WO2017113417A1 - 一种制造金属扁管的装置和方法 - Google Patents

一种制造金属扁管的装置和方法 Download PDF

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Publication number
WO2017113417A1
WO2017113417A1 PCT/CN2015/100347 CN2015100347W WO2017113417A1 WO 2017113417 A1 WO2017113417 A1 WO 2017113417A1 CN 2015100347 W CN2015100347 W CN 2015100347W WO 2017113417 A1 WO2017113417 A1 WO 2017113417A1
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Prior art keywords
circular
tube
circular pipe
shaping
hole
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PCT/CN2015/100347
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English (en)
French (fr)
Inventor
洪明鑫
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深圳市大富方圆成型技术有限公司
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Application filed by 深圳市大富方圆成型技术有限公司 filed Critical 深圳市大富方圆成型技术有限公司
Priority to CN201580080090.2A priority Critical patent/CN107710525B/zh
Priority to PCT/CN2015/100347 priority patent/WO2017113417A1/zh
Publication of WO2017113417A1 publication Critical patent/WO2017113417A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/18—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing bases or cases for contact members

Definitions

  • the present invention relates to the field of pipe processing technology, and more particularly to an apparatus and method for manufacturing a metal flat pipe.
  • the outer casing of many existing components is a flat metal pipe, and the metal casing of the USB interface is a flat structure.
  • Existing methods of making metal flat tubes are typically formed by stamping, i.e., providing a sheet-like strip to a stamping station, and then punching the strip down to punch the strip out of the shape of the punch. Through the stamping of a plurality of different stations, the desired metal flat tube is finally formed.
  • the technical problem to be solved by the present invention is to provide an apparatus and method for manufacturing a metal flat tube which can produce a desired metal flat tube at a low cost.
  • a technical solution adopted by the present invention is to provide a method for manufacturing a metal flat tube, the method comprising: providing a sheet of material; rolling and welding the sheet into a circular tube; The pipe is stretched through a through hole of the drawing die, the through hole is elongated, the length is larger than the width, and the width of the long through hole is smaller than the diameter of the circular pipe to stretch the circular pipe into a flat tube .
  • the step of stretching the circular pipe through the through hole of the drawing die further comprises: simultaneously shaping the inner diameter and the outer diameter of the circular pipe through the inner core and the outer core.
  • the method comprises: simultaneously shaping the inner diameter and the outer diameter of the circular pipe by different inner cores and outer cores, and between the steps of simultaneously shaping the inner diameter and the outer diameter of each of the two pairs of circular pipes
  • the circular pipe is cleaned and annealed in sequence.
  • the step of simultaneously shaping the inner diameter and the outer diameter of the circular pipe is performed.
  • the circular tube is then further extruded and stretched to shape the outer diameter of the circular tube.
  • the method further comprises: straightening the circular pipe and cutting into a circular pipe segment of a preset length.
  • the step of stretching the circular pipe through the through hole of the stretching die further comprises: pressing one end of the circular pipe section to crush one end of the circular pipe section, thereby guiding the circular pipe section into the drawing die .
  • the step of sequentially stretching the circular pipe section through the width of the through hole comprises: drawing the circular pipe section through a stretching die whose width of the through hole is gradually reduced to flatten the circular pipe section to The flat tube semi-finished product; the flat tube semi-finished product is cut into a preset length; the cut flat tube semi-finished product is sequentially passed through the remaining through-hole reducing die with a decreasing width to stretch into a flat tube.
  • the step of stretching the circular pipe through the through hole of the drawing die comprises: passing the flattened end of the circular pipe section through the through hole of the drawing die, and then clamping the flattened end and stretching away from the drawing The circular section is stretched in the direction of the mold.
  • a device for manufacturing a metal flat tube which comprises: a circular pipe processing device for rolling and welding a sheet into a circular pipe.
  • the flat tube stretching device comprises a mold slot, the mold slot is used for setting the stretching mold, and the flat tube stretching device is used for stretching the circular tube through the through hole of the stretching mold, and the through hole is a strip
  • the shape has a length greater than the width, and the width of the elongated through hole is smaller than the diameter of the circular pipe to stretch the circular pipe into a flat tube.
  • the apparatus further comprises: a circular pipe shaping device comprising a first shaping die, the first shaping die comprising an inner core and an outer core, wherein the inner core and the outer core are nested, and there is a between the inner core and the outer core The gap, the circular tube passes through the gap so that the inner core shapes the inner diameter of the circular tube while the outer core shapes the outer diameter of the circular tube.
  • a circular pipe shaping device comprising a first shaping die, the first shaping die comprising an inner core and an outer core, wherein the inner core and the outer core are nested, and there is a between the inner core and the outer core The gap, the circular tube passes through the gap so that the inner core shapes the inner diameter of the circular tube while the outer core shapes the outer diameter of the circular tube.
  • the first shaping die comprises a plurality of shaping stations respectively arranged in the circular pipe shaping device, the inner core and the outer core of each first shaping die are different in size, and the circular pipe is sequentially passed through different sections.
  • An shaping mold for gradually shaping the inner and outer diameters of the circular tube to a predetermined size; the apparatus further comprising a cleaning device and an annealing device, wherein the steps of shaping the circular tube by the two first shaping dies are in turn
  • the circular tube is passed through a cleaning device and an annealing device to separately clean and anneal the circular tube.
  • the circular pipe shaping device comprises a second shaping die, and the second shaping die is arranged in the last shaping station of the circular pipe shaping device, which comprises an outer core for pressing and stretching the circular pipe.
  • the outer diameter of the circular pipe is shaped.
  • the device comprises: a straightening cutting machine, which is used for straightening and cutting a circular pipe which has been shaped by an outer diameter into a circular pipe section of a preset length.
  • the device comprises: a flattening device for pressing one end of the circular pipe section to crush one end of the circular pipe section, thereby guiding the circular pipe section into the drawing die.
  • the flat tube stretching apparatus further comprises a clamping member, wherein: the flattened end of the circular pipe section passes through the through hole of the drawing die, and then the clamping member clamps the flattened end and is away from the drawing die Stretch the circular pipe section.
  • the stretching mold comprises at least two, and the width of the through holes of the at least two stretching molds is gradually decreased; the circular tube segments sequentially pass through the stretching mold whose width of the through holes is gradually reduced.
