A high-efficiency hydraulic drawing and straightening machine

Abstract

The present invention discloses an efficient hydraulic drawing and straightening integrated machine, which relates to the technical field of hydraulic drawing and straightening, and comprises a frame, wherein the frame is provided with a feeding assembly, a front clamping assembly, a die guide assembly, a rear clamping assembly, a straightening assembly and a cutting assembly in sequence along the bar transmission direction, the front clamping assembly comprises a disc 1, a circular hole 2 is provided on the disc 1, three clamping blocks 1 sliding along the radial direction of the circular hole 2 are provided on the disc 1, the clamping block 1 comprises an outer layer and an inner layer, a cooling channel 1 is provided inside the side of the inner layer close to the circular hole 2, the cooling channel 1 is a conical spiral cavity, and a plurality of groups of oblique fork channels 1 are provided on the inner wall of the cooling channel 1 close to the circular hole 2, and each group of the oblique fork channels 1 comprises two fork channels 1. The present invention has the characteristics of improving the efficiency and quality of bar drawing and straightening.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic drawing and straightening, in particular to a high-efficiency hydraulic drawing and straightening integrated machine. Background Art

[0002] In the field of metal processing, drawing and straightening are key processes in the production of long products such as bars and tubes. The drawing process applies axial tension to the material through a die, causing it to plastically deform and achieve precise control of cross-sectional dimensions. The straightening process uses multiple rollers to eliminate internal residual stress and external curvature in the material, ensuring that the finished product meets straightness standards. However, traditional equipment and processes have significant limitations in terms of efficiency, precision, and energy consumption.

[0003] During the processing, traditional equipment requires drawing and straightening to be completed in steps on independent equipment. The material needs to be clamped and transferred multiple times, which prolongs the production cycle.

[0004] At the same time, during the bar drawing and straightening process, high heat is generated due to plastic deformation, and traditional cooling is difficult to dissipate heat quickly and evenly, thereby reducing production efficiency and production quality. Therefore, it is necessary to design an efficient hydraulic drawing and straightening machine to improve the efficiency and quality of bar drawing and straightening. Summary of the Invention

[0005] The purpose of the present invention is to provide a high-efficiency hydraulic drawing and straightening machine to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an efficient hydraulic drawing and straightening machine, comprising a frame, wherein the frame is provided with a feeding assembly, a front clamping assembly, a die guide assembly, a rear clamping assembly, a straightening assembly, and a cutting assembly in sequence along the bar transmission direction;

[0007] The front clamping assembly includes a disc 1, a circular hole 2 is formed on the disc 1, and three clamping blocks 1 are provided on the disc 1 and slide along the radial direction of the circular hole 2;

[0008] The clamping block 1 includes an outer layer and an inner layer. A cooling channel 1 is opened inside the inner layer on a side close to the circular hole 2. The cooling channel 1 is a conical spiral cavity. A plurality of groups of oblique forked channels 1 are opened on the inner wall of the cooling channel 1 on a side close to the circular hole 2. Each group of the oblique forked channels 1 includes two forked channels 1.

[0009] The mold guide assembly includes a mold, and the mold includes a base. A center hole is opened on the base. An inlet cone, a sizing sleeve, and an outlet cone are sequentially installed in the center hole along the feeding direction of the bar material. A plurality of spray holes are opened in the conical hole of the inlet cone. A cooling channel 2 is opened in the sizing sleeve. The cooling channel 2 is a cylindrical spiral cavity. A plurality of groups of oblique forked channels 2 are opened on the inner wall of the cooling channel 2 near the center of the sizing sleeve. Each group of the oblique forked channels 2 includes two forked channels 2, and both the forked channels 1 and the forked channels 2 have a tree-like branch structure.

[0010] A pressure sensor and a temperature sensor are embedded in the clamping block 1, a thermocouple is embedded in the base, and the temperature sensor, the pressure sensor and the thermocouple are all connected to a processor.

[0011] According to the above technical solution, the end port of the cooling channel 1 close to the spiral center is the input end, the end port of the cooling channel 1 away from the spiral center is the output end, the clamping block 1 is provided with a liquid inlet channel, the output end of the liquid inlet channel is connected to the input end of the cooling channel 1, the input end of the liquid inlet channel passes through the clamping block 1 pipeline and is connected to the pump body, the input end pipeline of the pump body is connected to the liquid storage tank, and a regulating valve 1 is provided on the pipeline connecting the input end of the liquid inlet channel to the pump body;

[0012] The clamp block 1 is provided with a liquid outlet channel, the input end of the liquid outlet channel is connected to the output end of the cooling channel 1, the output end of the liquid outlet channel passes through the clamp block 1 pipeline and is connected to a heat exchanger, and the output end pipeline of the heat exchanger is connected to the liquid storage tank.

[0013] According to the above technical solution, an annular water channel connected to the spray hole is opened in the inlet cone, a first liquid inlet channel connected to the annular water channel is opened in the inlet cone, and a second liquid inlet channel sealedly connected to the first liquid inlet channel is opened in the base;

[0014] The base body is provided with a liquid inlet channel 3 which is in sealed communication with the input end of the cooling channel 2, and the base body is provided with a liquid outlet channel which is in sealed communication with the output end of the cooling channel 2;

[0015] The input end of the second liquid inlet channel and the input end of the third liquid inlet channel are both connected to the pump body through a multi-way valve pipeline, and the output end pipeline of the liquid outlet channel is connected to the heat exchanger;

[0016] The input end of the second liquid inlet channel and the input end of the third liquid inlet channel are connected to the pipeline of the pump body and are respectively provided with a regulating valve 2 and a regulating valve 3.

[0017] According to the above technical solution, the front clamping assembly further comprises a base 1, the base 1 being fixedly connected to the frame, a fixing plate 1 being fixedly connected to a side of the base 1 away from the frame, a circular hole 1 being formed on the fixing plate 1, and the circular hole 1 and the circular hole 2 being coaxially arranged;

[0018] The disc 1 is fixedly connected to a side of the fixed plate 1 close to the mold guide assembly. The disc 1 is provided with three guide grooves 1 on a side away from the fixed plate 1. The three guide grooves 1 are all connected to the circular hole 2. A guide rod 1 is slidably connected in the guide groove 1. The guide rod 1 cooperates with the guide groove 1. The three clamping blocks 1 are respectively fixedly connected to one side of the three guide rods 1 close to the circular hole 2 along their length direction.

[0019] A hydraulic telescopic cylinder 3 is provided on the side of the guide rod 1 away from the clamping block 1, the fixed end of the hydraulic telescopic cylinder 3 is fixedly connected to the inner wall of the guide groove 1, and the output end of the hydraulic telescopic cylinder 3 is fixedly connected to the guide rod 1;

[0020] A first hydraulic telescopic cylinder is fixedly connected to one side of the fixed plate close to the mold guide assembly, an output end of the first hydraulic telescopic cylinder is fixedly connected to a transfer block, and a hydraulic clamp is fixedly connected to the side of the transfer block facing the rod material transmission center.

