A seamless steel pipe processing and straightening device

Abstract

The present invention relates to the technical field of steel pipe processing, and specifically relates to a straightening device for seamless steel pipe processing, including a straightening mechanism, and a stabilizing mechanism and a straightness maintaining mechanism are respectively installed on the left and right sides of the straightening mechanism. By setting the stabilizing mechanism to limit and fix the unstraightened part of the seamless steel pipe, when the seamless steel pipe is spirally moved for straightening, the stabilizing block on the left moves to the right together with the left end of the seamless steel pipe. At the same time, the pressing rollers distributed in a triangle are used to press and fix the left end of the seamless steel pipe, and the triangular connection assembly is used to lock the triangular distributed roller frame I, improving the stability of the unstraightened part of the seamless steel pipe and preventing the seamless steel pipe from swinging. The present invention sets a straightness maintaining mechanism to press and maintain the straightness of the straightened seamless steel pipe. After the seamless steel pipe is straightened by the inclined rollers, the straightness maintaining rollers are used to maintain the straightness of the seamless steel pipe.

Description

Technical Field

[0001] The present invention relates to the technical field of steel pipe processing, and specifically relates to a straightening device for seamless steel pipe processing. Background Art

[0002] A seamless steel pipe is a steel pipe with no weld on its surface, which is formed by piercing a whole round steel. During the processing of seamless steel pipes, straightening is a very important step, which is used to correct the bending of steel pipes generated during manufacturing or transportation to ensure the quality of seamless steel pipes. Seamless steel pipes are generally straightened by an inclined roll straightening machine. During the straightening process, the seamless steel pipe rotates axially while moving forward, that is, it makes a spiral forward movement.

[0003] Since the seamless steel pipe before straightening has a certain degree of bending, during the rotation and forward movement of the seamless steel pipe, the part of the seamless steel pipe that has not entered the straightening machine will swing, which will affect the stability of the steel pipe straightening; secondly, when the right end of the seamless steel pipe comes out of the straightening machine, it is only supported by the support rolls. Since the left end of the seamless steel pipe is still being straightened in the straightening machine, the straightening machine will continuously exert a force on the seamless steel pipe. As the force is transmitted to the right along the seamless steel pipe, it will affect the stability of the right end of the seamless steel pipe, and then affect the overall straightening effect of the seamless steel pipe. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides a straightening device for seamless steel pipe processing, which includes a straightening mechanism, and a stability mechanism and a straightness maintaining mechanism are respectively installed on the left and right sides of the straightening mechanism.

[0005] The stability mechanism includes a sliding table installed on the left side of the straightening mechanism. Two symmetrically arranged stability blocks are installed on the top of the sliding table. The left stability block is slidably connected to the top of the sliding table in the left-right direction, and the right stability block is fixedly connected to the top of the sliding table. A left-right moving component for driving the left stability block to move left and right is installed on the sliding table. A guiding component for guiding the stability blocks is installed on the top of the sliding table. A through hole is formed in the middle of the stability block, and a number of roller frames I are evenly distributed circumferentially inside the through hole. A pressing roller is rotatably installed inside the roller frame I. The uppermost roller frame I is movably connected to the stability block, and the other roller frames I are fixedly connected to the inner wall of the through hole. A triangular connection component is connected between the number of roller frames I. An offset component for driving the uppermost roller frame I to move is installed on the stability block.

[0006] The straightness maintaining mechanism includes a support table installed on the right side of the straightening mechanism. A number of support rolls are rotatably installed on the top of the support table at equal intervals in the left-right direction. A straightness maintaining component for clamping and straightening the steel pipe and a locking component for locking the straightness maintaining component are installed on the top of the support table. A conveying component for driving the separation of the straightness maintaining component and the locking component is installed on the support table.

[0007] In a possible implementation manner, the straightening mechanism includes a processing table fixedly installed between the sliding table and the support table. A gantry is fixedly installed on the top of the processing table. A number of inclined rollers are rotatably installed on the top of the processing table and the bottom of the horizontal section of the gantry at equal intervals left and right. Two inclined rollers that are directly opposite to each other vertically and horizontally are distributed in a crossed manner. Two multi-axis motors are arranged left and right behind the processing table. A number of conveying shafts of the left multi-axis motor are respectively coaxially connected to a number of upper inclined rollers, and a number of output shafts of the right multi-axis motor are respectively coaxially connected to a number of lower inclined rollers.

[0008] In a possible implementation manner, the guiding assembly includes fixing plates fixedly connected to the top of the sliding table and symmetrically distributed left and right. A circular hole with the same size and coaxial with the through hole is opened in the middle of the fixing plate. Two stabilizing blocks are located between the two fixing plates on the left and right. Guide rods are fixedly connected between the two fixing plates on the left and right and symmetrically distributed front and back. The left stabilizing block is slidably installed left and right between the two guide rods at the front and back.

[0009] In a possible implementation manner, the number of the first roller frames is three, and the two lower first roller frames are symmetrically distributed front and back. The triangular connection assembly includes a triangular connection frame commonly installed on the sides of the three first roller frames away from the center of the sliding table. The two lower first roller frames are fixedly connected to the triangular connection frame, and the uppermost first roller frame is movably connected to the triangular connection frame. A clamping groove is opened on the top of the triangular connection frame near the uppermost first roller frame. A positioning block matched with the clamping groove is integrally formed on the side of the uppermost first roller frame close to the corresponding triangular connection assembly. A wedge block is slidably installed left and right inside the clamping groove above the positioning block. A first return spring is fixedly connected between the side of the wedge block away from the corresponding roller frame and the inner wall of the triangular connection frame. An unlocking component for driving the wedge block to unlock is also installed on the triangular connection frame.