  • the device further comprises a cutting device, wherein: the circular pipe section sequentially passes through a part of the through hole and the width of the drawing die is gradually reduced to flatten the circular pipe section into a flat pipe semi-finished product; the cutting device cuts the flat pipe semi-finished product into a pre-prepared The length is set; the cut flat tube semi-finished product is again passed through a stretching die whose width of the remaining through hole is gradually reduced to be stretched into a flat tube.
  • the invention has the beneficial effects that the method for manufacturing a metal flat tube is different from the prior art, and the method is specifically: providing a sheet of material, and then rolling and welding the sheet into a round shape Tube, finally, the circular pipe is stretched through the through hole of the drawing die, the through hole has a long shape, the length is larger than the width, and the width of the long through hole is smaller than the diameter of the circular pipe to round Pipe Stretched into a flat tube. Therefore, the present invention only needs to stretch the mold to produce a flat metal tube, and the stretching mold is not easily worn by the number of stretching. Therefore, the stretching mold of the present invention has a long life, thereby reducing the cost of the mold.
  • FIG. 1 is a flow chart of a method for manufacturing a metal flat tube according to an embodiment of the present invention
  • FIG. 2 is a cross-sectional view of a shaping die according to an embodiment of the present invention.
  • FIG. 3 is a working principle diagram of a circular pipe material according to an embodiment of the present invention, which is shaped by a shaping die;
  • FIGS. 4 to 7 are front views of different shaping dies provided by an embodiment of the present invention.
  • FIGS. 8-10 are front views of different drawing dies provided by an embodiment of the present invention.
  • FIG. 11 is a schematic structural view of an apparatus for manufacturing a metal flat tube according to an embodiment of the present invention.
  • FIG. 12 is a schematic structural view of a flat tube stretching apparatus according to an embodiment of the present invention.
  • FIG. 1 is a flow chart of a method for manufacturing a metal flat tube according to an embodiment of the present invention. As shown in FIG. 1, the method for manufacturing a metal flat tube of the present embodiment includes the following steps:
  • Step S1 providing a piece of material
  • Step S2 The sheet is rolled and welded into a circular tube.
  • Step S3 stretching the circular pipe through the through hole of the stretching die, the through hole is elongated, the length is greater than the width, and the width of the long through hole is smaller than the diameter of the circular pipe to round The tube is stretched into a flat tube.
  • the present invention only needs to stretch the mold to produce a flat metal tube, and the stretching mold is not easily worn by the number of stretching. Therefore, the stretching mold of the present invention has a long life, thereby reducing the cost of the mold.
  • the circular pipe is further shaped by a shaping die before the circular pipe is stretched into a flat pipe in step S3.
  • the structure of the shaping mold 100 please refer to Figure 2, as shown in Figure 2
  • the orthopedic mold 100 includes an inner core 101 and an outer core 102 that simultaneously shape the inner and outer diameters of the circular tube.
  • the inner core 101 and the outer core 102 are nested, and a gap 103 exists between the inner core 101 and the outer core 102, and the circular tube 10 passes through the gap 103 (as shown in FIG. 3), so that the inner core 101
  • the inner diameter of the circular tube 10 is shaped while the outer core 102 shapes the outer diameter of the circular tube 10.
  • the embodiment specifically provides three shaping dies 104-106, wherein the inner core and the outer core of each shaping die are different, and the three shaping dies 104-106 are specifically as shown in FIG. 4-6.
  • the outer diameters r1-r3 of the inner cores 1041-1061 of the molds 104-106 and the inner diameters R1-R3 of the outer cores 1042-1062 are gradually reduced.
  • the circular tube 10 passes through the inner core and the outer core shown in Figs. 4-6 in order such that the inner and outer diameters thereof gradually become smaller to approach the desired size.
  • the circular pipe 10 in this embodiment is shaped by the shaping die 104 shown in FIG. 4, the circular pipe 10 is first cleaned and annealed, and then The inner and outer diameters of the metal pipe 10 are simultaneously shaped by the shaping die 105 shown in FIG.
  • the cleaning process of the embodiment is high-pressure cleaning. Specifically, one end of the circular pipe 10 is connected to the high-pressure water outlet, and the inner wall of the circular pipe 10 is cleaned by a lemon high-pressure cleaning pipe.
  • the circular tube 10 is then transferred to an annealing apparatus, the temperature inside the annealing apparatus is adjusted to 1050 ° C, and the circular tube 10 is protected by hydrogen (H 2 ).
  • H 2 hydrogen
  • the circular pipe 10 is shaped by the shaping die 105 shown in FIG. 5, it is also subjected to the cleaning and annealing process as described above, and then to the metal pipe 10 through the shaping die 106 shown in FIG. The inner and outer diameters are simultaneously shaped.
  • the circular pipe 10 in the present embodiment passes through the shaping die shown in FIG. 6, the circular pipe 10 is further subjected to Extrusion and stretching to shape the outer diameter of the circular tube 10.
  • FIG. 7 provides an shaping die 107 having only the outer core 1071 to shape the outer diameter of the circular pipe 10.
  • the outer diameter of the circular tube 10 is brought to the exact dimensions required.
  • the circular pipe 10 is straightened and cut into a circular pipe section of a predetermined length. Then, one end of the circular pipe section is pressed to flatten one end of the circular pipe section, thereby guiding the circular pipe section into the drawing die.
  • the circular pipe 10 can be straightened a plurality of times by the straightening device. After the straightening precision requirement of the circular pipe 10 is reached, the circular pipe 10 is cut into a circular pipe segment of a preset length. Then, one end of the circular pipe section is squeezed by a retractor, and one end of the circular pipe section is further hammered with a hammer to hammer it into a flat shape.
  • the circular tube section is placed in the ultrasonic cleaning tank by ultrasonic cleaning, and then washed with tap water to maintain the circular tube section. Clean and tidy.
  • the stretching die in step S3 includes at least two, and the width of the through holes of at least two stretching dies gradually decreases.
  • the drawing die 200 of the present embodiment includes three 201-203.
  • the length of the through hole of the drawing die 200 is the direction of the long axis of the through hole, and the width is the direction of the short axis.
  • the stretching die 201 as an example, the length L1 of the through hole 2011 is larger than the width W1. Further, the widths W1-W3 of the through holes 2011-2031 of the drawing dies 201-203 of the present embodiment are gradually reduced.
  • step S3 the circular tube segments are sequentially stretched by a stretching die whose width of the through holes is gradually decreased.
  • the circular pipe segments are sequentially passed through the drawing die 201-203, and the widths W1-W3 of the through holes 2011-2031 of the drawing die 201-203 are gradually reduced, so that the circular pipe segments are gradually flattened. That is, the desired metal flat tube is gradually formed.
