A titanium alloy tube straightening device

Abstract

This invention relates to the field of pipe straightening technology, and more particularly to a titanium alloy pipe straightening device, comprising a base, a roller pitch adjustment module, an outer roller, an inner roller, and a drive unit. The base includes a base, with support blocks fixedly connected to both sides of the upper end face of the base. A control box is fixedly connected to the front side of the base. The roller pitch adjustment module is mounted on the upper side of the support blocks. The roller pitch adjustment module includes a fixed base frame, a movable base frame, a spring, a motor, a guide plate, and a limiting block. The fixed base frame includes a guide shell fixed to the upper side of a set of support blocks. A middle plate is fixedly connected to the upper side of the guide shell. In this invention, the roller pitch adjustment module, drive unit, inner roller, outer roller, and liquid delivery unit make the titanium alloy pipe straightening device simple to operate and easy to adjust, and can be quickly and conveniently applied to the straightening of titanium alloy pipes with different diameters and wall thicknesses.

Description

Technical Field

[0001] This invention relates to the field of pipe straightening technology, specifically to a titanium alloy pipe straightening device. Background Technology

[0002] Titanium alloy pipes are pipes made of titanium alloys and have excellent comprehensive properties, including low density, good fatigue strength and crack propagation resistance, excellent corrosion resistance, and good weldability. Titanium alloy pipes are widely used in many fields such as aerospace, petrochemicals, and nuclear thin-walled pipes. However, during the production process, most pipes inevitably experience bending due to internal stress generated during deformation processing. Once put into use, this can pose safety hazards, causing economic losses and casualties. Therefore, it is necessary to straighten the pipes to ensure that they meet the corresponding straightness requirements.

[0003] Currently, the straightening of titanium alloy tubes generally adopts straightening roller type straightening equipment. This type of equipment uses multi-roller straightening technology. Its core working principle is to use continuously arranged straightening rollers to bend the tube at three points. Through this repeated bending process, the residual curvature of the tube is gradually reduced, thereby achieving the straightening of the tube. However, when straightening titanium alloy tubes of different diameters, especially large-diameter thin-walled titanium alloy tubes, it is necessary to adjust parameters such as roller spacing, roller inclination angle, and straightening rollers to adjust roller diameter, which leads to a high degree of complexity in adjustment. In addition, due to the thin wall thickness, the existing straightening method that relies solely on external pressure is prone to deformation of thin-walled titanium alloy tubes. Therefore, in view of the above problems, a titanium alloy tube straightening device is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a titanium alloy tube straightening device to solve the problems of existing titanium alloy tube straightening devices being complex to adjust and difficult to use when handling titanium alloy tubes of different diameters, especially large-diameter thin-walled tubes, and the traditional external pressure method easily causing deformation of thin-walled tubes.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A titanium alloy tube straightening device includes a base, a roller pitch adjustment module, an outer roller, an inner roller, and a drive unit. The base includes a base with support blocks fixedly connected to both sides of its upper end face. A control box is fixedly connected to the front side of the base. The roller pitch adjustment module is mounted on the upper side of the support blocks. The roller pitch adjustment module includes a fixed base frame, a movable base frame, a spring, a motor, a guide plate, and a limiting block. The fixed base frame includes a guide shell fixed to the upper side of a set of support blocks. A middle plate is fixedly connected to the upper side of the guide shell. Guide seats are fixedly connected to both sides of the upper end face of the middle plate. Guide grooves penetrating the middle plate are opened on both the front and rear sides of the guide seats. A notch is opened on the right side of the right guide groove. The movable base frame includes a guide shell with a groove on the inner wall of the guide shell. A sliding connecting plate has a roller support 1 fixedly connected to the left side of its upper end face, and a pair of rotating supports fixedly connected to the right side of its upper end face. A roller support 2 is rotatably connected to the upper side of the rotating supports. Roller support 1, rotating supports, and roller support 2 are all sleeved on the outside of the guide seat, and all three are slidably connected to the guide groove. A motor is fixedly connected to the left end face of the guide seat on the left side. An outer roller rotatably connected to the guide seat is fixedly connected to the end of the output shaft of the motor. An inner roller located directly above the outer roller is rotatably connected between roller support 1 and roller support 2. A storage groove is provided on the lower inner wall of the guide shell. A spring located below the connecting plate is installed inside the storage groove. A drive unit is installed on the lower side of the roller gap adjustment module.

