, the copper-aluminum pipe fitting is placed in a welding machine, and then the spliced copper-aluminum pipe fitting is welded by a restarting device, but when an operator is in actual production, the situation that a welding interface is askew can occur, namely, the quality of the processing of the copper-aluminum pipe fitting can be influenced, the strength of a welding position is reduced, and the conditions of leakage sealing and the like are easy to occur.
Disclosure of Invention
The invention aims to provide a copper-aluminum joint preparation process and a copper-aluminum joint preparation device, which are used for solving the defects in the prior art.
In order to achieve the above object, the present invention provides the following technical solutions:
a process for preparing copper-aluminum joint includes such steps as,
s1: reducing the hole, namely reducing the hole at one end of the copper pipe fitting to be welded;
s2: inserting, namely inserting the copper pipe after shrinkage into the aluminum pipe;
s3: tightly propping, namely placing the copper aluminum pipe fitting formed after the plugging in welding equipment, and tightly propping the copper pipe fitting and the aluminum pipe by a set propping component;
s4: heating, namely performing heating treatment at the connection position between the copper aluminum pipe pieces;
s5: extruding, wherein the copper pipe fitting is abutted against the aluminum pipe by an extruding mechanism in the welding equipment;
s6: and (3) welding, namely welding the joint position of the copper pipe fitting and the aluminum pipe through a welding mechanism on welding equipment.
In a further preferable scheme of the embodiment of the invention, the outer diameter of the copper pipe after shrinkage is equal to the inner diameter of the aluminum pipe in size. The outer diameter of the copper pipe after shrinkage cavity is equal to the inner diameter of the aluminum pipe, so that the copper pipe and the aluminum pipe are in transition fit, and the stability between the copper pipe and the aluminum pipe is improved.
The copper-aluminum pipe production device is used for the copper-aluminum joint preparation process and comprises a base and a fixed die holder arranged on the base, wherein a placing groove for placing the copper-aluminum pipe is also formed in the fixed die holder;
the fixing die holder is provided with an upper fixing frame, the upper fixing frame is provided with a telescopic plate, and the telescopic plate moves downwards to extrude and fix the copper-aluminum pipe fitting in the placing groove. Through fixed die holder and the upper fixing frame that set up, can fix the device, then move down through the expansion plate of setting and can extrude and fix the copper aluminium pipe fitting that is in the standing groove, be convenient for copper aluminium pipe fitting welding promptly.
In a further preferable scheme of the embodiment of the invention, the expansion plate is provided with a heating mechanism, and when the expansion plate extrudes the copper-aluminum pipe, the expansion plate can heat the copper-aluminum pipe. The heating mechanism provided in this embodiment is provided on the expansion plate, that is, when the expansion plate is in contact with the copper aluminum pipe, it is possible to heat by the heating mechanism, and then to facilitate the press connection of the copper pipe and the aluminum pipe.
In a further preferable scheme of the embodiment of the invention, the device further comprises an extrusion block which is arranged on the upper fixing frame in a sliding manner, a telescopic plate is also arranged below the extrusion block, the heating mechanism is also arranged below the telescopic plate, and the telescopic block corresponding to the extrusion block is also arranged on the base.
In a further preferable scheme of the embodiment of the invention, the telescopic block and the extrusion block can move towards the upper fixing frame at the same time, and the telescopic block and the extrusion block are fixedly connected through a connecting plate.
In a further preferable scheme of the embodiment of the invention, the feeding mechanism is fixedly arranged on the base, the feeding mechanism comprises an inclined plate fixedly arranged on the base, and the inclined direction of the inclined plate faces the placing groove. Through the feed mechanism who sets up in this embodiment, can make in the processing, can be with the copper pipe fitting that pegging graft well and rate pipe fitting preparation in advance, promptly, great improvement copper aluminium pipe fitting's production efficiency.
In a further preferable scheme of the embodiment of the invention, an intermittent blanking assembly is arranged below the inclined plate, a bearing plate is arranged on the fixed die holder, and the blanking assembly is triggered to perform blanking when the bearing plate abuts against the blanking assembly. Specifically, the bearing plate provided in this embodiment is rotatably disposed on the telescopic block, and the rotating shaft is provided with a torque spring, so that the bearing plate can move towards the blanking assembly and is abutted against the blanking assembly under the elasticity of the torque spring.
In a further preferable scheme of the embodiment of the invention, the blanking assembly comprises a baffle block rotatably arranged on the inclined plate, one end of the baffle block protrudes out of the inclined plate, and the baffle block is used for separating the copper aluminum pipe.