  • the specific step of stretching is: firstly, the flattened end of the circular pipe section is passed through the through hole of the drawing die 200, and then the flattened end is clamped and the circular pipe section is stretched in a direction away from the drawing die 200. .
  • the method for stretching the circular pipe section in the tensile die whose width of the through hole is gradually reduced in this embodiment includes the following two types:
  • the stretching molds are respectively arranged in different stretching stations, and then the circular pipe segments are sequentially passed through the stretching die with the width of the through holes, and the circular pipe segments are clamped each time through one stretching die.
  • the flattened end stretches the circular tube section in a direction away from the drawing die.
  • the flattened end of the circular pipe section is passed through the drawing die 201 having the largest width of the through hole, and then the flattened end of the circular pipe section is clamped away from the side.
  • the circular pipe section is stretched in the direction of the drawing die 201.
  • the circular pipe segment is sequentially passed through a stretching die whose width of the through hole is gradually reduced, so that the circular pipe segment is flattened into a flat pipe semi-finished product, and then the flat pipe semi-finished product is cut into a preset length, and finally the cutting is performed.
  • the flat tube semi-finished product is again passed through a stretching die whose width of the through hole is gradually reduced to be stretched into a flat tube.
  • the specific cutting method is as follows: the flattened flat tube semi-finished products are bundled, and then cut into a preset length of pipe by a wire cutter, for example, can be cut into two sections of equal length.
  • the process of stretching the circular tube section into a flat tube is performed separately, first by stretching a predetermined number of times, then cutting into a shorter flat tube, and finally stretching.
  • the circular pipe sections are first stretched by the drawing die 201, then cut into shorter flat tubes, and finally the flat tubes are sequentially passed through the drawing dies 202 and 203. Stretching.
  • the stretching method in which the processes are performed separately can also adopt the two methods described above. Since the flat tube semi-finished product is cut into a shorter length after the predetermined number of times of stretching, the bending deformation of the flat tube semi-finished product is prevented from being too long in the subsequent stretching step, thereby improving the drawing precision.
  • the flat tube semi-finished product is further cleaned, dried and refueled after being cut, and then stretched.
  • the specific cleaning method is the same as that described above, and details are not described herein again.
  • the drying method is specifically: placing the flat tube semi-finished product into a high temperature oven and keeping the temperature at 200 ° C - 400 ° C for 2 hours to remove the stress caused during the processing.
  • the refueling method is specifically: the flat tube semi-finished product after the stress release is placed in the sealing oiling tank, and the inner and outer pipe walls are filled with oil and sealed.
  • the drawing die includes at least two time steps S3.
  • at least two of the stretching dies described above may also be integrally formed as one drawing dies. Wherein, the width of the entrance of the drawing die gradually decreases to the width of the outlet.
  • the metal flat tube After stretching the metal flat tube to the precision, the metal flat tube is cut into a metal flat tube section of a desired length, specifically, a metal flat tube section cut into a desired fixed length by a needle cutter setting program.
  • the metal flat pipe is further cleaned and heat shrunk.
  • the specific cleaning method is the same as that described above, and details are not described herein again.
  • the specific method of heat shrinking the tube is to wrap the three metal flat tubes with a heat shrinkable sleeve, and then heat shrink and fix with a hot air blower. Thereby, the cutting efficiency can be improved and the surface of the metal flat tube can be protected from being scratched.
  • the steps of cleaning, stripping, grinding, washing, drying and drying are also included. Specifically, the method of the two cleaning steps is the same as that described above, and details are not described herein again.
  • the specific method of stripping the sleeve is to put the cut metal flat pipe section into the stripping machine to peel off the heat shrink sleeve.
  • the specific method of grinding is as follows: the stripped metal flat pipe section is placed in a grinder, the grinding powder and the grinding liquid are added, and the metal flat pipe section is deburred by the grinding stone in the grinder.
  • the specific method of drying is to put the cleaned metal flat pipe section into the dryer and dry it, that is, it is similar to the action of drying clothes.
  • the specific method of drying is as follows: the dried metal flat pipe section is dried in a dryer to completely remove residual moisture.
  • the round pipe is stretched into a flat pipe by a drawing die, the method is simple, and the mold cost is low.
  • Embodiments of the present invention also provide an apparatus for manufacturing a metal flat tube that is suitable for use in the method described above.
  • the apparatus 20 for manufacturing a metal flat tube of the present embodiment includes a pipe processing equipment. 11 and flat tube stretching equipment 12.
  • the circular pipe processing apparatus 11 is used for rolling and welding a sheet into a circular pipe 100.
  • the flat tube stretching apparatus 12 includes a mold fixing seat 121.
  • the mold fixing hole 121 is provided with a mold slot 122 for setting the stretching die 200, and the flat tube stretching device 12
  • the through hole is in the shape of a strip having a length greater than the width, and the width of the elongated through hole is smaller than the diameter of the circular pipe to round the circle
  • the tube is stretched into a flat tube.
  • the drawing die 200 is a drawing die as described above.
  • the drawing die 200 of the present embodiment includes at least two, and the width of the through holes of at least two of the drawing dies is gradually reduced, for example, the stretching dies 201-203 as described above.
  • the description of the specific drawing dies 201-203 is as described above, and will not be described herein.
  • the drawing die may also be provided in one, that is, at least two drawing dies are integrally formed as one drawing die. Wherein, the width of the entrance of the drawing die gradually decreases to the width of the outlet.
  • the embodiment further includes a circular tube shaping device 13 including an orthopedic mold 100.
  • the shaping die 100 includes an inner core 101 and an outer core 102, wherein the inner core 101 and the outer core 102 are nested, and a gap 103 exists between the inner core 101 and the outer core 102, and the circular tube 100 passes through the gap 103 such that the inner core 101 shapes the inner diameter of the circular tube 100 while the outer core 102 shapes the outer diameter of the circular tube 100.
  • the shaping mold 100 includes a plurality of shaping dies 104-106 as shown in FIGS. 4-6. They are respectively disposed in a plurality of shaping stations of the circular pipe shaping device 13, and the dimensions of the inner core and the outer core of the shaping die of each shaping station are different, as shown in FIG. 4-6, within the shaping die 104-106.
  • the outer diameters r1-r3 of the cores 101-1061 and the inner diameters R1-R3 of the outer cores 1042-1062 gradually become smaller.