[0007] Preferably, the drive unit includes a tube shell fixed between the base and the guide shell. A piston is slidably connected to the inner side of the tube shell. A linkage rope is fixedly connected to the left side of the piston. The other end of the linkage rope passes through the guide shell, a spring, and is fixedly connected to the lower end face of the linkage plate. A connecting pipe located to the left of the piston is connected to the front side of the tube shell. A damping sleeve is fixedly connected to the hole on the right side of the tube shell. An adjusting rod is installed at the damping sleeve. The adjusting rod includes a linkage rod slidably connected to the damping sleeve. An adjustment lever is fixedly connected to the right end of the linkage rod. A finger block is fixedly connected to the upper side of the left end of the adjustment lever. A scale plate located above the finger block is fixedly connected to the front side of the tube shell. A contact button located inside the tube shell is fixedly connected to the left side of the linkage rod. An infusion unit is installed on the left side of the drive unit. The infusion unit includes a liquid tank fixed in a groove on the left side of the base. A transmission pipe is connected to the upper side of the liquid tank. The right end of the transmission pipe is connected to the connecting pipe. A bidirectional liquid pump and an electronically controlled valve are installed on the transmission pipe.

[0008] Preferably, a gap is provided between the outer roller and the inner roller, the right end of the inner roller is a telescopic structure of an elastic pin, the elastic pin of the inner roller is detachably connected to the second roller support, the notches are all provided on the right side of the second roller support, the upper part of the rotating support is provided with an elastic positioning block, the lower side of the second roller support is provided with a groove, and the elastic positioning blocks of the rotating support are all provided inside the grooves of the second roller support.

[0009] Preferably, a guide wheel is fixedly connected to the left side of the tube shell, the pulley groove of the guide wheel is in contact with the connecting rope, the scale marks of the scale plate are arranged from left to right, the right end face of the piston is aligned with the zero mark line on the left end of the scale plate, and the finger block and the contact button are aligned front to back.

[0010] Preferably, guide plates are fixedly connected to both the front and rear sides of the fixed base frame, and a pressure guide module is installed on the upper side of the roller gap adjustment module. The pressure guide module includes a pair of guide rail plates slidably connected to the guide plates. A linkage block is fixedly connected to the lower back surface of each set of guide rail plates. Limiting blocks located on the front and rear sides of each set of guide rail plates are fixedly connected to the left side of each guide plate. A pressure guide plate is fixedly connected between the set of guide rail plates. A heating plate is installed in the upper groove of each pressure guide plate. A storage cavity is opened on both the front and rear sides of the lower part of the pressure guide plate. A sliding opening is opened on the upper side of each storage cavity. The device is equipped with a positioning unit, which includes a pair of rotating plates rotatably connected to the storage cavity. The rotating plates are arranged symmetrically front and back. Rotary rollers are rotatably connected to the opposing end slots of the rotating plates. A linkage frame is slidably connected to the inner side of the sliding opening. The lower end of the linkage frame is slidably connected to the sliding groove of the rotating plate. An adjusting screw is threaded into the threaded hole of the linkage frame, and the lower end of the adjusting screw is rotatably connected to the pressure guide plate. An electric push rod is fixedly connected to the upper side of the hole of the guide plate, and the lower end of the drive rod of the electric push rod is fixedly connected to the linkage block. A quantitative locking part is installed on both the front and rear sides of the pressure guide module.

[0011] Preferably, the quantitative locking part includes a shell plate fixedly connected to the outer end face of the guide rail plate. An adjusting screw is rotatably connected to the inner side of the shell plate. A locking block located inside the shell plate is threadedly connected to the outer side of the adjusting screw. A scale strip is fixedly connected to the side of the shell plate away from the guide rail plate. A finger is fixedly connected to the side of the locking block away from the guide rail plate. A second contact button with the start end facing downward is installed in the hole of the locking block.

[0012] Preferably, the lower side of the pressure guide plate is an arc-shaped curved surface, the scale marks of the scale bar are arranged from top to bottom, the upper zero mark of the scale bar is at the same height as the vertex of the lower curved surface of the pressure guide plate, the upper end face of the limiting block is at the same height as the vertex of the outer roller, the limiting block is located below the locking block, the finger points towards the scale bar, the lower end face of the finger is on the same plane as the lower end face of the locking block, and the base has openings on both the front and rear sides, and the openings are located directly below the guide plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. In this invention, the structure including a roller gap adjustment module, a drive unit, an inner roller, an outer roller, and a liquid delivery unit allows the liquid delivery unit to supply and pump hydraulic oil into the drive unit. The drive unit itself can be set with a driving distance, thereby precisely driving the movable base of the roller gap adjustment module to adjust the gap between the inner and outer rollers. This allows the inner and outer rollers to properly clamp the wall of the titanium alloy tube. The rotation of the outer roller driven by the motor drives the titanium alloy tube and the inner roller to rotate. During rotation, the inner and outer rollers apply pressure to the titanium alloy tube, causing necessary local deformation. This method effectively corrects the bent parts in the tube. This operation not only ensures the straightening quality of the titanium alloy tube, but is also suitable for straightening large-diameter thin-walled titanium alloy tubes. It enables titanium alloy tubes of different diameters and wall thicknesses to be effectively straightened. The titanium alloy tube straightening device is simple to operate and easy to adjust. It can be quickly and conveniently applied to the straightening of titanium alloy tubes of different diameters and wall thicknesses. It solves the problems of complex adjustment and difficulty in mastering the existing titanium alloy tube straightening devices when dealing with titanium alloy tubes of different diameters, especially large-diameter thin-walled tubes, and the problem that the traditional external pressure method is prone to deformation of thin-walled tubes.

