Intelligent automatic turning device for rubber lining metal pipeline

Abstract

The invention provides an intelligent automatic turning device for a rubber lining metal pipeline, and relates to the technical field of round pipe turning, the intelligent automatic turning device comprises a turning table, a base and a turning frame, a roller frame is fixedly mounted at the center of the top of the turning table and used for driving the pipeline to rotate, and the intelligent automatic turning device further comprises two positioning assemblies symmetrically mounted at the top of the turning table; the turning table is installed on the base, the connecting assembly is installed between the turning table and the base and used for driving the turning table to rotate, and the turning assembly is installed on the turning frame and has the adjusting and waste chip collecting functions. And the rotatable turning table design is adopted for half cutting, the overhanging pressure of a tool rest is relieved, the tool rest in the turning assembly has the functions of adjusting the feeding amount and collecting chippings, meanwhile, the turning table can obliquely unload when rotating by 90 degrees, and the chipping cleaning effect is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of round pipe turning, and particularly relates to an intelligent automatic turning device for rubber-lined metal pipes. Background Art

[0002] A rubber-lined pipe is a pipe with rubber or other anti-corrosion materials coated on its inner wall. Such pipes are usually used to transport corrosive liquids, gases or solid particles to extend the service life of the pipe and reduce maintenance costs. Rubber-lined pipes are widely used in the fields of chemical industry, petroleum, mining, metallurgy and environmental protection. Before pasting the rubber pad on the rubber-lined pipe, it is necessary to turn the inner circle of the metal outer pipe to remove impurities and rust stains.

[0003] Traditional turning devices mostly use a three-jaw chuck to clamp one end of the pipe and drive it to rotate, and use a tool rest that extends into the pipe to perform turning. However, when cutting a relatively long rubber-lined pipe, the long overhang is likely to cause the pipe and the tool rest to bend, and the pipe will move during rotation, affecting the cutting accuracy. Moreover, when using the overhanging tool rest to turn the inner circle of the pipe, the generated chips are difficult to collect and clean, and it is easy to damage the inner wall of the pipe and the tool tip. Summary of the Invention

[0004] The object of the present invention is to solve the disadvantages existing in the prior art that when cutting a relatively long rubber-lined pipe, the long overhang is likely to cause the pipe and the tool rest to bend, the pipe will move during rotation, affecting the cutting accuracy, and when using the overhanging tool rest to turn the inner circle of the pipe, the generated chips are difficult to collect and clean, and it is easy to damage the inner wall of the pipe and the tool tip.

[0005] To achieve the above object, the present invention adopts the following technical solution: An intelligent automatic turning device for rubber-lined metal pipes, including a turning table, a base and a turning frame. A roller frame is fixedly installed at the center of the top of the turning table for driving the pipe to rotate. A support shaft is fixedly installed at the bottom of the turning table. A ring-shaped guide seat is fixedly welded to the top of the base. A worm for driving the turning table to rotate is installed on the base. The turning frame is slidably installed in the base, and further includes: Two positioning components symmetrically installed on the top of the turning table; A connection component installed between the turning table and the base for driving the turning table to rotate; A turning component installed on the turning frame with functions of adjustment and chip collection.

[0006] In at least some embodiments, two guide rods are symmetrically installed on the support shaft. A guide groove for sliding and limiting the guide rods is formed in the inner circle of the ring-shaped guide seat. The guide groove is inclined forward so that the turning table is inclined during rotation and is in a horizontal state during turning.

[0007] In at least some embodiments, the positioning assembly includes a placement seat, a clamping ring, and a pressing plate. The placement seat is slidably mounted on the top of the turning table. The clamping ring is rotatably mounted in the placement seat. A first tooth groove is formed at one end of the clamping ring, and a first gear meshingly connected to the first tooth groove is provided in the placement seat to drive the clamping ring to rotate.

[0008] In at least some embodiments, a plurality of pressure sensors are fixedly installed at the mutually remote ends of the two turning tables. Telescopic rods are fixedly connected between the pressing plate and the plurality of pressure sensors. A first spring is sleeved on the telescopic rod. A plurality of first steel balls are rotatably mounted in an annular array at one end of the pressing plate away from the placement seat.

[0009] In at least some embodiments, two moving seats are symmetrically and slidably mounted at one end of the clamping ring. Clamping rods are arranged above and below the moving seats and the clamping rods are rotatably mounted on the clamping ring. Pressing wheels are rotatably mounted at one ends of the two clamping rods and the moving seat. A pulley is rotatably mounted at one end of the clamping rod away from the pressing wheel, and a tension sensor is rotatably mounted on the rotating shafts of the two pulleys. A second spring is fixedly connected between the two tension sensors. The moving seat is frustum-shaped, and the two pulleys are pressed against the slope surface of the moving seat under the elastic force of the second spring. A lead screw for driving the two moving seats to move closer or farther away at the same speed is installed at one end of the clamping ring.

