A hybrid engine working heat guide pipe processing device

Abstract

The present invention belongs to the technical field of processing the working heat conduction pipe of a hybrid engine, and discloses a processing device for the working heat conduction pipe of a hybrid engine, including a mounting base, on which the heat conduction pipe to be processed is mounted, an external fixed pipe fixedly connected to the mounting base, an external transmission pipe slidably connected to the inner contour of the external fixed pipe, an external extrusion component fixedly connected to the inner contour of the external transmission pipe away from the mounting base, an internal fixed column fixedly connected to the long upper side close to the mounting base, an internal transmission pipe slidably connected to the outer contour of the internal fixed column, and an internal extrusion component fixedly connected to the outer contour of the internal transmission pipe away from the mounting base. The present invention solves the problem of inconsistent pipe wall thickness caused by bulges of the inner and outer walls of the pipe at the bending part during the cold forming process of the heat conduction pipe by arranging the cooperation of structures such as the inner extrusion component and the outer extrusion component.

Description

Technical Field

[0001] The invention belongs to the technical field of hybrid engine working heat conduction pipe processing, and in particular relates to a hybrid engine working heat conduction pipe processing device. Background Art

[0002] A hybrid engine is a power system that combines a traditional fuel engine with an electric engine. Heat guide pipes are used in hybrid vehicles to guide and control the heat generated by the engine and maintain the appropriate operating temperature of the engine and battery pack.

[0003] Heat transfer ducts are usually made of metal with good thermal conductivity. They are installed around the engine and other heat sources to heat or keep warm by conducting heat. In hybrid vehicles, heat transfer ducts can transfer the heat energy generated by the engine to the battery pack or drive motor to improve the efficiency of the battery pack and extend the battery life.

[0004] For example, the publication number CN113664081A discloses a method for bending a pipe based on CNC bending and forming using a multi-layer groove mold, the steps are: prepare a five-axis linkage vector CNC bending pipe bending machine; manufacture a set of multi-layer groove bending forming molds; assemble the bending forming mold to the pipe bending machine; clamp one end of the catheter part in a straight tube state to the clamping arm of the pipe bending machine, and the other end of the catheter part passes through the bottom groove of the mold; under the control of the CNC machining program, control the pressing die and the bending die in the mold to buckle, and realize the forming processing of the first bending section of the catheter part; loosen the mold, lift the catheter part to the second layer of groove, adjust the angle of the catheter part and the angle of the bending die according to the bending tube shape parameters, repeat the pressing die and the bending die buckling action, and realize the forming processing of the second bending section of the catheter part; and so on, complete the forming processing of the remaining bending sections. The present invention can realize one-time CNC bending forming of catheter parts, and the processing stability and batch tube shape consistency are significantly improved.

[0005] The current heat guide tube processing technology ignores the control of the tube wall thickness and curvature at the bending part of the heat guide tube. However, uniform tube wall thickness and the same curvature have a positive effect on the strength, pressure resistance and fluidity of the heat guide tube, thereby increasing the service life of the heat guide tube. Summary of the invention

[0006] In order to solve the problems of tube wall thickness and curvature of the bending part of the heat guide tube proposed in the above background technology, the present invention provides a hybrid engine working heat guide tube processing device.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a hybrid engine working heat guide pipe processing device, comprising a mounting base, characterized in that: the mounting base is installed with a heat guide pipe to be processed, the mounting base is fixedly connected with an external fixed pipe, the inner contour of the external fixed pipe is slidably connected with an external transmission pipe, the inner contour of the external transmission pipe away from the mounting base is fixedly connected with an external extrusion component for extruding a protrusion on the outer contour during the heat guide pipe processing and bending process, the mounting base is fixedly connected with a mounting bracket on the lower side, the mounting bracket is fixedly connected with an internal fixed column on the upper side close to the mounting base, the inner contour of the internal fixed column is slidably connected with an internal transmission pipe, the outer contour of the internal transmission pipe away from the mounting base is fixedly connected with an internal extrusion component for extruding a protrusion on the inner contour during the heat guide pipe processing and bending process, and the mounting bracket is fixedly connected with a driving component for driving the inner transmission pipe and the outer transmission pipe to perform up and down reciprocating rotational motion.

[0008] Preferably, the external extrusion component includes an outer upper hydraulic chamber and an outer lower hydraulic chamber distributed in an array up and down on the inner contour of the outer transmission tube away from the mounting base, and the upper and lower outer hydraulic chambers have the same upper and lower fitting effect. Subsequently, taking the outer upper hydraulic chamber as an example, the long inner contour of the outer upper hydraulic chamber is slidably connected with an outer curved piston that is symmetrical up and down, the long inner contour of the outer upper hydraulic chamber is penetrated and fixedly connected with an outer piston tube, the outer piston tube is slidably connected with an outer piston column, the end of the outer piston column away from the outer piston tube is fixedly connected with an external detection piece, and the external cooling component is installed on the side of the external detection piece close to the outer piston tube.