  • the circular tube 10 is sequentially passed through different shaping dies to gradually shape the inner and outer diameters of the circular tube 10 to a predetermined size. Therefore, in the present embodiment, the shaping of the circular pipe 10 is performed multiple times, and the precision of the shaping is improved.
  • the device 20 further includes a cleaning device 14 and an annealing device 15. Among them, in two shaping The circular tube 10 is sequentially passed through the cleaning device 14 and the annealing device 15 to clean and anneal the circular tube 10, respectively, between the steps of shaping the circular tube 10.
  • the circular pipe 10 in this embodiment is shaped by the shaping die 104 shown in FIG. 4
  • the circular pipe 10 is first passed through the cleaning device 14 and the annealing device 15 to respectively clean and anneal the circular pipe 10.
  • the inner diameter and the outer diameter of the metal pipe 10 are simultaneously shaped by the shaping die 105 shown in FIG.
  • the specific steps of cleaning and annealing are as described above, and are not described herein again.
  • the circular pipe shaping device 13 of the present embodiment further includes an shaping die 107.
  • the shaping die 107 includes only the outer core 1071 and is disposed in the last shaping station of the circular pipe shaping device 13 for The circular tube 10, in which the inner and outer diameters are simultaneously shaped, is further extruded and stretched to shape the outer diameter of the circular tube 10.
  • the apparatus 20 of the present embodiment further includes a straightening cutter 16 for straightening and cutting the circular tube 10 that has been shaped by the outer diameter into a circular length of a predetermined length.
  • the apparatus 20 of the present embodiment further includes a flattening device 17 for pressing one end of the circular pipe section to crush one end of the circular pipe section, thereby guiding the circular pipe section into the drawing die 200.
  • a flattening device 17 for pressing one end of the circular pipe section to crush one end of the circular pipe section, thereby guiding the circular pipe section into the drawing die 200.
  • the flat tube stretching apparatus 12 further includes a clamping member 123.
  • the flattened end of the circular pipe section passes through the through hole of the drawing die 200, and then the clamping member 123 clamps the flattened end and stretches the circular pipe section in a direction away from the drawing die 200.
  • the circular pipe segment of the embodiment sequentially passes through the stretching die whose width of the through hole is gradually reduced.
  • the specific method includes the two types described above, and details are not described herein again.
  • the device 20 also includes a cutting device 18. Among them, in order to further improve the tensile precision of the metal flat tube.
  • the circular pipe section passes through the stretching die 200 whose width of the through hole is gradually reduced in order to flatten the circular pipe section into a flat pipe semi-finished product.