In a further preferable scheme of the embodiment of the invention, one end of the baffle block is rotatably provided with a driving rod, one end of the driving rod protrudes below the inclined plate, and when the bearing plate is abutted against the driving rod, the baffle block is driven to move inwards of the inclined plate so as to release the baffle of the copper-aluminum pipe fitting.
In the technical scheme, the copper-aluminum joint preparation process and the preparation device provided by the invention have the beneficial effects that:
according to the invention, after the copper pipe with the shrinkage cavity is inserted into the aluminum pipe, the copper pipe and the aluminum pipe are abutted, namely, the copper pipe and the aluminum pipe can be abutted all the time, namely, the stability in welding can be improved all the time in blanking or welding, so that the welding of the device can be greatly facilitated, the stability of the welding position is improved, and the sealing performance of the welding position is integrally improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
This document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all of the features of the disclosed technology.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic view of an embodiment of the present invention;
FIG. 2 is a schematic view of a structure of an embodiment of the present invention without a base;
FIG. 3 is a schematic view of another view according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a portion a according to an embodiment of the present invention;
fig. 5 is a schematic top view of a telescopic block according to an embodiment of the present invention;
FIG. 6 is an enlarged schematic view of the structure at B according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an inclined plate and a collision block according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a structure of a movable plate, a baffle block and a driving rod according to an embodiment of the present invention;
FIG. 9 is a schematic view of a device for manufacturing a copper aluminum pipe fitting joint according to an embodiment of the present invention;
FIG. 10 is a schematic side view of an embodiment of the present invention;
FIG. 11 is a schematic diagram of a spin column and an extrusion column according to an embodiment of the present invention;
fig. 12 is a schematic structural diagram of a spin column according to an embodiment of the present invention;
FIG. 13 is a schematic view of an extrusion column and a tapered groove according to an embodiment of the present invention;
FIG. 14 is a schematic view of the structure of the extrusion column, the tapered slot and the limit column according to the embodiment of the present invention;
fig. 15 is a schematic structural diagram of a connection portion and a straight barrel portion according to an embodiment of the present invention;
FIG. 16 is a schematic cross-sectional view of an aluminum pipe and copper pipe fitting according to an embodiment of the present invention;
FIG. 17 is a schematic view of a portion of an aluminum tube and copper tubing provided in an embodiment of the present invention;
FIG. 18 is a schematic cross-sectional view of an aluminum pipe and a copper pipe fitting according to an embodiment of the present invention;
fig. 19 is a schematic structural diagram of a notch according to an embodiment of the present invention.
Reference numerals illustrate:
1. copper pipe fittings; 13. a straight tube portion; 2. an aluminum pipe; 11. a tapered portion; 12. a connection part; 21. an inner conical surface; 3. a notch; 9. a fixing seat; 91. a side plate; 92. a fixed block; 921. a fixed cylinder; 93. a driving motor; 9211. an elliptical groove; 10. a spin column; 1001. an extrusion column; 1002. a limit column; 1003. a sliding groove; 10011. a conical groove; 1004. a plug-in groove; 4. a base; 41. an upper fixing frame; 42. fixing a die holder; 411. extruding a block; 412. a second telescopic rod; 413. a telescoping plate; 5. a first telescopic rod; 51. a telescopic shaft; 6. a telescopic block; 61. a receiving plate; 611. a collision block; 62. a connecting plate; 7. an inclined plate; 71. copper aluminum pipe; 72. a movable plate; 721. a baffle block; 722. a driving rod; 81. a transmission rod; 82. an extrusion rod; 83. a guide rod; 84. a hinge rod; 85. a tightening rod; 831. extruding the chute; 8301. and a buffer tank.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.
Referring to fig. 1-19, a copper-aluminum joint preparation process comprises: comprises the following steps of the method,
s1: and (3) reducing the hole, namely reducing the hole at one end of the copper pipe fitting 1 to be welded.
S2: and (5) inserting, namely inserting the copper pipe after shrinkage into the aluminum pipe 2.
S3: the copper aluminum pipe 71 formed after the plugging is placed in the welding equipment, and the copper pipe 1 and the aluminum pipe 2 are abutted tightly through the set abutting assembly.
S4: heating, and heat treatment is performed at the position where the copper aluminum pipe 71 is connected.
S5: and extruding, wherein the copper pipe fitting 1 is abutted against the aluminum pipe 2 through an extruding mechanism in the welding equipment.