[0010] In at least some embodiments, the connecting assembly includes a constant velocity joint and a ball head. The constant velocity joint is rotatably mounted on the base. A worm gear meshingly connected to the worm is fixedly mounted on the shaft of the constant velocity joint. The ball head is fixedly mounted at the bottom of the support shaft. The ball head is rotatably mounted in the constant velocity joint. A plurality of card slots are formed in an annular array on the ball head, and second steel balls are provided between the card slots and the constant velocity joint.

[0011] In at least some embodiments, the turning assembly includes a tool rest mounting rod and a collecting cylinder. The collecting cylinder is fixedly mounted on the turning frame, and the tool rest mounting rod is fixedly mounted at the other end of the collecting cylinder. A tool rest is rotatably mounted at one end of the tool rest mounting rod away from the collecting cylinder, and a turning tool bit is fixedly mounted on the tool rest. A threaded section is formed on the tool rest mounting rod, and an adjusting nut is threadedly sleeved on the threaded section. A collar is rotatably sleeved on the adjusting nut, and a connecting rod is rotatably mounted between the collar and the tool rest.

[0012] In at least some embodiments, second gears are rotatably mounted in an annular array at the outer end of the collecting cylinder. A driving ring and a collecting ring are rotatably sleeved on the collecting cylinder. The driving ring and the collecting ring are both meshingly connected to the second gears to form a reverse driving effect. Friction blocks are movably embedded in an annular array at the outer end of the driving ring. A plurality of chip collecting ports tangent to the inner circle of the collecting ring are formed in an annular array on the collecting ring. A plurality of chip inlet ports are formed on the inner wall of the collecting cylinder corresponding to the collecting ring.

[0013] In at least some embodiments, a return spring is fixedly installed between the friction block and the driving ring, and rounded corners are provided at both end faces of the friction block. A cutting blade is fixedly installed at the inner end of the chip collecting port.

[0014] In at least some embodiments, a diversion plate is rotatably installed at one end of the collecting cylinder close to the tool rest mounting rod. A third gear for driving the diversion plate to rotate is rotatably installed in the collecting cylinder. A conical collecting cavity is provided on one side of the collecting cylinder close to the turning frame. A plurality of twisted diversion plates are arranged in an annular array on the diversion plate to guide the chips into the collecting cavity.

[0015] Compared with the prior art, the advantages and positive effects of the present invention are as follows: In the present invention, by rotating the engaging ring in the driving and positioning assembly by 180 degrees, the metal pipe can be quickly clamped, which is convenient for loading and unloading. By driving the two placing seats to move away from each other until the abutting plate contacts the flange plates on both sides of the metal pipe, the problem that the metal pipe bends due to excessive overhang and causes crosstalk during rotation is avoided by using the two-side support method. And it neither affects the rotation of the metal pipe nor can horizontally limit the metal pipe, ensuring the stability of the positioning turning of the metal pipe.

[0016] In the present invention, by rotating the adjusting sleeve in the turning assembly to drive the tool rest to rotate, the purpose of adjusting the feed amount is achieved to adapt to different turning requirements. During turning, the metal pipe drives the driving ring in the turning assembly to rotate, and drives the collecting ring to rotate in the opposite direction to collect the metal chips through the chip collecting port, and the chips are thrown into the collecting cylinder through the chip inlet under the action of centrifugal force for collection. While turning, the metal chips are collected, and the efficiency is higher. At the same time, when collecting the metal chips, by using the rotation of the collecting ring, a cutting effect is formed between the chip collecting port and the chip inlet, and the longer metal chips are chopped by the cutting blade to prevent blockage.