  • the cutting device 18 then cuts the flat tube semi-finished product to a predetermined length.
  • the cut flat tube semi-finished product is again passed through a stretching die whose width of the through hole is gradually reduced to be stretched into a flat tube.
  • the device 20 further includes a drying device 19, a fueling device 110, a heat shrinkable tube device 111, The stripping device 112, the grinding device 113, the spin drying device 114, and the drying device 115.
  • the drying device 19 is used for drying the flat tube semi-finished product to remove the stress caused during the processing.
  • the refueling device 110 is used to refuel the dried flat tube semi-finished product.
  • the heat shrinkable tube device 111 is used for heat shrinking the metal flat tube before cutting to improve cutting efficiency and protect the surface of the metal flat tube from being scratched.
  • the heat shrinkable tube device 111 is used for heat shrinking the metal flat tube before cutting to improve cutting efficiency and protect the surface of the metal flat tube from being scratched.
  • the stripping device 112 is used to strip the cut metal flat tube segments. For details of the stripping process, please refer to the previous section, and details are not described here.
  • the grinding device 113 is used to grind the stripped metal flat tube segments. For details of the grinding process, please refer to the previous section, and details are not described here.
  • the drying device 114 is used to dry the cleaned metal flat pipe section. For details of the dry process, please refer to the previous section and we will not repeat them here.
  • the drying device 115 is used for drying the dried metal pipe section. For details on the drying process, refer to the previous section, and details are not described here.
  • the present invention stretches the round tube into a flat tube by the stretching die 200, the method is simple, and the mold cost is low.

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Abstract

一种制造金属扁管的装置及方法。该方法具体为：提供一片材，然后将片材碾压成型并焊接为圆形管材，最后将圆形管材通过拉伸模具的通孔进行拉伸，通孔为长条形状，其长度大于宽度，且长条形状的通孔的宽度小于圆形管材的直径，以将圆形管材拉伸为扁管。因此，通过上述方法及装置，将圆形管材通过拉伸模具进行拉伸为扁管，方法简单，并且模具成本低。

Description

一种制造金属扁管的装置和方法 【技术领域】
本发明涉及管材加工技术领域，尤其是涉及一种制造金属扁管的装置和方法。
【背景技术】
现有的许多元件的外壳都是用扁状的金属管，例如USB接口的金属外壳即为扁状结构。现有的制造金属扁管的方法通常是通过冲压方式形成，即向冲压台提供片状的料带，然后冲针向下冲压料带，以将料带冲压出冲针的形状。经过多个不同工位的冲压，最终形成所需的金属扁管。
但是，现有的冲压方式形成扁管的方式由于需要冲针不断的进行冲压，冲针的冲头磨损很严重，寿命短，因此经常要更换冲针，使得模具的成本很高。
【发明内容】
本发明主要解决的技术问题是提供一种制造金属扁管的装置和方法，可以通过较低的成本制造出所需的金属扁管。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种制造金属扁管的方法，该方法包括：提供一片材；将片材碾压成型并焊接为圆形管材；将圆形管材通过拉伸模具的通孔进行拉伸，通孔为长条形状，其长度大于宽度，且长条形状的通孔的宽度小于圆形管材的直径，以将圆形管材拉伸为扁管。
其中，将圆形管材通过拉伸模具的通孔进行拉伸的步骤之前还包括：通过内芯和外芯对圆形管材的内径和外径同时进行整形。
其中，该方法包括：通过不同的内芯和外芯对圆形管材的内径和外径同时进行多次整形，并且在每两个对圆形管材的内径和外径同时进行整形的步骤之间依次对圆形管材进行清洗和退火工序。
其中，在进行最后一次的对圆形管材的内径和外径同时进行整形的步骤之 后进一步对圆形管材进行挤压和拉伸，以对圆形管材的外径进行整形。
其中，在对圆形管材的外径进行整形的步骤之后进一步包括：将圆形管材进行调直并切割为预设长度的圆形管段。
其中，将圆形管材通过拉伸模具的通孔进行拉伸的步骤之前还包括：将圆形管段的一端进行挤压，以压扁圆形管段的一端，从而引导圆形管段进入拉伸模具。
其中，拉伸模具至少包括两个，至少两个拉伸模具的通孔的宽度逐渐减小；将圆形管材通过拉伸模具的通孔进行拉伸的步骤包括：将圆形管段依次通过通孔的宽度逐渐减小的拉伸模具进行拉伸。
