A special-shaped copper tube processing equipment and processing method for copper-aluminum composite bar

Abstract

The present invention provides a special-shaped copper tube processing equipment for copper-aluminum composite bars and a processing method thereof, and relates to the technical field of copper tube rolling processing. The special-shaped copper tube processing equipment for copper-aluminum composite bars comprises a machine tool, and the upper surface of the machine tool is provided with a rolling device, a driving device, a flame spraying device and a straightening device. The special-shaped copper tube processing equipment for copper-aluminum composite bars uses a flame spraying component to continuously heat the copper tube to prevent loss of temperature, and then cooperates with the inner lining component to resist the heated inner wall, so as to solve the problem that the inner wall of the copper tube lacks support, resulting in uncontrollable depressions, protrusions and falling metal impurities on the inner wall during rolling, and prevents it from entering the medium-temperature brittle zone and causing slipping or rigid fracture during compression due to loss of temperature.

Description

Technical Field

[0001] The invention relates to the technical field of copper tube rolling processing, in particular to special-shaped copper tube processing equipment for copper-aluminum composite bars and a processing method thereof. Background Art

[0002] Copper-aluminum composite busbar is commonly known as copper-clad aluminum busbar. It is a double-layer metal composite material with aluminum as the matrix and copper tube as the outer layer to form a tight metallurgical bond. According to actual needs, various special-shaped copper tubes of different shapes are often used to wrap the outside. This special-shaped copper tube usually needs to go through smelting, casting, rolling, cutting and other processes during the production and processing. The common copper tube rolling process is to repeatedly extrude the preheated copper tube through multiple sets of rollers to achieve the effect of changing the shape of the copper tube. The plasticity of the copper tube is extremely low at 200°C to 500°C, and the elongation at about 500°C is less than 10%, that is, there is a medium-temperature brittle zone. Once entering the medium-temperature brittle zone, the plasticity of the copper tube will deteriorate. During the rolling process, the material cannot flow and deform evenly, resulting in cracks on the surface. These cracks will not only affect the appearance quality of the copper tube, but may also become stress concentration points, reducing the strength and service life of the copper tube, and causing defects such as looseness and holes inside the copper tube, weakening the structural integrity of the copper tube, making it more prone to rupture in subsequent use. Therefore, it is more appropriate to keep the final rolling temperature between 600℃ and 800℃.

[0003] However, during the copper tube rolling process, since the copper tube is exposed for a long time, if the operation is not timely or the ambient temperature is low, the preheated copper tube will continue to dissipate heat, and enter the temperature range of the medium-temperature brittle zone, and the hardness will gradually increase, resulting in greater rolling resistance. If the temperature is too low, the metal tube will slip or crack during the pressure process, and may even cause damage to the roller, which is not conducive to the hole expansion process. In addition, due to the lack of support for the inner wall of the copper tube during the rolling process, the inner wall of the copper tube will produce uncontrollable depressions and protrusions during the roller extrusion process, which affects the product quality and limits its promotion and popularization in practical applications. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the present invention provides a special-shaped copper tube processing equipment and a processing method for copper-aluminum composite bars, which solves the problem that the inner wall of the copper tube lacks support, resulting in uncontrollable depressions, protrusions and falling metal impurities on the inner wall during rolling, and prevents it from entering the medium-temperature brittle zone and causing slipping or rigid cracking during compression due to temperature loss.

[0006] (II) Technical solution

[0007] To achieve the above purpose, the present invention is implemented through the following technical scheme: a special-shaped copper tube processing equipment for copper-aluminum composite bar, comprising:

[0008] A machine tool, wherein a rolling device, a driving device, a flame spraying device and a straightening device are arranged on the upper surface of the machine tool;

[0009] The rolling device comprises a first mounting frame, two No. 1 hydraulic cylinders, a slide, two rollers and a fixed frame, the top of the first mounting frame is fixedly connected to the No. 1 hydraulic cylinder, the lower end of the No. 1 hydraulic cylinder is fixedly connected to the slide, the interior of the slide is rotatably connected to the roller, the interior of the fixed frame is rotatably connected to the roller, a roller groove is provided in the middle of the roller, and a plurality of anti-slip strips are provided along the circumferential direction on the outer side of the roller groove;

[0010] The flame spraying device includes a flame spraying assembly, a lining assembly and a moving assembly. The flame spraying assembly includes a slide plate, a gas tank, a valve, a gas pipe and an electromagnetic igniter. The front surface of the slide plate is fixedly connected to the gas tank, the output end of the gas tank is fixedly connected to the valve, the other end of the valve is fixedly connected to the gas pipe, and the end of the gas pipe away from the valve passes through the slide plate and is connected to the electromagnetic igniter. The lining assembly includes a fixed disk, a fire pipe, a lining block and a No. 1 bolt. The rear surface of the fixed disk is fixedly connected to the fire pipe, and the fire pipe is provided with a plurality of flame spraying holes penetrating the fire pipe. The lining block is detachably connected to the fire pipe through the No. 1 bolt. The moving assembly includes a double-headed reversible motor, a No. 1 bevel gear, a No. 2 bevel gear, a No. 1 screw and a threaded sleeve. The output end of the double-headed reversible motor is fixedly connected to the No. 1 bevel gear, the side surface of the No. 1 bevel gear is meshed and connected to the No. 2 bevel gear, the interior of the No. 2 bevel gear is fixedly connected to the No. 1 screw, and the side surface of the fixed disk is threadedly connected to the threaded sleeve.