[0009] Preferably, the inner extrusion assembly includes an upper inner hydraulic chamber and a lower inner hydraulic chamber in an upper and lower array fixedly connected to the inner contour of the inner fixed column, the upper inner hydraulic chamber and the lower inner hydraulic chamber have the same upper and lower fitting effect. Subsequently, taking the lower inner hydraulic chamber as an example, the outer contour of the lower inner hydraulic chamber is slidably connected with an inner curved piston that is symmetrical up and down, the outer contour of the lower inner hydraulic chamber is penetrated and fixedly connected with an inner piston tube, the inner piston tube is slidably connected with an inner piston column, the inner piston tube is fixedly connected with an inner piston column, the end of the inner piston column away from the inner piston tube is fixedly connected with an inner detection piece, and the inner cooling assembly is installed on the side of the inner detection piece close to the inner piston tube.

[0010] Preferably, the drive assembly includes a motor fixing frame fixedly connected to the mounting bracket, a dual-axis motor is installed in the motor fixing frame, an output shaft of the dual-axis motor is fixedly connected to an external transmission gear, the external transmission gear is meshingly connected to an external driven gear, an outer spline fixing frame is fixedly connected to the mounting bracket, the external driven gear is coaxially and slidably connected to an external spline shaft, an end of the external spline shaft away from the dual-axis motor is fixedly connected to an external rotating crank, a side of the external rotating crank away from the dual-axis motor is coaxially rotatably connected to an external spherical crank, an end of the outer spherical crank away from the outer rotating crank is hinged to an outer rotating column, and the outer rotating column is fixedly connected to an outer transmission tube.

[0011] The transmission gear of the present invention is a gear selected from the group consisting of a gearbox and a gear train, wherein the gears are connected to one another at a different location on the transmission shaft and a gear train is connected thereto.

[0012] Preferably, the outer cooling component includes an outer cooling air box fixedly connected to an outer piston tube near one end of the outer detection piece, the outer cooling air box is fixedly connected to an outer limiting tube, the outer limiting tube is slidably connected to an outer limiting sliding column, a first limiting spring is arranged between the outer limiting sliding column and the outer cooling air box, a through hole is opened in the outer detection piece, an outer cross-shaped blocking piece is fixedly connected to the inner through hole of the outer detection piece, the outer cross-shaped blocking piece is fixedly connected to the outer control column, one end of the outer control column near the outer cooling air box is fitted with the conical hole inside the outer limiting sliding column, the side of the outer cooling air box near the outer detection piece is fixedly connected to the outer piston inner tube, the side of the outer detection piece near the outer cooling air box is fixedly connected to the outer piston outer tube, the outer piston inner tube passes through and is slidably connected to the outer tube of the outer piston, and a first return spring is arranged between the outer piston inner tube and the outer detection piece.

[0013] Preferably, the inner cooling assembly comprises an inner cooling air box fixedly connected to one end of the inner piston tube near the inner detection piece, the inner cooling air box is fixedly connected to an inner limiting tube, the inner limiting tube is slidably connected to an inner limiting sliding column, a second limiting spring is arranged between the inner limiting sliding column and the inner cooling air box, a through hole is opened in the inner detection piece, an inner cross-shaped blocking piece is fixedly connected in the through hole outside the inner detection piece, the inner cross blocking piece is fixedly connected to the inner control column, the cone at one end of the inner control column near the inner cooling air box is fitted with the cone-shaped hole inside the inner limiting sliding column, the inner cooling air box is fixedly connected to an inner piston inner tube on one side near the inner detection piece, the inner detection piece is fixedly connected to an inner piston outer tube on one side near the inner cooling air box, the inner piston inner tube passes through and is slidably connected to the inner piston outer tube, and a second return spring is arranged between the inner piston inner tube and the inner detection piece.

[0014] Preferably, the outer upper hydraulic chamber and the outer lower hydraulic chamber are connected hydraulic chambers with consistent internal pressures.

[0015] Preferably, the inner upper hydraulic chamber and the inner lower hydraulic chamber are connected hydraulic chambers with consistent internal pressures.

[0016] Preferably, the outer fixing tube and the outer transmission tube are both made of flexible materials, and the inner fixing column and the inner transmission tube are both made of flexible materials.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention solves the problem of inconsistent pipe wall thickness caused by bulges on the inner and outer walls of the pipe at the bending part during the cold forming process of the hot guide pipe by arranging the cooperation of the structures such as the inner extrusion assembly and the outer extrusion assembly. The bulges on the inner and outer walls of the pipe are detected by the outer detection piece and the inner detection piece, and the bulges on the inner and outer walls of the pipe are squeezed by the outer curved surface piston and the inner curved surface piston, so that the inner and outer walls of the pipe become flat.