[0021] According to the above technical solution, the mold guide assembly also includes a mold base, the mold base is provided with a second cavity along the width direction of the frame, the mold is detachably sealed and installed in the second cavity, and the mold base is provided with a third circular hole on both sides along the length direction of the frame, the third circular hole is connected to the second cavity, and the third circular hole is coaxial with the second circular hole;

[0022] A collecting groove is provided on the inner wall of the circular hole three on the side of the mold base close to the front clamping assembly. The collecting groove is arranged on the side of the circular hole three close to the frame. A reflow channel is provided in the mold base. The input end of the reflow channel is connected to the collecting groove. The output end of the reflow channel passes through the mold base pipeline and is connected to a filter. The output end pipeline of the filter is connected to the liquid storage tank.

[0023] According to the above technical solution, the feeding assembly includes a bottom plate, which is fixedly connected to the frame, and a material transfer assembly is provided on the side of the bottom plate away from the front clamping assembly, and the material transfer assembly includes a plurality of rotatable rollers;

[0024] A connecting block 1 is provided on the side of the rotating roller close to the bottom plate, a groove 1 is provided on the side of the connecting block 1 away from the bottom plate, the rotating roller is located in the groove 1 and is rotatably connected to the inner wall of the groove 1, a hydraulic telescopic cylinder 1 is provided on the side of the connecting block 1 close to the bottom plate, the fixed end of the hydraulic telescopic cylinder 1 is fixedly connected to the bottom plate, and the output end of the hydraulic telescopic cylinder 1 is fixedly connected to the connecting block 1;

[0025] A block is provided on the side of the base plate close to the front clamping assembly, and a cavity 1 is opened in the block. Multiple sets of centering components are provided in the cavity 1, and the centering components include three hydraulic telescopic cylinders 2. The fixed ends of the three hydraulic telescopic cylinders 2 are fixedly connected to the inner wall of the cavity 1, and the output end of the hydraulic telescopic cylinder 2 is fixedly connected to the connecting block 2. The connecting block 2 is provided with a groove 2 on the side away from the hydraulic telescopic cylinder 2, and a pressure roller is rotatably connected in the groove 2.

[0026] According to the above technical solution, the rear clamping assembly includes a base 2 that is slidably connected to the frame, a fixed plate 2 is fixedly connected to the side of the base 2 away from the frame, a circular hole 4 is opened on the fixed plate 2, and the circular hole 4 is arranged coaxially with the cavity, and a disc 2 is fixedly connected to the side of the fixed plate 2 close to the mold guide assembly, and a circular hole 5 is opened on the disc 2, and the circular hole 4 is arranged coaxially with the circular hole 5;

[0027] Three guide grooves 2 are provided on the side of the disc 2 away from the fixed plate 2, and the three guide grooves 2 are all connected to the circular hole 5. A guide rod 2 is slidably connected in the guide groove 2, and the guide rod 2 cooperates with the guide groove 2. A clamping block 2 is fixedly connected to the side of the guide rod 2 close to the circular hole 5, and a hydraulic telescopic cylinder 5 is provided on the side of the guide rod 2 away from the clamping block 2. The fixed end of the hydraulic telescopic cylinder 5 is fixedly connected to the inner wall of the guide groove 2, and the output end of the hydraulic telescopic cylinder 5 is fixedly connected to the guide rod 2.

[0028] According to the above technical solution, the straightening assembly includes a roller group arranged linearly and evenly along the length direction of the frame, and each group of the roller group includes two groups of rollers symmetrically arranged in the vertical and horizontal directions based on the center line of the bar transmission.

[0029] According to the above technical solution, the cutting assembly includes two support rollers arranged along the bar material transmission direction, a liftable cutting table is arranged between the two support rollers, and a liftable cutting machine is arranged on the frame, wherein the roller shaft of a support roller close to the straightening assembly is fixedly connected to an encoder.

[0030] According to the above technical solution, the large diameter hole end of the inlet cone hole is arranged on the side close to the front clamping assembly, and the small diameter hole end of the inlet cone hole is in direct contact with the sizing sleeve;

[0031] The large diameter hole end of the outlet cone hole is arranged on the side close to the rear clamping assembly, and the small diameter hole end of the outlet cone hole is in direct contact with the sizing sleeve;

[0032] The inner diameter of the sizing sleeve is smaller than the diameter of the bar material, and the diameters of the small-diameter hole ends of the inlet cone and the outlet cone holes are consistent with the inner diameter of the sizing sleeve.

[0033] Compared with the prior art, the present invention has the following beneficial effects: the present invention, by providing the first cooling channel, the second cooling channel and the spray hole, cools the bar and related structures during the drawing process of the bar, thereby improving the drawing efficiency and quality of the bar;

[0034] By setting the centering assembly and the front clamping assembly, the problems of bar deviation and vibration are reduced during the bar drawing process, and the coaxiality between the bar and the drawing axis is improved, thereby improving the drawing quality of the bar;

[0035] By arranging the straightening assembly and the cutting assembly, the drawn bar material is straightened and cut, thereby further improving the drawing quality and production efficiency of the bar material. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0037] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0038] Figure 2 It is a schematic structural diagram of the feed assembly of the present invention;

[0039] Figure 3 The present invention Figure 2 Schematic diagram of the local enlarged structure of area A;

[0040] Figure 4 It is a schematic structural diagram of the front clamping assembly of the present invention;

[0041] Figure 5 It is a schematic structural diagram of the mold guide assembly of the present invention;

[0042] Figure 6 It is a schematic structural diagram of the rear clamping assembly of the present invention;

[0043] Figure 7 It is a schematic structural diagram of the straightening assembly of the present invention;

[0044] Figure 8 It is a schematic structural diagram of the cutting assembly of the present invention;

[0045] Figure 9 This is a schematic diagram of a top-view cross-sectional structure of a clamping block of the present invention;

[0046] Figure 10 This is a schematic diagram of a cross-sectional structure of a cooling channel of the present invention;

[0047] Figure 11 It is a schematic side sectional structural diagram of the mold guide assembly of the present invention;

[0048] Figure 12 Schematic diagram of the cooling system structure of the clamping block 1 and the mold associated with the present invention;