S6: and welding, namely welding the connection position of the copper pipe fitting 1 and the aluminum pipe 2 through a welding mechanism on welding equipment.
According to the invention, after the copper pipe with the shrinkage cavity is inserted into the aluminum pipe 2, the copper-aluminum pipe piece 71 is abutted, namely, the copper pipe and the aluminum pipe 2 can be abutted all the time, namely, the stability in welding can be improved all the time in blanking or welding, so that the welding of the device can be greatly facilitated, the stability at the welding position is improved, and the sealing performance at the welding position is integrally improved.
In the embodiment provided by the invention, the outer diameter of the copper pipe after shrinkage cavity is equal to the inner diameter of the aluminum pipe 2 in size. The outer diameter of the copper pipe after shrinkage cavity is equal to the inner hole size of the aluminum pipe 2, so that the copper pipe and the aluminum pipe 2 are in transition fit in a plugging manner, and the stability between the copper pipe and the aluminum pipe is improved.
Specifically, the invention also provides a copper aluminum pipe 71 production device which is used for the copper aluminum joint preparation process, the copper aluminum pipe 71 production device comprises a base 4 and a fixed die holder 42 arranged on the base 4, and a placing groove for placing the copper aluminum pipe 71 is also arranged on the fixed die holder 42;
the upper fixing frame 41 is arranged on the fixing die holder 42, the telescopic plate 413 is arranged on the upper fixing frame 41, and the telescopic plate 413 moves downwards to squeeze and fix the copper-aluminum pipe 71 in the placing groove. The device can be fixed through the fixed die holder 42 and the upper fixing frame 41, and then the copper-aluminum pipe fitting 71 in the placing groove can be extruded and fixed through the telescopic plate 413, namely, the copper-aluminum pipe fitting 71 is convenient to weld.
Further, the expansion plate 413 is provided with a heating mechanism, and when the expansion plate 413 presses the copper aluminum pipe 71, the copper aluminum pipe 71 can be heated. The heating mechanism provided in the present embodiment is provided on the expansion plate 413, that is, when the expansion plate 413 is in contact with the copper aluminum pipe 71, it is possible to heat by the heating mechanism, and then to facilitate press-connection of the copper pipe 1 and the aluminum pipe 2.
Further, the device also comprises a squeezing block 411 arranged on the upper fixing frame 41 in a sliding manner, a telescopic plate 413 is also arranged below the squeezing block 411, a heating mechanism is also arranged below the telescopic plate 413, and a telescopic block 6 corresponding to the squeezing block 411 is also arranged on the base 4
In a further embodiment of the present invention, the telescopic block 6 and the pressing block 411 can move towards the upper fixing frame 41 at the same time, and the telescopic block 6 and the pressing block 411 are fixedly connected through the connecting plate 62.
In a further embodiment of the present invention, the feeding device further includes a feeding mechanism, which is fixedly disposed on the base 4, where the feeding mechanism includes an inclined plate 7 fixedly disposed on the base 4, and an inclined direction of the inclined plate 7 faces the placement groove. Through the feed mechanism that sets up in this embodiment, can make in the processing, can be with the copper pipe fitting 1 that pegging graft and the production efficiency of rate pipe fitting preparation in advance, that is, great improvement copper aluminium pipe fitting 71.
In a further embodiment of the present invention, an intermittent blanking assembly is disposed below the inclined plate 7, and a receiving plate 61 is disposed on the fixed die holder 42, and when the receiving plate 61 abuts against the blanking assembly, the blanking assembly is triggered to perform blanking. Specifically, the receiving plate 61 provided in this embodiment is rotatably disposed on the telescopic block 6, and a torsion spring is disposed on a rotating shaft, so that the receiving plate 61 can move towards the blanking assembly and is abutted against the blanking assembly under the elasticity of the torsion spring.
In a further embodiment of the present invention, the blanking assembly includes a movable plate 72 rotatably disposed on the inclined plate 7, and a baffle 721 is fixedly disposed at one end of the movable plate 72, and one end of the baffle 721 protrudes out of the inclined plate 7 and baffles the copper-aluminum tube 71.