[0011] Preferably, the upper surface of the machine tool is fixedly connected to the first mounting frame, the two sides of the slide are slidably connected to the first mounting frame, and the two sides of the fixed frame are fixedly connected to the first mounting frame.

[0012] Preferably, the driving device includes a driving motor, a No. 1 gear, a No. 2 gear, a telescopic coupling and a rotating shaft. The upper surface of the machine tool is fixedly connected to the driving motor, the output end of the driving motor is fixedly connected to the No. 1 gear, the side surface of the No. 1 gear is meshed with the No. 2 gear, and the left end of the No. 2 gear is fixedly connected to the telescopic coupling.

[0013] Preferably, the two rollers are symmetrically distributed up and down, the left end of the telescopic coupling is fixedly connected to the upper roller, the left end of the No. 1 gear is fixedly connected to the rotating shaft, the left end of the rotating shaft is fixedly connected to the lower roller, and a second mounting frame is fixedly connected to the upper surface of the machine tool, the interior of the second mounting frame is rotatably connected to the No. 1 gear, the No. 2 gear, and the rotating shaft, and a limiting groove is provided on the left side of the second mounting frame for limiting the left and right shaking of the telescopic coupling so that it remains stable during rotation and providing displacement space for vertical rise when its left end is pulled.

[0014] Preferably, the internal annular array of the fixed plate is provided with No. 2 bolts, the ends of the No. 2 bolts are threadedly connected to the slide plate, the electromagnetic igniter is located inside the burning tube, and a flame stabilizing assembly is provided on the outer wall of the burning tube. The flame stabilizing assembly includes a flame stabilizing ring and an ash keepout ring, the rear end of the flame stabilizing ring is fixedly connected to the ash keepout ring, the inner wall of the flame stabilizing ring is designed to be an arc-shaped concave surface, and the interior of the ash keepout ring is provided with filter holes.

[0015] Preferably, the front surface of the skateboard is fixedly connected to the double-headed reversible motor, the side surface of the No. 1 screw is rotatably connected to the skateboard, and the end of the threaded sleeve away from the No. 1 screw is fixedly connected to the first mounting frame.

[0016] Preferably, the straightening device includes a reciprocating component and two pairs of left-right symmetrically distributed correcting components, the reciprocating component includes a reversible motor, a No. 2 screw and a slider, and the correcting component includes a No. 2 hydraulic cylinder, a U-shaped frame and an extrusion wheel.

[0017] Preferably, the output end of the reversible motor is fixedly connected to the No. 2 screw, the side surface of the No. 2 screw is threadedly connected to the slider, the inner wall of the slider is fixedly connected to the No. 2 hydraulic cylinder, the end of the No. 2 hydraulic cylinder away from the slider is fixedly connected to the U-shaped frame, the interior of the U-shaped frame is rotatably connected to the extrusion wheel, the lower surface of the U-shaped frame is fixedly connected to a limit block, the interior of the slider is provided with a slide groove, the inner wall of the slide groove is slidably connected to the limit block, the upper surface of the machine tool is provided with a reinforcement block, the side surface of the No. 2 screw is rotatably connected to the reinforcement block, the upper surface of the machine tool is provided with a T-shaped slide rail, and the lower surfaces of the slide plate, slider and slider are all slidably connected to the T-shaped slide rail.

[0018] Preferably, a bracket is fixedly connected to the upper surface of the machine tool, a cam is rotatably connected to the inner wall of the bracket, and a copper tube to be processed is provided on the side surface of the cam.

[0019] A method for using a special-shaped copper tube processing device for a copper-aluminum composite bar comprises the following steps:

[0020] S1. Place one end of the preheated copper tube to be processed on the concave wheel, and the other end between the two rollers. At this time, the slide is at the front end of the T-shaped slide rail.