[0049] In the figure: 1. Frame; 2. Feed assembly; 3. Front clamping assembly; 4. Die guide assembly; 5. Rear clamping assembly; 6. Straightening assembly; 7. Bottom plate; 8. Material transfer assembly; 9. Roller; 10. Connecting block 1; 11. Groove 1; 12. Drive motor 1; 13. Hydraulic telescopic cylinder 1; 14. Block; 15. Cavity 1; 16. Centering assembly; 17. Hydraulic telescopic cylinder 2; 18. Connecting block 2; 19. Groove 2; 20. Pressing roller; 21. Drive motor 2; 22. Base 1; 23. Fixing plate 1 ; 24. Circular hole 1; 25. Circular disk 1; 26. Circular hole 2; 27. Guide groove 1; 28. Guide rod 1; 29. ​​Clamp 1; 30. Hydraulic telescopic cylinder 3; 31. Outer layer; 32. Inner layer; 33. Cooling channel 1; 34. Liquid inlet channel; 35. Pump body; 36. Liquid storage tank; 37. Regulating valve 1; 38. Liquid outlet channel; 39. Heat exchanger; 40. Fork channel 1; 41. Cutting assembly; 42. First hydraulic telescopic cylinder; 43. Adapter block; 44. Hydraulic clamp; 45. Die base; 46. Cavity 2; 4 7. Circular hole three; 48. Base; 49. Inlet cone; 50. Sizing sleeve; 51. Outlet cone; 52. Spray hole; 53. Annular water channel; 54. Liquid inlet channel one; 55. Cooling channel two; 56. Fork channel two; 57. Filter; 58. Liquid inlet channel two; 59. Liquid inlet channel three; 60. Liquid outlet channel; 61. Regulating valve two; 62. Regulating valve three; 63. Base two; 64. Hydraulic telescopic cylinder four; 65. Groove four; 66. Slide; 67. Guide rail; 68. Fixed plate two; 69. Circular hole four; 70. Disc 2; 71. Round hole five; 72. Guide groove two; 73. Guide rod two; 74. Clamp two; 75. Hydraulic telescopic cylinder five; 76. Roller group; 77. Roller; 78. Connecting block three; 79. Groove three; 80. Hydraulic telescopic cylinder six; 81. Connecting plate; 82. Connecting frame; 83. Support roller; 84. Connecting block four; 85. Hydraulic telescopic cylinder seven; 86. Cutting table; 87. Cutting machine; 88. Hydraulic telescopic cylinder eight; 89. Support plate; 90. Hydraulic telescopic cylinder nine; 91. Collecting tank; 92. Return channel. DETAILED DESCRIPTION

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0051] See also Figure 1-12The present invention provides a technical solution: a high-efficiency hydraulic drawing and straightening machine, including a frame 1, on which a feeding component 2, a front clamping component 3, a mold guide component 4, a rear clamping component 5, a straightening component 6, and a cutting component 41 are sequentially arranged along the bar transmission direction.

[0052] like Figure 2 The feeding assembly 2 includes a bottom plate 7, which is fixedly connected to the frame 1. A material transfer assembly 8 is provided on the side of the bottom plate 7 away from the front clamping assembly 3;

[0053] like Figure 3 The material transfer assembly 8 includes a plurality of rotatable rollers 9, which are V-shaped rollers. The plurality of rollers 9 are linearly and evenly arranged along the length direction of the bottom plate 7. A connecting block 10 is provided on the side of the roller 9 close to the bottom plate 7. A groove 11 is provided on the side of the connecting block 10 away from the bottom plate 7. The roller 9 is located in the groove 11 and is rotatably connected to the inner wall of the groove 11. One end of the roller shaft of the roller 9 passes through the groove 11 and is fixedly connected to a drive motor 12. The drive motor 12 is used to drive the roller 9 to rotate, thereby driving the bar material on the roller 9 to be transported to the side of the front clamping assembly 3.

[0054] A hydraulic telescopic cylinder 13 is provided on one side of the connecting block 10 close to the base plate 7. The fixed end of the hydraulic telescopic cylinder 13 is fixedly connected to the base plate 7, and the output end of the hydraulic telescopic cylinder 13 is fixedly connected to the connecting block 10. By controlling the output end of the hydraulic telescopic cylinder 13, the height of the roller 9 is adjusted, so that the center axes of bars of different diameters are kept at the same height during transportation.

[0055] like Figure 2 A block 14 is provided on one side of the bottom plate 7 close to the front clamping assembly 3. A cavity 15 is provided in the block 14. The cavity 15 is a cylindrical cavity with openings at both ends. A plurality of centering assemblies 16 are provided in the cavity 15. The plurality of centering assemblies 16 are linearly and evenly arranged along the central axis of the cavity 15.

[0056] like Figure 3 The centering component 16 includes three hydraulic telescopic cylinders 17. The three hydraulic telescopic cylinders 17 are evenly distributed on the circumference with the central axis of the cavity 15 as the reference. The fixed ends of the three hydraulic telescopic cylinders 17 are fixedly connected to the inner wall of the cavity 15. The output end of the hydraulic telescopic cylinder 17 is fixedly connected to a connecting block 18. A groove 19 is provided on the side of the connecting block 18 away from the hydraulic telescopic cylinder 17. A pressure roller 20 is rotatably connected in the groove 19. The three pressure rollers 20 press and center the bars of different diameters passing through the cavity 15.

[0057] One end of the roller shaft of the three pressing rollers 20 passes through the groove 2 19 and is fixedly connected to the drive motor 21. The drive motor 21 drives the pressing rollers 20 to rotate. After the bar material is centered, the bar material can be transported.

[0058] like Figure 4 The front clamping assembly 3 includes a base 22, which is fixedly connected to the frame 1. A fixing plate 23 is fixedly connected to the side of the base 22 away from the frame 1. A circular hole 24 is opened on the fixing plate 23. The circular hole 24 is coaxially arranged with the cavity 15. A disc 25 is fixedly connected to the side of the fixing plate 23 close to the mold guide assembly 4. A circular hole 26 with the same diameter as the circular hole 24 is opened on the disc 25. The circular hole 24 and the circular hole 26 are coaxially arranged.

[0059] Three guide grooves 27 are formed on a side of the disk 25 away from the fixed plate 23. The three guide grooves 27 are evenly distributed around the circumference of the circular hole 26 with the axis of the circular hole 26 as the center. The three guide grooves 27 are all connected to the circular hole 26. A guide rod 28 is slidably connected to the guide groove 27. The guide rod 28 cooperates with the guide groove 27. A clamping block 29 is fixedly connected to the end of the guide rod 28 near the circular hole 26.

[0060] The contact surface between the clamping block 29 and the bar material has arc chamfers on both sides along the axial direction of the clamping block 29 to prevent the bar material from causing excessive damage and friction during the drawing process.

[0061] A hydraulic telescopic cylinder three 30 is provided on the side of the guide rod 28 away from the clamping block 29. The fixed end of the hydraulic telescopic cylinder three 30 is fixedly connected to the inner wall of the guide groove 27. The output end of the hydraulic telescopic cylinder three 30 is fixedly connected to the guide rod 28. The hydraulic telescopic cylinder three 30 indirectly drives the clamping block 29 to move toward the center of the circular hole 26, thereby clamping the bar passing through the circular hole 26.