Further, one end of the baffle 721 is rotatably provided with a driving rod 722, and one end of the driving rod 722 protrudes below the inclined plate 7, so that when the receiving plate 61 abuts against the driving rod 722, the baffle 721 is driven to move into the inclined plate 7 to release the baffle of the copper aluminum pipe 71. According to the embodiment, through the arranged blanking assembly, the copper aluminum pipe 71 which is well inserted can be orderly blanked, specifically, when the blanking assembly works, firstly the bearing plate 61 is under the elasticity of the torque spring of the bearing plate, the abutting block 611 can abut against the driving rod 722, then the baffle 721 can be driven to rotate along the shaft rotationally connected with the inclined plate 7 through extrusion, as shown in fig. 7, the baffle 721 moves downwards, namely, the copper aluminum pipe 71 above the inclined plate 7 cannot be separated, meanwhile, the driving rod 722 moves towards the direction of the inclined plate 7, the inclined plate 7 protrudes above the inclined plate 7, namely, the rest copper aluminum pipe 71 can be separated, namely, feeding can be orderly carried out one by one.
Specifically, in order to further improve stability between the copper pipe fitting 1 and the aluminum pipe 2 in this embodiment, the supporting component is provided on the telescopic block 6 and the fixed die holder 42, and the supporting component can make two copper pipes and the aluminum pipe 2 which are inserted after the equipment operates, so that stability between the two copper pipes and the aluminum pipe 2 can be greatly reduced, welding of a welding mechanism of the copper pipe fitting and the aluminum pipe 2 is facilitated, extrusion of the telescopic block 6 is facilitated, and continuous extrusion can be performed between the copper pipe fitting 1 and the aluminum pipe 2 when the two telescopic blocks 6 are extruded, namely, production quality of the copper aluminum pipe fitting 71 can be greatly improved.
And the abutting component can be driven and extruded through the movement of the expansion plate 413, so that the use of a driving source can be reduced, and the automation degree is high.
Specifically, the abutting component comprises an extrusion rod 82 which is arranged on the fixed die holder 42 in a sliding manner, a hinge rod 84 is rotationally arranged on the extrusion rod 82, the hinge rod 84 is rotationally arranged on the telescopic block 6 and the fixed die holder 42, the other end of the hinge rod 84 is rotationally provided with an abutting rod 85, one end of the abutting rod 85 is inserted into the placing groove, a guide rod 83 is also slidingly arranged on the fixed die holder 42, the guide rod 83 is movably connected with the extrusion rod 82,
specifically, the extrusion chute 831 is formed on the guide rod 83, one end of the extrusion rod 82 is rotatably disposed in the extrusion chute 831, the extrusion chute 831 formed on the guide rod 83 is further connected with the buffer slot 8301, and the extrusion rod 82 on the telescopic block 6 can be inserted into the buffer slot 8301.
In this embodiment, the first telescopic rod 5 is further disposed on the base 4, and the telescopic end of the first telescopic rod 5 is provided with the telescopic shaft 51, and after the telescopic shaft 51 stretches, the extrusion block 411 and the telescopic block 6 can be driven to move synchronously towards the direction of the fixed die holder 42, so as to complete extrusion
And the upper fixing frame 41 is provided with a second telescopic rod 412, and the telescopic end passes through the upper fixing frame 41 and is connected to the telescopic plate 413, i.e. the telescopic plate 413 can be driven to move up and down.
When the telescopic copper pipe fitting is used, firstly, the copper pipe fitting 71 after shrinkage is inserted into the hole of the aluminum pipe 2, then the copper aluminum pipe fitting 71 after insertion is placed on the inclined plate 7 one by one, then the inclined plate 7 is provided with a blanking component for blocking, then a starting device is started, firstly, before the telescopic plate 413 moves downwards, the supporting plate 61 is in a stretching state, the abutting block 611 on the supporting plate 61 abuts against the driving rod 722, then the copper aluminum pipe fitting 71 on the inclined plate 7 slides into the placing groove through the supporting plate 61, then the second telescopic rod 412 is started, the lower telescopic plate 413 moves downwards and extrudes the supporting plate 61, then the supporting plate 61 gradually rotates along a shaft which rotates along the fixed die holder 42, during rotation, the transmission rod 81 is gradually extruded, the transmission rod 83 is gradually driven to move under the extrusion of the transmission rod 81, as shown in fig. 5 and 6, during upward movement, the extrusion rod 82 is gradually extruded to the extrusion rod 82 gradually, then the transmission rod 82 is extruded to the other side, and then the other end of the transmission rod 85 can be abutted against the pipe fitting 2, and the other end of the transmission rod can be abutted against the pipe fitting 2, and the transmission rod 85 can be further moved in the same direction as