[0019] The present invention solves the problem of temperature rise of the part of the heat-conducting pipe after bending by arranging the cooperation of the internal cooling component and the external cooling component. The cooling gas in the external cooling air box or the internal cooling air box is controlled by the external control column or the internal control column to cool the inner and outer walls of the pipe, thereby increasing the pipe forming speed.

[0020] The present invention solves the problem of different curvatures of the curved part of the heat guide pipe by setting up the cooperation of structures such as the outer upper hydraulic chamber and the inner upper hydraulic chamber. Since the outer upper hydraulic chamber or the inner upper hydraulic chamber is a connected cavity, the internal pressure is consistent, and the degree of inward or outward extrusion of the outer curved piston and the inner curved piston is the same, so that the inner and outer walls of the pipe are circular and the curvature is consistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 It is a half-section diagram of the present invention;

[0023] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 It is a half-section view of the exterior of the pipe fitting of the present invention;

[0025] Figure 5 This is an exploded view of the outer extrusion assembly of the present invention;

[0026] Figure 6 A half-section view of the outer extrusion assembly of the present invention;

[0027] Figure 7 A half-section view of the external cooling assembly of the present invention;

[0028] Figure 8 A half-section view of the interior of the pipe fitting of the present invention;

[0029] Fig. 9 An exploded view of the internal extrusion assembly of the present invention;

[0030] Fig.10 A half-section view of the inner extrusion component of the present invention

[0031] Fig.11 A half-section view of the internal cooling component of the present invention

[0032] Fig.12 This is an exploded view of the drive assembly of the present invention.

[0033] In the figure: 1. mounting base; 11. mounting bracket; 12. motor fixing frame; 13. outer spline fixing frame; 14. inner spline fixing frame; 2. heat guide tube; 3. double-axis motor; 31. outer transmission gear; 32. outer driven gear; 33. outer spline shaft; 34. outer rotating crank; 35. outer spherical crank; 36. outer rotating column; 4. gear shaft fixing frame; 41. gear shaft; 42. transmission belt shaft; 43. driven belt shaft; 44. belt; 45. inner transmission gear; 46. inner driven gear; 47. inner spline shaft; 48. inner rotating crank; 49. inner spherical crank; 410. inner rotating column; 5. outer fixing tube; 51. outer transmission tube; 52. outer upper hydraulic chamber; 53. outer lower hydraulic chamber; 54. outer curved piston; 55. outer piston tube;

[0034] 56. outer piston column; 57. outer detection piece; 6. outer cooling air box; 61. outer control column; 62. outer cross-shaped baffle; 63. outer limit sliding column; 64. first limit spring; 65. outer piston inner tube; 66. outer piston outer tube; 67. first return spring; 68. outer limit tube; 7. inner fixed column; 71. inner transmission tube; 72. inner upper hydraulic chamber; 73. inner lower hydraulic chamber; 74. inner curved piston; 75. inner piston tube; 76. inner piston column; 77. inner detection piece; 8. inner cooling air box; 81. inner control column; 82. inner cross-shaped baffle; 83. inner limit tube; 84. inner limit sliding column; 85. second limit spring; 86. inner piston outer tube; 87. inner piston inner tube; 88. second return spring. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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.

[0036] like Figures 1 to 12 As shown, the present invention provides a hybrid engine working heat guide tube processing device, including a mounting base 1, the mounting base 1 is installed with a heat guide tube 2 to be processed, an outer fixed tube 5 is fixedly connected to the mounting base 1, an outer transmission tube 51 is slidably connected to the inner contour of the outer fixed tube 5, an outer extrusion component for extruding protrusions on the outer contour during the bending process of the heat guide tube 2 is fixedly connected to the inner contour of the outer transmission tube 51 away from the mounting base 1, a mounting bracket 11 is fixedly connected to the lower side of the mounting base 1, an inner fixed column 7 is fixedly connected to the long upper side of the mounting bracket 1 close to the mounting base 1, an inner transmission tube 71 is slidably connected to the outer contour of the inner fixed column 7, an inner transmission tube 71 is fixedly connected to the outer contour of the inner transmission tube 71 away from the mounting base 1, and a driving component for driving the inner transmission tube 71 and the outer transmission tube 51 to perform up and down reciprocating rotation motion is fixedly connected to the mounting bracket 11.

[0037] The outer extrusion component includes an outer transmission tube 51 and an outer upper hydraulic chamber 52 and an outer lower hydraulic chamber 53 distributed in an array up and down away from the inner contour of the mounting base 1. The upper hydraulic chamber 52 and the lower hydraulic chamber 53 have the same upper and lower fitting effect. In the following, the upper hydraulic chamber 52 is taken as an example. A symmetrical outer curved piston 54 is slidably connected through the long inner contour of the upper hydraulic chamber 52, and an outer piston tube 55 is fixedly connected through the long inner contour of the upper hydraulic chamber 52. An outer piston column 56 is slidably connected inside the outer piston tube 55. An end of the outer piston column 56 away from the outer piston tube 55 is fixedly connected to an outer detection piece 57, and an external cooling component is installed on the side of the outer detection piece 57 close to the outer piston tube 55.