其中，将圆形管段依次通过通孔的宽度逐渐减小的拉伸模具的步骤包括：将圆形管段依次通过一部分通孔的宽度逐渐减小的拉伸模具，以对圆形管段拉扁为扁管半成品；对扁管半成品进行切割成预设长度；将切割后的扁管半成品再次依次通过剩下的通孔的宽度逐渐减小的拉伸模具，以拉伸为扁管。
其中，将圆形管材通过拉伸模具的通孔进行拉伸的步骤包括：将圆形管段的压扁的一端穿过拉伸模具的通孔，然后夹住压扁的一端并沿远离拉伸模具的方向拉伸圆形管段。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种制造金属扁管的装置，该装置包括：圆形管材加工设备，用于将片材碾压成型并焊接为圆形管材；扁管拉伸设备，包括一模具槽孔，模具槽孔用于设置拉伸模具，扁管拉伸设备用于将圆形管材通过拉伸模具的通孔进行拉伸，通孔为长条形状，其长度大于宽度，且长条形状的通孔的宽度小于圆形管材的直径，以将圆形管材拉伸为扁管。
其中，装置还包括：圆形管材整形设备，其包括第一整形模具，第一整形模具包括内芯和外芯，其中内芯和外芯嵌套设置，并且内芯和外芯之间存在一间隙，圆形管材穿过间隙，以使得内芯对圆形管材的内径进行整形，同时外芯对圆形管材的外径进行整形。
其中，第一整形模具包括多个，分别设置在圆形管材整形设备的多个整形工位，每个第一整形模具的内芯和外芯的尺寸不同，依次将圆形管材通过不同的第一整形模具以逐步将圆形管材的内径和外径整形到预设的尺寸；装置进一步包括清洗设备和退火设备，其中，在两个第一整形模具对圆形管材进行整形的步骤之间依次将圆形管材通过清洗设备和退火设备以分别对圆形管材进行清洗和退火。
其中，圆形管材整形设备包括第二整形模具，第二整形模具设置于圆形管材整形设备的最后一个整形工位中，其包括外芯，用于对圆形管材进行挤压和拉伸，以对圆形管材的外径进行整形。
其中，装置包括：调直切割机，用于将经过外径整形后的圆形管材进行调直并切割为预设长度的圆形管段。
其中，装置包括：压扁设备，用于将圆形管段的一端进行挤压，以压扁圆形管段的一端，从而引导圆形管段进入拉伸模具。
其中，扁管拉伸设备还包括夹持元件，其中：圆形管段的压扁的一端穿过拉伸模具的通孔，然后夹持元件夹住压扁的一端并沿远离拉伸模具的方向拉伸圆形管段。
其中，拉伸模具包括至少两个，至少两个拉伸模具的通孔的宽度逐渐减小；圆形管段依次通过通孔的宽度逐渐减小的拉伸模具。
其中，装置进一步包括切割装置，其中：圆形管段依次通过一部分通孔的宽度逐渐减小的拉伸模具，以对圆形管段拉扁为扁管半成品；切割装置对扁管半成品进行切割成预设长度；切割后的扁管半成品再次依次通过剩下的通孔的宽度逐渐减小的拉伸模具，以拉伸为扁管。
本发明的有益效果是：区别于现有技术的情况，本发明提供了一种制造金属扁管的方法，该方法具体为：提供一片材，然后将片材碾压成型并焊接为圆形管材，最后将圆形管材通过拉伸模具的通孔进行拉伸，通孔为长条形状，其长度大于宽度，且长条形状的通孔的宽度小于圆形管材的直径，以将圆形管材 拉伸为扁管。因此，本发明只需要拉伸模具即可制造出扁状的金属管，拉伸模具不容易因为拉伸的次数而磨损，因此本发明的拉伸模具寿命长，从而降低模具的成本。
【附图说明】
图1是本发明实施例提供的一种制造金属扁管的方法的流程图；
图2是本发明实施例提供的整形模具的剖视图；
图3是本发明实施例提供的圆形管材经过整形模具进行整形时的工作原理图；
图4-图7是本发明实施例提供的不同的整形模具的主视图；
图8-图10是本发明实施例提供的不同的拉伸模具的主视图；
图11是本发明实施例提供的一种制造金属扁管的装置的结构示意图；
图12是本发明实施例提供的扁管拉伸设备的结构示意图。
【具体实施方式】
请参阅图1，图1是本发明实施例提供的一种制造金属扁管的方法的流程图。如图1所示，本实施例的制造金属扁管的方法包括以下步骤：
步骤S1：提供一片材；
步骤S2：将片材碾压成型并焊接为圆形管材。
步骤S3：将圆形管材通过拉伸模具的通孔进行拉伸，通孔为长条形状，其长度大于宽度，且长条形状的通孔的宽度小于圆形管材的直径，以将圆形管材拉伸为扁管。
因此，本发明只需要拉伸模具即可制造出扁状的金属管，拉伸模具不容易因为拉伸的次数而磨损，因此本发明的拉伸模具寿命长，从而降低模具的成本。
本实施例中，在步骤S3对圆形管材进行拉伸为扁管之前还进一步通过整形模具对圆形管材进行整形。其中，整形模具100的结构请一并参阅图2，如图2 所示，整形模具100包括内芯101和外芯102，内芯101和外芯102对圆形管材的内径和外径同时进行整形。具体为：内芯101和外芯102嵌套设置，并且内芯101和外芯102之间存在一间隙103，圆形管材10穿过间隙103(如图3所示)，以使得内芯101对圆形管材10的内径进行整形，同时外芯102对圆形管材10的外径进行整形。
其中，为了提高整形的精度，优选对圆形管材10进行了多次整形。具体的，本实施例具体提供了3个整形模具104-106，其中每一个整形模具的内芯和外芯的均不相同，3个整形模具104-106具体如图4-6所示，整形模具104-106的内芯1041-1061的外径r1-r3和外芯1042-1062的内径R1-R3逐渐变小。圆形管材10依次通过图4-图6所示的内芯和外芯，使得其内径和外径逐渐变小以接近所需尺寸。
其中，在每两个整形步骤之间，如本实施例中的圆形管材10在通过了图4所示的整形模具104进行整形后，先将圆形管材10进行清洗和退火工序，然后再通过图5所示的整形模具105对金属管材10的内径和外径同时进行整形。
其中，本实施例的清洗工序为高压清洗，具体为将圆形管材10一端接到高压出水口，通过柠檬高压清洗管对圆形管材10的内壁进行清洗。然后将圆形管材10输送至退火设备内，将退火设备内温度调至1050℃，并通过氢气(H2)对圆形管材10进行保护。由此可以消除组织缺陷，改善组织成份均匀及细化晶粒，提高了圆形管材10的性能，减少了残余应力，同时减低了硬度，提高塑性和韧性。
同理，圆形管材10在通过了图5所示的整形模具105进行整形后，同样要经过前文所述的清洗和退火工序，然后再通过图6所示的整形模具106对金属管材10的内径和外径同时进行整形。
在进行最后一次的对圆形管材10的内径和外径同时进行整形的步骤之后，如本实施例中的圆形管材10通过了图6所示的整形模具之后，进一步对圆形管材10进行挤压和拉伸，以对圆形管材10的外径进行整形。
具体的，请参阅图7，图7提供了一个只有外芯1071的整形模具107对圆形管材10的外径进行整形。使圆形管材10的外径得到所要求的精确尺寸。
在对圆形管材10的内径和外径都整形结束后，将圆形管材10进行调直并切割为预设长度的圆形管段。然后再将圆形管段的一端进行挤压，以压扁圆形管段的一端，从而引导圆形管段进入拉伸模具。
具体而言，可以通过调直设备对圆形管材10进行多次调直，在达到圆形管材10的调直精度要求之后，再将圆形管材10切割为预设长度的圆形管段。然后通过缩头机挤压圆形管段的一端，并进一步用铁锤捶打该圆形管段的一端，将其锤成扁状。
进一步的，为了防止在缩头和捶打过程中，圆形管段出现毛刺、刮伤等不良，本实施例将圆形管段放入超声波清洗池中使用超声波清洗，再用自来水清洗，保持圆形管段干净整洁。
本实施例中，步骤S3中的拉伸模具至少包括两个，至少两个拉伸模具的通孔的宽度逐渐减小。如图8-10所示，本实施例的拉伸模具200包括三个201-203。其中，拉伸模具200的通孔的长度为其通孔的长轴的方向，宽度为其短轴的方向。以拉伸模具201为例，其通孔2011的长度L1大于宽度W1。进一步的，本实施例的拉伸模具201-203的通孔2011-2031的宽度W1-W3逐渐减小。