the movement, and the transmission rod can be abutted against the transmission rod 1, and the transmission rod can be moved in the movement of the opposite directions and the movement of the transmission rod 1, the welding of the welding mechanism is convenient, then after pushing down in place, the heating mechanism on the expansion plate 413 starts to operate, after waiting to heat, first telescopic rod 5 starts to operate, then drive the connecting plate 62 motion that is connected, namely, can drive extrusion piece 411 and expansion piece 6 synchronous motion, can drive the aluminum pipe 2 synchronous motion that is in the standing groove that expansion piece 6 offered, namely, can drive aluminum pipe 2 and extrude towards the copper pipe, finally form the extrusion piece, after the extrusion is accomplished, the second telescopic rod 412 is in the upward motion, namely, can drive the expansion plate 413 upward motion that is connected, then take out devices such as extrusion's copper aluminium pipe fitting 71, take out the mode accessible in the prior art, move up at the expansion plate in-process, make the conflict piece 611 conflict on accepting plate 61 gradually, after the expansion plate moves up in place, under the elasticity of its moment spring, can make the conflict piece 611 conflict piece on actuating lever 722, then through the extrusion, can drive the baffle piece 721 along the extrusion of extrusion with 7 rotation of plate 7, can drive the expansion plate 721 and carry out the upward motion along the inclined plate 7 as shown in the inclined plate 71, can carry out the inclined plate 71 to the inclined plate 71, can be carried out the inclined plate 71 according to the principle that the inclined plate 71 is followed, can realize the inclined plate 71 is down, the inclined plate 7 is moved, the inclined plate is carried out, the inclined plate 7 is inclined down, can be down to the inclined plate 7 is down to the inclined plate is down, and the inclined plate is down, can be down to the inclined down, the inclined plate 7 is down to the inclined plate is down, can be down to the inclined to the copper 7.
The invention also provides equipment for necking the copper pipe, which is characterized by comprising a fixed seat 9, wherein the fixed seat 9 is provided with a fixed block 92, the fixed block 92 is provided with a fixed cylinder 921, the middle shaft of the fixed cylinder 921 is fixedly provided with a limit column 1002, and an elliptical groove 9211 is formed in the fixed cylinder 921;
the rotary column 10 is further included, two extrusion columns 1001 are slidably arranged in the rotary column 10 along the radial direction, the extrusion columns 1001 are slidably arranged in sliding grooves 1003 formed in the rotary column 10, plug grooves 1004 are formed between the two extrusion columns 1001, and the limit columns 1002 are plugged into the plug grooves 1004.
In a further embodiment of the present invention, a side plate 91 is disposed above the fixed seat 9, and the rotating column 10 passes through the fixed block 92 and is in transmission connection with a driving motor 93 disposed below the fixed seat 9.
In a further embodiment of the present invention, tapered grooves 10011 are formed on each of the two squeeze columns 1001. The tapered groove 10011 is provided in this embodiment, so that when the extrusion column 1001 rotates, the copper tube can form the tapered portion 11 of the tapered groove 10011, and the straight tube portion 13 of the copper tube and the connecting portion 12 formed after shrinkage cavity can be better joined.
In a further embodiment of the present invention, the inner diameter of the copper pipe fitting 1 is larger than the diameter of the limiting post 1002, and the outer diameter of the copper pipe fitting 1 is smaller than the inner diameter of the insertion groove 1004.
The working principle of the invention is as follows: firstly, the copper pipe fitting 1 is inserted into the inserting groove 1004 formed between the two extrusion columns 1001, then the copper pipe fitting is sleeved on the limiting column 1002, then the driving motor 93 is started, the driving motor 93 rotates to drive the rotating column 10 connected in a transmission mode to rotate, then the rotating column 10 and the extrusion column 1001 are driven to rotate, because the extrusion column 1001 is arranged in the elliptical groove 9211, when the extrusion column 1001 rotates, the copper pipe fitting can rotate along the inner wall surface of the extrusion groove, then the extrusion column 1001 is driven to rotate along the radial direction of the rotating column 10 under the rotation of the inner wall of the elliptical groove 9211, namely, the internal copper pipe is driven to move, at the moment, the extrusion column 1001 can periodically move towards the center axis, and because the center axis of the position of the limiting column 1002 does not change during rotation, the copper pipe can be extruded under the extrusion of the extrusion column 1001, so that the copper pipe can be extruded towards the direction of the limiting column 1002, namely, the copper pipe can be tightly attached to the limiting column 1002, and then shrinkage cavity treatment can be carried out along with the rotation.