[0038] The inner extrusion assembly includes an upper inner hydraulic chamber 72 and a lower inner hydraulic chamber 73 which are fixedly connected to the inner contour of the inner fixed column 7. The upper inner hydraulic chamber 72 and the lower inner hydraulic chamber 73 have the same upper and lower fitting effect. In the following, taking the lower inner hydraulic chamber 73 as an example, an inner curved piston 74 symmetrically connected to the outer contour of the lower inner hydraulic chamber 73 is slidably connected thereto, an inner piston tube 75 is fixedly connected to the outer contour of the lower inner hydraulic chamber 73, an inner piston column 76 is slidably connected to the inner piston tube 75, an inner detection piece 77 is fixedly connected to the end of the inner piston column 76 away from the inner piston tube 75, and an inner cooling assembly is installed on the side of the inner detection piece 77 close to the inner piston tube 75.

[0039] The above scheme is adopted: the inward protrusion and outward protrusion of the bending part of the heat guide tube 2 during the bending process are detected by the inner detection piece 77 and the outer detection piece 57. Since the inner lower hydraulic chamber 73 and the outer upper hydraulic chamber 52 are closed hydraulic chambers, when the protrusion squeezes the inner detection piece 77 or the outer detection piece 57 outwardly and inwardly respectively, the inner piston column 76 or the outer piston column 56 is driven to slide outwardly or inwardly respectively, thereby increasing the pressure in the inner lower hydraulic chamber 73 or the outer upper hydraulic chamber 52, so that the inner curved surface piston 74 or the outer curved surface piston 54 squeezes the protrusion inwardly or outwardly respectively, thereby squeezing the inward or outward protrusion during the bending process, so as to make the tube wall thickness of the heat guide tube 2 during the processing process uniform, enhance the strength and pressure resistance of the heat guide tube, and increase the service life of the heat guide tube.

[0040] like Figures 1 to 4 and Fig.12As shown, the drive assembly includes a motor fixing frame 12 fixedly connected to the mounting bracket 11, a dual-axis motor 3 is installed in the motor fixing frame 12, an output shaft of the dual-axis motor 3 is fixedly connected to an external transmission gear 31, the external transmission gear 31 is meshingly connected to an external driven gear 32, an outer spline fixing frame 13 is fixedly connected to the mounting bracket 11, the external driven gear 32 is coaxially penetrated and slidably connected to an external spline shaft 33, an end of the external spline shaft 33 away from the dual-axis motor 3 is fixedly connected to an external rotating crank 34, a side of the external rotating crank 34 away from the dual-axis motor 3 is coaxially rotatably connected to an external spherical crank 35, an end of the external spherical crank 35 away from the external rotating crank 34 is hinged to an external rotating column 36, and the external rotating column 36 is fixedly connected to the external transmission tube 51.

[0041] A transmission belt shaft 42 is fixedly connected to the other output shaft of the dual-axis motor 3, a gear shaft fixing frame 4 is fixedly connected to the side surface of the mounting bracket 11, a gear shaft 41 is rotatably connected inside the gear shaft fixing frame 4, a driven belt shaft 43 is fixedly connected to the end of the gear shaft 41 away from the mounting bracket 11, a belt 44 is wound between the driven belt shaft 43 and the transmission belt shaft 42, an internal transmission gear 45 is fixedly connected to the end of the gear shaft 41 away from the driven belt shaft 43, and the internal transmission gear 45 is meshed with an internal driven gear 46 The inner driven gear 46 is coaxially penetrated and slidably connected with the inner spline shaft 47, the inner spline fixing frame 14 is fixedly connected to the upper side of the mounting bracket 11, the inner spline fixing frame 14 is slidably connected to the inner spline shaft 47, the end of the inner spline shaft 47 away from the belt 44 is fixedly connected to the inner rotating crank 48, the side of the inner rotating crank 48 away from the inner spline shaft 47 is coaxially penetrated and rotatably connected with the inner spherical crank 49, the inner spherical crank 49 is hinged with the inner rotating column 410, and the inner rotating column 410 is fixedly connected to the inner transmission tube 71.

[0042] The above scheme is adopted: the outer transmission gear 31 is driven to rotate by the dual-axis motor 3, and the transmission belt shaft 42, the driven belt shaft 43 and the belt 44 are driven to rotate synchronously, thereby driving the inner transmission gear 45 and the outer transmission gear 31 to rotate synchronously. Taking the outer transmission gear 31 as an example, the outer transmission gear 31 drives the outer driven gear 32 to rotate synchronously, thereby driving the outer spline shaft 33 and the outer rotating crank 34 to rotate coaxially, so that the outer spherical crank 35 rotates synchronously around the rotating axis of the outer spline shaft 33. Since the outer spherical crank 35 and the outer rotating column 36 are hinged, The outer rotating column 36 drives the outer transmission tube 51 to reciprocate around the central axis of the outer transmission tube 51 and slide back and forth up and down while rotating. Similarly, the inner rotating column 410 drives the inner transmission tube 71 to reciprocate around the central axis of the inner transmission tube 71 and slide back and forth up and down. This allows the inner and outer extrusion components to slide and rotate back and forth up and down while detecting and extruding at their own height, thereby increasing the effective extrusion range of the inner and outer extrusion components, making the tube wall thickness of the bending part of the heat guide tube uniform, and enhancing the strength and pressure resistance of the heat guide tube.