[0015] 2. In this invention, the pressure guiding module, quantitative positioning part, and outer roller are designed to limit the downward movement of the pressure guiding module by adjusting the quantitative positioning part. After the pressure guiding module moves downward, the distance between the vertex of the lower curved surface of the pressure guiding plate and the outer roller is equal to the diameter of the titanium alloy tube to be straightened. The pressure guiding module can perform three-point positioning of the titanium alloy tube and can micro-heat the titanium alloy tube, improving the straightening performance of the equipment. The actual operation process is simple and easy to learn. It can position titanium alloy tubes of different diameters and keep them in a horizontal position during the rotation of the straightening process, avoiding the problem of skewing of the titanium alloy tube during the straightening process, which would affect the straightening quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 For the present invention Figure 1 A schematic diagram of the structure viewed from below;

[0018] Figure 3 This is a schematic diagram of the structure of the base portion of the present invention;

[0019] Figure 4 This is a schematic diagram of the structure of the roller gap adjustment module of the present invention;

[0020] Figure 5 For the present invention Figure 4 A schematic diagram of the cross-sectional structure;

[0021] Figure 6 This is a cross-sectional view of the fixing frame of the present invention;

[0022] Figure 7 This is a schematic diagram of the structure of the movable base frame of the present invention;

[0023] Figure 8 For the present invention Figure 7 A partial diagram of the split structure;

[0024] Figure 9 This is a schematic diagram of the structure of the guide plate of the present invention;

[0025] Figure 10 This is a cross-sectional view of the inner roller of the present invention;

[0026] Figure 11 This is a cross-sectional view of the drive section of the present invention;

[0027] Figure 12 This is a schematic diagram of the structure of the adjusting rod of the present invention;

[0028] Figure 13 This is a schematic diagram of the structure of the pressure-conducting module of the present invention;

[0029] Figure 14 This is a bottom view of the structure at the pressure guide plate of the present invention;

[0030] Figure 15 This is a schematic diagram of the positioning part of the present invention;

[0031] Figure 16 This is a schematic diagram of the quantitative positioning part of the present invention;

[0032] Figure 17 This is a schematic diagram of the structure of the adjusting screw in this invention;

[0033] Figure 18 For the present invention Figure 1 A schematic diagram of the straightening process for the titanium alloy tube after the procedure.

[0034] Figure 19 For the present invention Figure 18 A schematic diagram of the structure at point A;

[0035] Figure 20 For the present invention Figure 18 A schematic diagram of the left-side view structure.

[0036] In the diagram: 1. Seat; 11. Base; 12. Gauge; 13. Support block; 14. Control box; 2. Roller pitch adjustment module; 21. Fixed base frame; 211. Middle plate; 212. Guide seat; 213. Guide groove; 214. Gauge; 215. Guide shell; 216. Storage groove; 22. Movable base frame; 221. Linkage plate; 222. Roller support one; 223. Rotary support component; 224. Roller support two; 23. Spring; 24. Motor; 25. Guide folding plate; 26. Limiting block; 3. Outer roller; 4. Inner roller; 5. Drive unit; 51. Tube shell; 52. Piston; 53. Linkage rope; 54. Guide wheel; 55. Connecting pipe; 56. Damping sleeve; 57. Adjusting rod Components; 571. Linking rod; 572. Adjusting folding bar; 573. Finger block; 58. Contact button one; 59. Scale plate; 6. Pressure guide module; 61. Pressure guide plate; 62. Heating plate; 63. Guide rail plate; 64. Linking block; 65. Storage cavity; 66. Slide port; 67. Positioning part; 671. Turning plate; 672. Turning roller; 673. Linking frame; 674. Adjusting screw; 7. Electric push rod; 8. Quantitative locking part; 81. Shell plate; 82. Adjusting screw; 83. Locking block; 84. Finger; 85. Contact button two; 86. Scale bar; 9. Infusion part; 91. Liquid tank; 92. Transmission pipe; 93. Two-way liquid pump; 94. Electric control valve. Detailed Implementation

[0037] Please see Figure 1-20 , the present invention provides a technical solution:

[0038] A titanium alloy tube straightening device includes a base 1, a roller pitch adjustment module 2, an outer roller 3, an inner roller 4, and a drive unit 5. The base 1 includes a base 11, with support blocks 13 fixedly connected to both the left and right sides of the upper end face of the base 11. A control box 14 is fixedly connected to the front side of the base 11. The roller pitch adjustment module 2 is installed on the upper side of the support blocks 13. The roller pitch adjustment module 2 includes a fixed base frame 21, a movable base frame 22, a spring 23, a motor 24, a guide plate 25, and a limiting block 26. The fixed base frame 21 includes a fixed... A guide shell 215 is fixed on the upper side of a set of support blocks 13. A middle plate 211 is fixedly connected to the upper side of the guide shell 215. Guide seats 212 are fixedly connected to both the left and right sides of the upper end face of the middle plate 211. Guide grooves 213 penetrating the middle plate 211 are opened on both the front and rear sides of the guide seats 212. A notch 214 is opened on the right side of the right guide groove 213. The movable base frame 22 includes a connecting plate 221 that is slidably connected to the inner wall of the guide shell 215. A roller support 222 is fixedly connected to the left side of the upper end face of the connecting plate 221. A pair of rotating support members 223 are fixedly connected to the right side of the upper end face of plate 221. A second roller support 224 is rotatably connected to the upper side of the rotating support members 223. The first roller support 222, the rotating support members 223, and the second roller support 224 are all sleeved on the outside of the guide seat 212, and the first roller support 222, the rotating support members 223, and the second roller support 224 are all slidably connected to the guide groove 213. A motor 24 is fixedly connected to the left end face of the left guide seat 212. An outer roller 3 that is rotatably connected to the guide seat 212 is fixedly connected to the end of the output shaft of the motor 24. An inner roller 4 located directly above the outer roller 3 is rotatably connected between roller support 1 222 and roller support 224. A storage groove 216 is provided on the lower inner wall of the guide shell 215. A spring 23 located below the connecting plate 221 is installed on the inner side of the storage groove 216. A drive unit 5 is installed on the lower side of the roller pitch adjustment module 2. The outer roller 3 can be rotated by the motor 24. The lower movable base 22 can be reset by the spring 23. The storage groove 216 can store the compressed spring 23.The drive unit 5 includes a tube shell 51 fixed between the base 11 and the guide shell 215. A piston 52 is slidably connected to the inner side of the tube shell 51. A linkage rope 53 is fixedly connected to the left side of the piston 52. The other end of the linkage rope 53 passes through the guide shell 215 and the spring 23 and is fixedly connected to the lower end face of the linkage plate 221. A connecting pipe 55 located to the left side of the piston 52 is connected to the front side of the tube shell 51. A damping sleeve 56 is fixedly connected to the hole on the right side of the tube shell 51. An adjusting rod 57 is installed at the damping sleeve 56. The adjusting rod 57 includes a linkage rod 571 slidably connected to the damping sleeve 56. An adjustment folding bar 572 is fixedly connected to the right end of the linkage rod 571. An adjustment folding bar 572 is fixedly connected to the upper side of the left end of the adjustment folding bar 572. The device includes a finger block 573, a scale plate 59 fixedly connected to the front side of the housing 51 above the finger block 573, a contact button 58 fixedly connected to the left side of the linkage rod 571 inside the housing 51, and an infusion unit 9 installed on the left side of the drive unit 5. The infusion unit 9 includes a liquid tank 91 fixed in the groove on the left side of the base 11, a transmission pipe 92 connected to the upper side of the liquid tank 91, and a connecting pipe 55 connected to the right end of the transmission pipe 92. A bidirectional liquid pump 93 and an electric control valve 94 are installed on the transmission pipe 92. This configuration allows the infusion unit 9 to supply and pump hydraulic oil into the drive unit 5, and the drive unit 5 itself can set the driving distance, thereby enabling precise adjustment of the movable base 22 of the roller gap adjustment module 2. The precise drive displacement is used to adjust the distance between the inner roller 4 and the outer roller 3. A gap is provided between the outer roller 3 and the inner roller 4, allowing a titanium alloy tube to be inserted between them. The right end of the inner roller 4 has a retractable structure with an elastic pin. The elastic pin of the inner roller 4 is detachably connected to the roller support 224, allowing the inner roller 4 to be separated from the roller support 224 as needed. Notches 214 are all located on the right side of the roller support 224, allowing it to rotate to the right. Elastic positioning blocks are provided on the upper part of the rotating support 223, and notches are provided on the lower side of the roller support 224. The elastic positioning blocks of the rotating support 223 are all located on the roller support 224. The inner side of the notch in support 224 allows for positioning of support 224, ensuring its vertical orientation. A guide wheel 54 is fixedly connected to the left side of the tube shell 51. The pulley groove of the guide wheel 54 engages with the connecting rope 53, providing stable guidance for its displacement. The scale markings on the scale plate 59 are arranged from left to right. The right end face of the piston 52 is aligned with the zero mark on the left end of the scale plate 59. The finger block 573 is aligned with the contact button 58, allowing the position of the contact button 58 to be determined. The scale plate 59 also facilitates adjustment of the contact button 58 by the operator.

[0039] like Figures 1-3 , Figure 5 , Figure 9 , Figures 13-17As shown, guide plates 25 are fixedly connected to both the front and rear sides of the fixed base frame 21. A pressure guide module 6 is installed on the upper side of the roller gap adjustment module 2. The pressure guide module 6 includes a pair of guide rail plates 63 that are slidably connected to the guide plates 25. A linkage block 64 is fixedly connected to the lower side of the back face of the set of guide rail plates 63. Limiting blocks 26 located on the front and rear sides of the set of guide rail plates 63 are fixedly connected to the left side of the guide plates 25. A pressure guide plate 61 is fixedly connected between the set of guide rail plates 63. A heating plate 62 is installed in the groove on the upper side of the pressure guide plate 61. A receiving plate is opened on both the front and rear sides of the lower part of the pressure guide plate 61. The upper side of the receiving cavity 65 is provided with a sliding opening 66. A positioning part 67 is installed at the pressure guide plate 61. The positioning part 67 includes a pair of rotating plates 671 that are rotatably connected to the receiving cavity 65. The set of rotating plates 671 are symmetrically arranged front and back. Rotating rollers 672 are rotatably connected to the rotating grooves at the opposite ends of the set of rotating plates 671. A linkage frame 673 is slidably connected to the inner side of the set of sliding openings 66. The lower end of the linkage frame 673 is slidably connected to the sliding groove of the rotating plate 671. An adjusting screw 674 is threaded into the threaded hole of the linkage frame 673. The lower end of the adjusting screw 674 is connected to the pressure guide plate 61. The plate 61 is rotatably connected, and an electric push rod 7 is fixedly connected to the upper side of the hole in the guide plate 25. The lower end of the drive rod of the electric push rod 7 is fixedly connected to the linkage block 64. Quantitative locking parts 8 are installed on both the front and rear sides of the pressure guide module 6. The quantitative locking part 8 includes a shell plate 81 fixedly connected to the outer end face of the guide plate 63. An adjusting screw 82 is rotatably connected to the inner side of the shell plate 81. A locking block 83 located inside the shell plate 81 is threadedly connected to the outer side of the adjusting screw 82. A scale strip 86 is fixedly connected to the side of the shell plate 81 away from the guide plate 63. The locking block 83 is located away from the guide plate 63. One side is fixedly connected with a finger 84, and the hole of the locking block 83 is equipped with a contact button 85 with the start end facing down. Through this setting, the quantitative locking part 8 can be adjusted to limit the distance that the pressure guide module 6 can move down. After the pressure guide module 6 moves down, the distance between the vertex of the lower curved surface of the pressure guide plate 61 and the outer roller 3 is equal to the diameter of the titanium alloy tube to be straightened. The pressure guide module 6 can perform three-point positioning of the titanium alloy tube. The actual operation process is simple and easy to use. It can position titanium alloy tubes of different diameters and keep them in a horizontal position during the rotation of the straightening process.The lower side of the pressure guide plate 61 is an arc-shaped curved surface. The scale marks on the scale bar 86 are arranged from top to bottom. The upper zero mark of the scale bar 86 is at the same height as the vertex of the lower curved surface of the pressure guide plate 61. The upper end face of the limiting block 26 is at the same height as the vertex of the outer roller 3. The limiting block 26 is located below the locking block 83. The finger 84 points towards the scale bar 86. The lower end face of the finger 84 is on the same plane as the lower end face of the locking block 83. This arrangement allows the zero mark of the scale bar 86 to be used as the starting point for obtaining... Once the diameter of the titanium alloy tube is determined, the scale line corresponding to the diameter number pointed to by the finger 84 can be directly adjusted to allow the quantitative positioning part 8, in conjunction with the limiting block 26, to precisely limit the downward movement distance of the pressure guiding module 6. Thus, after the pressure guiding module 6 moves downward, the distance between the lower curved surface vertex of the pressure guiding plate 61 and the outer roller 3 is equal to the diameter of the titanium alloy tube to be straightened. The base 11 has openings 12 on both its front and rear sides, and these openings 12 are located directly below the guide rail plate 63. This arrangement ensures that the downward movement of the guide rail plate 63 is not affected by interference from the base 11.