The copper-aluminum pipe 71 joint prepared by the preparation process comprises an aluminum pipe 2 and a copper pipe 1, wherein the copper pipe 1 comprises a straight barrel part 13, at least one end of the straight barrel part 13 is provided with a connecting part 12, and the straight barrel part 13 is connected with the aluminum pipe 2 through the connecting part 12;
the wall thickness of the connecting part 12 is equal to the wall thickness of the straight tube part 13, the wall thickness of the connecting part 12 at one end of the aluminum tube 2 is consistent with the wall thickness of the copper tube, and then the connecting part 12 is inserted into the aluminum tube 2, namely, the connection of the aluminum tube 2 and the copper tube is realized under the condition that the wall thickness of the copper tube is not reduced, so that the strength of the copper-aluminum joint is integrally increased; the strength of the copper-aluminum joint is not required to be protected by adding a protection frame; namely, the service life of the copper-aluminum pipe fitting 71 is greatly prolonged, and the cracking and leakage risks of the copper-aluminum joint can be effectively avoided.
Then, a tapered portion 11 is formed between the straight tube portion 13 and the connecting portion 12. That is, in the present embodiment, a tapered copper pipe wall is formed between the straight cylindrical portion 13 and the connection portion 12, that is, not only facilitating the insertion of the copper pipe but also facilitating the welding operation between the copper pipe and the aluminum pipe 2.
Further, the wall thickness of the connection portion 12 of the copper-aluminum pipe 71 in this embodiment is 0.6mm, the outer diameter of the straight tube portion 13 is 7mm, the outer diameter of the aluminum pipe 2 is 7mm, the wall thickness is 1mm, the outer diameter of the connection portion 12 is 5mm, the inner diameter is 3.8mm, and a notch 3 is formed at the position where the aluminum pipe 2 is connected with the copper pipe 1.
Further, the wall thickness of the conical portion 11 is equal to the wall thickness of the straight tube portion 13, an inner conical surface 21 is formed at least one end of the aluminum tube 2, the inner conical surface 21 is adapted to the conical portion 11, as shown in fig. 18, the conical portion 11 of h2 is inclined inwards in the axial direction of the straight tube portion 13, when the connecting portion 12 is inserted into the aluminum tube 2, the conical surface can be attached to the inner conical surface 21, the stability of the device is integrally improved, and the conical portion 11 and the adapted inner conical surface 21 provided in the invention can facilitate insertion of a copper tube and simultaneously improve the processing speed.
In order to further improve the flatness and connection stability of the welded position of the copper pipe and the aluminum pipe 2, in the invention, a part of the end part of the aluminum pipe 2 connected with the copper pipe 1 is subtracted, namely, a notch 3 is formed at the position of the aluminum pipe 2 connected with the copper pipe 1, so that a notch a appears at the position of the copper pipe connected with the aluminum pipe 2, as shown in fig. 19, namely, the welded position is fully filled in the notch a when welding is carried out, thereby not only improving the stability between the copper pipe and the aluminum pipe 2, but also improving the flatness of the position of the connection surface.
Specifically, the position of the connection portion 12 is the position h1 shown in fig. 18, the outer diameter size of the connection portion 12 is equal to the inner diameter size of the aluminum pipe 2, and the connection portion 12 is inserted into the aluminum pipe 2.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.