[0043] like Figure 7 and 11 As shown, the external cooling assembly includes an external cooling air box 6 fixedly connected to one end of the external piston tube 55 near the external detection piece 57, an external limiting tube 68 is fixedly connected to the external cooling air box 6, an external limiting sliding column 63 is slidably connected to the external limiting tube 68, a first limiting spring 64 is arranged between the external limiting sliding column 63 and the external cooling air box 6, a through hole is opened in the external detection piece 57, an external cross-shaped blocking piece 62 is fixedly connected to the inner through hole of the external detection piece 57, and the external cross-shaped blocking piece 62 is fixedly connected to the external detection piece 57. An external control column 61 is connected, and the cone at one end of the external control column 61 close to the external cooling air box 6 fits with the cone-shaped hole inside the external limit sliding column 63. The side of the external cooling air box 6 close to the external detection piece 57 is fixedly connected with an external piston inner tube 65, and the side of the external detection piece 57 close to the external cooling air box 6 is fixedly connected with an external piston outer tube 66. The external piston inner tube 65 penetrates and is slidably connected in the external piston outer tube 66, and a first return spring 67 is arranged between the external piston inner tube 65 and the external detection piece 57.

[0044] The inner cooling assembly includes an inner cooling air box 8 fixedly connected to one end of the inner piston tube 75 near the inner detection piece 77, an inner limit tube 83 is fixedly connected to the inner cooling air box 8, an inner limit sliding column 84 is slidably connected to the inner limit tube 83, a second limit spring 85 is arranged between the inner limit sliding column 84 and the inner cooling air box 8, a through hole is opened in the inner detection piece 77, an inner cross-shaped baffle 82 is fixedly connected to the outer through hole of the inner detection piece 77, and the inner cross baffle 82 is fixedly connected to The inner control column 81, the cone at one end of the inner control column 81 close to the inner cooling air box 8 fits with the cone-shaped hole inside the inner limit sliding column 84, the side of the inner cooling air box 8 close to the inner detection piece 77 is fixedly connected with the inner piston inner tube 87, the side of the inner detection piece 77 close to the inner cooling air box 8 is fixedly connected with the inner piston outer tube 86, the inner piston inner tube 87 penetrates and is slidably connected in the inner piston outer tube 86, and a second return spring 88 is arranged between the inner piston inner tube 87 and the inner detection piece 77.

[0045] The above scheme is adopted: the principles of the internal and external cooling components are the same. Taking the internal cooling component as an example, when the internal detection piece 77 does not slide relative to the inner piston tube 75, the internal control column 81 and the internal limit sliding column 84 are not in contact, and the cooling gas in the internal cooling air box 8 can pass through the gap between the internal control column 81 and the inner limit tube 83, and is discharged after passing through the through hole of the internal detection piece 77. Since the temperature of the bending part of the metal pipe will increase during the cold forming process, the finished product needs to wait for it to cool, so the cooling gas discharged from the through hole of the internal detection piece 77 is used to cool the inner wall of the heat guide pipe to increase its cooling speed and accelerate the forming of the pipe fitting. Since the driving component will drive the internal detection piece 77 to reciprocate around the central axis of the inner transmission tube 71 while sliding up and down reciprocatingly. , so that the inner cooling component cools the inner wall of the entire curved pipe. When the inner detection piece 77 detects a protrusion on the inner wall of the pipe, the inner detection piece 77 drives the inner control column 81 to slide inward, so that the inner control column 81 and the inner limit sliding column 84 fit tightly, blocking the cooling gas in the inner cooling air box 8 from being discharged outward. Due to the different degrees of protrusions, the inner limit sliding column 84 slides relative to the inner limit tube 83, and the inner piston outer tube 86 also slides relative to the inner piston inner tube 87. When the inner detection piece 77 is restored, the second return spring 88 assists the inner detection piece 77 to return to its original position, and the second limit spring 85 pushes the inner limit sliding column 84 back to its original position, so that the next time a protrusion is detected, the delivery of cooling gas can be quickly blocked. The same is true for the external cooling component.

[0046] like Figure 5 and 9 As shown, the outer upper hydraulic chamber 52 and the outer lower hydraulic chamber 53 are connected hydraulic chambers with the same internal pressure, and the inner upper hydraulic chamber 72 and the inner lower hydraulic chamber 73 are connected hydraulic chambers with the same internal pressure.