[0010] In a possible implementation manner, the unlocking component includes a first gear rotatably installed inside the triangular connection frame and located below the wedge block. The first gear is meshed with a first rack on both the upper and lower sides. The end of the upper first rack close to the roller frame is fixedly connected to the bottom of the wedge block. A second return spring is fixedly connected between the end of the lower first rack close to the roller frame and the inner wall of the triangular connection frame, and the end away from the roller frame slides through to the outside of the triangular connection frame.

[0011] In a possible implementation manner, an activity slot for the uppermost roller frame 1 to move up, down, left, and right is provided at the top of the stabilizing block. The offset component includes an electric push rod fixedly connected to the side of the stabilizing block away from the center of the sliding table. The side of the telescopic section of the electric push rod close to the center of the sliding table extends into the activity slot and is fixedly connected to a U-shaped frame. A movable block is fixedly connected to the top of the uppermost roller frame 1. Two mutually parallel inclined slots are provided inside the movable block. One end of the inclined slot close to the center of the sliding table is inclined upward. Two vertically distributed cylinders are fixedly connected between the two parallel sections of the U-shaped frame. The cylinders are slidably installed inside the corresponding inclined slots. A stop piece located on the side of the movable block close to the center of the sliding table is fixedly connected between the front and rear side walls of the activity slot. A connecting block is fixedly connected to the bottom of the horizontal section of the U-shaped frame. A return spring 3 parallel to the inclined slot is fixedly connected between the movable block and the connecting block.

[0012] In a possible implementation manner, the unlocking drive component includes a housing fixedly connected between the front sides of the left and right fixing plates. A second gear is rotatably connected to one end of the housing close to the left fixing plate. Second racks are engaged with both the front and rear sides of the second gear. The second racks are slidably connected to the left and right of the housing. One end of the second rack close to the corresponding fixing plate slides through the outside of the housing and is fixedly connected to a movable rod. A pushing rod is fixedly connected to the end of the movable rod away from the housing. The pushing rod is located on the side of the first rack away from the center of the sliding table. A synchronous gear located above the housing is coaxially rotatably connected to the top of the second gear. A driving rack engaged with the synchronous gear is fixedly connected to the front side of the left stabilizing block.

[0013] In a possible implementation manner, the straightening component includes a plurality of roller frames 2 fixedly installed on the top of the support table and equally spaced left and right. The roller frames 2 and the support rollers are distributed alternately. Two roller frames 3 symmetrically distributed front and rear are provided at the top of the roller frame 2. The roller frames 2 and 3 have the same structure and straightening wheels are rotatably installed inside both of them. Wing plates 1 are fixedly connected to both the front and rear sides of the roller frame 2. A shaft rod is rotatably installed among a plurality of wing plates 1 located on the same side of the roller frame 2 and distributed left and right. A wing plate 2 is fixedly connected between the roller frame 3 and the corresponding shaft rod. A diagonal strut is hinged to the top of the wing plate 1. A sliding groove is provided on the wing plate 2. The top end of the diagonal strut is rotatably connected to a slider. The slider is slidably installed in the sliding groove. A docking block with a pin hole at the top is fixedly connected to the top of the roller frame 3.

[0014] In a possible implementation manner, the conveying assembly includes a movable plate slidably mounted up and down inside the support table. A plurality of roller frames four are fixedly connected to the top of the movable plate and are equally spaced left and right. A driving roller is rotatably mounted on the top of the roller frame four. The driving roller is located on the right side of the corresponding straightening assembly and is distributed alternately with the support rollers. A plurality of hydraulic telescopic rods are fixedly installed inside the support table and are equally spaced left and right at the bottom of the movable plate. The top of the telescopic shaft of the hydraulic telescopic rod is fixedly connected to the bottom of the movable plate. A plurality of support rods are fixedly installed on the top of the movable plate and are equally spaced left and right. A transmission rod is rotatably mounted on the roller frame four below the driving roller. Adjacent transmission rods are connected by a pulley assembly. The transmission rod and the corresponding driving roller are also connected by a pulley assembly. A driving motor is fixedly installed on the top of the movable plate. The driving motor is connected to the rightmost transmission rod by a pulley assembly. A plurality of transmission gears are fixedly installed on the shaft rod and are equally spaced left and right. Transmission frames are fixedly connected between the roller frame four and the movable plate and are symmetrically distributed front and back. A plurality of limiting blocks are fixedly connected inside the support table and are equally spaced left and right and symmetrically distributed front and back. The limiting blocks are slidably mounted up and down inside the corresponding transmission frame. A transmission rack is provided on the side of the transmission frame away from the movable plate. The transmission rack is engaged with the corresponding transmission gear.

[0015] In a possible implementation manner, the locking assembly includes a support frame fixedly installed on the top of the support rod and on the right side of the roller frame two. A pressing rod is fixedly connected to the top of the left side of the support frame. Symmetrically distributed front and back, a pin column is fixedly connected to the bottom of the end of the pressing rod away from the support frame. The pin column is inserted into the pin hole at the top of the docking block.