Claims (4)
1. A copper-aluminum joint preparation device is used for a copper-aluminum joint preparation process, which comprises the following steps,
s1: reducing the hole, namely reducing the hole at one end of the copper pipe fitting (1) to be welded;
s2: inserting, namely inserting the copper pipe after shrinkage into the aluminum pipe (2);
s3: tightly propping, namely placing a copper aluminum pipe (71) formed after plugging in welding equipment, and tightly propping the copper pipe (1) and the aluminum pipe (2) through a tightly propping assembly;
s4: heating, wherein heating treatment is carried out at the connecting position between the copper aluminum pipe (71);
s5: extruding, wherein the copper pipe fitting (1) is abutted against the aluminum pipe (2) through an extruding mechanism in the welding equipment;
s6: welding, namely welding the connection position of the copper pipe fitting (1) and the aluminum pipe (2) through a welding mechanism on welding equipment, and is characterized by comprising a base (4) and a fixed die holder (42) arranged on the base (4), wherein a placing groove for placing the copper aluminum pipe fitting (71) is further formed in the fixed die holder (42);
an upper fixing frame (41) is arranged on the fixed die holder (42), a telescopic plate (413) is arranged on the upper fixing frame (41), and the telescopic plate (413) moves downwards to extrude and fix a copper-aluminum pipe fitting (71) in the placing groove;
a heating mechanism is arranged on the expansion plate (413), and an expansion block (6) corresponding to the extrusion block (411) is also arranged on the base (4);
the feeding mechanism is fixedly arranged on the base (4), and comprises an inclined plate (7) fixedly arranged on the base (4), and the inclined direction of the inclined plate (7) faces the placing groove;
an intermittent blanking assembly is arranged below the inclined plate (7), a bearing plate (61) is arranged on the fixed die holder (42), and the blanking assembly is triggered to perform blanking when the bearing plate (61) is abutted against the blanking assembly; a transmission rod 81 is arranged below the bearing plate (61);
the lower expansion plate (413) is driven to move downwards and extrude the bearing plate (61), then the bearing plate (61) gradually rotates along a shaft which rotates along the direction of the fixed die holder (42) under the extrusion of the expansion plate (413), when the bearing plate rotates, the transmission rod (81) is gradually extruded, and the guide rod (83) which is in rotary connection is gradually driven to move under the extrusion of the transmission rod (81);
the telescopic block (6) and the fixed die holder (42) are provided with a propping assembly, and after the equipment runs, the propping assembly can further prop up the two inserted copper pipes and the aluminum pipe (2);
the abutting assembly comprises an extrusion rod (82) which is arranged on the fixed die holder (42) in a sliding manner, a hinge rod (84) is rotationally arranged on the extrusion rod (82), the hinge rod (84) is rotationally arranged on the telescopic block (6) and the fixed die holder (42), the other end of the hinge rod (84) is rotationally provided with an abutting rod (85), one end of the abutting rod (85) is inserted into the placing groove, a guide rod (83) is also slidingly arranged on the fixed die holder (42), and the guide rod (83) is movably connected with the extrusion rod (82);
an extrusion chute (831) is formed in the guide conveying rod (83), one end of the extrusion rod (82) is rotatably arranged in the extrusion chute (831), the extrusion rod (82) positioned on the telescopic block (6) is inserted into the extrusion chute (831) formed in the guide conveying rod (83) and is further communicated with a buffer groove (8301), and the extrusion rod (82) positioned on the telescopic block (6) can be inserted into the buffer groove (8301).
2. The copper-aluminum joint preparation device according to claim 1, wherein the telescopic block (6) and the extrusion block (411) can move towards the upper fixing frame (41) at the same time, and the telescopic block (6) and the extrusion block (411) are fixedly connected through a connecting plate (62).
3. A copper-aluminum joint preparation device according to claim 2, wherein the blanking assembly comprises a baffle block (721) rotatably arranged on the inclined plate (7), and one end of the baffle block (721) protrudes out of the inclined plate (7) and baffles the copper-aluminum pipe (71).
4. A copper-aluminum joint preparation device according to claim 3, wherein one end of the baffle block (721) is rotatably provided with a driving rod (722), one end of the driving rod (722) protrudes below the inclined plate (7), and when the bearing plate (61) is abutted against the driving rod (722), the baffle block (721) is driven to move into the inclined plate (7) so as to release the baffle of the copper-aluminum pipe (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310461718.XA CN116728004B (en) | 2023-04-26 | 2023-04-26 | Copper-aluminum joint preparation process and preparation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310461718.XA CN116728004B (en) | 2023-04-26 | 2023-04-26 | Copper-aluminum joint preparation process and preparation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116728004A CN116728004A (en) | 2023-09-12 |