[0021] S2, insert the fixing plate into the electromagnetic igniter and install it on the slide plate by screwing in the No. 2 bolt, and then the electromagnetic igniter is located inside the burning tube;

[0022] S3, start the double-headed reversible motor, and through the meshing of the No. 1 bevel gear and the No. 2 bevel gear, the No. 2 bevel gear makes the No. 1 screw rotate in the threaded sleeve and pull the burning tube through the inside of the copper tube to be processed, and the rear end of the burning tube passes through between the two rollers, and then the liner block is rotated and screwed into the rear end of the burning tube, and then two No. 1 bolts are screwed in to install the liner block at the end of the burning tube, ensuring that the liner block is away from the preheated copper tube to be processed during the installation process to prevent burns and improve the safety of the rolling process;

[0023] S4, start the No. 1 hydraulic cylinder to drive the slide to press the upper roller down to the outer wall of the copper tube to be processed, so that the two rollers clamp the copper tube to be processed, and then start the double-headed reversible motor to reverse, so that the No. 1 screw pushes the threaded sleeve and then the burning pipe on the slide pulls the lining block to the rear end of the copper tube to be processed;

[0024] S5. Open the valve, start the electromagnetic igniter, and let the gas in the gas tank flow through the gas pipe and the electromagnetic igniter to be ejected and ignited. The end of the flame passes through the flame-spraying hole, so that the flame ejected from the flame-spraying hole is radially attached to the concave inner wall of the flame-stabilizing ring and is free to the opening edge of the flame-stabilizing ring, so that the flame heats the copper tube to be processed larger and more evenly, thereby reducing the waste of heat. At the same time, the ash-blocking ring and the flame-stabilizing ring work together to intercept the incompletely burned fuel when it refluxes in the copper tube to be processed, so as to achieve secondary combustion and filter the dust generated by combustion;

[0025] S6, start the driving motor to drive the No. 1 gear to rotate, the No. 1 gear drives the No. 2 gear and the rotating shaft to rotate at the same time, the No. 2 gear drives the telescopic coupling to rotate, and the telescopic coupling and the rotating shaft drive the two rollers to rotate synchronously, so as to realize that the copper tube to be processed is rolled while being transported to the rear, and the friction between the roller and the copper tube to be processed is increased by the anti-slip strip, so that the inner wall of the copper tube to be processed is squeezed by the lining block during the backward movement, so as to achieve shaping;

[0026] S7. When the copper tube to be processed passes between the two extrusion wheels, the reversible motor is started to drive the No. 2 screw to continuously rotate forward and reverse, so that the slider is pulled by the No. 2 screw to realize reciprocating motion, and the two extrusion wheels continuously correct and straighten the copper tube to be processed to improve product quality.

[0027] (III) Beneficial effects

[0028] The present invention provides a special-shaped copper tube processing equipment and a processing method for copper-aluminum composite bars, which have the following beneficial effects:

[0029] 1. The special-shaped copper tube processing equipment for copper-aluminum composite bars provides a supporting force for the inner wall of the copper tube by arranging the inner lining block inside the copper tube, reducing the irregular deformation of the inner wall of the copper tube during the rolling process, and controlling the thickness of the tube wall more accurately, further reducing unnecessary depressions and protrusions caused by the extrusion of the inner wall of the copper tube, making the inner wall of the tube smoother and flatter, and scraping off the metal impurities dropped from the inner wall of the tube during the extrusion process, so that it is easier to insert the aluminum material into the copper tube to form a copper-aluminum composite bar, and the inner wall of the copper tube can be heated by a flame spray device, so that the copper tube is continuously heated by the principle of heat transfer, so that the temperature of the copper tube is maintained between 600℃ and 800℃ during the rolling process, reducing the hardness of the copper tube caused by heat loss and thus being difficult to be pushed, making the copper tube more plastic and easier to be squeezed and deformed by the roller, not only reducing the resistance to advancement, but also reducing the energy consumption during transportation, thereby improving the product quality, and at the same time, a plurality of anti-slip strips are arranged on the side surface of the roller, so that the outer wall and the roller are less likely to slip during the advancement of the copper tube.

[0030] 2. The special-shaped copper tube processing equipment for the copper-aluminum composite bar has a flame stabilizing assembly arranged on the burning tube. The unique arc-shaped concave design of the flame stabilizing ring can make the flame ejected from the fire hole radially adhere to the concave inner wall of the flame stabilizing ring and move freely to the opening edge of the flame stabilizing ring, so that the heating surface of the copper tube by the flame is larger and more uniform, thereby reducing the waste of heat. Under the joint action of the ash retaining ring and the flame stabilizing ring, the incompletely burned fuel can be effectively intercepted when it refluxes in the copper tube to achieve secondary combustion, which greatly improves the utilization rate of the fuel and saves fuel. At the same time, the dust generated by the combustion is filtered, and the installation and disassembly of the inner liner block is simple and convenient. The cross-sectional shape of the tube cavity can be controlled by replacing inner liner blocks of different models. At the same time, it also has the effect of expanding the hole, so as to manufacture various types of special-shaped copper tubes and improve the diversity of functions.