[0047] The above scheme is adopted: since the internal pressures of the outer upper hydraulic chamber 52 and the outer lower hydraulic chamber 53 are consistent, the pressures inside the inner upper hydraulic chamber 72 and the inner lower hydraulic chamber 73 are consistent. When the tube wall of the heat guide tube 2 is elliptical during the bending process, the curvature of the inner and outer contours of the bent part of the heat guide tube 2 is different from the curvature of the inner and outer contours of the straight tube, the outer curved piston 54 or the inner curved piston 74 is radially squeezed on the inner and outer walls of the pipeline to restore the elliptical tube wall to a circular shape, and the curvature of the inner and outer walls of the bent part is made the same as the curvature of the straight tube, thereby increasing the strength and fluidity of the heat guide tube.

[0048] like Figure 4 and 8 As shown, the outer fixing tube 5 and the outer transmission tube 51 are both made of flexible materials, and the inner fixing column 7 and the inner transmission tube 71 are both made of flexible materials.

[0049] The above solution is adopted: through the external fixed tube 5 and the external transmission tube 51, the external extrusion component can still rotate around the central axis of the heat guide tube 2 when the pipeline is bent. Similarly, the external extrusion component can still rotate around the central axis of the heat guide tube 2 when the pipeline is bent.

[0050] The working principle and use process of the present invention:

[0051] The inner detection piece 77 and the outer detection piece 57 are used to detect the inward and outward protrusions of the bending part of the heat guide tube 2 during the bending process. Since the inner lower hydraulic chamber 73 and the outer upper hydraulic chamber 52 are closed hydraulic chambers, when the protrusions squeeze the inner detection piece 77 or the outer detection piece 57 outward and inward respectively, the inner piston column 76 or the outer piston column 56 is driven to slide outward or inward respectively, thereby increasing the pressure in the inner lower hydraulic chamber 73 or the outer upper hydraulic chamber 52, so that the inner curved surface piston 74 or the outer curved surface piston 54 squeezes the protrusions inward or outward respectively, thereby squeezing the inward or outward protrusions during the bending process, so as to make the tube wall thickness of the heat guide tube 2 during the processing uniform, enhance the strength and pressure resistance of the heat guide tube, and increase the service life of the heat guide tube.

[0052] The outer transmission gear 31 is driven to rotate by the dual-axis motor 3, and the transmission belt shaft 42, the driven belt shaft 43 and the belt 44 are driven to rotate synchronously, thereby driving the inner transmission gear 45 and the outer transmission gear 31 to rotate synchronously. Taking the outer transmission gear 31 as an example, the outer transmission gear 31 drives the outer driven gear 32 to rotate synchronously, thereby driving the outer spline shaft 33 and the outer rotating crank 34 to rotate coaxially, so that the outer spherical crank 35 rotates synchronously around the rotating axis of the outer spline shaft 33. Since the outer spherical crank 35 and the outer rotating column 36 are hinged, the outer The rotating column 36 drives the outer transmission tube 51 to reciprocate around the central axis of the outer transmission tube 51 and slide back and forth up and down while rotating. Similarly, the inner rotating column 410 drives the inner transmission tube 71 to reciprocate around the central axis of the inner transmission tube 71 and slide back and forth up and down. This allows the inner and outer extrusion components to slide and rotate back and forth up and down while detecting and extruding at their own heights, thereby increasing the effective extrusion range of the inner and outer extrusion components, making the tube wall thickness of the bending part of the heat guide tube uniform, and enhancing the strength and pressure resistance of the heat guide tube.

[0053] The inner and outer cooling components have the same principle. Taking the inner cooling component as an example, when the inner detection piece 77 does not slide relative to the inner piston tube 75, the inner control column 81 and the inner limit sliding column 84 are not in contact, and the cooling gas in the inner cooling air box 8 can pass through the gap between the inner control column 81 and the inner limit tube 83, and is discharged after passing through the through hole of the inner detection piece 77. Since the temperature of the bending part of the metal pipe will increase during the cold forming process, the finished product needs to wait for it to cool down, so the cooling gas discharged from the through hole of the inner detection piece 77 is used to cool the inner wall of the heat guide pipe to increase its cooling speed and accelerate the forming of the pipe fitting. Since the driving component will drive the inner detection piece 77 to reciprocate around the central axis of the inner transmission tube 71 while sliding up and down, the inner cooling The cooling component cools the entire curved inner wall of the pipe. When the inner detection piece 77 detects a protrusion on the inner wall of the pipe, the inner detection piece 77 drives the inner control column 81 to slide inward, so that the inner control column 81 and the inner limit sliding column 84 fit tightly together, blocking the cooling gas in the inner cooling air box 8 from being discharged outward. Due to the different degrees of protrusions, the inner limit sliding column 84 slides relative to the inner limit tube 83, and the inner piston outer tube 86 also slides relative to the inner piston inner tube 87. When the inner detection piece 77 is restored, the second return spring 88 assists the inner detection piece 77 to return to its original position, and the second limit spring 85 pushes the inner limit sliding column 84 back to its original position, so that the next time a protrusion is detected, the delivery of cooling gas can be quickly blocked. The same is true for the external cooling component.