[0062] like Figure 9 The clamping block 29 adopts a double-layer composite structure. The clamping block 29 includes an outer layer 31 and an inner layer 32. The outer layer 31 wraps the inner layer 32. The outer layer 31 is made of cemented carbide material and has ultra-high wear resistance. The inner layer 32 is made of copper alloy material and has good thermal conductivity.

[0063] A cooling channel 1 33 is provided on the inner layer 32 near the second circular hole 26. The cooling channel 1 33 is a conical spiral cavity (Φ3mm×8 turns). The end of the cooling channel 1 33 near the center of the spiral is the input end, and the end of the cooling channel 1 33 away from the center of the spiral is the output end. The clamping block 1 29 is provided with a liquid inlet channel 34. The output end of the liquid inlet channel 34 is connected to the input end of the cooling channel 1 33.

[0064] like Figure 12 The input end of the liquid inlet channel 34 passes through the clamp block 29 and is connected to the pump body 35. The input end of the pump body 35 is connected to the liquid storage tank 36. A regulating valve 37 is provided on the pipeline connecting the input end of the liquid inlet channel 34 to the pump body 35.

[0065] like Figure 9 The clamping block 29 is provided with a liquid outlet channel 38, and the input end of the liquid outlet channel 38 is connected to the output end of the cooling channel 33;

[0066] like Figure 12 The output end of the liquid outlet channel 38 passes through the clamp block 29 and is connected to the heat exchanger 39. The heat exchanger 39 is a plate heat exchanger. The output end of the heat exchanger 39 is connected to the liquid storage tank 36.

[0067] The coolant enters the cooling channel 1 33 through the pump body 35 and the liquid inlet channel 34, and performs heat exchange cooling on the outer layer 31 of the clamp 29 through the cooling channel 1 33. The coolant after absorbing heat enters the heat exchanger 39 through the liquid outlet channel 38. The heat exchanger 39 performs heat exchange cooling on the coolant. The cooled coolant enters the liquid storage tank 36 to continue to participate in the heat exchange cooling of the cooling channel 1 33, thereby realizing cyclic heat exchange cooling of the cooling channel 1 33.

[0068] like Figure 10 Several groups of oblique forked channels 1 are opened on the side of the inner wall of the cooling channel 33 near the circular hole 26. The several oblique forked channels 1 are evenly arranged along the spiral path of the cooling channel 33. Each group of oblique forked channels 1 includes two forked channels 1 40. The two forked channels 1 40 are symmetrically distributed with the radial center of the cross section at the corresponding position of the cooling channel 1 33 as the center. Both forked channels 1 40 have a tree-like branch structure (the end is Φ0.5mm). The heat exchange area of ​​the outer layer 31 is increased by the oblique forked channels 1, thereby improving the cooling efficiency of the clamping block 1 29.

[0069] A pressure sensor is embedded in the joint between the clamping block 29 and the guide rod 28. The pressure sensor signal is connected to the processor. The pressure sensor is used to detect the clamping force of the clamping block 29 on the bar;

[0070] A temperature sensor is embedded at the junction of the inner layer 32 and the outer layer 31 of the clamping block 1 29 near the side of the circular hole 26. The temperature sensor is connected to the processor signal, and the temperature receiving end of the temperature sensor is in contact with the outer layer 31 of the clamping block 1 29, thereby monitoring the heat generated by the outer layer 31 of the clamping block 1 29;

[0071] The regulating valve 37 is connected to the processor signal. The processor comprehensively judges and controls the flow rate (L / min) of the coolant delivered by the regulating valve 37 based on the clamping pressure of the clamping block 29 and the generated temperature.

[0072] like Figure 4 A first hydraulic telescopic cylinder 42 is fixedly connected to one side of the fixed plate 23 close to the mold guide assembly 4, an output end of the first hydraulic telescopic cylinder 42 is fixedly connected to a transfer block 43, and a hydraulic clamp 44 is fixedly connected to the side of the transfer block 43 facing the rod material transmission center.

[0073] like Figure 5 The mold guide assembly 4 includes a mold base 45, which is fixedly connected to the frame 1. The mold base 45 is provided with a second cavity 46 along the width direction of the frame 1. The mold is detachably and sealedly installed in the second cavity 46. The second cavity 46 is a rectangular cavity. The second cavity 46 is open on both sides along the width direction of the frame 1 to facilitate the disassembly of the mold. The mold base 45 is provided with a third circular hole 47 on both sides along the length direction of the frame 1. The third circular hole 47 is connected to the second cavity 46. The third circular hole 47 is coaxial with the second circular hole 26.

[0074] The mold includes a base 48, which is a rectangular block. The base 48 cooperates with the second cavity 46, and a center hole is opened on the base 48;

[0075] like Figure 11 An inlet cone 49, a sizing sleeve 50, and an outlet cone 51 are detachably installed in the center hole. The inlet cone 49, the sizing sleeve 50, and the outlet cone 51 are coaxially arranged with the circular hole 47. The inlet cone 49, the sizing sleeve 50, and the outlet cone 51 are sequentially arranged along the feeding direction of the bar. The bar is drawn through the inlet cone 49, the sizing sleeve 50, and the outlet cone 51.

[0076] The inlet cone 49 and the outlet cone 51 are both cylindrical bodies with a tapered through hole. The large-diameter hole end of the inlet cone 49 is located on the side close to the front clamping assembly 3, and the small-diameter hole end of the inlet cone 49 is in direct contact with the sizing sleeve 50. The inlet cone 49 is used to reduce the resistance caused by the deformation of the bar entering the sizing sleeve 50.

[0077] The large diameter hole end of the outlet cone 51 is arranged near the side of the rear clamping assembly 5, and the small diameter hole end of the outlet cone 51 is in direct contact with the sizing sleeve 50. The outlet cone 51 is used to make the bar material smoothly transition after drawing, release residual stress, and avoid tearing of the bar material surface after drawing;

[0078] The sizing sleeve 50 is a column with a cylindrical cavity and openings at both ends along the axis. The inner diameter of the sizing sleeve 50 is smaller than the diameter of the bar and is used to control the diameter, straightness and surface quality of the drawn bar.

[0079] The diameter of the small-diameter hole ends of the inlet cone 49 and the outlet cone 51 is consistent with the inner diameter of the sizing sleeve 50.

[0080] A plurality of spray holes 52 are formed on one side of the conical hole of the inlet cone 49 near the sizing sleeve 50. The spray holes 52 are evenly distributed around the circumference of the inlet cone 49. An annular water channel 53 is formed in the inlet cone 49 and communicates with the spray holes 52. The inlet cone 49 also has a liquid inlet channel 1 54 that communicates with the annular water channel 53.

[0081] A second cooling channel 55 is provided in the sizing sleeve 50. The second cooling channel 55 is a cylindrical spiral cavity coaxially arranged with the sizing sleeve 50. The port of the second cooling channel 55 close to the inlet cone 49 is the input end, and the port of the cooling channel close to the outlet cone 51 is the output end.