[0016] Advantages of the present invention: 1. The present invention limits and fixes the unstraightened part of the seamless steel pipe by setting a stabilizing mechanism. When the seamless steel pipe is straightened by spiral movement, the left stabilizing block moves to the right together with the left end of the seamless steel pipe. At the same time, the pressing rollers distributed in a triangle are used to press and fix the left end of the seamless steel pipe, and the triangular connection assembly is used to lock the triangularly distributed roller frame one, improving the stability of the unstraightened part of the seamless steel pipe and preventing the seamless steel pipe from swinging.

[0017] 2. The present invention unlocks the triangular connection assembly by setting an unlocking drive assembly. When the stabilizing block moves to the left end of the sliding table, the unlocking drive assembly can automatically drive the wedge block to release the lock on the uppermost roller frame one, facilitating the subsequent offset assembly to drive the roller frame one to move upward to facilitate the subsequent feeding of the seamless steel pipe.

[0018] 3. The present invention is provided with a straightness maintaining mechanism to press and maintain the straightness of the seamless steel pipe after straightening. After the seamless steel pipe is straightened by the skew rollers, it is then straightened by the straightness maintaining rollers, avoiding the stress generated during the straightening process from affecting the already straightened part of the seamless steel pipe, improving the straightening effect of the seamless steel pipe. After the seamless steel pipe is completely straightened, the straightness maintaining assembly simultaneously releases the pressing and straightness maintaining of the seamless steel pipe, avoiding the seamless steel pipe from being affected by local stress again and ensuring the straightening effect of the seamless steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic three-dimensional structure diagram of the present invention.

[0020] Figure 2 is a schematic three-dimensional structure diagram of the straightening mechanism of the present invention.

[0021] Figure 3 is a schematic three-dimensional structure diagram of the stability mechanism of the present invention.

[0022] Figure 4 is a schematic three-dimensional structure diagram of the stability block of the present invention.

[0023] Figure 5 is a front sectional view of the stability mechanism of the present invention.

[0024] Figure 6 is Figure 5 an enlarged view of part A in

[0025] Figure 7 is Figure 5 an enlarged view of part B in

[0026] Figure 8 is a partial sectional view of the unlocking drive assembly of the present invention.

[0027] Figure 9 is a schematic three-dimensional structure diagram of the straightness maintaining mechanism of the present invention.

[0028] Figure 10 is a schematic three-dimensional structure diagram of the straightness maintaining assembly of the present invention.

[0029] Figure 11 is a schematic three-dimensional structure diagram of the locking assembly of the present invention.

[0030] Figure 12 is a schematic three-dimensional structure diagram of the conveying assembly of the present invention.

[0031] Figure 13 is a right sectional view of the conveying assembly of the present invention.

[0032] In the figure: 1. Straightening mechanism; 11. Processing table; 12. Gantry; 13. Tapered roller; 14. Multi-axis motor; 2. Stabilizing mechanism; 21. Slide table; 22. Stabilizing block; 23. Left and right moving assembly; 24. Guiding assembly; 241. Fixed plate; 242. Guide rod; 25. Roller rack 1; 251. Positioning block; 26. Triangular connection assembly; 261. Triangular connection frame; 262. Card slot; 263. Wedge block; 264. Return spring 1; 265. Unlocking component; 2651. First gear; 2652. First rack; 2653. Return spring 2; 27. Offset assembly; 271. Electric push rod; 272. U-shaped frame; 2721. Cylinder; 273. Movable block; 2731. Inclined slot; 274. Flap; 275. Connecting block; 276. Return spring 3; 28. Unlocking drive assembly; 281. Housing; 282. Second gear; 283. Second rack; 284. Movable rod; 285. Pushing rod; 286. Synchronous gear; 287. Driving rack; 3. Straightening mechanism; 31. Support table; 311. Limit block; 32. Support roller; 33. Straightening component; 331. Roller rack 2; 332. Roller rack 3; 333. Wing plate 1; 334. Wing plate 2; 335. Shaft rod; 336. Diagonal brace; 337. Sliding groove; 338. Docking block; 34. Locking assembly; 341. Support frame; 342. Pressing rod; 343. Pin; 35. Conveying assembly; 351. Movable plate; 352. Roller rack 4; 353. Driving roller; 354. Hydraulic telescopic rod; 355. Support rod; 356. Transmission rod; 357. Driving motor; 358. Transmission gear; 359. Transmission frame. Detailed implementation manners

[0033] To make the above objects, features and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention with reference to the accompanying drawings. Many specific details are set forth in the following description to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described below, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific implementation manners disclosed below.

[0034] Please refer to Figure 1 , a seamless steel pipe processing and straightening device, including a straightening mechanism 1, and a stabilizing mechanism 2 and a straightening mechanism 3 are respectively installed on the left and right sides of the straightening mechanism 1.

[0035] Please refer to Figure 1 , Figure 3 , Figure 4 [[ID=*19]]And Figure 5, the stabilizing mechanism 2 includes a sliding table 21 installed on the left side of the straightening mechanism 1. Two symmetrically arranged stabilizing blocks 22 are installed on the top of the sliding table 21. Among them, the left stabilizing block 22 is slidably connected to the top of the sliding table 21 in the left-right direction, and the right stabilizing block 22 is fixedly connected to the top of the sliding table 21. A left-right moving assembly 23 for driving the left stabilizing block 22 to move left and right is installed on the sliding table 21. The left-right moving assembly 23 is a lead screw linear drive module. A guiding assembly 24 for guiding the stabilizing block 22 is installed on the top of the sliding table 21. A through hole is provided in the middle of the stabilizing block 22. A number of roller brackets one 25 are evenly distributed circumferentially inside the through hole. A pressing roller is rotatably installed inside the roller bracket one 25. The uppermost roller bracket one 25 is movably connected to the stabilizing block 22, and the other roller brackets one 25 are fixedly connected to the inner wall of the through hole. A triangular connecting assembly 26 is connected between a number of roller brackets one 25. An offset assembly 27 for driving the uppermost roller bracket one 25 to move is installed on the stabilizing block 22. It should be noted that the lead screw linear drive module is a conventional structure, and the lead screw linear drive module drives the left stabilizing block 22 to move horizontally to the right or left.

[0036] Please refer to Figure 1 and Figure 9 , the straightening and holding mechanism 3 includes a support table 31 installed on the right side of the straightening mechanism 1. A number of support rollers 32 are rotatably installed on the top of the support table 31 at equal intervals from left to right. A straightening assembly 33 for clamping and straightening the steel pipe and a locking assembly 34 for locking the straightening assembly 33 are installed on the top of the support table 31. A conveying assembly 35 for driving the straightening assembly 33 and the locking assembly 34 to separate is installed on the support table 31.

[0037] Please refer to Figure 1 and Figure 2 , the straightening mechanism 1 includes a processing table 11 fixedly installed between the sliding table 21 and the support table 31. A gantry 12 is fixedly installed on the top of the processing table 11. A number of inclined rollers 13 are rotatably installed on the top of the processing table 11 and the bottom of the horizontal section of the gantry 12 at equal intervals from left to right. Two vertically opposite inclined rollers 13 are crosswise distributed. Two multi-axis motors 14 are arranged left and right behind the processing table 11. A number of conveying shafts of the left multi-axis motor 14 are respectively coaxially connected to the upper inclined rollers 13, and a number of output shafts of the right multi-axis motor 14 are respectively coaxially connected to the lower inclined rollers 13. The inclined rollers 13 are dumbbell-shaped. It should be noted that the straightening mechanism 1 in the present invention is a conventional inclined roller type straightening machine.

[0038] During use, the seamless steel pipe passes through between two vertically corresponding inclined rollers 13. The inclined rollers 13 are pressed against the upper and lower sides of the seamless steel pipe. The corresponding inclined rollers 13 are driven to rotate by the multi-axis motor 14, so that the inclined rollers 13 drive the seamless steel pipe to move to the right and rotate continuously. The seamless steel pipe is straightened by the rolling cooperation of the upper and lower inclined rollers 13.

[0039] Please refer to Figure 1 and Figure 3 The guiding component 24 includes fixing plates 241 fixedly connected to the top of the sliding table 21 and symmetrically distributed left and right. A circular hole with the same size and coaxial with the through hole is formed in the middle of the fixing plate 241. The left and right stabilizing blocks 22 are located between the left and right fixing plates 241. Guiding rods 242 symmetrically distributed front and back are fixedly connected between the left and right fixing plates 241. The left stabilizing block 22 is slidably installed left and right between the front and back guiding rods 242, and the right stabilizing block 22 is fixedly connected between the front and back guiding rods 242.

[0040] During use, the seamless steel pipe is placed between the left and right stabilizing blocks 22, and the axis of the seamless steel pipe coincides with the axis of the through hole. The two ends of the seamless steel pipe are clamped by the pressing rollers in the first roller stand 25. The clamping degree of the left pressing roller on the seamless steel pipe is greater than that of the right pressing roller on the seamless steel pipe. Then, the left stabilizing block 22 is driven to move rightward by the left and right moving component 23, so that the right end of the seamless steel pipe enters between the upper and lower inclined rollers 13 for straightening. The pressing rollers clamp the unstraightened part of the seamless steel pipe to prevent the seamless steel pipe from swinging during the straightening process and improve the stability of the seamless steel pipe straightening.

[0041] Please refer to Figure 1 、 Figure 4 、 Figure 5 and Figure 6 The number of the first roller stands 25 is three, and the two lower first roller stands 25 are symmetrically distributed front and back. The triangular connection component 26 includes a triangular connection frame 261 commonly connected to the sides of the three first roller stands 25 far from the center of the sliding table 21. The two lower first roller stands 25 are fixedly connected to the triangular connection frame 261, and the uppermost first roller stand 25 is movably connected to the triangular connection frame 261. A clamping groove 262 is formed on the top of the triangular connection frame 261 near the uppermost first roller stand 25. A positioning block 251 matched with the clamping groove 262 is integrally formed on the side of the uppermost first roller stand 25 near the corresponding triangular connection component 26. A wedge block 263 located above the positioning block 251 is slidably installed left and right inside the clamping groove 262. A first return spring 264 is fixedly connected between the side of the wedge block 263 far from the corresponding first roller stand 25 and the inner wall of the triangular connection frame 261. An unlocking component 265 for driving the wedge block 263 to unlock is also installed on the triangular connection frame 261.

[0042] In the initial state, the uppermost first roller frame 25 is located above the triangular connecting frame 261 on the side far from the center of the sliding table 21. The seamless steel pipe is placed on the pressing rollers of the two lower first roller frames 25. Then, the offset component 27 first drives the uppermost first roller frame 25 to move above the two lower first roller frames 25, and then drives the uppermost first roller frame 25 to move downward to press the seamless steel pipe. When the uppermost pressing roller presses the seamless steel pipe, the positioning block 251 just inserts into the card slot 262. When the left and right moving component 23 drives the left stabilizing block 22 to move to the right, the wedge block 263 moves to the left, so that the wedge block 263 blocks the top of the positioning block 251, locking the first roller frame 25 and the triangular connecting frame 261 together. The three first roller frames 25 form a triangular structure, improving the stability of fixing the seamless steel pipe and preventing the positioning block 251 from disengaging from the card slot 262.

[0043] Please refer to Figure 5 and Figure 6 As shown in, the unlocking component 265 includes a first gear 2651 rotatably installed inside the triangular connecting frame 261 and located below the wedge block 263. Both the upper and lower sides of the first gear 2651 are engaged with a first rack 2652. One end of the upper first rack 2652 close to the first roller frame 25 is fixedly connected to the bottom of the wedge block 263. One end of the lower first rack 2652 close to the first roller frame 25 is fixedly connected with a second return spring 2653 between the inner wall of the triangular connecting frame 261, and the end far from the first roller frame 25 slides through to the outside of the triangular connecting frame 261.

[0044] When unlocking the locking of the wedge block 263 on the positioning block 251, by pushing the lower first rack 2652 to move in the direction close to the first roller frame 25, then the lower first rack 2652 drives the first gear 2651 to rotate, and then the first gear 2651 drives the upper first rack 2652 and the wedge block 263 to move in the direction away from the first roller frame 25, so that the wedge block 263 retracts into the inside of the triangular connecting frame 261 and no longer blocks the positioning block 251, thus unlocking the first roller frame 25.

[0045] Please refer to Figure 1 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7, an activity slot is provided at the top of the stable block 22 for the uppermost roller rack 25 to move up, down, left, and right. The offset assembly 27 includes an electric push rod 271 fixedly connected to one side of the stable block 22 away from the center of the sliding table 21. The telescopic section of the electric push rod 271 extends to the inside of the activity slot near the center of the sliding table 21 and is fixedly connected to a U-shaped frame 272. The top of the uppermost roller rack 25 is fixedly connected to an activity block 273. Two mutually parallel inclined slots 2731 are provided inside the activity block 273. One end of the inclined slot 2731 near the center of the sliding table 21 is inclined upward. Two vertically distributed cylinders 2721 are fixedly connected between the two parallel sections of the U-shaped frame 272. The cylinders 2721 are slidably installed inside the corresponding inclined slots 2731. A retaining piece 274 located on the side of the activity block 273 close to the center of the sliding table 21 is fixedly connected between the front and rear side walls of the activity slot. A connecting block 275 is fixedly connected to the bottom of the horizontal section of the U-shaped frame 272. A third return spring 276 parallel to the inclined slot 2731 is fixedly connected between the activity block 273 and the connecting block 275.

[0046] In the initial state, the uppermost roller rack 25 is located on the side away from the center of the sliding table 21 above the triangular connecting frame 261, and the cylinder 2721 is at the bottom end of the inclined slot 2731. After the seamless steel pipe is placed on the two lower pressing rollers, the electric push rod 271 is used to push the U-shaped frame 272 and the activity block 273 to move towards the center of the sliding table 21. When the activity block 273 contacts the retaining piece 274, the activity block 273 no longer moves towards the center of the sliding table 21. At this time, the uppermost roller rack 25 just moves directly above the two lower roller racks 25. After that, the electric push rod 271 pushes the U-shaped frame 272 to continue moving towards the center of the sliding table 21. At this time, the cylinder 2721 will slide along the inclined slot 2731, and at the same time, the third return spring 276 is compressed. The cylinder 2721 is used to push the activity block 273 and the roller rack 25 downward, so that the uppermost pressing roller presses on the top of the seamless steel pipe.

[0047] When the uppermost roller rack 25 needs to be moved away, the electric push rod 271 drives the U-shaped frame 272 to move away from the center of the sliding table 21. At this time, the cylinder 2721 moves in the reverse direction along the inclined slot 2731, and the resilience of the third return spring 276 is used to push the activity block 273 upward. When the uppermost pressing roller moves above the triangular connecting frame 261, the cylinder 2721 just moves to the bottom end of the inclined slot 2731. Then the electric push rod 271 drives the U-shaped frame 272 to continue moving away from the sliding table 21. At this time, the U-shaped frame 272 drives the activity block 273 to move away from the center of the sliding table 21 together, and the uppermost roller rack 25 is moved away from above the two lower roller racks 25 to avoid affecting the placement of the seamless steel pipe on the two lower roller racks 25.

[0048] Please refer to Figure 1 、Figure 3 , Figure 6 and Figure 8 , the unlocking drive assembly 28 includes a housing 281 fixedly connected between the front sides of the left and right fixing plates 241. One end of the interior of the housing 281 close to the left fixing plate 241 is rotatably connected to a second gear 282. Both the front and rear sides of the second gear 282 are engaged with second racks 283. The second racks 283 are slidably connected to the left and right of the housing 281. One end of the second rack 283 close to the corresponding fixing plate 241 slides through the outside of the housing 281 and is fixedly connected to a movable rod 284. One end of the movable rod 284 away from the housing 281 is fixedly connected to a pushing rod 285. The pushing rod 285 is located on the side of the first rack 2652 away from the center of the sliding table 21. The top of the second gear 282 is coaxially rotatably connected to a synchronizing gear 286 located above the housing 281. The front side of the left stabilizing block 22 is fixedly connected to a driving rack 287 engaged with the synchronizing gear 286.

[0049] When the left - right moving assembly 23 drives the left stabilizing block 22 to move rightward, the stabilizing block 22 drives the driving rack 287 to move rightward, drives the synchronizing gear 286 and the second gear 282 to rotate clockwise by means of the driving rack 287, and then the second gear 282 drives the front and rear second racks 283 to move away from each other outward. Then the second racks 283 push the movable rod 284 and the pushing rod 285 away from the first rack 2652. At this time, the resilience of the second return spring 2653 is used to push the first rack 2652 in the direction away from the center of the sliding table 21, and at the same time, the first return spring 264 pushes the wedge - shaped block 263 in the direction close to the center of the sliding table 21, so that the wedge - shaped block 263 presses the positioning block 251 to lock the first roller frame 25.

[0050] When the left - right moving assembly 23 drives the left stabilizing block 22 to move leftward to the left end of the sliding table 21, the driving rack 287 meshes with the synchronizing gear 286 and drives the synchronizing gear 286 and the second gear 282 to rotate counterclockwise. Then the second gear 282 drives the front and rear second racks 283 to move toward each other. At this time, the second racks 283 drive the movable rod 284 and the pushing rod 285 to move in the direction close to the center of the sliding table 21. Finally, the pushing rod 285 presses the first rack 2652, so that the wedge - shaped block 263 releases the lock on the positioning block 251.

[0051] Please refer to Figure 1 , Figure 2 , Figure 9 and Figure 10, the straightening assembly 33 includes a number of roller frames two 331 fixedly installed on the top of the support table 31 and evenly distributed left and right. The roller frames two 331 and the support rollers 32 are distributed alternately. At the top of the roller frames two 331, there are two roller frames three 332 symmetrically distributed front and back. The roller frames two 331 and the roller frames three 332 have the same structure and straightening wheels are rotatably installed inside both of them. On both the front and back sides of the straightening wheels and the roller frames two 331, there are fixed connection wing plates one 333. A number of wing plates one 333 distributed left and right on the same side of the roller frames two 331 are jointly rotatably installed with a shaft rod 335. Between the roller frames three 332 and the corresponding shaft rod 335, there is a fixed connection wing plate two 334. At the top of the wing plate one 333, there is a hinged stay bar 336. On the wing plate two 334, there is a sliding groove 337. The top end of the stay bar 336 is rotatably connected with a slider, and the slider is slidably installed in the sliding groove 337. At the top of the roller frames three 332, there is a docking block 338 with a pin hole at the top.

[0052] In the initial state, the two docking blocks 338 corresponding to the front and back are in contact with each other, and the locking assembly 34 locks the two docking blocks 338 corresponding to the front and back together. The three straightening rollers are in a circumferential distribution state on the vertical plane. The seamless steel pipe straightened by the inclined roller 13 moves to the right. The support roller 32 supports the straightened seamless steel pipe. Then the seamless steel pipe passes through between the three straightening rollers. The straightening rollers are used to limit, guide and straighten the seamless steel pipe, improve the straightening effect of the seamless steel pipe, and avoid the situation that the seamless steel pipe is bent again under the action of stress.

[0053] Please refer to Figure 1 , Figure 9 , Figure 10 , Figure 11 , Figure 12 and Figure 13, the conveying assembly 35 includes a movable plate 351 slidably mounted up and down inside the support table 31. A plurality of roller frames four 352 are fixedly connected to the top of the movable plate 351 at equal intervals left and right. A driving roller 353 is rotatably mounted on the top of the roller frame four 352. The driving roller 353 is located on the right side of the corresponding straightening assembly 33 and is distributed alternately with the support roller 32. A plurality of hydraulic telescopic rods 354 are fixedly installed inside the support table 31 at equal intervals left and right and are located at the bottom of the movable plate 351. The top of the telescopic shaft of the hydraulic telescopic rod 354 is fixedly connected to the bottom of the movable plate 351. A plurality of support rods 355 are fixedly installed on the top of the movable plate 351 at equal intervals left and right. A transmission rod 356 is rotatably mounted on the roller frame four 352 below the driving roller 353. Adjacent transmission rods 356 are connected by a pulley assembly. The transmission rod 356 and the corresponding driving roller 353 are also connected by a pulley assembly. A driving motor 357 is fixedly installed on the top of the movable plate 351. The driving motor 357 is connected to the rightmost transmission rod 356 by a pulley assembly. A plurality of transmission gears 358 are also fixedly installed on the shaft rod 335 at equal intervals left and right. Transmission frames 359 are fixedly connected between the roller frame four 352 and the movable plate 351 in a front-back symmetric distribution. A plurality of limiting blocks 311 are fixedly connected inside the support table 31 at equal intervals left and right and in a front-back symmetric distribution. The limiting blocks 311 are slidably mounted up and down inside the corresponding transmission frame 359. A transmission rack is provided on the side of the transmission frame 359 away from the movable plate 351. The transmission rack is engaged with the corresponding transmission gear 358.

[0054] Please refer to Figure 1 , Figure 9 , Figure 11 , Figure 12 and Figure 13 , the locking assembly 34 includes a support frame 341 fixedly installed on the top of the support rod 355 and on the right side of the roller frame two 331. A pressing rod 342 is fixedly connected to the top of the left side of the support frame 341. The bottom of the end of the pressing rod 342 away from the support frame 341 is fixedly connected with pin posts 343 distributed symmetrically front and back. The pin posts 343 are inserted into the pin holes at the top of the docking block 338.

[0055] In the initial state, the driving roller 353 is located below the supporting roller 32, the transmission frame 359 is located below the transmission gear 358, and the pin 343 is inserted into the pin hole at the top of the docking block 338, locking the two corresponding docking blocks 338 together. When the seamless steel pipe moves to the right under the support of the supporting roller 32, the seamless steel pipe straightened by the straightening roller passes through the middle of the support frame 341, and the seamless steel pipe completely leaves the inclined roller 13 and stays on the supporting roller 32. Then, the hydraulic telescopic rod 354 pushes the movable plate 351 to move upward, and then the movable plate 351 pushes the driving roller 353, the support rod 355, and the transmission frame 359 to move upward. The support rod 355 pushes the support frame 341 to move upward. Then, the support frame 341 drives the pressure rod 342 and the pin 343 to move upward, so that the pin 343 is separated from the pin hole at the top of the docking block 338. Then, the transmission frame 359 meshes with the transmission gear 358 and drives the transmission gear 358 and the shaft 335 to rotate. The rod 335 drives the wing plate 2 334 and the roller frame 332 to rotate away from the roller frame 2 331, so that the two straightening rollers above are separated and no longer interfere with the seamless steel pipe. At the same time, the straightening of the seamless steel pipe is released to prevent the seamless steel pipe from being affected by local stress. During the rotation of the wing plate 2 334, the slider slides along the sliding groove 337, so that the diagonal support rod 336 supports the wing plate 2 334. When the driving roller 353 contacts the bottom of the supporting steel pipe, the bottom of the transmission frame 359 conflicts with the bottom of the limit block 311, and the driving motor 357 drives the transmission rod 356 to rotate, and then the transmission rod 356 drives the corresponding driving roller 353 to rotate, so that the driving roller 353 sends the straightened seamless steel pipe to the right.

[0056] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed or detachable connections, integral or sliding connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0057] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A seamless steel pipe processing and straightening device, including a straightening mechanism, characterized in that: The left and right sides of the straightening mechanism are respectively installed with a stabilizing mechanism and a straightness-preserving mechanism; The stabilizing mechanism includes a sliding table installed on the left side of the straightening mechanism. On the top of the sliding table, there are two symmetrically arranged stabilizing blocks. The left stabilizing block is slidably connected to the top of the sliding table in the left-right direction, and the right stabilizing block is fixedly connected to the top of the sliding table. A left-right moving component for driving the left stabilizing block to move left and right is installed on the sliding table. A guiding component for guiding the stabilizing block is installed on the top of the sliding table. A through hole is provided in the middle of the stabilizing block. Inside the through hole, a number of roller frames I are evenly distributed circumferentially. A pressing roller is rotatably installed inside the roller frame I. The uppermost roller frame I is movably connected to the stabilizing block, and the other roller frames I are fixedly connected to the inner wall of the through hole. A triangular connecting component is connected between the number of roller frames I. An offset component for driving the uppermost roller frame I to move is installed on the stabilizing block; The straightness-preserving mechanism includes a support table installed on the right side of the straightening mechanism. On the top of the support table, a number of support rollers are rotatably installed at equal intervals in the left-right direction. A straightness-preserving component for clamping and straightening the steel pipe and a locking component for locking the straightness-preserving component are installed on the top of the support table. A conveying component for driving the separation of the straightness-preserving component and the locking component is installed on the support table; The triangular connecting component includes a triangular connecting frame commonly installed on the sides of the three roller frames I away from the center of the sliding table. A clamping groove is provided on the side of the triangular connecting frame near the uppermost roller frame I. Inside the clamping groove, a wedge block located above the positioning block is slidably installed in the left-right direction. An unlocking component for driving the wedge block to unlock is also installed on the triangular connecting frame; The unlocking component includes a first gear rotatably installed inside the triangular connecting frame and located below the wedge block. The upper and lower sides of the first gear are both engaged with a first rack. One end of the upper first rack close to the roller frame I is fixedly connected to the bottom of the wedge block. Between one end of the lower first rack close to the roller frame I and the inner wall of the triangular connecting frame, a second return spring is fixedly connected, and the other end away from the roller frame I slides through to the outside of the triangular connecting frame.

2. The seamless steel pipe processing and straightening device according to claim 1, wherein: The straightening mechanism includes a processing table fixedly installed between the sliding table and the support table. On the top of the processing table, a gantry is fixedly installed. On the top of the processing table and the bottom of the horizontal section of the gantry, a number of inclined rollers are rotatably installed at equal intervals in the left-right direction. The two inclined rollers directly opposite to each other in the up-down direction are distributed in a cross shape. Behind the processing table, there are two multi-axis motors distributed in the left-right direction. A number of conveying shafts of the left multi-axis motor are respectively coaxially connected to the upper number of inclined rollers. A number of output shafts of the right multi-axis motor are respectively coaxially connected to the lower number of inclined rollers.

3. A seamless steel pipe processing and straightening device according to claim 1, characterized in that: The guiding component includes fixing plates fixedly connected to the top of the sliding table and symmetrically distributed in the left-right direction. A circular hole with the same size and coaxial with the through hole is provided in the middle of the fixing plate. The left and right stabilizing blocks are located between the left and right fixing plates. Between the left and right fixing plates, guiding rods symmetrically distributed in the front-back direction are fixedly connected. The left stabilizing block is slidably installed between the front and rear guiding rods.

4. A seamless steel pipe processing and straightening device according to claim 3, characterized in that: The number of the first roller frames is three, and the two lower first roller frames are symmetrically distributed front and back. The two lower first roller frames are fixedly connected to the triangular connection frame, and the uppermost first roller frame is movably connected to the triangular connection frame. A positioning block matched with the clamping groove is integrally formed on one side of the uppermost first roller frame close to the corresponding triangular connection component. A first return spring is fixedly connected between the side of the wedge block away from the corresponding first roller frame and the inner wall of the triangular connection frame.

5. A seamless steel pipe processing and straightening device according to claim 1, characterized in that: An activity groove for the uppermost first roller frame to move up, down, left and right is formed at the top of the stabilizing block. The offset component includes an electric push rod fixedly connected to one side of the stabilizing block away from the center of the sliding table. The telescopic section of the electric push rod extends into the activity groove after extending to the side close to the center of the sliding table and is fixedly connected with a U-shaped frame. An activity block is fixedly connected to the top of the uppermost first roller frame. Two parallel inclined grooves are formed inside the activity block. One end of the inclined groove close to the center of the sliding table is inclined upward. Two vertically distributed cylinders are fixedly connected between the two parallel sections of the U-shaped frame. The cylinders are slidably installed inside the corresponding inclined grooves. A baffle is fixedly connected between the front and rear side walls of the activity groove and is located on the side of the activity block close to the center of the sliding table. A connection block is fixedly connected to the bottom of the horizontal section of the U-shaped frame. A third return spring parallel to the inclined groove is fixedly connected between the activity block and the connection block.

6. The straightening device for seamless steel pipe processing according to claim 1, characterized in that: The unlocking drive component includes a housing fixedly connected between the front sides of the left and right fixing plates. A second gear is rotatably connected to one end of the housing close to the left fixing plate. Second racks are engaged with both the front and rear sides of the second gear. The second racks are slidably connected to the left and right of the housing. One end of the second rack close to the corresponding fixing plate slides through the outside of the housing and is fixedly connected with an activity rod. A pushing rod is fixedly connected to the end of the activity rod away from the housing. The pushing rod is located on the side of the first rack away from the center of the sliding table. A synchronous gear located above the housing is coaxially rotatably connected to the top of the second gear. A drive rack engaged with the synchronous gear is fixedly connected to the front side of the left stabilizing block.

7. A seamless steel pipe processing and straightening device according to claim 1, characterized in that: The straightness maintaining component includes a plurality of second roller frames fixedly installed on the top of the support table and equally spaced left and right. The second roller frames and the support rollers are distributed alternately. Two third roller frames symmetrically distributed front and back are arranged on the top of the second roller frames. The second roller frames and the third roller frames have the same structure and straightness maintaining wheels are rotatably installed inside both of them. Wing plates one are fixedly connected to both the front and rear sides of the second roller frames. A shaft rod is rotatably installed among the plurality of wing plates one located on the same side of the second roller frames and distributed left and right. A wing plate two is fixedly connected between the third roller frame and the corresponding shaft rod. A diagonal strut is hinged to the top of the wing plate one. A sliding groove is formed on the wing plate two. The top end of the diagonal strut is rotatably connected with a slider. The slider is slidably installed in the sliding groove. A docking block with a pin hole on the top is fixedly connected to the top of the third roller frame.

8. A seamless steel pipe processing and straightening device according to claim 7, characterized in that: The conveying assembly includes a movable plate slidably mounted up and down inside the support table. A plurality of roller frames four are fixedly connected to the top of the movable plate and are equally spaced left and right. A driving roller is rotatably mounted on the top of the roller frame four. The driving roller is located on the right side of the corresponding straightening assembly and is spaced apart from the support roller. A plurality of hydraulic telescopic rods are fixedly installed inside the support table and are equally spaced left and right at the bottom of the movable plate. The top of the telescopic shaft of the hydraulic telescopic rod is fixedly connected to the bottom of the movable plate. A plurality of support rods are fixedly installed on the top of the movable plate and are equally spaced left and right. A transmission rod is rotatably mounted on the roller frame four below the driving roller. Adjacent transmission rods are connected by a pulley assembly. The transmission rod and the corresponding driving roller are also connected by a pulley assembly. A driving motor is fixedly installed on the top of the movable plate. The driving motor is connected to the rightmost transmission rod by a pulley assembly. A plurality of transmission gears are also fixedly installed on the shaft rod and are equally spaced left and right. Transmission frames are fixedly connected between the roller frame four and the movable plate and are symmetrically distributed front and back. A plurality of limit blocks are fixedly connected inside the support table and are equally spaced left and right and symmetrically distributed front and back. The limit blocks are slidably mounted up and down inside the corresponding transmission frame. A transmission rack is provided on the side of the transmission frame away from the movable plate. The transmission rack is engaged with the corresponding transmission gear.

9. A seamless steel pipe processing and straightening device according to claim 8, characterized in that: The locking assembly includes a support frame fixedly installed on the top of the support rod and on the right side of the roller frame two. A pressing rod is fixedly connected to the top of the left side of the support frame. The bottom of the end of the pressing rod away from the support frame is fixedly connected with symmetrically distributed pins front and back. The pins are inserted into the pin holes at the top of the docking block.

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