[0054] Since the internal pressures of the outer upper hydraulic chamber 52 and the outer lower hydraulic chamber 53 are consistent, the pressures inside the inner upper hydraulic chamber 72 and the inner lower hydraulic chamber 73 are consistent. When the tube wall of the heat guide tube 2 becomes elliptical during the bending process, the curvature of the inner and outer contours of the bent part of the heat guide tube 2 is different from the curvature of the inner and outer contours of the straight tube. The outer curved piston 54 or the inner curved piston 74 radially squeezes the inner and outer walls of the pipeline to restore the elliptical tube wall to a circular shape, and makes the curvature of the inner and outer walls of the bent part the same as that of the straight tube, thereby increasing the strength and fluidity of the heat guide tube.

[0055] Through the external fixed tube 5 and the external transmission tube 51, the external extrusion assembly can still rotate around the central axis of the heat guide tube 2 when the pipeline is bent. Similarly, the external extrusion assembly can still rotate around the central axis of the heat guide tube 2 when the pipeline is bent.

[0056] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0057] 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 hybrid engine working heat conduction pipe processing device, comprising a mounting base (1), characterized in that: The mounting base (1) is mounted with a heat guide tube (2) to be processed, the mounting base (1) is fixedly connected with an external fixed tube (5), an external transmission tube (51) is slidably connected to the inner contour of the external fixed tube (5), an external extrusion component for extruding protrusions on the outer contour of the heat guide tube (2) during processing and bending is fixedly connected to the inner contour of the external transmission tube (51) away from the mounting base (1), a mounting bracket (11) is fixedly connected to the lower side of the mounting base (1), an internal fixed column (7) is fixedly connected to the long upper side of the mounting bracket (11) close to the mounting base (1), an internal transmission tube (71) is slidably connected to the outer contour of the internal fixed column (7), an internal extrusion component for extruding protrusions on the inner contour of the heat guide tube (2) during processing and bending is fixedly connected to the outer contour of the internal transmission tube (71) away from the mounting base (1), and a driving component for driving the internal transmission tube (71) and the external transmission tube (51) to perform up and down reciprocating rotational motion is fixedly connected to the mounting bracket (11); Wherein, an external cooling component is installed in the external extrusion component, and an internal cooling component is installed in the internal extrusion component; The external cooling assembly comprises an external cooling air box (6) fixedly connected to the external piston tube (55) and close to one end of the external detection piece (57); an external limit tube (68) is fixedly connected inside the external cooling air box (6); an external limit sliding column (63) is slidably connected inside the external limit tube (68); a through hole is opened inside the external detection piece (57); an external cross-shaped baffle (62) is fixedly connected inside the through hole inside the external detection piece (57); the external cross-shaped baffle (62) is fixedly connected to an external control column (61); an outer piston inner tube (65) is fixedly connected to one side of the external cooling air box (6) close to the external detection piece (57); and an outer piston outer tube (66) is fixedly connected to one side of the external detection piece (57) close to the external cooling air box (6); The inner cooling assembly comprises an inner cooling air box (8) fixedly connected to one end of the inner piston tube (75) near the inner detection piece (77); an inner limit tube (83) is fixedly connected inside the inner cooling air box (8); an inner limit sliding column (84) is slidably connected inside the inner limit tube (83); a through hole is opened inside the inner detection piece (77); an inner cross-shaped baffle (82) is fixedly connected inside the through hole outside the inner detection piece (77); the inner cross-shaped baffle (82) is fixedly connected to an inner control column (81); an inner piston inner tube (87) is fixedly connected to one side of the inner cooling air box (8) near the inner detection piece (77); and an inner piston outer tube (86) is fixedly connected to one side of the inner detection piece (77) near the inner cooling air box (8).

2. The hybrid engine working heat conduction pipe processing device according to claim 1, characterized in that: The external extrusion assembly comprises an external transmission tube (51) and an outer upper hydraulic chamber (52) and an outer lower hydraulic chamber (53) arranged in an array up and down on the inner contour away from the mounting base (1); the outer upper hydraulic chamber (52) and the outer lower hydraulic chamber (53) have the same upper and lower fitting effect, and the outer upper hydraulic chamber (52) is used as an example in the following description; An outer curved piston (54) symmetrical in upper and lower directions is slidably connected to the long inner contour of the outer upper hydraulic chamber (52), an outer piston tube (55) is fixedly connected to the long inner contour of the outer upper hydraulic chamber (52), an outer piston column (56) is slidably connected to the inner part of the outer piston tube (55), and an outer detection piece (57) is fixedly connected to the end of the outer piston column (56) away from the outer piston tube (55).