[0031] 3. The special-shaped copper tube processing equipment for copper-aluminum composite bars uses the moving components on the flame spray device to keep the liner block away from the preheated copper tube during installation, thereby protecting the safety of operators and preventing burns caused by the high temperature of hot castings and too close distance, thereby improving the safety of the rolling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 It is a partial structural schematic diagram of the present invention;

[0034] Figure 3It is a schematic structural diagram of the flame spraying device of the present invention;

[0035] Figure 4 It is a schematic diagram of the internal structure of the fire tube of the present invention;

[0036] Figure 5 It is a schematic diagram of the roller structure of the present invention;

[0037] Figure 6 It is a schematic structural diagram of the straightening device of the present invention;

[0038] Figure 7 for Figure 4 A schematic diagram of the structure enlargement in the middle;

[0039] Figure 8 for Figure 6 A magnified schematic diagram of the structure at B in the middle;

[0040] Fig. 9 for Figure 3 A magnified schematic diagram of the structure at C in the middle;

[0041] Fig.10 for Figure 1 A magnified schematic diagram of the structure at D in the middle;

[0042] Fig.11 for Figure 1 The enlarged schematic diagram of the structure at E in the middle;

[0043] Fig.12 It is a schematic diagram of the structure of the flame stabilizing assembly of the present invention.

[0044] Among them, 1. machine tool; 2. rolling device; 3. driving device; 4. flame spraying device; 5. straightening device; 6. first mounting frame; 7. No. 1 hydraulic cylinder; 8. slide; 9. roller; 10. fixed frame; 11. anti-slip strip; 12. driving motor; 13. No. 1 gear; 14. No. 2 gear; 15. telescopic coupling; 16. rotating shaft; 17. second mounting frame; 18. slide plate; 19. gas tank; 20. valve; 21. gas pipeline; 22. electromagnetic igniter; 23. fixed plate; 24. burning pipe; 25. flame hole; 26. Lining block; 27. No. 1 bolt; 28. No. 2 bolt; 29. ​​Double-head reversible motor; 30. No. 1 bevel gear; 31. No. 2 bevel gear; 32. No. 1 screw; 33. Threaded sleeve; 34. Reversible motor; 35. No. 2 screw; 36. Slider; 37. No. 2 hydraulic cylinder; 38. U-shaped frame; 39. Extrusion wheel; 40. Limit block; 41. Slide groove; 42. Reinforcement block; 43. T-shaped slide rail; 44. Bracket; 45. Concave wheel; 46. Copper tube to be processed; 47. Limit groove; 48. Flame stabilizing assembly; 49. Flame stabilizing ring; 50. Ash retaining ring. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1

[0046] like Figure 1 - Fig.12 As shown, an embodiment of the present invention provides a special-shaped copper tube processing equipment for copper-aluminum composite bars, including a machine tool 1, the upper surface of the machine tool 1 is provided with a rolling device 2, a driving device 3, a flame spraying device 4 and a straightening device 5, the upper surface of the machine tool 1 is fixedly connected to a bracket 44, the inner wall of the bracket 44 is rotatably connected to a concave wheel 45, and the side surface of the concave wheel 45 is provided with a copper tube 46 to be processed.

[0047] The rolling device 2 includes a first mounting frame 6, two No. 1 hydraulic cylinders 7, a slide 8, two rollers 9 and a fixed frame 10. The top of the first mounting frame 6 is fixedly connected to the No. 1 hydraulic cylinder 7, the lower end of the No. 1 hydraulic cylinder 7 is fixedly connected to the slide 8, the interior of the slide 8 is rotatably connected to the roller 9, the interior of the fixed frame 10 is rotatably connected to the roller 9, a roller groove is provided in the middle of the roller 9, and a plurality of anti-slip strips 11 are circumferentially provided on the outer side of the roller groove, the upper surface of the machine tool 1 is fixedly connected to the first mounting frame 6, the two sides of the slide 8 are slidably connected to the first mounting frame 6, and the two sides of the fixed frame 10 are fixedly connected to the first mounting frame 6.

[0048] The driving device 3 includes a driving motor 12, a No. 1 gear 13, a No. 2 gear 14, a telescopic coupling 15 and a rotating shaft 16. The upper surface of the machine tool 1 is fixedly connected to the driving motor 12, the output end of the driving motor 12 is fixedly connected to the No. 1 gear 13, the side surface of the No. 1 gear 13 is meshed with the No. 2 gear 14, the left end of the No. 2 gear 14 is fixedly connected to the telescopic coupling 15, the two rollers 9 are symmetrically distributed up and down, the left end of the telescopic coupling 15 is fixedly connected to the upper roller 9, the left end of the No. 1 gear 13 is fixedly connected to the rotating shaft 16, the left end of the rotating shaft 16 is fixedly connected to the lower roller 9, and a second mounting frame 17 is fixedly connected to the upper surface of the machine tool 1, and the interior of the second mounting frame 17 is rotatably connected to the No. 1 gear 13, the No. 2 gear 14, and the rotating shaft 16.