步骤S3具体为将圆形管段依次通过通孔的宽度逐渐减小的拉伸模具进行拉伸。具体而言，本实施例中，圆形管段依次通过拉伸模具201-203，由于拉伸模具201-203的通孔2011-2031的宽度W1-W3逐渐减小，使得圆形管段逐渐变扁，即逐渐形成所需的金属扁管。
其中，拉伸的具体步骤为：首先将圆形管段的压扁的一端穿过拉伸模具200的通孔，然后夹住压扁的一端并沿远离拉伸模具200的方向拉伸圆形管段。
更具体的，本实施例中的将圆形管段依次通过通孔的宽度逐渐减小的拉伸模具进行拉伸的方法包括以下两种：
第一种，将所有的拉伸模具沿着拉伸的方向按照通孔的宽度由大到小的顺 序组合起来，然后将圆形管段的压扁的一端穿过组合起来的拉伸模具，在穿过最后一个拉伸模具后，夹住压扁的一端并沿着远离拉模具迹的方向拉伸圆形管段。由此可以一步将圆形管段拉伸为扁管。
第二种，将拉伸模具分别设置在不同的拉伸工位上，然后圆形管段依次通过通孔的宽度由大到小的拉伸模具，每通过一个拉伸模具都夹住圆形管段的压扁的一端沿着远离拉伸模具的方向拉伸圆形管段。结合本实施例的拉伸模具201-203举例，首先将圆形管段的压扁的一端通过通孔的宽度为最大的拉伸模具201，然后夹住圆形管段的压扁的一端沿着远离拉伸模具201的方向拉伸圆形管段。然后再将圆形管段的压扁的一端通过通孔的宽度仅比最大宽度的通孔小的拉伸模具202，然后夹住圆形管段的压扁的一端沿着远离拉伸模具的方向拉伸圆形管段。以此类推，直到将圆形管段的压扁的一端通过通孔的宽度最小的拉伸模具203，然后夹住圆形管段的压扁的一端沿着远离拉伸模具203的方向拉伸圆形管段。该方法拉伸出来的金属扁管的精度更高。
其中，为了进一步提高金属扁管的拉伸精度。本实施例将圆形管段依次通过一部分通孔的宽度逐渐减小的拉伸模具，以对圆形管段拉扁为扁管半成品，然后对扁管半成品进行切割成预设长度，最后将切割后的扁管半成品再次依次通过剩下的通孔的宽度逐渐减小的拉伸模具，以拉伸为扁管。其中，具体的切割方法为：将拉扁后的扁管半成品成捆，然后经线切割机切割成预设长度的管件，例如可以切成等长的两段。
具体而言，本实施例将圆形管段拉伸为扁管的过程分开进行，先拉伸预设次数，然后切割为更短的扁管，最后再进行拉伸。结合本实施例的拉伸模具201-203举例，先将圆形管段通过拉伸模具201进行拉伸，然后切割为更短的扁管，最后再将扁管依次通过拉伸模具202和203进行拉伸。应理解，过程分开进行的拉伸方法同样可以采用前文所述的两种方法。由于在拉伸预设次数之后将扁管半成品切割为更短的长度，使得在后续的拉伸步骤中，防止了扁管半成品太长而产生的弯曲变形，从而提高了拉伸精度。
其中，在对扁管半成品进行切割后还进一步进行清洗、烘干和加油，然后再进行拉伸。具体的清洗方法与前文所述的相同，在此不再赘述。烘干方法具体为：将扁管半成品放入高温烤箱内，保持200℃-400℃的温度烘烤2小时，以去除加工过程中造成的应力。加油方法具体为：将应力释放后的扁管半成品放入密封加油槽中进行内外管壁加油后密封。
以上介绍的是拉伸模具包括至少两个时步骤S3的具体拉伸方法。在其他实施例中，还可以将前文所述的至少两个拉伸模具一体成型地设置为一个拉伸模具。其中，该拉伸模具的入口的宽度到出口的宽度逐渐减小。
在拉伸为符合精度的金属扁管之后将金属扁管切割为所需的长度的金属扁管段，具体为通过针管切割机设置程序切割成所需固定长度的金属扁管段。
其中，在切割为金属扁管段之前还包括将金属扁管进行清洗和热缩包管。其中，具体的清洗方法与前文所述的相同，在此不再赘述。热缩包管的具体方法为：把三根金属扁管用热缩套管包裹好，然后用热风机进行热缩固定。由此可以提高切割效率和保护金属扁管表面不被划伤。
其中，在切割为金属扁管段之后还包括清洗、剥套、研磨、清洗、甩干和烘干步骤。具体的，两次清洗步骤方法与前文所述的相同，在此不再赘述。剥套的具体方法为将切割好的金属扁管段放入剥套机进行剥离热缩套。研磨的具体方法为：将剥离好的金属扁管段放入研磨机，添加研磨粉和研磨液，通过研磨机内的研磨石使金属扁管段达到去毛刺效果。甩干的具体方法为：将清洗后的金属扁管段放入甩干机甩干，即类似于甩干衣物的动作进行甩干。烘干的具体方法为：将甩干后的金属扁管段放入烘干机彻底烘干，彻底去除残留水分。
承前所述，本实施例将圆管通过拉伸模具进行拉伸为扁管，方法简单，并且模具成本低。
本发明实施例还提供了一种制造金属扁管的装置，该装置适用于前文所述的方法。
请参阅图11所示，本实施例的制造金属扁管的装置20包括管材加工设备 11和扁管拉伸设备12。
其中，圆形管材加工设备11用于将片材碾压成型并焊接为圆形管材100。
请一并参阅图12，扁管拉伸设备12包括模具固定座121，在模具固定座121上设置了模具槽孔122，模具槽孔122用于设置拉伸模具200，扁管拉伸设备12用于将圆形管材10通过拉伸模具200的通孔进行拉伸，通孔为长条形状，其长度大于宽度，且长条形状的通孔的宽度小于圆形管材的直径，以将圆形管材拉伸为扁管。
本实施例中，拉伸模具200如前文所述的拉伸模具。具体而言，本实施例的拉伸模具200包括至少两个，至少两个拉伸模具的通孔的宽度逐渐减小，例如前文所述的拉伸模具201-203。具体拉伸模具201-203的介绍如前文所述，在此不再赘述。
在其他实施例中，拉伸模具还可以设置为一个，即将至少两个拉伸模具一体成型地设置为一个拉伸模具。其中，该拉伸模具的入口的宽度到出口的宽度逐渐减小。
进一步的，本实施例还包括圆形管材整形设备13，其包括整形模具100。请再参阅图2所示，整形模具100包括内芯101和外芯102，其中内芯101和外芯102嵌套设置，并且内芯101和外芯102之间存在一间隙103，圆形管材100穿过间隙103，以使得内芯101对圆形管材100的内径进行整形，同时外芯102对圆形管材100的外径进行整形。
其中，整形模具100包括多个，如图4-6所示的整形模具104-106。其分别设置在圆形管材整形设备13的多个整形工位，每个整形工位的整形模具的内芯和外芯的尺寸不同，如图4-6所示，整形模具104-106的内芯101-1061的外径r1-r3和外芯1042-1062的内径R1-R3逐渐变小。依次将圆形管材10通过不同的整形模具以逐步将圆形管材10的内径和外径整形到预设的尺寸。因此，本实施例通过对圆形管材10进行了多次整形，提高了整形的精度。
进一步的，装置20还包括清洗设备14和退火设备15。其中，在两个整形 模具对圆形管材10进行整形的步骤之间依次将圆形管材10通过清洗设备14和退火设备15以分别对圆形管材10进行清洗和退火。如本实施例中的圆形管材10在通过了图4所示的整形模具104进行整形后，先将圆形管材10通过清洗设备14和退火设备15以分别对圆形管材10进行清洗和退火，然后再通过图5所示的整形模具105对金属管材10的内径和外径同时进行整形。其中，清洗和退火的具体步骤如前文所述，在此不再赘述。
进一步的，本实施例的圆形管材整形设备13还进一步包括整形模具107，整形模具107仅包括外芯1071，且设置在圆形管材整形设备13的最后一个整形工位中，用于对经过内径和外径同时进行整形的圆形管材10进一步进行挤压和拉伸，以对圆形管材10的外径进行整形。
进一步的，本实施例的装置20还包括调直切割机16，用于将经过外径整形后的圆形管材10进行调直并切割为预设长度的圆形管段。
进一步的，本实施例的装置20还包括压扁设备17，用于将圆形管段的一端进行挤压，以压扁圆形管段的一端，从而引导圆形管段进入拉伸模具200。压扁圆形管段的一端的具体操作如前文所述，在此不再赘述。