[0040] Workflow: The straightening operation of the straightening device for titanium alloy tubes is as follows: Note 1: All electrical components of this equipment are externally powered and controlled via control box 14; Note 2: In subsequent descriptions, "material tube" is used as a substitute for "titanium alloy tube"; Note 3: The liquid tank 91 contains hydraulic oil, and the bidirectional liquid pump 93 has bidirectional pumping and suction functions. The bidirectional liquid pump 93 and the solenoid valve 94 operate in tandem; the solenoid valve 94 opens when the bidirectional liquid pump 93 starts and closes when it stops. Adjustment Operation: First, the wall thickness and diameter of the titanium alloy tube need to be accurately measured. Based on the measured wall thickness data, the drive unit 5 will be adjusted. Specifically, the internal dimensions of the drive unit 5 will be restricted. The displacement distance of piston 52 is used to indirectly control the downward movement distance of the movable base 22 of the subsequent roller gap adjustment module 2. In this way, we can adjust the downward movement distance of the subsequent inner roller 4, ultimately achieving precise control of the roller gap between the inner roller 4 and the outer roller 3. The goal is to make the gap between the inner roller 4 and the outer roller 3 after displacement equal to the wall thickness of the titanium alloy tube. The specific operation steps are as follows: First, we need to calculate the difference between the gap between the inner roller 4 and the outer roller 3 and the wall thickness of the titanium alloy tube. This difference is the adjustment amount we are talking about. Then, we can move the adjustment folding bar 572 to drive the finger block 573 to move, so that the finger block 573 points to the scale plate 59 and the adjustment. The corresponding scale line is measured. During this process, the contact button 58 will also move with the displacement of the adjusting rod 57 and align with the corresponding scale line. In this way, the subsequent piston 52 can only move to the set adjustment amount. Next, the quantitative locking part 8 needs to be adjusted according to the diameter of the titanium alloy tube to limit the downward movement distance of the pressure guide module 6. We hope that after the pressure guide module 6 moves down, the distance between the lower curved surface vertex of the pressure guide plate 61 and the outer roller 3 is equal to the diameter of the titanium alloy tube. The specific operation steps are as follows: The locking block 83 connected to it can be moved by rotating the adjusting screw 82. The displacement of the locking block 83 will drive the finger 84 and the contact Button 2 moves 85 until the index 84 points to the scale line corresponding to the diameter number on the scale bar 86. Then the adjustment of the locking block 83 can be stopped, so that the downward movement distance of the pressure guide module 6 is limited by the locking block 83 and the limiting block 26. In this way, after the pressure guide module 6 moves down, the distance between the lower curved surface vertex of the pressure guide plate 61 and the outer roller 3 is equal to the diameter of the titanium alloy tube, so as to position the titanium alloy tube in the future and prepare for the subsequent straightening work. Although there are many steps described above, it is simple to operate and easy to adjust. It can be quickly and conveniently applied to the straightening of titanium alloy tubes with different diameters and wall thicknesses. The adjustment operation is completed through the above steps.Installation Procedure: After the adjustment is complete, the titanium alloy tube needs to be installed. First, press the right end elastic pin of the inner roller 4 to move it to the left, thus disengaging the inner roller 4 from the roller support 224. At this point, the roller support 224 can be rotated to the right, exposing the insertion port between the right end of the outer roller 3 and the right end of the inner roller 4, no longer restricted by the roller support 224. Then, push the titanium alloy tube between the inner roller 4 and the outer roller 3, ensuring that the lowest point of the lower end face of the outer roller 3 contacts the titanium alloy tube, while the inner roller 4 is inside the titanium alloy tube. Once the titanium alloy tube is in place, reset the roller support 224, allowing the inner roller 4 to... The right end elastic pin is reconnected to the roller support 224; then, the bidirectional hydraulic pump 93 of the liquid delivery unit 9 is controlled by the control box 14. Hydraulic oil is delivered from the liquid tank 91 to the drive unit 5 through the transmission pipe 92, and enters the pipe shell 51 through the pipe 55. As the amount of hydraulic oil in the pipe shell 51 increases, the piston 52 is forced to move to the right until the piston 52 presses the contact button 58. At this time, the contact button 58 will stop the bidirectional hydraulic pump 93 from running and stop delivering hydraulic oil into the pipe shell 51. At the same time, the displacement of the piston 52 will pull the linkage rope 53, thereby driving the movable base frame 22 and the inner roller 4 to move downward. This ensures that the distance between the lowered inner roller 4 and outer roller 3 is equal to the wall thickness of the titanium alloy tube, achieving a tight fit between the inner and outer rollers 4 and the inner and outer walls of the titanium alloy tube. This prepares for subsequent roller straightening and completes the initial installation of the titanium alloy tube. Subsequently, the drive rod of the electric push rod 7 is extended by the control box 14, thereby pushing the linkage block 64 downward, which in turn moves the guide plate 63, the pressure guide plate 61, and the quantitative locking part 8 downward until the locking block 83 of the quantitative locking part 8 is in contact with the limiting block 26. At this time, the limiting block 26 will press the second contact button 85, which controls the electric push rod 7 to stop. To prevent elongation, the distance between the lower curved surface vertex of the pressure guide plate 61 and the outer roller 3 is equal to the diameter of the titanium alloy tube, so that the upper curved surface vertex of the titanium alloy tube is in contact with the lower curved surface vertex of the pressure guide plate 61, completing the initial positioning; next, the operator can adjust the linkage frame 673 to move down by rotating the adjusting screw 674, thereby pushing the rotating plates 671 on both sides to rotate simultaneously, so that the rotating roller 672, which moves with the rotating plate 671, is exactly located on the front and rear sides of the upper curved surface of the titanium alloy tube and in contact with it, completing the lateral positioning, through the lower clamping of the inner roller 4 and the outer roller 3 and the three-point positioning of the upper pressure guide module 6 (e.g.); Figure 20As shown in the diagram, the titanium alloy tube can be fully positioned to avoid skewing during subsequent straightening operations, which would affect the straightening quality. Although the steps described above are somewhat cumbersome, the actual operation is simple and easy to learn. It can position titanium alloy tubes of different diameters to prevent skewing during subsequent straightening rotation. Through the above steps, the installation operation of the titanium alloy tube is completed. Straightening operation: After completing the adjustment and installation operations, the next step is to start the motor 24 through the control box 14 to make the outer roller 3 start to rotate. As the outer roller 3 rotates, the titanium alloy tube that is in close contact with it will also rotate, driving the inner roller 4 located inside the tube to rotate together. During this process, the control box 14 further controls the heating plate 62 to work. The heating plate 62 transfers heat energy to the rotating titanium alloy tube through the pressure guide plate 61. The heating temperature of the heating plate 62 can be set by the operator according to the processing needs. The current process involves micro-heating the tube. The purpose of micro-heating is to slightly soften the surface of the titanium alloy tube, making it easier to straighten under the synergistic action of the inner roller 4 and the outer roller 3. The inner roller 4 and outer roller 3 apply pressure to the titanium alloy tube during rotation. This pressure, combined with the softening effect of heating, causes necessary local deformation in the titanium alloy tube. In this way, the bent parts in the tube can be effectively corrected. As the titanium alloy tube is continuously subjected to the combined action of roller pressure and heating during rotation, its bent parts will be gradually corrected. The entire straightening process is continuous; the titanium alloy tube is continuously straightened while rotating until the required straightness is achieved. This operation not only ensures the straightening quality of the titanium alloy tube but is also suitable for straightening large-diameter, thin-walled titanium alloy tubes, enabling effective straightening of titanium alloy tubes with different diameters and wall thicknesses. Through this series of meticulous operations, the straightening of the titanium alloy tube is finally completed.