[0049] The flame spraying device 4 includes a flame spraying component, a lining component and a moving component. The flame spraying component includes a slide plate 18, a gas tank 19, a valve 20, a gas pipe 21 and an electromagnetic igniter 22. The front surface of the slide plate 18 is fixedly connected to the gas tank 19, the output end of the gas tank 19 is fixedly connected to the valve 20, the other end of the valve 20 is fixedly connected to the gas pipe 21, and the end of the gas pipe 21 away from the valve 20 passes through the slide plate 18 and is connected to the electromagnetic igniter 22. The lining component includes a fixed plate 23, a fire pipe 24, a lining block 26 and a No. 1 bolt 27. The rear surface of the fixed plate 23 is fixedly connected to the fire pipe 24. The fire pipe 24 is provided with a plurality of flame spraying holes 25 penetrating the fire pipe 24. The lining block 26 is detachably connected to the fire pipe 24 through the No. 1 bolt 27. The internal annular array of the fixed plate 23 is provided with a No. 2 bolt 28. The end of the No. 2 bolt 28 is threadedly connected to the slide plate 18. The electromagnetic igniter 22 is located at the fire pipe. 24, a flame stabilizing assembly 48 is arranged on the outer wall of the burning tube 24, the flame stabilizing assembly 48 includes a flame stabilizing ring 49 and an ash retaining ring 50, the rear end of the flame stabilizing ring 49 is fixedly connected to the ash retaining ring 50, the inner wall of the flame stabilizing ring 49 is designed as an arc-shaped concave surface, and the interior of the ash retaining ring 50 is provided with a filter hole, the moving assembly includes a double-headed reversible motor 29, a first bevel gear 30, a second bevel gear 31, a first screw 32 and a threaded sleeve 33, the output of the double-headed reversible motor 29 The end is fixedly connected to the No. 1 bevel gear 30, the side surface of the No. 1 bevel gear 30 is meshed with the No. 2 bevel gear 31, the interior of the No. 2 bevel gear 31 is fixedly connected to the No. 1 screw 32, the side surface of the fixed plate 23 is threadedly connected to the threaded sleeve 33, the front surface of the skateboard 18 is fixedly connected to the double-headed reversible motor 29, the side surface of the No. 1 screw 32 is rotatably connected to the skateboard 18, and the end of the threaded sleeve 33 away from the No. 1 screw 32 is fixedly connected to the first mounting frame 6.

[0050] In this embodiment, one end of the preheated copper tube 46 to be processed is placed on the concave wheel 45, and the other end is placed between the two rollers 9. At this time, the slide plate 18 is located at the front end of the T-shaped slide rail 43, and then the No. 2 bolt 28 is screwed in to insert the fixed plate 23 into the electromagnetic igniter 22 and install it on the slide plate 18. At this time, the electromagnetic igniter 22 is located inside the burning tube 24, and the double-headed reversible motor 29 is started. Through the engagement of the No. 1 bevel gear 30 and the No. 2 bevel gear 31, the No. 1 screw 32 is rotated in the threaded sleeve 33 and the burning tube 24 is pulled through the inside of the copper tube 46 to be processed, and the rear end of the burning tube 24 passes between the two rollers 9, and then the inner lining block 26 is rotated and screwed into the rear end of the burning tube 24, and then two No. 1 bolts 27 are screwed in to achieve the installation of the inner lining block 26. At the end of the burning tube 24, ensure that the lining block 26 is away from the preheated copper tube 46 to be processed during the installation process. A limiting groove 47 is set on the left side of the second mounting frame 17 to prevent scalding and improve the safety during the rolling process. By setting the lining block 26 inside the copper tube 46 to be processed, a supporting force is provided to the inner wall of the copper tube 46 to be processed, reducing the irregular deformation of the inner wall of the copper tube 46 to be processed during the rolling process. At the same time, the thickness of the tube wall is controlled more accurately, further reducing unnecessary depressions and protrusions caused by squeezing the inner wall of the tube, making the inner wall of the tube smoother and flatter, and at the same time, the metal impurities dropped from the inner wall of the tube during the extrusion process are scraped off, so that it is easier to insert the aluminum material into the copper tube to form a copper-aluminum composite row, and the installation and disassembly of the lining block 26 is simple and convenient. The cross-sectional shape of the tube cavity can be controlled by replacing different types of lining blocks 26, and it also has the effect of expanding the hole, so as to manufacture various types of special-shaped copper tubes, thereby improving the diversity of functions. The No. 1 hydraulic cylinder 7 is started to drive the slide 8 to press the upper roller 9 down to the outer wall of the copper tube 46 to be processed, so that the two rollers 9 clamp the copper tube 46 to be processed, and then the double-headed reversible motor 29 is started to reverse, so that the No. 1 screw 32 pushes the threaded sleeve 33, and then the burning tube 24 on the slide 18 pulls the lining block 26 to the rear end of the copper tube 46 to be processed, and the valve 20 is opened, and the electromagnetic igniter 22 is started to make the gas in the gas tank 19 flow through the gas pipe 21 and be ejected and ignited by the electromagnetic igniter 22, and the end of the flame passes through the flame-spraying hole 25, so that the flame sprayed out of the flame-spraying hole 25 is The flame is radially attached to the concave inner wall of the flame stabilizing ring 49 and moves freely to the opening edge of the flame stabilizing ring, so that the flame heats the copper tube 46 to be processed larger and more evenly, thereby reducing heat waste. At the same time, the ash retaining ring 50 and the flame stabilizing ring 49 work together to intercept the incompletely burned fuel when it flows back into the copper tube 46 to be processed, so as to achieve secondary combustion and filter the dust generated by the combustion, thereby heating the copper tube 46 to be processed, so that the temperature of the copper tube 46 to be processed is maintained between 600°C and 800°C during the rolling process, reducing the hardness of the copper tube 46 to be processed due to heat loss and thus making it difficult to be pushed forward, making the copper tube 46 to be processed more plastic and easier to be squeezed and deformed by the roller 9, which not only reduces the resistance to pushing, but also reduces the energy consumption during transportation.The product quality is improved. The driving motor 12 is started to drive the No. 1 gear 13 to rotate. The No. 1 gear 13 drives the No. 2 gear 14 and the rotating shaft 16 to rotate at the same time. The No. 2 gear 14 drives the telescopic coupling 15 to rotate. The telescopic coupling 15 and the rotating shaft 16 respectively drive the two rollers 9 to rotate synchronously, thereby achieving the rolling of the copper tube 46 to be processed while conveying the copper tube 46 to be processed to the rear. The rolling and transportation processes are driven by one motor, which greatly shortens the processing time, improves the processing efficiency, and further reduces the cost. The friction between the roller 9 and the copper tube 46 to be processed is increased by the anti-slip strip 11, so that the inner wall of the copper tube 46 to be processed is squeezed by the liner block 26 during the backward movement to achieve shaping. Embodiment 2

[0051] like Figure 1 , Figure 6 , Figure 8 As shown, an embodiment of the present invention provides a special-shaped copper tube processing equipment for copper-aluminum composite bars, including a machine tool 1, the upper surface of the machine tool 1 is provided with a rolling device 2, a driving device 3, a flame spraying device 4 and a straightening device 5, the upper surface of the machine tool 1 is fixedly connected to a bracket 44, the inner wall of the bracket 44 is rotatably connected to a concave wheel 45, and the side surface of the concave wheel 45 is provided with a copper tube 46 to be processed.

[0052] The straightening device 5 includes a reciprocating assembly and two pairs of left-right symmetrically distributed straightening assemblies. The reciprocating assembly includes a reversible motor 34 , a second screw 35 and a slider 36 , and the straightening assembly includes a second hydraulic cylinder 37 , a U-shaped frame 38 and an extrusion wheel 39 .

[0053] The output end of the reversible motor 34 is fixedly connected to the No. 2 screw 35, the side surface of the No. 2 screw 35 is threadedly connected to the slider 36, the inner wall of the slider 36 is fixedly connected to the No. 2 hydraulic cylinder 37, the end of the No. 2 hydraulic cylinder 37 away from the slider 36 is fixedly connected to the U-shaped frame 38, the interior of the U-shaped frame 38 is rotatably connected to the extrusion wheel 39, the lower surface of the U-shaped frame 38 is fixedly connected to the limit block 40, the interior of the slider 36 is provided with a slide groove 41, the inner wall of the slide groove 41 is slidably connected to the limit block 40, the upper surface of the machine tool 1 is provided with a reinforcement block 42, the side surface of the No. 2 screw 35 is rotatably connected to the reinforcement block 42, the upper surface of the machine tool 1 is provided with a T-shaped slide rail 43, and the lower surfaces of the slide plate 18 and the slider 36 are both slidably connected to the T-shaped slide rail 43.