[0082] Several groups of oblique forked channels 2 are opened on one side of the inner wall of the cooling channel 2 55 near the center of the sizing sleeve 50. The several oblique forked channels 2 are evenly arranged along the spiral path of the cooling channel 2 55. Each group of oblique forked channels 2 includes two forked channels 2 56. The two forked channels 2 56 are symmetrically distributed with the radial center of the corresponding cross section of the cooling channel 2 55 as the center. The forked channels 2 56 have a tree-like branch structure (the end is Φ0.5mm). The oblique forked channels 2 increase the heat exchange area of ​​the sizing sleeve 50 and improve the cooling efficiency of the sizing sleeve 50.

[0083] A second liquid inlet channel 58 is provided in the base body 48 corresponding to the first liquid inlet channel 54 , and the first liquid inlet channel 54 is in sealed communication with the second liquid inlet channel 58 ;

[0084] The base body 48 is provided with a third liquid inlet channel 59 at the input end corresponding to the second cooling channel 55 . The third liquid inlet channel 59 is in sealed communication with the input end of the second cooling channel 55 . The base body 48 is provided with a liquid outlet channel 60 at the output end corresponding to the second cooling channel 55 . The liquid outlet channel 60 is in sealed communication with the output end of the second cooling channel 55 .

[0085] like Figure 12 , the input end of the second liquid inlet channel 58 and the input end of the third liquid inlet channel 59 are connected to the pump body 35 through a multi-way valve pipeline;

[0086] The input end of the second liquid inlet channel 58 and the input end of the third liquid inlet channel 59 are connected to the pipeline of the pump body 35, respectively provided with a regulating valve 2 61 and a regulating valve 3 62. The regulating valve 2 61 and the regulating valve 3 62 are used to adjust the flow rate of the coolant entering the second liquid inlet channel 58 and the third liquid inlet channel 59 respectively.

[0087] The output end pipeline of the liquid outlet channel 60 is connected to the heat exchanger 39, so that the heat exchanger 39 can simultaneously perform heat exchange cooling on the coolant flowing through the cooling channel 1 33 and the cooling channel 2 55.

[0088] A thermocouple is embedded in the base 48 for monitoring the temperature of the sizing sleeve 50 , and the thermocouple is connected to the processor signal.

[0089] like Figure 5 A collecting groove 91 is provided on the inner wall of the circular hole 3 47 on the side of the mold base 45 close to the front clamping assembly 3. The collecting groove 91 is provided on the side of the circular hole 3 47 close to the frame 1 for collecting the coolant sprayed from the spray hole 52.

[0090] like Figure 11 A return channel 92 is provided in the mold base 45 , and the input end of the return channel 92 is connected to the collection tank 91 ;

[0091] like Figure 12 The output end of the return channel 92 passes through the mold base 45 and is connected to a filter 57. The filter 57 is a coolant filter. The coolant filter is a conventional technology used to filter and separate impurities in the coolant.

[0092] The output end pipeline of the filter 57 is connected to the liquid storage tank 36, thereby improving the recovery rate of the coolant and realizing circular utilization.

[0093] like Figure 6 The rear clamping assembly 5 includes a second base 63, which is slidably connected to the frame 1. Two hydraulic telescopic cylinders 4 64 are provided on the side of the second base 63 away from the mold guide assembly 4. The two hydraulic telescopic cylinders 4 64 are horizontally arranged. The two hydraulic telescopic cylinders 4 64 are respectively arranged on both sides of the frame 1 along the width direction. The fixed ends of the two hydraulic telescopic cylinders 4 64 are fixedly connected to the frame 1, and the output ends of the two hydraulic telescopic cylinders 4 64 are fixedly connected to the second base 63;

[0094] Two slide grooves 66 are provided on the base 2 63 , and the two slide grooves 66 are dovetail grooves. A guide rail 67 is fixedly connected to the corresponding slide groove 66 on the frame 1 . The guide rail 67 cooperates with the slide groove 66 , thereby driving the base 2 63 to slide through the hydraulic telescopic cylinder 4 64 .

[0095] A second fixing plate 68 is fixedly connected to the side of the second base 63 away from the frame 1. The second fixing plate 68 has a fourth circular hole 69 formed therein. The fourth circular hole 69 is coaxially arranged with the first cavity 15. A second disc 70 is fixedly connected to the side of the second fixing plate 68 close to the mold guide assembly 4. The second disc 70 has a fifth circular hole 71 having the same diameter as the fourth circular hole 69 formed therein. The fourth circular hole 69 and the fifth circular hole 71 are coaxially arranged.

[0096] Three guide grooves 72 are formed on the side of the second disc 70 away from the second fixing plate 68. The three guide grooves 72 are evenly distributed around the circumference of the fifth circular hole 71 and are all connected to the fifth circular hole 71. A guide rod 73 is slidably connected to the second guide groove 72 and engages with the second guide groove 72. A clamping block 74 is fixedly connected to the side of the second guide rod 73 near the fifth circular hole 71.

[0097] A hydraulic telescopic cylinder 5 75 is provided on the side of the guide rod 2 73 away from the clamping block 2 74. The fixed end of the hydraulic telescopic cylinder 5 75 is fixedly connected to the inner wall of the guide groove 2 72. The output end of the hydraulic telescopic cylinder 5 75 is fixedly connected to the guide rod 2 73. The hydraulic telescopic cylinder 5 75 indirectly drives the clamping block 2 74 to move toward the center of the circular hole 5 71, thereby clamping and fixing the bar material passing through the circular hole 26.

[0098] like Figure 7The straightening assembly 6 includes roller groups 76 that are linearly and evenly arranged along the length direction of the frame 1. Each roller group 76 includes two groups of rollers 77 that are symmetrically arranged in the vertical direction and the horizontal direction based on the center line of the bar transmission;

[0099] A connecting block 3 78 is provided on the side of each roller 77 away from the center line of the bar material transmission. The connecting block 3 78 is provided with a groove 3 79. The roller 77 is located in the groove 3 79 and is rotatably connected to the inner wall of the groove 3 79.

[0100] A hydraulic telescopic cylinder 6 80 is fixedly connected to the side of the connecting block 3 78 away from the roller 77, wherein the fixed end of the hydraulic telescopic cylinder 6 80, which is symmetrically arranged in the vertical direction with respect to the center line of the bar material transmission, is fixedly connected to a connecting plate 81, and the connecting plate 81 is fixedly connected to the frame 1;

[0101] The fixed end of the hydraulic telescopic cylinder 6 80 symmetrically arranged in the horizontal direction with the center line of the bar material transmission as the reference is fixedly connected to the connecting frame 82, the connecting frame 82 is a rectangular frame, and the connecting frame 82 is fixedly connected to the frame 1;

[0102] The hydraulic telescopic cylinder 6 80 controls the corresponding roller 77 to straighten the drawn bar in the horizontal and vertical directions.