3. The hybrid engine working heat conduction pipe processing device according to claim 1, characterized in that: The inner extrusion assembly comprises an inner upper hydraulic chamber (72) and an inner lower hydraulic chamber (73) in an upper and lower array fixedly connected to the inner contour of the inner fixed column (7). The inner upper hydraulic chamber (72) and the inner lower hydraulic chamber (73) have the same upper and lower fitting effect. The inner lower hydraulic chamber (73) is used as an example in the following description. An inner curved piston (74) symmetrical in upper and lower directions is slidably connected to the outer contour of the inner lower hydraulic chamber (73), an inner piston tube (75) is fixedly connected to the outer contour of the inner lower hydraulic chamber (73), an inner piston column (76) is slidably connected to the inner piston tube (75), and an inner detection piece (77) is fixedly connected to one end of the inner piston column (76) away from the inner piston tube (75).

4. The hybrid engine working heat conduction pipe processing device according to claim 1, characterized in that: The drive assembly comprises a motor fixing frame (12) fixedly connected to a mounting bracket (11), a dual-axis motor (3) being mounted in the motor fixing frame (12), an output shaft of the dual-axis motor (3) being fixedly connected to an external transmission gear (31), the external transmission gear (31) being meshingly connected to an external driven gear (32), an outer spline fixing frame (13) being fixedly connected to the mounting bracket (11), the external driven gear (32) being coaxially penetrated and slidably connected to an external spline shaft (33), an end of the external spline shaft (33) away from the dual-axis motor (3) being fixedly connected to an external rotating crank (34), a side of the external rotating crank (34) away from the dual-axis motor (3) being coaxially rotatably connected to an external spherical crank (35), an end of the external spherical crank (35) away from the external rotating crank (34) being hinged to an external rotating column (36), and the external rotating column (36) being fixedly connected to an external transmission tube (51).

5. The hybrid engine working heat conduction pipe processing device according to claim 4, characterized in that: A transmission belt shaft (42) is fixedly connected to the other output shaft of the dual-axis motor (3); a gear shaft fixing frame (4) is fixedly connected to the upper side of the mounting bracket (11); a gear shaft (41) is rotatably connected inside the gear shaft fixing frame (4); an end of the gear shaft (41) away from the mounting bracket (11) is fixedly connected to a driven belt shaft (43); a belt (44) is wound between the driven belt shaft (43) and the transmission belt shaft (42); an end of the gear shaft (41) away from the driven belt shaft (43) is fixedly connected to an internal transmission gear (45); the internal transmission gear (45) is meshingly connected to an internal driven gear (46) ), the inner driven gear (46) is coaxially penetrated and slidably connected with an inner spline shaft (47), the upper side of the mounting bracket (11) is fixedly connected with an inner spline fixing frame (14), the inner spline fixing frame (14) is slidably connected with the inner spline shaft (47), the end of the inner spline shaft (47) away from the belt (44) is fixedly connected with an inner rotating crank (48), the side of the inner rotating crank (48) away from the inner spline shaft (47) is coaxially penetrated and slidably connected with an inner spherical crank (49), the inner spherical crank (49) is hinged with an inner rotating column (410), and the inner rotating column (410) is fixedly connected with the inner transmission tube (71).

6. The hybrid engine working heat conduction pipe processing device according to claim 1, characterized in that: A first limit spring (64) is arranged between the outer limit sliding column (63) and the outer cooling air box (6); the cone at one end of the outer control column (61) close to the outer cooling air box (6) fits into the cone-shaped hole inside the outer limit sliding column (63); the outer piston inner tube (65) penetrates and is slidably connected to the outer piston outer tube (66); and a first return spring (67) is arranged between the outer piston inner tube (65) and the outer detection piece (57).

7. The hybrid engine working heat conduction pipe processing device according to claim 1, characterized in that: A second limit spring (85) is provided between the inner limit sliding column (84) and the inner cooling air box (8); the cone at one end of the inner control column (81) close to the inner cooling air box (8) fits with the cone-shaped hole inside the inner limit sliding column (84); the inner piston inner tube (87) penetrates and is slidably connected to the inner piston outer tube (86); and a second return spring (88) is provided between the inner piston inner tube (87) and the inner detection piece (77).

8. The hybrid engine working heat conduction pipe processing device according to claim 2, characterized in that: The outer upper hydraulic chamber (52) and the outer lower hydraulic chamber (53) are connected hydraulic chambers with the same internal pressure.

9. The hybrid engine working heat conduction pipe processing device according to claim 3, characterized in that: The inner upper hydraulic chamber (72) and the inner lower hydraulic chamber (73) are connected hydraulic chambers with the same internal pressure.

10. The hybrid engine working heat conduction pipe processing device according to claim 1, characterized in that: The outer fixing tube (5) and the outer transmission tube (51) are both made of flexible materials, and the inner fixing column (7) and the inner transmission tube (71) are both made of flexible materials.

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