[0054] In this embodiment, when the copper tube 46 to be processed passes between the two extrusion wheels 39, the reversible motor 34 is started to drive the No. 2 screw 35 to continuously rotate forward and reverse, so that the No. 2 screw 35 pulls the slider 36 to achieve reciprocating motion, and the two extrusion wheels 39 continuously correct and straighten the copper tube 46 to be processed, thereby improving product quality.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A special-shaped copper tube processing equipment for copper-aluminum composite bar, comprising: A machine tool (1), characterized in that a rolling device (2), a driving device (3), a flame spraying device (4) and a straightening device (5) are arranged on the upper surface of the machine tool (1); The rolling device (2) comprises a first mounting frame (6), two No. 1 hydraulic cylinders (7), a slide (8), two rollers (9) and a fixed frame (10); the top of the first mounting frame (6) is fixedly connected to the No. 1 hydraulic cylinder (7); the lower end of the No. 1 hydraulic cylinder (7) is fixedly connected to the slide (8); the interior of the slide (8) is rotatably connected to the roller (9); the interior of the fixed frame (10) is rotatably connected to the roller (9); a roller groove is provided in the middle of the roller (9); and a plurality of anti-slip strips (11) are provided on the outer side of the roller groove along the circumferential direction; The flame spraying device (4) comprises a flame spraying assembly, a lining assembly and a moving assembly. The flame spraying assembly comprises a slide plate (18), a gas tank (19), a valve (20), a gas pipe (21) and an electromagnetic igniter (22). The front surface of the slide plate (18) is fixedly connected to the gas tank (19), the output end of the gas tank (19) is fixedly connected to the valve (20), the other end of the valve (20) is fixedly connected to the gas pipe (21), and the end of the gas pipe (21) away from the valve (20) passes through the slide plate (18) and is connected to the electromagnetic igniter (22). The lining assembly comprises a fixed plate (23), a fire pipe (24), a lining block (26) and a No. 1 bolt (27). The rear surface of the fixed plate (23) is fixedly connected to the fire pipe (24). The fire tube (24) is fixedly connected, the fire tube (24) is provided with a plurality of fire-spraying holes (25) penetrating the fire tube (24), the inner lining block (26) is detachably connected to the fire tube (24) via a No. 1 bolt (27), the moving assembly comprises a double-headed reversible motor (29), a No. 1 bevel gear (30), a No. 2 bevel gear (31), a No. 1 screw (32) and a threaded sleeve (33), the output end of the double-headed reversible motor (29) is fixedly connected to the No. 1 bevel gear (30), the side surface of the No. 1 bevel gear (30) is meshingly connected to the No. 2 bevel gear (31), the interior of the No. 2 bevel gear (31) is fixedly connected to the No. 1 screw (32), and the side surface of the fixed plate (23) is threadedly connected to the threaded sleeve (33); The internal annular array of the fixed plate (23) is provided with No. 2 bolts (28), the ends of the No. 2 bolts (28) are threadedly connected to the slide plate (18), the electromagnetic igniter (22) is located inside the burning tube (24), and a flame stabilizing assembly (48) is provided on the outer wall of the burning tube (24), the flame stabilizing assembly (48) comprises a flame stabilizing ring (49) and an ash retaining ring (50), the rear end of the flame stabilizing ring (49) is fixedly connected to the ash retaining ring (50), the inner wall of the flame stabilizing ring (49) is designed to be an arc-shaped concave surface, and the interior of the ash retaining ring (50) is provided with filter holes.

2. The special-shaped copper tube processing equipment for copper-aluminum composite bar according to claim 1 is characterized in that: The upper surface of the machine tool (1) is fixedly connected to the first mounting frame (6), the two sides of the slide frame (8) are slidably connected to the first mounting frame (6), and the two sides of the fixed frame (10) are fixedly connected to the first mounting frame (6).

3. The special-shaped copper tube processing equipment for copper-aluminum composite bar according to claim 2 is characterized in that: The driving device (3) comprises a driving motor (12), a first gear (13), a second gear (14), a telescopic coupling (15) and a rotating shaft (16); the upper surface of the machine tool (1) is fixedly connected to the driving motor (12); the output end of the driving motor (12) is fixedly connected to the first gear (13); the side surface of the first gear (13) is meshedly connected to the second gear (14); and the left end of the second gear (14) is fixedly connected to the telescopic coupling (15).

4. The special-shaped copper tube processing equipment for copper-aluminum composite bar according to claim 3 is characterized in that: The two rollers (9) are symmetrically distributed up and down, the left end of the telescopic coupling (15) is fixedly connected to the upper roller (9), the left end of the No. 1 gear (13) is fixedly connected to the rotating shaft (16), and the left end of the rotating shaft (16) is fixedly connected to the lower roller (9), and a second mounting frame (17) is fixedly connected to the upper surface of the machine tool (1), the interior of the second mounting frame (17) is rotatably connected to the No. 1 gear (13), the No. 2 gear (14), and the rotating shaft (16), and a limiting groove (47) is provided on the left side of the second mounting frame (17).

5. The special-shaped copper tube processing equipment for copper-aluminum composite bar according to claim 4 is characterized in that: The front surface of the slide plate (18) is fixedly connected to the double-headed reversible motor (29), the side surface of the No. 1 screw rod (32) is rotationally connected to the slide plate (18), and the end of the threaded sleeve (33) away from the No. 1 screw rod (32) is fixedly connected to the first mounting frame (6).

6. The special-shaped copper tube processing equipment for copper-aluminum composite bar according to claim 5 is characterized in that: The straightening device (5) comprises a reciprocating assembly and two pairs of left-right symmetrically distributed straightening assemblies, the reciprocating assembly comprises a reversible motor (34), a No. 2 screw rod (35) and a slider (36), and the straightening assembly comprises a No. 2 hydraulic cylinder (37), a U-shaped frame (38) and an extrusion wheel (39).