| CN116728004B true CN116728004B (en) | 2024-03-15 |
Family
ID=87906890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310461718.XA Active CN116728004B (en) | 2023-04-26 | 2023-04-26 | Copper-aluminum joint preparation process and preparation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116728004B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2000078A1 (en) * | 1968-01-08 | 1969-08-29 | Tarzian George M | VIBRATORY DEVICE FOR THE FEEDING OF PARTS |
| CN2781147Y (en) * | 2005-04-20 | 2006-05-17 | 河南科隆电器股份有限公司 | Insertion copper aluminium pipe joint |
| CN1959172A (en) * | 2006-09-20 | 2007-05-09 | 左铁军 | Inner diameter of copper aluminum joint, copper aluminum joint with diameter being equal to inner diameter of aluminum pipe, and preparation method |
| CN110906070A (en) * | 2019-11-28 | 2020-03-24 | 浙江宏泽自动化设备有限公司 | Copper-aluminium welded pipe |
| CN210254668U (en) * | 2019-06-30 | 2020-04-07 | 合肥太通制冷科技有限公司 | Resistance butt welder mould with quick clamping and spacing |
| CN211890786U (en) * | 2019-12-06 | 2020-11-10 | 浙江华顺金属材料有限公司 | Coil storage drying rack |
| CN213915535U (en) * | 2020-11-12 | 2021-08-10 | 河南中原天鹅新材料有限公司 | Efficient profile extrusion equipment |
| CN113562475A (en) * | 2021-09-24 | 2021-10-29 | 徐州鸿誉环境科技有限公司 | Anti-accumulation pipe transportation dumping device and using method thereof |
-
2023
- 2023-04-26 CN CN202310461718.XA patent/CN116728004B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2000078A1 (en) * | 1968-01-08 | 1969-08-29 | Tarzian George M | VIBRATORY DEVICE FOR THE FEEDING OF PARTS |
| CN2781147Y (en) * | 2005-04-20 | 2006-05-17 | 河南科隆电器股份有限公司 | Insertion copper aluminium pipe joint |
| CN1959172A (en) * | 2006-09-20 | 2007-05-09 | 左铁军 | Inner diameter of copper aluminum joint, copper aluminum joint with diameter being equal to inner diameter of aluminum pipe, and preparation method |
| CN210254668U (en) * | 2019-06-30 | 2020-04-07 | 合肥太通制冷科技有限公司 | Resistance butt welder mould with quick clamping and spacing |
| CN110906070A (en) * | 2019-11-28 | 2020-03-24 | 浙江宏泽自动化设备有限公司 | Copper-aluminium welded pipe |
| CN211890786U (en) * | 2019-12-06 | 2020-11-10 | 浙江华顺金属材料有限公司 | Coil storage drying rack |
| CN213915535U (en) * | 2020-11-12 | 2021-08-10 | 河南中原天鹅新材料有限公司 | Efficient profile extrusion equipment |
| CN113562475A (en) * | 2021-09-24 | 2021-10-29 | 徐州鸿誉环境科技有限公司 | Anti-accumulation pipe transportation dumping device and using method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116728004A (en) | 2023-09-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112207423B (en) | Thin-walled tube friction welding anti-pinch flat supporting piece convenient to adjust | |
| CN105728519B (en) | A kind of body pipe bending mechanism of heat exchanger | |
| CN110797726B (en) | Wiring terminal correction molding press and using method | |
| CN116728004B (en) | Copper-aluminum joint preparation process and preparation device | |
| CN1695845A (en) | Sealing machine for end face of steel-plastic composite tube | |
| WO2023061175A1 (en) | Large-set pipe bending apparatus, and implementation method therefor | |
| CN114472731B (en) | Pipe end machining method of heater pipe | |
| CN106964665A (en) | A kind of U-tube chipless forming integrated machine and its method of work | |
| CN105014941A (en) | PVC-O (oriented polyvinyl chloride) pipe magnetic suction controlled radial stretching device and processing method thereof | |
| CN219004321U (en) | Double-end pipe expander | |
| CN206597838U (en) | A kind of Workpiece clamping device of electric tube expander | |
| CN117341190A (en) | Automobile wire harness heat shrinkage pipe sleeving device | |
| CN200974330Y (en) | Thermoplastic plastics tube right angle flanger | |
| CN211363469U (en) | Automatic flaring equipment applicable to pipe fitting processing of different calibers | |
| CN212733851U (en) | Flaring device for bell mouth of copper pipe | |
| CN1736629A (en) | Contracting in the heat pipe manufacture process, closing device and processing method | |
| CN109821961B (en) | Metal double-layer pipe composite forming device and method | |
| CN109228283B (en) | Copper pipe assembly detection printing equipment | |
| CN210877820U (en) | Processing equipment for steel pipe production | |
| CN215143589U (en) | Oil cylinder synchronizing mechanism for refrigerator liner end pressing table bending machine | |
| CN2422124Y (en) | Plastic friction butt welding machine main engine | |
| JPH09192761A (en) | Method and device for flaring | |
| CN219233752U (en) | Necking equipment for thinning pipe wall of copper pipe end | |
| CN219666487U (en) | Automatic screw-in device for coil press seal of large-moment container | |
| CN117613632A (en) | Outdoor power engineering cable crimping machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |