Nickel-titanium tube straightening device with positioning function

Abstract

The invention discloses a nickel-titanium pipe straightening device with a positioning function, and relates to the technical field of nickel-titanium pipe straightening, the nickel-titanium pipe straightening device comprises a workbench, a supporting frame is fixedly mounted at the bottom of the workbench, electric sliding rails are symmetrically mounted at the top of the workbench, and the nickel-titanium pipe straightening device further comprises a straightening assembly and a positioning assembly, the two electric sliding rails are symmetrically arranged on the two sides of the top of the workbench, the movable frame is fixedly installed on the top of an electric sliding table of the two electric sliding rails, a first electric push rod is fixedly installed on one side of the top of the movable frame, the movable end of the first electric push rod penetrates through the movable frame and is fixedly provided with a movable plate, and guide rods are symmetrically installed on the two sides of the top of the movable plate; according to the nickel-titanium pipe straightening device, the bending degree of a nickel-titanium pipe can be detected when the nickel-titanium pipe is straightened, the bent position of the pipe can be marked in the detection process, the bent position can be straightened conveniently in the follow-up process, and the straightening accuracy and practicability are improved.

Description

Technical Field

[0001] The invention relates to the technical field of nickel-titanium tube straightening, in particular to a nickel-titanium tube straightening device with a positioning function. Background Art

[0002] Titanium tubes are light in weight, high in strength and have excellent mechanical properties. They are widely used in heat exchange equipment, such as shell-and-tube heat exchangers, coil heat exchangers, serpentine heat exchangers, condensers, evaporators and transmission pipelines. Many nuclear power industries use titanium tubes as standard tubes for their units. Straightening is one of the important finishing processes to correct the shape defects of metal plastic processing products.

[0003] For example, in the large-diameter thin-walled nickel-titanium tube straightening device with publication number CN117161141A, when the two arc tubes are closed, the inner circumference fits the nickel-titanium tube, so that when the two arc tubes rotate, they can perform all-round straightening on the nickel-titanium tube, and the straightening effect is comprehensive, which effectively guarantees the quality of the nickel-titanium tube. When the two arc tubes are disassembled, it is convenient to clean the inner circumference of the arc tube, because when the arc tube is rubbing against the nickel-titanium tube in a high-temperature state during straightening, the inner circumference of the arc tube will absorb impurities generated by friction. If it is not cleaned for a long time, the inner circumference of the arc tube will be The unevenness will cause the arc tube to cause damage to the nickel-titanium tube. However, in actual use, if the nickel-titanium tube is long, it is not convenient to detect the bends of the tube during the straightening process, and it is not convenient to find the bends of the tube. In the process of straightening the tube, the bends of the tube cannot be marked. Deviations are likely to occur in the later straightening process, which will affect the accuracy of straightening. In addition, it is inconvenient to position tubes of different thicknesses during the straightening process, which will affect the accuracy of tube straightening. There are certain usage defects.

[0004] Therefore, we propose a nickel-titanium tube straightening device with a positioning function to solve the above-mentioned problems. Summary of the invention

[0005] The object of the present invention is to provide a nickel-titanium tube straightening device with a positioning function, so as to solve the problems raised in the above-mentioned background technology that it is inconvenient to detect and find the bends of the pipe during the straightening process, and the bends of the pipe cannot be marked during the straightening process, and deviations are likely to occur in the later straightening process, which will affect the accuracy of the straightening.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a nickel-titanium tube straightening device with a positioning function, comprising a workbench, a support frame is fixedly installed at the bottom of the workbench, and an electric slide rail is symmetrically installed on the top of the workbench;

[0007] Also includes:

[0008] The straightening component is arranged above the workbench, and the straightening component includes a moving frame;

[0009] The positioning components are symmetrically arranged on both sides of the top of the workbench;

[0010] The moving frame is fixedly installed on the tops of the electric sliders of two electric slide rails. One side of the top of the moving frame is fixedly installed with a first electric push rod, and the movable end of the first electric push rod passes through the moving frame and is fixedly installed with a movable plate. Both sides of the top of the movable plate are symmetrically installed with guide rods, and both guide rods are slidably connected to the moving frame. Moreover, a cylinder body is fixedly installed at the bottom of the movable plate;

[0011] The sliding rod is slidably connected inside the cylinder body. A telescopic spring is fixedly installed at the top of the sliding rod, and the top end of the telescopic spring is fixedly installed with a push block. A pressure sensor is fixedly installed at the top end inside the cylinder body. Moreover, the bottom of the sliding rod is hinged with a spherical part. Symmetrically installed below the outside of the sliding rod are L-shaped rods, and symmetrically installed below the outside of the cylinder body are support blocks, and the L-shaped rods are slidably connected to the support blocks;

[0012] Through grooves are symmetrically and penetratingly opened on the other two sides of the outside of the cylinder body. The cylinder body is symmetrically installed with mounting blocks above one side support block, and a rotating shaft is rotatably connected between the two mounting blocks. A torsion spring is arranged at the connection of the rotating shaft and one side mounting block. A short rod is fixedly installed below the outside of the rotating shaft, and a long rod is fixedly installed above the outside of the rotating shaft. Moreover, the ends of the short rod and the long rod away from the rotating shaft are both hinged with ball bearings.

[0013] Preferably, an L-shaped plate is fixedly installed on one side of the bottom of the movable plate. A movable plate is fixedly installed above the side of the L-shaped plate close to the cylinder body. An L-shaped frame is fixedly installed at the bottom of the movable plate. Two groups of positioning blocks are slidably connected to the outside of the L-shaped frame. Both positioning blocks are fixedly connected to the L-shaped plate. A pipe body is fixedly installed below the inside of the L-shaped plate, and a movable rod is slidably connected to the lower part inside the pipe body.

[0014] By adopting the above technical scheme, the movement of the L-shaped frame can drive the movable rod to move upward.

[0015] Preferably, a return spring is sleeved below the outside of the movable rod. The two ends of the return spring are respectively fixedly connected to the pipe body and the L-shaped plate. A piston is fixedly installed at the top of the movable rod. The piston is slidably connected to the pipe body. An air inlet is penetratingly opened above one side of the pipe body. A through hole is penetratingly opened at one side of the bottom of the pipe body. The other side of the pipe body is connected with a hose in a penetrating manner. First one-way valves are arranged inside both the air inlet and the connecting hose.

[0016] By adopting the above technical scheme, when the bent part of the pipeline rotates upward, the accommodation cavity can be pressurized.

[0017] Preferably, an accommodation cavity is formed above the spherical part inside the sliding rod, and an installation pipe penetrates and connects above the inside of the accommodation cavity on one side of the sliding rod. One end of the connecting hose away from the pipe body penetrates and connects with the installation pipe. Meanwhile, a communicating pipe penetrates between the accommodation cavity and the spherical part inside the sliding rod. A second one-way valve is arranged inside the communicating pipe. On the other side of the sliding rod, an adding pipe penetrates and connects above the inside of the accommodation cavity. One end of the adding pipe away from the sliding rod is externally threadedly connected with an end cap.

[0018] By adopting the above technical solution, the bending part of the pipeline can be marked.

[0019] Preferably, a hydraulic cylinder is installed on the central fixing rod at the top of the moving frame. The movable end of the hydraulic cylinder passes through the moving frame and is fixedly installed with an installation frame. The bottom of the installation frame is fixedly installed with an installation plate. Meanwhile, a moving rod is slidably connected inside the installation plate. The top of the moving rod is fixedly installed with a limiting plate. The bottom end of the moving rod is fixedly installed with a straightening plate. A baffle is fixedly installed below the outside of the moving rod.

[0020] By adopting the above technical solution, the pipeline can be straightened by the straightening plate.

[0021] Preferably, two groups of fixing frames are symmetrically installed on both sides of the bottom of the installation plate. An arc-shaped plate is rotatably connected below each group of two fixing frames. Connecting plates are symmetrically installed on both sides of the limiting plate. Rubber ropes are symmetrically installed at the bottom of the connecting plates. Through grooves are formed above the two connecting plates on the top of the installation plate. One end of the rubber rope away from the connecting plate is fixedly connected with the arc-shaped plate. Rubber pads are fixedly installed at the bottom of the straightening plate and the two arc-shaped plates.

[0022] By adopting the above technical solution, the movement of the moving plate can drive the arc-shaped plate to rotate.

[0023] Preferably, a fixing plate is fixedly installed below the inner side of the moving frame. Vertical plates are symmetrically installed on the top of the fixing plate. A bidirectional lead screw is rotatably connected on one side between the two vertical plates. A driving motor is fixedly installed on one side of one of the vertical plates. The output end of the driving motor passes through one of the vertical plates and is fixedly connected with the bidirectional lead screw. Movable seats are symmetrically threadedly connected to the outside of the bidirectional lead screw. A support rod is slidably connected to one side inside each of the two movable seats. The two ends of the support rod are respectively fixedly connected with the two vertical plates.

[0024] By adopting the above technical solution, the distance between the two support seats can be adjusted according to the bending range of the pipeline.

[0025] Preferably, U-shaped frames are fixedly installed at the tops of both movable seats, and a second electric push rod is fixedly installed at the inner top end of the U-shaped frame. The movable end of the second electric push rod passes through the U-shaped frame and is fixedly installed with a support seat. At the same time, limiting rods are symmetrically installed at the bottom of the support seat, and the limiting rods are slidably connected to the U-shaped frame.

[0026] By adopting the above technical solution, it is convenient to control the movement of the support seat.

[0027] Preferably, the positioning assembly includes two groups of vertical frames symmetrically installed on the top of the workbench. Above each group of two vertical frames, an adjusting frame is provided. Above the two vertical frames and inside the adjusting frame, rotating wheels are symmetrically and rotatably connected. At the same time, a rotating motor is fixedly installed above one side of one vertical frame. The output end of the rotating motor passes through one side of the vertical frame and is fixedly connected to the lower rotating wheel on one side. One ends of the two lower rotating wheels both pass through the other vertical frame through a rotating shaft and are fixedly installed with connecting belt pulleys. The two connecting belt pulleys are rotationally connected by a belt. At the same time, a support plate is fixedly installed on one side of the other vertical frame. An electric cylinder is fixedly installed on the top of the support plate. The movable end of the electric cylinder is fixedly connected to the adjusting frame. At the same time, positioning rods are symmetrically and slidably connected on both sides of the electric cylinder inside the support plate. The top ends of the two positioning rods are both fixedly connected to the adjusting frame.

[0028] By adopting the above technical solution, it is convenient to position the pipeline and convenient to rotate the pipeline.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows: For the nickel-titanium tube straightening device with a positioning function, a straightening assembly is provided above the workbench, so that when straightening the nickel-titanium tube, the bending degree of the nickel-titanium tube can be detected, and the bending part of the pipeline can be marked during the detection process, which is convenient for subsequent straightening of the bending part, improving the accuracy and practicability of straightening.