7. The special-shaped copper tube processing equipment for copper-aluminum composite bar according to claim 6 is characterized by: The output end of the reversible motor (34) is fixedly connected to the second screw rod (35), the side surface of the second screw rod (35) is threadedly connected to the slider (36), the inner wall of the slider (36) is fixedly connected to the second hydraulic cylinder (37), the end of the second hydraulic cylinder (37) away from the slider (36) is fixedly connected to the U-shaped frame (38), the interior of the U-shaped frame (38) is rotatably connected to the extrusion wheel (39), and the lower surface of the U-shaped frame (38) is fixedly connected to A limit block (40), a slide groove (41) is provided inside the slider (36), the inner wall of the slide groove (41) is slidably connected to the limit block (40), a reinforcing block (42) is provided on the upper surface of the machine tool (1), the side surface of the No. 2 screw rod (35) is rotatably connected to the reinforcing block (42), a T-shaped slide rail (43) is provided on the upper surface of the machine tool (1), and the lower surfaces of the slide plate (18) and the slider (36) are both slidably connected to the T-shaped slide rail (43).

8. The special-shaped copper tube processing equipment for copper-aluminum composite bar according to claim 7 is characterized in that: A bracket (44) is fixedly connected to the upper surface of the machine tool (1), a concave wheel (45) is rotatably connected to the inner wall of the bracket (44), and a copper tube (46) to be processed is arranged on the side surface of the concave wheel (45).

9. The method for using the special-shaped copper tube processing equipment for copper-aluminum composite bar according to claim 8 is characterized in that: The following steps are involved: S1, placing one end of the preheated copper tube (46) to be processed on the concave wheel (45), and the other end between the two rollers (9), at which time the slide plate (18) is located at the front end of the T-shaped slide rail (43); S2, by screwing in the No. 2 bolt (28), the fixing plate (23) is inserted into the electromagnetic igniter (22) and mounted on the slide plate (18), at which time the electromagnetic igniter (22) is located inside the burning tube (24); S3, start the double-headed reversible motor (29), and through the meshing of the No. 1 bevel gear (30) and the No. 2 bevel gear (31), the No. 1 screw (32) rotates in the threaded sleeve (33) and pulls the burning tube (24) through the inside of the copper tube (46) to be processed, and the rear end of the burning tube (24) passes between the two rollers (9), and then the lining block (26) is rotated and screwed into the rear end of the burning tube (24), and then two No. 1 bolts (27) are screwed in to achieve the installation of the lining block (26) at the end of the burning tube (24), ensuring that the lining block (26) is away from the preheated copper tube (46) to be processed during the installation process to prevent burns and improve the safety of the rolling process; S4, start the No. 1 hydraulic cylinder (7) to drive the slide (8) to press the upper roller (9) down to the outer wall of the copper tube (46) to be processed, so that the two rollers (9) clamp the copper tube (46) to be processed, and then start the double-headed reversible motor (29) to reverse, so that the No. 1 screw (32) pushes the threaded sleeve (33) and then the burning tube (24) on the slide (18) pulls the lining block (26) to the rear end of the copper tube (46) to be processed; S5, opening the valve (20), starting the electromagnetic igniter (22), allowing the gas in the gas tank (19) to flow through the gas pipe (21) and be ejected and ignited through the electromagnetic igniter (22), and the end of the flame passes through the flame ejection hole (25), so that the flame ejected from the flame ejection hole (25) is radially attached to the concave inner wall of the flame stabilizing ring (49) and is freed to the opening edge of the flame stabilizing ring, so that the flame heats the copper tube (46) to be processed larger and more uniformly, thereby reducing heat waste. At the same time, the ash retaining ring (50) and the flame stabilizing ring (49) work together to intercept the incompletely burned fuel when it flows back into the copper tube (46) to be processed, thereby achieving secondary combustion and filtering the dust generated by the combustion; S6, starting the driving motor (12) to drive the first gear (13) to rotate, the first gear (13) drives the second gear (14) and the rotating shaft (16) to rotate, the second gear (14) drives the telescopic coupling (15) to rotate, the telescopic coupling (15) and the rotating shaft (16) respectively drive the two rollers (9) to rotate synchronously, thereby achieving the goal of rolling the copper tube (46) to be processed while conveying the copper tube (46) to be processed backward, and increasing the friction between the roller (9) and the copper tube (46) to be processed by the anti-slip strip (11), so that the inner wall of the copper tube (46) to be processed is squeezed by the lining block (26) during the backward movement, thereby achieving shaping; S7. When the copper tube (46) to be processed passes between the two extrusion wheels (39), the reversible motor (34) is started to drive the second screw (35) to continuously rotate forward and reverse, so that the second screw (35) pulls the slider (36) to achieve reciprocating motion, and the two extrusion wheels (39) continuously correct and straighten the copper tube (46) to be processed, thereby improving product quality.

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