[0103] like Figure 8 The cutting assembly 41 includes two support rollers 83 arranged along the bar material transmission direction. A connecting block 84 is provided on the side of the two support rollers 83 close to the frame 1. A groove 65 is provided on the side of the connecting block 84 away from the frame 1. The support rollers 83 are located in the groove 65 and are rotatably connected to the groove 65.

[0104] A hydraulic telescopic cylinder 7 85 is provided on one side of the connecting block 4 84 close to the frame 1 , the fixed end of the hydraulic telescopic cylinder 7 85 is fixedly connected to the frame 1 , and the output end of the hydraulic telescopic cylinder 7 85 is fixedly connected to the connecting block 4 84 .

[0105] A lifting cutting table 86 is provided between the two supporting rollers 83, and a lifting cutting machine 87 is provided on the frame 1. The cutting machine 87 is a cutting machine commonly used in cutting rods.

[0106] A hydraulic telescopic cylinder 88 is provided at the four corners of one side of the cutting table 86 close to the frame 1. The fixed end of the hydraulic telescopic cylinder 88 is fixedly connected to the frame 1, and the output end of the hydraulic telescopic cylinder 88 is fixedly connected to the cutting table 86.

[0107] The base of the cutting machine 87 is fixedly connected to a support plate 89. Hydraulic telescopic cylinders 90 are provided at the four corners of the support plate 89 close to the frame 1. The fixed end of the hydraulic telescopic cylinder 90 is fixedly connected to the frame 1, and the output end of the hydraulic telescopic cylinder 90 is fixedly connected to the support plate 89.

[0108] A cutting slot is provided at the output end of the cutting table 86 corresponding to the output end of the cutting machine 87 to prevent the output end of the cutting machine 87 from colliding with the cutting table 86;

[0109] The roller shaft of a support roller 83 close to the straightening component 6 passes through the groove 4 65 and is fixedly connected to an encoder for calculating the length of the bar passing through the support roller 83, so that the cutting machine 87 can cut the bar to a specified length.

[0110] In this embodiment, the bar is placed on the roller 9 of the material transfer assembly 8. According to the diameter of the bar, the extension degree of the output end of the hydraulic telescopic cylinder 13 is adjusted to control the axis of the bar to be concentric with the axis of the cavity 15.

[0111] Start the drive motor 12 to make the roller 9 drive the bar to move into the cavity 15. After the bar moves into the cavity 15, the output end of the hydraulic telescopic cylinder 2 17 is extended by controlling the pressure roller 20 to press and center the bar. At the same time, start the drive motor 21 to make the pressure roller 20 control the centering of the bar and drive the bar to move toward the side of the front clamping component 3.

[0112] After the bar passes through the circular hole 1 24 and the circular hole 2 26 of the front clamping assembly 3, the output end of the hydraulic telescopic cylinder 3 30 is controlled to extend, so that the clamping block 1 29 clamps the bar;

[0113] The bar is then clamped by the hydraulic clamp 44, and the output end of the first hydraulic telescopic cylinder 42 is controlled to extend to send the end of the bar into the output port of the mold guide assembly 4. The pressure exerted by the clamping block 29 on the bar enables the hydraulic clamp 44 to drive the bar to continue moving.

[0114] The hydraulic clamp 44 clamps the bar material, and the end of the bar material passes through the inlet cone 49, the sizing sleeve 50, the outlet cone 51 in sequence, and passes through the die guide assembly 4. After the end of the bar material passes through the die guide assembly 4, the hydraulic clamp 44 releases the bar material and is reset by the first hydraulic telescopic cylinder 42;

[0115] In the initial state, the rear clamping assembly 5 is abutted against one side of the die guide assembly 4, and the output end of the hydraulic telescopic cylinder 5 75 is controlled to extend, so that the clamping block 2 74 clamps and fixes the side of the bar material passing through the die guide assembly 4, and then the output end of the hydraulic telescopic cylinder 4 64 is controlled to retract, so that the clamping block 2 74 pulls the bar material to move toward the side of the straightening assembly 6;

[0116] While the end of the bar is pulled by the second clamping block 74, the first clamping block 29 continues to clamp the bar, thereby improving the stability of the axis of the bar during the drawing process and preventing the bar from deflecting;

[0117] The bar enters the sizing sleeve 50 through the inlet cone 49 of the die guide assembly 4 and is deformed under the action of the sizing sleeve 50 , thereby transmitting the diameter, straightness and surface smoothness required for drawing through the sizing sleeve 50 .

[0118] The pressure and temperature generated by the rod and the clamping block 29 during the drawing process are monitored by a pressure sensor and a temperature sensor respectively. The temperature generated by the rod and the sizing sleeve 50 during the drawing process is monitored by a thermocouple.

[0119] The processor has three operating modes for each of the regulating valve 1 37 , regulating valve 2 61 and regulating valve 3 62 , including energy-saving mode, standard mode and enhanced cooling mode. The actual temperature monitored by the processor's preset temperature sensor and thermocouple is denoted as T.

[0120] The processor divides the temperature of the clamping block 29 and the sizing sleeve 50 into intervals as follows:

[0121] When T is less than 60℃, the energy-saving mode is enabled. At this time, the regulating valve 1 37, the regulating valve 2 61 and the regulating valve 3 62 all control the flow rate of the coolant to 3-5L / min.

[0122] When 60℃≤T<90℃, the standard mode is enabled. At this time, the regulating valve 1 37, the regulating valve 2 61 and the regulating valve 3 62 all control the flow rate of the coolant to 6-10L / min;

[0123] When 90°C≤T<120°C, the enhanced cooling mode is enabled. At this time, the regulating valve 1 37, the regulating valve 2 61 and the regulating valve 3 62 all control the flow rate of the coolant to be 12-15 L / min.

[0124] When T≥120℃, the enhanced cooling mode is enabled. At this time, the regulating valve 1 37, the regulating valve 2 61 and the regulating valve 3 62 all control the flow rate of the coolant to 12-15L / min, and the shutdown process is performed at the same time.

[0125] During the drawing process of the bar, the pressure exerted by the bar on the clamping block 29 varies due to the drawing time and the deviation and roughness of the bar surface diameter.

[0126] The actual pressure of the pressure sensor is preset by the processor and recorded as Y;

[0127] The pressure of the clamping block 29 is divided into intervals by the processor as follows:

[0128] When Y < 30N, the energy-saving mode is enabled. At this time, the regulating valve 37 controls the flow rate of the coolant to 3-5 L / min.

[0129] When 30N≤Y<45N, the standard mode is enabled. At this time, the regulating valve 37 controls the flow rate of the coolant to 6-10L / min.

[0130] When 45N≤Y<60N, the enhanced cooling mode is enabled. At this time, the regulating valve 37 controls the flow rate of the coolant to 12-15L / min.