[0030] 1. A straightening component is arranged above the workbench. When straightening a nickel-titanium tube, the tube is positioned by a positioning component. Then, the first electric push rod can be activated to drive the cylinder body to move downward, so that the spherical part contacts the tube. Then, the cylinder body continues to move downward, causing the sliding rod to slide in the cylinder body, compressing the telescopic spring, and then applying pressure to the pressure sensor through the push block. During the movement of the sliding rod, the L-shaped rod is driven to slide on the support block. Then, the top end of the L-shaped rod fits with the ball on the short rod. At this time, the downward movement of the cylinder body is stopped. The pressure of the sliding rod can be known through the reading of the pressure sensor. During subsequent detection, the cylinder body is moved so that the reading of the pressure sensor is equal to this time. Then, the moving frame can be moved through the electric slide rail, so that the spherical part rotates on the top of the tube. If the tube is bent, the sliding rod will move upward or downward under the action of the telescopic spring. At this time, the reading of the pressure sensor will change. The bending range of the tube can be detected through the movement of the moving frame. Then, the moving frame is moved to the middle of the bent part of the tube. Then, the tube is rotated. When the bending angle is upward after the tube rotates, it will push the sliding rod upward. After the sliding rod moves upward, it can push the short rod to rotate, causing the rotating shaft to rotate and driving the torsion spring to deform. After the rotating shaft rotates, the long rod pushes the moving plate upward. The rotation angles of the short rod and the long rod are the same. The rotation range of the long rod is much larger than that of the short rod. If the bending angle of the tube is small, the moving plate will also move upward a certain distance. Then, the movable rod can be driven to move on the tube body through the L-shaped frame, causing the piston to move upward inside the tube body and compressing the return spring. At this time, the first one-way valve inside the air inlet is closed, and the first one-way valve inside the connecting hose is opened. Then, the air inside the tube body can be pushed into the connecting hose. Then, when the piston moves downward under the action of the return spring, the first one-way valve inside the air inlet is opened, and the first one-way valve inside the connecting hose is closed. The air can be pumped into the tube body. The air is pushed into the accommodating cavity through the connecting hose. Pigment or ink is added to the accommodating cavity through the adding tube. The adding tube is sealed by the end cover. After the air enters the accommodating cavity, the inside of the accommodating cavity can be pressurized, so that the pigment inside the accommodating cavity enters the communicating pipe through the second one-way valve, and the pigment can fall on the spherical part. The rotation speed of the tube should not be too fast, so that the pigment is smeared on the outside of the tube along with the rotation of the spherical part, and the pigment will be smeared only when the tube is bent upward. Then, the bent part of the tube can be marked. Subsequently, the tube can be straightened by applying pressure to the marked part. Through the straightening component, when straightening the nickel-titanium tube, the bending degree of the nickel-titanium tube can be detected, and the bent part of the tube can be marked during the detection process, which is convenient for subsequent straightening of the bent part and improves the accuracy and practicability of straightening;

[0031] 2. When straightening the pipeline, move the moving frame according to the bending position of the pipeline so that the straightening plate is located above the marking point. Then, according to the bending range, start the driving motor to drive the bidirectional lead screw to rotate, so that the two movable seats can approach or move away simultaneously, making the two supporting seats move to the non-bent parts on both sides of the bottom of the pipeline. Drive the supporting seats to move upward through the second electric push rod so that the supporting seats are in contact with the pipeline. Subsequently, during the subsequent straightening process, the pipeline can be supported to prevent the pipeline from bending when pressure is applied to it. Start the hydraulic cylinder to drive the mounting frame to move downward, so that the mounting plate moves downward, making the straightening plate contact the pipeline. Then, the mounting plate continues to move downward, causing the moving rod to slide on the mounting plate. Furthermore, the arc-shaped plate can be pulled to rotate on the fixed frame through the connecting plate and the rubber rope. Then, make the baffle fit with the mounting plate, and apply pressure to the bent part of the pipeline through the straightening plate for straightening. During the straightening process of the pipeline, pressure can be applied to the upper part of the outside of the pipeline through the two arc-shaped plates to clamp the pipeline, preventing the pipeline from being deformed and damaged due to the small contact range between the straightening plate and the pipeline. Moreover, the rubber rope has a certain elasticity, and the two arc-shaped plates can adapt to pipelines of different sizes, facilitating the straightening of the pipeline and improving the practicability.

[0032] 3. When positioning the pipeline, place the pipeline on the tops of the two lower rotating wheels. Then, start the electric cylinder to drive the adjusting frame to move downward, so that the two upper rotating wheels position the top of the pipeline. Different-sized pipelines can be positioned through the two groups of rotating wheels. Then, start the rotating motor to drive the rotating wheel on one side of the lower part to rotate. Under the action of the connecting belt wheels, the rotating wheel on the other side of the lower part rotates, thereby driving the pipeline to rotate, facilitating the detection of the bent part of the pipeline. After the pipeline rotates, the pipeline can be positioned through the self-locking of the rotating motor. Thus, the pipeline can be positioned and it is convenient to rotate the pipeline, improving the practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0034] Figure 2 is a schematic diagram of the structure of the straightening assembly of the present invention;

[0035] Figure 3 is a schematic diagram of a partial structure of the straightening assembly of the present invention;

[0036] Figure 4 is a schematic diagram of another perspective of a partial structure of the straightening assembly of the present invention;

[0037] Figure 5 is a schematic diagram of the sectional structure of the cylinder of the present invention;

[0038] Figure 6 is a schematic diagram of the sectional structure of the pipe body of the present invention;

[0039] Figure 7 For the present invention Figure 4 Schematic enlarged view of area A in the present invention;

[0040] Figure 8 Another partial structural schematic diagram of the straightening component of the present invention;

[0041] Figure 9 Schematic structural diagram of the positioning component of the present invention.

[0042] In the figure: 1, workbench; 101, support frame; 102, electric slide rail; 2, straightening component; 201, moving frame; 202, first electric push rod; 203, movable plate; 204, guide rod; 205, cylinder body; 206, sliding rod; 207, telescopic spring; 208, push block; 209, pressure sensor; 210, spherical part; 211, L-shaped rod; 212, support block; 213, through groove; 214, mounting block; 215, rotating shaft; 216, short rod; 217, long rod; 218, ball; 219, L-shaped plate; 220, moving plate; 221, L-shaped frame; 222, positioning block; 223, pipe body; 224, movable rod; 225, piston; 226, air inlet; 227, return spring; 228, connecting hose; 229, mounting pipe; 230, accommodating cavity; 231, communicating pipe; 232, adding pipe; 233, hydraulic cylinder; 234, mounting frame; 235, mounting plate; 236, straightening plate; 237, moving rod; 238, limiting plate; 239, fixing frame; 240, arc-shaped plate; 241, connecting plate; 242, rubber rope; 243, fixing plate; 244, vertical plate; 245, bidirectional lead screw; 246, driving motor; 247, movable seat; 248, support rod; 249, U-shaped frame; 250, second electric push rod; 251, support seat; 252, limiting rod; 3, positioning component; 301, vertical frame; 302, adjusting frame; 303, runner; 304, rotating motor; 305, connecting pulley; 306, support plate; 307, electric cylinder; 308, positioning rod. Detailed implementation manners

[0043] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0044] Please refer to Figures 1 - 9 , the present invention provides a technical solution: a nickel-titanium tube straightening device with a positioning function, including a workbench 1, a support frame 101 is fixedly installed at the bottom of the workbench 1, and electric slide rails 102 are symmetrically installed at the top of the workbench 1;

[0045] Further included are:

[0046] A straightening assembly 2, arranged above the workbench 1, the straightening assembly 2 includes a moving frame 201;

[0047] The moving frame 201 is fixedly installed on the tops of the electric sliders of two electric slide rails 102. On one side of the top of the moving frame 201, a first electric push rod 202 is fixedly installed, and the movable end of the first electric push rod 202 passes through the moving frame 201 and is fixedly installed with a movable plate 203. On both sides of the top of the movable plate 203, guide rods 204 are symmetrically installed. At the same time, both guide rods 204 are slidably connected to the moving frame 201. Moreover, a cylinder 205 is fixedly installed at the bottom of the movable plate 203;

[0048] A sliding rod 206 is slidably connected inside the cylinder 205. At the top of the sliding rod 206, a telescopic spring 207 is fixedly installed, and the top end of the telescopic spring 207 is fixedly installed with a push block 208. At the top end inside the cylinder 205, a pressure sensor 209 is fixedly installed. At the same time, a spherical member 210 is hinged to the bottom of the sliding rod 206. Moreover, L-shaped rods 211 are symmetrically installed below the outside of the sliding rod 206, and support blocks 212 are symmetrically installed below the outside of the cylinder 205. And the L-shaped rods 211 are slidably connected to the support blocks 212;

[0049] Through grooves 213 are symmetrically formed through the other two sides of the outside of the cylinder 205. Above one side support block 212 of the cylinder 205, mounting blocks 214 are symmetrically installed. A rotating shaft 215 is rotatably connected between the two mounting blocks 214. And a torsion spring is arranged at the connection between the rotating shaft 215 and one side mounting block 214. A short rod 216 is fixedly installed below the outside of the rotating shaft 215. At the same time, a long rod 217 is fixedly installed above the outside of the rotating shaft 215. And balls 218 are hinged to the ends of the short rod 216 and the long rod 217 away from the rotating shaft 215;

[0050] On one side of the bottom of the movable plate 203, an L-shaped plate 219 is fixedly installed. Above the side of the L-shaped plate 219 close to the cylinder 205, a movable plate 220 is fixedly installed. At the bottom of the movable plate 220, an L-shaped frame 221 is fixedly installed. At the same time, two groups of positioning blocks 222 are slidably connected to the outside of the L-shaped frame 221. And both positioning blocks 222 are fixedly connected to the L-shaped plate 219. Inside the lower part of the L-shaped plate 219, a pipe body 223 is fixedly installed. And a movable rod 224 is slidably connected to the lower part inside the pipe body 223;

[0051] A return spring 227 is sleeved below the outside of the movable rod 224, and both ends of the return spring 227 are fixedly connected to the pipe body 223 and the L-shaped plate 219 respectively. A piston 225 is fixedly installed at the top of the movable rod 224. At the same time, the piston 225 is slidably connected to the pipe body 223. An air inlet 226 is penetrated and opened above one side of the pipe body 223, and a through hole is penetrated and opened at one side of the bottom of the pipe body 223. The other side of the pipe body 223 is penetrated and connected with a hose 228. First one-way valves are arranged in both the air inlet 226 and the interior of the connecting hose 228;

[0052] An accommodation cavity 230 is opened above the spherical part 210 inside the sliding rod 206. An installation pipe 229 is penetrated and connected above the inside of the accommodation cavity 230 on one side of the sliding rod 206. One end of the connecting hose 228 away from the pipe body 223 is penetrated and connected with the installation pipe 229. A communication pipe 231 is penetrated and opened between the accommodation cavity 230 and the spherical part 210 inside the sliding rod 206. A second one-way valve is arranged inside the communication pipe 231. A filling pipe 232 is penetrated and connected above the inside of the accommodation cavity 230 on the other side of the sliding rod 206. An end cover is threadedly connected to the outside of one end of the filling pipe 232 away from the sliding rod 206.

[0053] Example 1: As Figures 1 - 7As shown in the figure, a straightening component 2 is arranged above the workbench 1. When straightening a nickel-titanium tube, the pipeline is positioned by a positioning component 3. Then, the first electric push rod 202 can be started to drive the cylinder body 205 to move downward, so that the spherical part 210 contacts the pipeline. Then, the cylinder body 205 continues to move downward, so that the sliding rod 206 slides in the cylinder body 205, compressing the telescopic spring 207. Then, a pressure is applied to the pressure sensor 209 through the push block 208. During the movement of the sliding rod 206, the L-shaped rod 211 is driven to slide on the support block 212. Then, the top end of the L-shaped rod 211 is attached to the ball 218 on the short rod 216. At this time, the downward movement of the cylinder body 205 is stopped. The pressure of the sliding rod 206 can be known through the reading of the pressure sensor 209. During subsequent detection, the cylinder body 205 is moved so that the reading of the pressure sensor 209 is equal to this time. Then, the moving frame 201 can be moved through the electric slide rail 102, so that the spherical part 210 rotates on the top of the pipeline. If the pipeline is bent, the sliding rod 206 will move upward or downward under the action of the telescopic spring 207. At this time, the reading of the pressure sensor 209 will change. The bending range of the pipeline can be detected through the movement of the moving frame 201. Then, the moving frame 201 is moved to the middle of the bent part of the pipeline. Then, the pipeline is rotated. When the bending angle is upward after the pipeline rotates, it will push the sliding rod 206 upward. After the sliding rod 206 moves upward, it can push the short rod 216 to rotate, so that the rotating shaft 215 rotates and drives the torsion spring to deform. After the rotating shaft 215 rotates, the long rod 217 pushes the moving plate 220 upward. The rotation angles of the short rod 216 and the long rod 217 are the same. The rotation range of the long rod 217 is much larger than that of the short rod 216. If the bending angle of the pipeline is small, the moving plate 220 will also move upward a certain distance. Then, the L-shaped frame 221 can drive the movable rod 224 to move on the pipe body 223, so that the piston 225 moves upward inside the pipe body 223, and the return spring 227 can be compressed. At this time, the first one-way valve inside the air inlet 226 is closed, and the first one-way valve inside the connecting hose 228 is opened. Then, the air inside the pipe body 223 can be pushed into the connecting hose 228. Then, when the piston 225 moves downward under the action of the return spring 227, the first one-way valve inside the air inlet 226 is opened, and the first one-way valve inside the connecting hose 228 is closed. The air can be pumped into the pipe body 223. The air is pushed into the accommodating cavity 230 through the connecting hose 228. Pigment or ink is added to the accommodating cavity 230 through the adding pipe 232. The adding pipe 232 is sealed through the end cover. After the air enters the accommodating cavity 230, the inside of the accommodating cavity 230 can be pressurized, so that the pigment inside the accommodating cavity 230 enters the communicating pipe 231 through the second one-way valve, so that the pigment can fall on the spherical part 210. The rotation speed of the pipeline should not be too fast, so that the pigment is smeared on the outside of the pipeline as the spherical part 210 rotates, and the pigment will be smeared only when the pipeline is bent upward.Furthermore, the bent portions of the pipeline can be marked, and then pressure can be applied at the marked portions to straighten the pipeline. By means of the straightening assembly 2, when straightening the nickel-titanium tube, the bending degree of the nickel-titanium tube can be detected, and during the detection process, the bent portions of the pipeline can be marked, which facilitates the subsequent straightening of the bent portions and improves the accuracy and practicability of straightening.

[0054] A hydraulic cylinder 233 is installed on the central fixing rod at the top of the moving frame 201, and the movable end of the hydraulic cylinder 233 passes through the moving frame 201 and is fixedly installed with a mounting frame 234. Moreover, a mounting plate 235 is fixedly installed at the bottom of the mounting frame 234. At the same time, a moving rod 237 is slidably connected inside the mounting plate 235. And a limiting plate 238 is fixedly installed at the top of the moving rod 237, and a straightening plate 236 is fixedly installed at the bottom end of the moving rod 237. And a baffle is fixedly installed below the outer side of the moving rod 237;

[0055] Two groups of fixing frames 239 are symmetrically installed on both sides of the bottom of the mounting plate 235. And an arc-shaped plate 240 is rotatably connected below each group of two fixing frames 239. And connecting plates 241 are symmetrically installed on both sides of the limiting plate 238. At the same time, rubber ropes 242 are symmetrically installed at the bottom of the connecting plates 241. Moreover, through grooves are formed through the top of the mounting plate 235 below the two connecting plates 241. And one end of the rubber rope 242 away from the connecting plate 241 is fixedly connected with the arc-shaped plate 240. And rubber pads are fixedly installed at the bottoms of the straightening plate 236 and the two arc-shaped plates 240;

[0056] A fixing plate 243 is fixedly installed below the inner side of the moving frame 201. And vertical plates 244 are symmetrically installed on the top of the fixing plate 243. And a bidirectional lead screw 245 is rotatably connected on one side between the two vertical plates 244. At the same time, a driving motor 246 is fixedly installed on one side of one vertical plate 244. And the output end of the driving motor 246 passes through one vertical plate 244 and is fixedly connected with the bidirectional lead screw 245. And movable seats 247 are symmetrically threadedly connected to the outside of the bidirectional lead screw 245. And a support rod 248 is slidably connected to one side inside the two movable seats 247. At the same time, the two ends of the support rod 248 are respectively fixedly connected with the two vertical plates 244;

[0057] U-shaped frames 249 are fixedly installed on the tops of the two movable seats 247. And a second electric push rod 250 is fixedly installed at the inner top end of the U-shaped frame 249. And the movable end of the second electric push rod 250 passes through the U-shaped frame 249 and is fixedly installed with a support seat 251. At the same time, limiting rods 252 are symmetrically installed at the bottom of the support seat 251. And the limiting rods 252 are slidably connected with the U-shaped frame 249.

[0058] Embodiment 2: As Figure 2 and Figure 8As shown in the figure, when straightening the pipeline, move the moving frame 201 according to the bending position of the pipeline so that the straightening plate 236 is located above the marking point. Then, according to the bending range, start the driving motor 246 to drive the bidirectional lead screw 245 to rotate, so that the two movable seats 247 can approach or move away from each other simultaneously, and the two support seats 251 move to the non-bent parts on both sides of the bottom of the pipeline. Drive the support seats 251 to move upward through the second electric push rod 250 so that the support seats 251 are in contact with the pipeline, so that the pipeline can be supported during subsequent straightening, avoiding the pipeline from bending when pressure is applied to the pipeline. Start the hydraulic cylinder 233 to drive the mounting frame 234 to move downward, so that the mounting plate 235 moves downward, so that the straightening plate 236 is in contact with the pipeline. Then, the mounting plate 235 continues to move downward, so that the moving rod 237 slides on the mounting plate 235. Furthermore, the arc plate 240 can be pulled to rotate on the fixed frame 239 through the connecting plate 241 and the rubber rope 242. Then, the baffle is attached to the mounting plate 235, and the pressure applied by the bending of the pipeline is straightened by the straightening plate 236. During the straightening process of the pipeline, pressure can be applied to the upper part of the outside of the pipeline through the two arc plates 240 to clamp the pipeline, avoiding deformation and damage of the pipeline caused by a small contact range between the straightening plate 236 and the pipeline. Moreover, the rubber rope 242 has a certain elasticity, and the two arc plates 240 can adapt to pipelines of different sizes, facilitating the straightening of the pipeline and improving the practicability.

[0059] The positioning assembly 3 is symmetrically arranged on both sides of the top of the workbench 1;

[0060] The positioning assembly 3 includes two groups of vertical frames 301 symmetrically installed on the top of the workbench 1. Above each group of two vertical frames 301, there is an adjustment frame 302. Above the two vertical frames 301 and inside the adjustment frame 302, there are symmetrically rotatably connected runners 303. At the same time, a rotation motor 304 is fixedly installed above one side of one of the vertical frames 301. The output end of the rotation motor 304 passes through one side of the vertical frame 301 and is fixedly connected to the lower runner 303 on one side. One end of each of the two lower runners 303 passes through the other side of the vertical frame 301 through a rotating shaft and is fixedly installed with a connecting pulley 305. The two connecting pulleys 305 are rotationally connected by a belt. At the same time, a support plate 306 is fixedly installed on one side of the other vertical frame 301. An electric cylinder 307 is fixedly installed on the top of the support plate 306. The movable end of the electric cylinder 307 is fixedly connected to the adjustment frame 302. Inside the support plate 306, positioning rods 308 are symmetrically slidably connected on both sides of the electric cylinder 307. At the same time, the tops of the two positioning rods 308 are fixedly connected to the adjustment frame 302.

[0061] Embodiment 3: As Figure 1 and Figure 9As shown, when positioning the pipe, place the pipe on the tops of the two lower rotating wheels 303. Then, the electric cylinder 307 can be started to drive the adjusting frame 302 to move downward, so that the two upper rotating wheels 303 position the top of the pipe. Different-sized pipes can be positioned by the two groups of rotating wheels 303. Then, the rotating motor 304 can be started to drive the lower rotating wheel 303 on one side to rotate. Under the action of the connecting pulley 305, the lower rotating wheel 303 on the other side rotates, thereby driving the pipe to rotate, which is convenient for detecting the bent part of the pipe. After the pipe rotates, the pipe can be positioned by the self-locking of the rotating motor 304. Therefore, the pipe can be positioned and rotated conveniently, improving the practicability.

[0062] Working principle: When using the nickel-titanium pipe straightening device with a positioning function, first, according to Figures 1 - 9As shown, when straightening the nickel-titanium tube, the pipeline is positioned by the positioning component 3. After that, the first electric push rod 202 can be started to drive the cylinder body 205 to move downward, so that the spherical part 210 contacts the pipeline. Then, the cylinder body 205 continues to move downward, so that the sliding rod 206 slides in the cylinder body 205, compressing the telescopic spring 207, and then applying pressure to the pressure sensor 209 through the push block 208. During the movement of the sliding rod 206, the L-shaped rod 211 is driven to slide on the support block 212. Then, the top end of the L-shaped rod 211 is fitted with the ball 218 on the short rod 216. At this time, the downward movement of the cylinder body 205 is stopped, and the pressure of the sliding rod 206 can be known through the reading of the pressure sensor 209. During subsequent detection, the cylinder body 205 is moved so that the reading of the pressure sensor 209 is equal to this time. Then, the moving frame 201 can be moved through the electric slide rail 102, so that the spherical part 210 rotates on the top of the pipeline. If the pipeline is bent, the sliding rod 206 will move up or down under the action of the telescopic spring 207, and the reading of the pressure sensor 209 will change at this time. The bending range of the pipeline can be detected through the movement of the moving frame 201. Then, the moving frame 201 is moved to the middle of the bent part of the pipeline. Then, the pipeline is rotated. When the bending angle is upward after the pipeline rotates, it will push the sliding rod 206 upward. After the sliding rod 206 moves upward, it can push the short rod 216 to rotate, so that the rotating shaft 215 rotates and drives the torsion spring to deform. After the rotating shaft 215 rotates, the long rod 217 pushes the moving plate 220 upward. The short rod 216 and the long rod 217 rotate at the same angle, and the rotation range of the long rod 217 is much larger than that of the short rod 216. If the bending angle of the pipeline is small, the moving plate 220 will also move upward a certain distance. Then, the L-shaped frame 221 can drive the movable rod 224 to move on the pipe body 223, so that the piston 225 moves upward inside the pipe body 223, and the return spring 227 can be compressed. At this time, the first one-way valve inside the air inlet 226 is closed, and the first one-way valve inside the connecting hose 228 is opened. Then, the air inside the pipe body 223 can be pushed into the connecting hose 228. When the piston 225 moves downward under the action of the return spring 227, the first one-way valve inside the air inlet 226 is opened, and the first one-way valve inside the connecting hose 228 is closed. The air can be pumped into the pipe body 223. The air is pushed into the accommodating cavity 230 through the connecting hose 228. Pigment or ink is added to the accommodating cavity 230 through the adding pipe 232. The adding pipe 232 is sealed through the end cover. After the air enters the accommodating cavity 230, the inside of the accommodating cavity 230 can be pressurized, so that the pigment inside the accommodating cavity 230 enters the communicating pipe 231 through the second one-way valve, and the pigment can fall on the spherical part 210. The rotation speed of the pipeline should not be too fast, so that the pigment is smeared on the outside of the pipeline along with the rotation of the spherical part 210, and the pigment will be smeared only when the pipeline is bent upward. Then, the bent part of the pipeline can be marked.Subsequent pressure can be applied at the marked position to straighten the pipeline;

[0063] When straightening the pipeline, move the moving frame 201 according to the bending position of the pipeline so that the straightening plate 236 is located above the marked point. Then, according to the bending range, start the driving motor 246 to drive the bidirectional lead screw 245 to rotate, so that the two movable seats 247 can approach or move away simultaneously, causing the two support seats 251 to move to the non-bent parts on both sides of the bottom of the pipeline. Drive the support seats 251 to move upward through the second electric push rod 250 so that the support seats 251 are in contact with the pipeline. Subsequently, during straightening, the pipeline can be supported to prevent the pipeline from bending when pressure is applied to the pipeline. Start the hydraulic cylinder 233 to drive the mounting frame 234 to move downward, causing the mounting plate 235 to move downward, so that the straightening plate 236 is in contact with the pipeline. Then, the mounting plate 235 continues to move downward, causing the moving rod 237 to slide on the mounting plate 235. Furthermore, the arc plate 240 can be pulled to rotate on the fixed frame 239 through the connecting plate 241 and the rubber rope 242. Then, the baffle is attached to the mounting plate 235, and pressure is applied to the bent part of the pipeline through the straightening plate 236 for straightening. During the straightening process of the pipeline, pressure can be applied to the upper part of the outside of the pipeline through the two arc plates 240 to clamp the pipeline, preventing the pipeline from being deformed and damaged due to the small contact range between the straightening plate 236 and the pipeline. Moreover, the rubber rope 242 has a certain elasticity, and the two arc plates 240 can adapt to pipelines of different sizes, facilitating the straightening of the pipeline. When positioning the pipeline, place the pipeline on the tops of the two lower rollers 303. Then, start the electric cylinder 307 to drive the adjusting frame 302 to move downward, so that the two upper rollers 303 position the top of the pipeline. Different-sized pipelines can be positioned through the two groups of rollers 303. Then, start the rotating motor 304 to drive the lower roller 303 on one side to rotate. Under the action of the connecting pulley 305, the lower roller 303 on the other side rotates, thereby driving the pipeline to rotate, facilitating the detection of the bent part of the pipeline. After the pipeline rotates, the pipeline can be positioned through the self-locking of the rotating motor 304, thereby positioning the pipeline and facilitating the rotation of the pipeline.

[0064] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0065] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A nickel-titanium tube straightening device with a positioning function, comprising a workbench (1), a support frame (101) is fixedly installed at the bottom of the workbench (1), and an electric slide rail (102) is symmetrically installed at the top of the workbench (1); It is characterized in that Also includes: A straightening assembly (2) is arranged above the workbench (1), and the straightening assembly (2) comprises a moving frame (201); Positioning components (3) are symmetrically arranged on both sides of the top of the workbench (1); A movable frame (201) is fixedly mounted on the top of the electric slide table of the two electric slide rails (102); a first electric push rod (202) is fixedly mounted on one side of the top of the movable frame (201); a movable end of the first electric push rod (202) passes through the movable frame (201) and is fixedly mounted with a movable plate (203); guide rods (204) are symmetrically mounted on both sides of the top of the movable plate (203); both guide rods (204) are slidably connected to the movable frame (201); and a cylinder (205) is fixedly mounted on the bottom of the movable plate (203); A sliding rod (206) is slidably connected inside the cylinder (205), a telescopic spring (207) is fixedly installed on the top of the sliding rod (206), a push block (208) is fixedly installed on the top of the telescopic spring (207), and a pressure sensor (209) is fixedly installed on the top of the cylinder (205), and a spherical piece (210) is hinged at the bottom of the sliding rod (206), and an L-shaped rod (211) is symmetrically installed on the outside of the sliding rod (206), and a support block (212) is symmetrically installed on the outside of the cylinder (205), and the L-shaped rod (211) is slidably connected to the support block (212); The through groove (213) is symmetrically penetrated and opened on the other two sides of the outside of the cylinder (205); the cylinder (205) is symmetrically installed with a mounting block (214) above the support block (212) on one side, and a rotating shaft (215) is rotatably connected between the two mounting blocks (214); a torsion spring is arranged at the connection between the rotating shaft (215) and the mounting block (214) on one side; a short rod (216) is fixedly installed at the lower part of the outside of the rotating shaft (215); a long rod (217) is fixedly installed at the upper part of the outside of the rotating shaft (215); and a ball bearing (218) is hinged at one end of the short rod (216) and the long rod (217) away from the rotating shaft (215).

2. A nickel-titanium tube straightening device with positioning function according to claim 1, characterized in that: An L-shaped plate (219) is fixedly installed on one side of the bottom of the movable plate (203), and a movable plate (220) is fixedly installed on the upper side of the L-shaped plate (219) close to the cylinder (205), and an L-shaped frame (221) is fixedly installed on the bottom of the movable plate (220), and two groups of positioning blocks (222) are slidably connected to the outside of the L-shaped frame (221), and the two positioning blocks (222) are fixedly connected to the L-shaped plate (219), and a tube body (223) is fixedly installed on the lower part of the inside of the L-shaped plate (219), and a movable rod (224) is slidably connected to the lower part of the inside of the tube body (223).

3. A nickel-titanium tube straightening device with positioning function according to claim 2, characterized in that: A return spring (227) is sleeved on the lower part of the outer part of the movable rod (224), and the two ends of the return spring (227) are fixedly connected to the tube body (223) and the L-shaped plate (219) respectively, and a piston (225) is fixedly installed on the top of the movable rod (224), and the piston (225) is slidably connected to the tube body (223), and an air inlet (226) is opened through the upper part of one side of the tube body (223), and a through hole is opened through the bottom side of the tube body (223), and a connecting hose (228) is passed through the other side of the tube body (223), and a first one-way valve is provided inside the air inlet (226) and the connecting hose (228).

4. A nickel-titanium tube straightening device with positioning function according to claim 3, characterized in that: An accommodating chamber (230) is provided inside the sliding rod (206) above the spherical member (210), and a mounting tube (229) is connected through one side of the sliding rod (206) located above the inside of the accommodating chamber (230), and the end of the connecting hose (228) away from the tube body (223) is connected through the mounting tube (229), and a connecting tube (231) is provided inside the sliding rod (206) between the accommodating chamber (230) and the spherical member (210), and a second one-way valve is provided inside the connecting tube (231), and an addition tube (232) is connected through the other side of the sliding rod (206) located above the inside of the accommodating chamber (230), and an end cap is externally threadedly connected to the end of the addition tube (232) away from the sliding rod (206).

5. The nickel-titanium tube straightening device with positioning function according to claim 1, characterized in that: A hydraulic cylinder (233) is installed on the top center fixed rod of the movable frame (201), and the movable end of the hydraulic cylinder (233) passes through the movable frame (201) and is fixedly installed with a mounting frame (234), and a mounting plate (235) is fixedly installed at the bottom of the mounting frame (234), and a movable rod (237) is slidably connected inside the mounting plate (235), and a limiting plate (238) is fixedly installed on the top of the movable rod (237), and a straightening plate (236) is fixedly installed on the bottom end of the movable rod (237), and a baffle is fixedly installed at the outer lower part of the movable rod (237).

6. A nickel-titanium tube straightening device with positioning function according to claim 5, characterized in that: Two groups of fixing frames (239) are symmetrically installed on both sides of the bottom of the mounting plate (235), and an arc-shaped plate (240) is rotatably connected between the bottom of each group of two fixing frames (239), and connecting plates (241) are symmetrically installed on both sides of the limiting plate (238), and rubber ropes (242) are symmetrically installed on the bottom of the connecting plates (241), and the top of the mounting plate (235) is located below the two connecting plates (241) and is penetrated by a through groove, and one end of the rubber rope (242) away from the connecting plate (241) is fixedly connected to the arc-shaped plate (240), and rubber pads are fixedly installed on the straightening plate (236) and the bottom of the two arc-shaped plates (240).

7. The nickel-titanium tube straightening device with positioning function according to claim 1, characterized in that: A fixed plate (243) is fixedly installed at the lower inner side of the movable frame (201), and a vertical plate (244) is symmetrically installed on the top of the fixed plate (243), and a bidirectional screw rod (245) is rotatably connected to one side between the two vertical plates (244), and a driving motor (246) is fixedly installed on one side of the vertical plate (244), and the output end of the driving motor (246) passes through one side of the vertical plate (244) and is fixedly connected to the bidirectional screw rod (245), and the outside of the bidirectional screw rod (245) is symmetrically threadedly connected to a movable seat (247), and the inner side of the two movable seats (247) is slidably connected to a support rod (248), and the two ends of the support rod (248) are respectively fixedly connected to the two vertical plates (244).

8. A nickel-titanium tube straightening device with positioning function according to claim 7, characterized in that: A U-shaped frame (249) is fixedly installed on the top of the two movable seats (247), and a second electric push rod (250) is fixedly installed on the inner top of the U-shaped frame (249), and the movable end of the second electric push rod (250) passes through the U-shaped frame (249) and is fixedly installed on a support seat (251), and a limit rod (252) is symmetrically installed on the bottom of the support seat (251), and the limit rod (252) is slidably connected to the U-shaped frame (249).

9. The nickel-titanium tube straightening device with positioning function according to claim 1, characterized in that: The positioning assembly (3) comprises two groups of vertical frames (301) symmetrically mounted on the top of the workbench (1), and an adjustment frame (302) is arranged above each group of two vertical frames (301), and a rotating wheel (303) is symmetrically rotatably connected between the two vertical frames (301) and the inside of the adjustment frame (302), and at the same time, a rotating motor (304) is fixedly mounted above one side of the vertical frames (301), and the output end of the rotating motor (304) passes through one side of the vertical frames (301) and is fixedly connected to the rotating wheel (303) on the lower side, and one end of the two rotating wheels (303) on the lower side passes through the other side through the rotating shaft. A connecting pulley (305) is fixedly installed on one side of the vertical frame (301), and the two connecting pulleys (305) are rotationally connected via a belt. At the same time, a support plate (306) is fixedly installed on one side of the vertical frame (301) on the other side, and an electric cylinder (307) is fixedly installed on the top of the support plate (306), and the movable end of the electric cylinder (307) is fixedly connected to the adjustment frame (302), and positioning rods (308) are symmetrically slidably connected on both sides of the electric cylinder (307) inside the support plate (306), and the top ends of the two positioning rods (308) are fixedly connected to the adjustment frame (302).

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