[0041] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, and the existence of an infinite number of specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A titanium alloy tube straightening device, comprising a seat (1), a roller pitch adjustment module (2), an outer roller (3), an inner roller (4), and a drive unit (5), characterized in that: The seat (1) includes a base (11), and support blocks (13) are fixedly connected to the left and right sides of the upper end face of the base (11). A control box (14) is fixedly connected to the front side of the base (11). A roller pitch adjustment module (2) is installed on the upper side of the support block (13). The roller pitch adjustment module (2) includes a fixed base frame (21), a movable base frame (22), a spring (23), a motor (24), a guide plate (25), and a limiting block (26). The fixed base frame (21) includes a set of support blocks (13) fixed to it. The upper side of the guide shell (215) has a middle plate (211) fixedly connected to its upper side. Guide seats (212) are fixedly connected to both the left and right sides of the upper end face of the middle plate (211). Guide grooves (213) penetrating the middle plate (211) are provided on both the front and rear sides of the guide seats (212). A notch (214) is provided on the right side of each guide groove (213). The movable base frame (22) includes a connecting plate (221) that slides along the inner wall of the guide shell (215). The connecting plate (221)... A roller support 1 (222) is fixedly connected to the left side of the upper end face. A pair of rotating supports (223) are fixedly connected to the right side of the upper end face of the connecting plate (221). A roller support 2 (224) is rotatably connected to the upper side of the rotating supports (223). The roller support 1 (222), the rotating supports (223), and the roller support 2 (224) are all sleeved on the outside of the guide seat (212). The roller support 1 (222), the rotating supports (223), and the roller support 2 (224) are all slidably connected to the guide groove (213). The left end face of the guide seat (212) on the left side A motor (24) is fixedly connected. The output shaft of the motor (24) is fixedly connected to an outer roller (3) that is rotatably connected to a guide seat (212). An inner roller (4) located directly above the outer roller (3) is rotatably connected between the first roller support (222) and the second roller support (224). A storage groove (216) is provided on the lower inner wall of the guide shell (215). A spring (23) located below the connecting plate (221) is installed on the inner side of the storage groove (216). A drive unit (5) is installed on the lower side of the roller pitch adjustment module (2).