[0131] When Y≥60N, the enhanced cooling mode is enabled. At this time, the regulating valve 37 controls the flow of the coolant at 12-15L / min and the machine is shut down.

[0132] The temperature, pressure and working mode associated with the clamp 29 are comprehensively processed by the processor as follows:

[0133] When the temperature and pressure ranges are in the same working mode, the corresponding working mode is used for cooling;

[0134] For example: if the pressure Y = 25N (corresponding to the energy-saving mode) and the temperature T = 55°C (corresponding to the energy-saving mode), the energy-saving mode will be executed.

[0135] When the temperature and pressure ranges correspond to two different working modes, one of the two working modes with a higher cooling effect is adopted.

[0136] For example, if the pressure Y = 40N (corresponding to the standard mode) and the temperature T = 110°C (corresponding to the enhanced cooling mode), the enhanced cooling mode will be executed.

[0137] After the coolant is sprayed out from the spray hole 52 on the inlet cone 49 for spraying, the coolant flows into the collection tank 91, enters the filter 57 through the return channel 92 for filtration, and then re-enters the liquid storage tank 36 to participate in circulating cooling.

[0138] After the rear clamping assembly 5 clamps the bar material and moves close to the straightening assembly 6, the straightening assembly 6 is moved close to a group of roller wheels 76 of the rear clamping assembly 5 to clamp and straighten the bar material;

[0139] Then, the output end of the hydraulic telescopic cylinder 5 75 is controlled to retract, so that the clamping block 2 74 does not clamp the bar material. Subsequently, the output end of the hydraulic telescopic cylinder 4 64 is controlled to extend again, so that the rear clamping assembly 5 moves toward the side of the mold guide assembly 4 and resets;

[0140] The output end of the hydraulic telescopic cylinder 5 75 is controlled to extend to clamp the bar again, and the output end of the hydraulic telescopic cylinder 4 64 is retracted again, and the bar is pulled through the rear clamping assembly 5 again;

[0141] At the same time, the bar material drawn out for the first time is straightened by the straightening assembly 6 and then enters the cutting assembly 41;

[0142] Control the output end of the hydraulic telescopic cylinder 85 to extend so that the support roller 83 supports and transmits the drawn bar material;

[0143] Then, the output end of the hydraulic telescopic cylinder 88 is controlled to extend so that the support platform supports the bar material, and then the output end of the hydraulic telescopic cylinder 90 is controlled to retract, and at the same time, the cutting machine 87 is started to cut the bar material. When the cutting machine 87 completes the cutting, the section of the bar material clamped by the rear clamping component 5 is removed, thereby completing the work of drawing, straightening and cutting the bar material.

[0144] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "includes," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0145] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A high-efficiency hydraulic drawing and straightening machine, characterized by: The machine frame (1) comprises a feeding assembly (2), a front clamping assembly (3), a die guide assembly (4), a rear clamping assembly (5), a straightening assembly (6), and a cutting assembly (41) which are sequentially arranged on the machine frame (1) along the bar material transmission direction; The front clamping assembly (3) includes a disc (25), a circular hole (26) is provided on the disc (25), and three clamping blocks (29) are provided on the disc (25) and slide along the radial direction of the circular hole (26); The clamping block (29) includes an outer layer (31) and an inner layer (32), and a cooling channel (33) is provided inside the inner layer (32) on a side close to the circular hole (26), and the cooling channel (33) is a conical spiral cavity. The inner wall of the cooling channel (33) is provided with a plurality of groups of oblique forked channels (1) on a side close to the circular hole (26), and each group of the oblique forked channels (1) includes two forked channels (40); The mold guide assembly (4) includes a mold, and the mold includes a base (48). A center hole is provided on the base (48), and an inlet cone (49), a sizing sleeve (50), and an outlet cone (51) are sequentially installed in the center hole along the feeding direction of the rod material. The cone hole of the inlet cone (49) is provided with a plurality of spray holes (52). The sizing sleeve (50) is provided with a cooling channel 2 (55), and the cooling channel 2 (55) is a cylindrical spiral cavity. The inner wall of the cooling channel 2 (55) is provided with a plurality of groups of inclined fork channels 2 on the side close to the center of the sizing sleeve (50), and each group of the inclined fork channels 2 includes two fork channels 2 (56), and the fork channel 1 (40) and the fork channel 2 (56) are both tree-like branch structures; The clamping block (29) is embedded with a pressure sensor and a temperature sensor, the base (48) is embedded with a thermocouple, and the temperature sensor, pressure sensor and thermocouple are all connected to a processor; The mold guide assembly (4) further comprises a mold base (45), wherein the mold base (45) is provided with three circular holes (47) on both sides along the length direction of the frame (1), and a collecting groove (91) is provided on the inner wall of the circular hole (47) on the side of the mold base (45) close to the front clamping assembly (3). A return channel (92) is provided in the mold base (45), wherein the input end of the return channel (92) is connected to the collecting groove (91), and the output end of the return channel (92) passes through the mold base (45) pipeline and is connected to a filter (57).

2. The high-efficiency hydraulic drawing and straightening machine according to claim 1, characterized in that: The end of the cooling channel (33) close to the spiral center is the input end, and the end of the cooling channel (33) away from the spiral center is the output end. The clamping block (29) is provided with a liquid inlet channel (34). The output end of the liquid inlet channel (34) is connected to the input end of the cooling channel (33). The input end of the liquid inlet channel (34) passes through the clamping block (29) and is connected to a pump body (35). The input end of the pump body (35) is connected to a liquid storage tank (36). A regulating valve (37) is provided on the pipeline connecting the input end of the liquid inlet channel (34) to the pump body (35). The clamp block 1 (29) is provided with a liquid outlet channel (38), the input end of the liquid outlet channel (38) is connected to the output end of the cooling channel 1 (33), the output end of the liquid outlet channel (38) passes through the clamp block 1 (29) pipeline and is connected to a heat exchanger (39), and the output end pipeline of the heat exchanger (39) is connected to the liquid storage tank (36).

3. The high-efficiency hydraulic drawing and straightening machine according to claim 2, characterized in that: The inlet cone (49) is provided with an annular water channel (53) communicating with the spray hole (52), the inlet cone (49) is provided with a first liquid inlet channel (54) communicating with the annular water channel (53), and the base (48) is provided with a second liquid inlet channel (58) sealedly communicating with the first liquid inlet channel (54); The base body (48) is provided with a liquid inlet channel 3 (59) which is in sealed communication with the input end of the cooling channel 2 (55), and the base body (48) is provided with a liquid outlet channel (60) which is in sealed communication with the output end of the cooling channel 2 (55); The input end of the second liquid inlet channel (58) and the input end of the third liquid inlet channel (59) are both connected to the pump body (35) through a multi-way valve pipeline, and the output end pipeline of the liquid outlet channel (60) is connected to the heat exchanger (39); The input end of the second liquid inlet channel (58) and the input end of the third liquid inlet channel (59) are connected to the pipeline of the pump body (35), and a regulating valve 2 (61) and a regulating valve 3 (62) are respectively provided.