进一步的，扁管拉伸设备12还包括夹持元件123。其中，圆形管段的压扁的一端穿过拉伸模具200的通孔，然后夹持元件123夹住压扁的一端并沿远离拉伸模具200的方向拉伸圆形管段。
其中，本实施例的圆形管段依次通过通孔的宽度逐渐减小的拉伸模具。具体的方法包括前文所述的两种，在此不再赘述。
进一步的，装置20还包括切割装置18。其中，为了进一步提高金属扁管的拉伸精度。圆形管段依次通过一部分通孔的宽度逐渐减小的拉伸模具200，以对圆形管段拉扁为扁管半成品。然后切割装置18对扁管半成品进行切割成预设长度。切割后的扁管半成品再次依次通过剩下的通孔的宽度逐渐减小的拉伸模具，以拉伸为扁管。
进一步的，装置20还包括烘干设备19、加油设备110、热缩包管设备111、 剥套设备112、研磨设备113、甩干设备114和烘干设备115。
其中，烘干设备19用于对扁管半成品进行烘干，以去除加工过程中造成的应力。加油设备110用于对烘干后的扁管半成品进行加油。具体烘干和加油过程请参见前文所述，在此不再赘述。
热缩包管设备111用于对切割前的金属扁管进行热缩包管，以提高切割效率和保护金属扁管表面不被划伤。具体热缩包管过程请参见前文所述，在此不再赘述。
剥套设备112用于对切割后的金属扁管段进行剥套。具体剥套过程请参见前文所述，在此不再赘述。
研磨设备113用于对剥套后的金属扁管段进行研磨。具体研磨过程请参见前文所述，在此不再赘述。
甩干设备114用于对清洗后的金属扁管段进行甩干。具体甩干过程请参见前文所述，在此不再赘述。
烘干设备115用于对甩干后的金属变管段进行烘干。具体烘干过程请参见前文所述，在此不再赘述。
综上所述，本发明将圆管通过拉伸模具200进行拉伸为扁管，方法简单，并且模具成本低。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (18)

  1. 一种制造金属扁管的方法，其特征在于，所述方法包括：
    提供一片材；
    将所述片材碾压成型并焊接为圆形管材；
    将所述圆形管材通过拉伸模具的通孔进行拉伸，所述通孔为长条形状，其长度大于宽度，且所述长条形状的通孔的宽度小于所述圆形管材的直径，以将所述圆形管材拉伸为扁管。
  2. 根据权利要求1所述的方法，其特征在于，所述将所述圆形管材通过拉伸模具的通孔进行拉伸的步骤之前还包括：
    通过内芯和外芯对所述圆形管材的内径和外径同时进行整形。
  3. 根据权利要求2所述的方法，其特征在于，所述方法包括：
    通过不同的内芯和外芯对所述圆形管材的内径和外径同时进行多次整形，并且在每两个所述对所述圆形管材的内径和外径同时进行整形的步骤之间依次对所述圆形管材进行清洗和退火工序。
  4. 根据权利要求3所述的方法，其特征在于，在进行最后一次的对所述圆形管材的内径和外径同时进行整形的步骤之后进一步对所述圆形管材进行挤压和拉伸，以对所述圆形管材的外径进行整形。
  5. 根据权利要求4所述的方法，其特征在于，在所述对所述圆形管材的外径进行整形的步骤之后进一步包括：
    将所述圆形管材进行调直并切割为预设长度的圆形管段。
  6. 根据权利要求5所述的方法，其特征在于，所述将所述圆形管材通过拉伸模具的通孔进行拉伸的步骤之前还包括：
    将所述圆形管段的一端进行挤压，以压扁所述圆形管段的一端，从而引导所述圆形管段进入所述拉伸模具。
  7. 根据权利要求6所述的方法，其特征在于，拉伸模具至少包括两个，至 少两个拉伸模具的通孔的宽度逐渐减小；
    将所述圆形管材通过拉伸模具的通孔进行拉伸的步骤包括：
    将所述圆形管段依次通过通孔的宽度逐渐减小的拉伸模具进行拉伸。
  8. 根据权利要求7所述的方法，其特征在于，所述将所述圆形管段依次通过通孔的宽度逐渐减小的拉伸模具的步骤包括：
    将所述圆形管段依次通过一部分通孔的宽度逐渐减小的拉伸模具，以对所述圆形管段拉扁为扁管半成品；
    对所述扁管半成品进行切割成预设长度；
    将切割后的扁管半成品再次依次通过剩下的通孔的宽度逐渐减小的拉伸模具，以拉伸为所述扁管。
  9. 根据权利要求6所述的方法，其特征在于，将所述圆形管材通过拉伸模具的通孔进行拉伸的步骤包括：
    将所述圆形管段的压扁的一端穿过所述拉伸模具的通孔，然后夹住所述压扁的一端并沿远离所述拉伸模具的方向拉伸所述圆形管段。
  10. 一种制造金属扁管的装置，其特征在于，所述装置包括：
    圆形管材加工设备，用于将片材碾压成型并焊接为圆形管材；
    扁管拉伸设备，包括一模具槽孔，所述模具槽孔用于设置拉伸模具，所述扁管拉伸设备用于将所述圆形管材通过拉伸模具的通孔进行拉伸，所述通孔为长条形状，其长度大于宽度，且所述长条形状的通孔的宽度小于所述圆形管材的直径，以将所述圆形管材拉伸为扁管。
  11. 根据权利要求10所述的装置，其特征在于，所述装置还包括：
    圆形管材整形设备，其包括第一整形模具，所述第一整形模具包括内芯和外芯，其中所述内芯和所述外芯嵌套设置，并且所述内芯和所述外芯之间存在一间隙，所述圆形管材穿过所述间隙，以使得所述内芯对所述圆形管材的内径进行整形，同时所述外芯对所述圆形管材的外径进行整形。
  12. 根据权利要求11所述的装置，其特征在于，所述第一整形模具包括多 个，分别设置在所述圆形管材整形设备的多个整形工位上，每个第一整形模具的内芯和外芯的尺寸不同，依次将所述圆形管材通过不同的第一整形模具以逐步将所述圆形管材的内径和外径整形到预设的尺寸；
    所述装置进一步包括清洗设备和退火设备，其中，在两个第一整形模具对所述圆形管材进行整形的步骤之间依次将所述圆形管材通过清洗设备和退火设备以分别对所述圆形管材进行清洗和退火。
  13. 根据权利要求12所述的装置，其特征在于，所述圆形管材整形设备包括第二整形模具，所述第二整形模具设置于所述圆形管材整形设备的最后一个整形工位中，其包括外芯，用于对所述圆形管材进行挤压和拉伸，以对所述圆形管材的外径进行整形。
  14. 根据权利要求13所述的装置，其特征在于，所述装置包括：
    调直切割机，用于将经过外径整形后的所述圆形管材进行调直并切割为预设长度的圆形管段。
  15. 根据权利要求14所述的装置，其特征在于，所述装置包括：
    压扁设备，用于将所述圆形管段的一端进行挤压，以压扁所述圆形管段的一端，从而引导所述圆形管段进入所述拉伸模具。
  16. 根据权利要求15所述的装置，其特征在于，所述扁管拉伸设备还包括夹持元件，其中：
    所述圆形管段的压扁的一端穿过所述拉伸模具的通孔，然后所述夹持元件夹住所述压扁的一端并沿远离所述拉伸模具的方向拉伸所述圆形管段。
  17. 根据权利要求16所述的装置，其特征在于，所述拉伸模具包括至少两个，所述至少两个拉伸模具的通孔的宽度逐渐减小；
    所述圆形管段依次通过通孔的宽度逐渐减小的拉伸模具。
  18. 根据权利要求17所述的装置，其特征在于，所述装置进一步包括切割装置，其中：
    所述圆形管段依次通过一部分通孔的宽度逐渐减小的拉伸模具，以对所述 圆形管段拉扁为扁管半成品；
    所述切割装置对所述扁管半成品进行切割成预设长度；
    切割后的扁管半成品再次依次通过剩下的通孔的宽度逐渐减小的拉伸模具，以拉伸为所述扁管。
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