2. The titanium alloy tube straightening device according to claim 1, characterized in that: The drive unit (5) includes a tube shell (51) fixed between the base (11) and the guide shell (215). A piston (52) is slidably connected to the inner side of the tube shell (51). A linkage rope (53) is fixedly connected to the left side of the piston (52). The other end of the linkage rope (53) passes through the guide shell (215), the spring (23), and is fixedly connected to the lower end face of the linkage plate (221). A connecting pipe (55) located to the left side of the piston (52) is connected to the front side of the tube shell (51). A damping sleeve (56) is fixedly connected to the hole on the right side of the tube shell (51). An adjusting rod (57) is installed on the damping sleeve (56). The adjusting rod (57) includes a linkage rod (571) slidably connected to the damping sleeve (56). The right end of the 571 is fixedly connected to the adjustment folding strip (572), the upper left side of the adjustment folding strip (572) is fixedly connected to the finger block (573), the front side of the tube shell (51) is fixedly connected to the scale plate (59) located on the upper side of the finger block (573), the left side of the linkage rod (571) is fixedly connected to the contact button (58) located inside the tube shell (51), the left side of the drive unit (5) is equipped with the infusion unit (9), the infusion unit (9) includes the liquid tank (91) fixed in the groove on the left side of the base (11), the upper side of the liquid tank (91) is connected to the transmission pipe (92), the right end of the transmission pipe (92) is connected to the connecting pipe (55), and the transmission pipe (92) is equipped with a two-way liquid pump (93) and an electric control valve (94).

3. The titanium alloy tube straightening device according to claim 2, characterized in that: A gap is provided between the outer roller (3) and the inner roller (4). The right end of the inner roller (4) is a telescopic structure with an elastic pin. The elastic pin of the inner roller (4) is detachably connected to the roller support (224). The notches (214) are all located on the right side of the roller support (224). The upper part of the rotating support (223) is provided with an elastic positioning block. The lower side of the roller support (224) is provided with a notch. The elastic positioning blocks of the rotating support (223) are all located inside the notch of the roller support (224).

4. The titanium alloy tube straightening device according to claim 2, characterized in that: A guide wheel (54) is fixedly connected to the left side of the tube shell (51). The pulley groove of the guide wheel (54) is in contact with the connecting rope (53). The scale marks of the scale plate (59) are arranged from left to right. The right end face of the piston (52) is aligned with the zero scale line on the left end of the scale plate (59). The finger block (573) and the contact button (58) are aligned front to back.

5. A titanium alloy tube straightening device according to claim 2, characterized in that: The fixed base frame (21) is fixedly connected to the front and rear sides with guide plates (25). The roller gap adjustment module (2) is installed with a pressure guide module (6) on the upper side. The pressure guide module (6) includes a pair of guide rail plates (63) that are slidably connected to the guide plates (25). The lower side of the back surface of the set of guide rail plates (63) is fixedly connected with a linkage block (64). The left side of the guide plates (25) is fixedly connected with a limiting block (26) located on the front and rear sides of the set of guide rail plates (63). The set of guide rail plates (63) is fixedly connected with a pressure guide plate (61). The upper groove of the pressure guide plate (61) is installed with a heating plate (62). The lower front and rear sides of the pressure guide plate (61) are provided with a storage cavity (65). The upper side of the storage cavity (65) is provided with a sliding opening (66). The pressure guide plate (61) is provided with a positioning part. 67), the positioning part (67) includes a pair of rotating plates (671) rotatably connected to the storage cavity (65), and the set of rotating plates (671) are symmetrically arranged front and back. The rotating grooves at the opposite ends of the set of rotating plates (671) are rotatably connected to the rotating rollers (672). The inner side of the set of sliding mouths (66) is slidably connected to the linkage frame (673). The lower end of the linkage frame (673) is slidably connected to the sliding groove of the rotating plate (671). The threaded hole of the linkage frame (673) is threadedly connected to the adjusting screw (674), and the lower end of the adjusting screw (674) is rotatably connected to the pressure guide plate (61). The upper side of the hole of the guide plate (25) is fixedly connected to the electric push rod (7), and the lower end of the drive rod of the electric push rod (7) is fixedly connected to the linkage block (64). The front and rear sides of the pressure guide module (6) are equipped with quantitative positioning parts (8).

6. The titanium alloy tube straightening device according to claim 5, characterized in that: The quantitative positioning part (8) includes a shell plate (81) fixedly connected to the outer end face of the guide rail plate (63). An adjusting screw (82) is rotatably connected to the inner side of the shell plate (81). A positioning block (83) located inside the shell plate (81) is threadedly connected to the outer side of the adjusting screw (82). A scale strip (86) is fixedly connected to the side of the shell plate (81) away from the guide rail plate (63). A finger (84) is fixedly connected to the side of the positioning block (83) away from the guide rail plate (63). A second contact button (85) with the start end facing down is installed in the hole of the positioning block (83).

7. A titanium alloy tube straightening device according to claim 6, characterized in that: The lower side of the pressure guide plate (61) is set with an arc-shaped curved surface. The scale marks of the scale bar (86) are arranged from top to bottom. The upper zero scale of the scale bar (86) is set at the same height as the lower curved surface vertex of the pressure guide plate (61). The upper end face of the limiting block (26) is set at the same height as the vertex of the outer roller (3). The limiting block (26) is set below the locking block (83). The finger (84) is set towards the scale bar (86). The lower end face of the finger (84) is set on the same plane as the lower end face of the locking block (83). The base (11) has slots (12) on both the front and rear sides. The slots (12) are all set directly below the guide plate (63).

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