4. The high-efficiency hydraulic drawing and straightening machine according to claim 3, characterized in that: The front clamping assembly (3) further comprises a base (22), wherein the base (22) is fixedly connected to the frame (1), and a fixing plate (23) is fixedly connected to the side of the base (22) away from the frame (1), and a circular hole (24) is provided on the fixing plate (23), and the circular hole (24) and the circular hole (26) are coaxially arranged. The disc 1 (25) is fixedly connected to a side of the fixed plate 1 (23) close to the mold guide assembly (4), and three guide grooves 1 (27) are provided on a side of the disc 1 (25) away from the fixed plate 1 (23). The three guide grooves 1 (27) are all connected to the circular hole 2 (26). A guide rod 1 (28) is slidably connected in the guide groove 1 (27). The guide rod 1 (28) cooperates with the guide groove 1 (27). The three clamping blocks 1 (29) are respectively fixedly connected to the three guide rods 1 (28) along the length direction thereof close to the circular hole 2 (26); A hydraulic telescopic cylinder three (30) is provided on the side of the guide rod one (28) away from the clamping block one (29), the fixed end of the hydraulic telescopic cylinder three (30) is fixedly connected to the inner wall of the guide groove one (27), and the output end of the hydraulic telescopic cylinder three (30) is fixedly connected to the guide rod one (28); A first hydraulic telescopic cylinder (42) is fixedly connected to one side of the fixed plate (23) close to the mold guide assembly (4), an output end of the first hydraulic telescopic cylinder (42) is fixedly connected to a transfer block (43), and a hydraulic clamp (44) is fixedly connected to the side of the transfer block (43) facing the rod material transmission center.

5. The high-efficiency hydraulic drawing and straightening machine according to claim 4, characterized in that: The mold base (45) is provided with a second cavity (46) along the width direction of the frame (1), the mold is detachably sealed and installed in the second cavity (46), the third circular hole (47) is connected to the second cavity (46), and the third circular hole (47) is coaxially arranged with the second circular hole (26); The collecting tank (91) is arranged on one side of the circular hole three (47) close to the frame (1), and the output end pipeline of the filter (57) is connected to the liquid storage tank (36).

6. The high-efficiency hydraulic drawing and straightening machine according to claim 5, characterized in that: The feeding assembly (2) includes a bottom plate (7), the bottom plate (7) is fixedly connected to the frame (1), and a material transfer assembly (8) is provided on a side of the bottom plate (7) away from the front clamping assembly (3), and the material transfer assembly (8) includes a plurality of rotatable rollers (9); A connecting block (10) is provided on the side of the roller (9) close to the bottom plate (7), a groove (11) is provided on the side of the connecting block (10) away from the bottom plate (7), the roller (9) is located in the groove (11) and is rotatably connected to the inner wall of the groove (11), a hydraulic telescopic cylinder (13) is provided on the side of the connecting block (10) close to the bottom plate (7), the fixed end of the hydraulic telescopic cylinder (13) is fixedly connected to the bottom plate (7), and the output end of the hydraulic telescopic cylinder (13) is fixedly connected to the connecting block (10); A block (14) is provided on one side of the bottom plate (7) close to the front clamping assembly (3), a cavity (15) is provided in the block (14), a plurality of centering assemblies (16) are provided in the cavity (15), and the centering assemblies (16) include three hydraulic telescopic cylinders (17), the fixed ends of the three hydraulic telescopic cylinders (17) are fixedly connected to the inner wall of the cavity (15), the output end of the hydraulic telescopic cylinder (17) is fixedly connected to a connecting block (18), a groove (19) is provided on the side of the connecting block (18) away from the hydraulic telescopic cylinder (17), and a pressure roller (20) is rotatably connected in the groove (19).

7. The high-efficiency hydraulic drawing and straightening machine according to claim 6, characterized in that: The rear clamping assembly (5) includes a base 2 (63) slidably connected to the frame (1), a fixed plate 2 (68) is fixedly connected to the side of the base 2 (63) away from the frame (1), a circular hole 4 (69) is provided on the fixed plate 2 (68), and the circular hole 4 (69) is coaxially arranged with the cavity 1 (15), and a disc 2 (70) is fixedly connected to the side of the fixed plate 2 (68) close to the mold guide assembly (4), a circular hole 5 (71) is provided on the disc 2 (70), and the circular hole 4 (69) is coaxially arranged with the circular hole 5 (71); The disc 2 (70) is provided with three guide grooves 2 (72) on the side away from the fixed plate 2 (68), and the three guide grooves 2 (72) are all connected to the circular hole 5 (71). A guide rod 2 (73) is slidably connected in the guide groove 2 (72), and the guide rod 2 (73) cooperates with the guide groove 2 (72). The side of the guide rod 2 (73) close to the circular hole 5 (71) is fixedly connected to the clamping block 2 (74), and the side of the guide rod 2 (73) away from the clamping block 2 (74) is provided with a hydraulic telescopic cylinder 5 (75), the fixed end of the hydraulic telescopic cylinder 5 (75) is fixedly connected to the inner wall of the guide groove 2 (72), and the output end of the hydraulic telescopic cylinder 5 (75) is fixedly connected to the guide rod 2 (73).

8. The high-efficiency hydraulic drawing and straightening machine according to claim 7, characterized in that: The straightening assembly (6) includes roller groups (76) linearly and evenly arranged along the length direction of the frame (1), and each group of roller groups (76) includes two groups of rollers (77) symmetrically arranged in the vertical direction and the horizontal direction based on the center line of the bar transmission.

9. The high-efficiency hydraulic drawing and straightening machine according to claim 8, characterized in that: The cutting assembly (41) includes two support rollers (83) arranged along the bar material transmission direction, a liftable cutting table (86) is provided between the two support rollers (83), a cutter (87) is liftably provided on the frame (1), and an encoder is fixedly connected to the roller shaft of a support roller (83) close to the straightening assembly (6).

10. The high-efficiency hydraulic drawing and straightening machine according to claim 9, characterized in that: The large diameter hole end of the tapered hole of the inlet cone (49) is arranged on a side close to the front clamping component (3), and the small diameter hole end of the tapered hole of the inlet cone (49) is in direct contact with the sizing sleeve (50); The large diameter hole end of the outlet cone (51) is arranged on a side close to the rear clamping assembly (5), and the small diameter hole end of the outlet cone (51) is in direct contact with the sizing sleeve (50); The inner diameter of the sizing sleeve (50) is smaller than the diameter of the rod material, and the diameters of the small-diameter ends of the tapered holes of the inlet cone (49) and the outlet cone (51) are consistent with the inner diameter of the sizing sleeve (50).

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