[0017] In the present invention, the turning table is driven to rotate by the connecting assembly, and a rotatable turning table design is adopted for half-side cutting to reduce the overhang pressure of the tool rest. When the turning table rotates 90 degrees, it will tilt to unload materials, further improving the chip cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is an overall three-dimensional schematic diagram of an intelligent automatic turning device for a rubber-lined metal pipe proposed by the present invention; Figure 2 is a structural schematic diagram of the turning table in an intelligent automatic turning device for a rubber-lined metal pipe proposed by the present invention; Figure 3 is a structural schematic diagram of the positioning assembly in an intelligent automatic turning device for a rubber-lined metal pipe proposed by the present invention; Figure 4This is a schematic structural diagram of a placement seat in an intelligent automatic turning device for rubber-lined metal pipes according to the present invention; Figure 5 This is a schematic structural diagram of a clamping ring in an intelligent automatic turning device for rubber-lined metal pipes according to the present invention Figure 1 ; Figure 6 This is a schematic structural diagram of a clamping ring in an intelligent automatic turning device for rubber-lined metal pipes according to the present invention Figure 2 ; Figure 7 This is a schematic structural diagram of a base in an intelligent automatic turning device for rubber-lined metal pipes according to the present invention; Figure 8 This is a schematic structural diagram of a connection component in an intelligent automatic turning device for rubber-lined metal pipes according to the present invention; Figure 9 This is a schematic structural diagram of a turning frame in an intelligent automatic turning device for rubber-lined metal pipes according to the present invention; Figure 10 This is a schematic structural diagram of a turning component in an intelligent automatic turning device for rubber-lined metal pipes according to the present invention; Figure 11 This is a schematic structural diagram of a collection cylinder in an intelligent automatic turning device for rubber-lined metal pipes according to the present invention; Figure 12 This is a connection schematic diagram of a collection ring and a diversion plate in an intelligent automatic turning device for rubber-lined metal pipes according to the present invention.

[0019] Legend: 1. Turning table; 101. Roller frame; 102. Support shaft; 103. Guide rod; 2. Positioning component; 201. Placement seat; 202. Clamping ring; 203. Pressure sensor; 204. Bracing plate; 205. Expansion link; 206. First spring; 207. First steel ball; 208. First gear; 209. First tooth groove; 210. Lead screw; 211. Moving seat; 212. Clamping rod; 213. Tensile sensor; 214. Second spring; 3. Base; 301. Annular guide seat; 302. Guide groove; 303. Worm; 4. Connection component; 401. Constant velocity joint; 402. Ball head; 403. Second steel ball; 404. Worm gear; 5. Turning frame; 6. Turning assembly; 601. Tool rest mounting rod; 602. Tool rest; 603. Turning tool bit; 604. Adjusting screw sleeve; 605. Collar; 606. Connecting rod; 607. Collection cylinder; 608. Second gear; 609. Driving ring; 610. Friction block; 611. Collection ring; 612. Deflector plate; 613. Chip collection port; 614. Cutting blade; 615. Third gear; 616. Cleaning door. Detailed implementation mode

[0020] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described below with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0021] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the specific embodiments disclosed in the following specification.

[0022] Embodiment, according to Figures 1 - 12 An intelligent automatic turning device for a rubber-lined metal pipe provided by an embodiment of the present invention includes a turning table 1, a base 3 and a turning frame 5. A roller frame 101 is fixedly installed at the center of the top of the turning table 1 for driving the pipe to rotate. A support shaft 102 is fixedly installed at the bottom of the turning table 1. An annular guide seat 301 is fixedly welded to the top of the base 3. A worm 303 for driving the turning table 1 to rotate is installed on the base 3. The turning frame 5 is slidably installed in the base 3. A hydraulic rod for driving the turning frame 5 to move horizontally is installed in the base 3. The device further includes two positioning components 2 symmetrically installed on the top of the turning table 1, a connecting component 4 installed between the turning table 1 and the base 3 for driving the turning table 1 to rotate, and a turning component 6 installed on the turning frame 5 with functions of adjustment and waste chip collection.

[0023] Such as Figure 1 , Figure 2 , Figure 3 And Figure 5As shown in the figure, the positioning component 2 includes a placement seat 201, a clamping ring 202 and a pressing plate 204. The placement seat 201 is slidably mounted on the top of the turning table 1. A hydraulic rod for driving the transverse movement of the placement seat 201 is fixedly mounted on the top of the turning table 1. The clamping ring 202 is rotatably mounted in the placement seat 201. A first tooth groove 209 is formed at one end of the clamping ring 202. A first gear 208 meshed with the first tooth groove 209 is arranged in the placement seat 201 to drive the rotation of the clamping ring 202. Among them, the metal pipe is placed in the grooves of the two placement seats 201. The upper opening method is adopted to facilitate loading and unloading. After the metal pipe is placed, the motor drives the first gear 208 to rotate. The rotation of the first gear 208 drives the clamping ring 202 to rotate 180 degrees to the position directly above the placement seat 201, so that the clamping ring 202 on the placement seat 201 completes the quick clamping of the metal pipe.

[0024] As Figure 2 and Figure 4 shown in the figure, a plurality of pressure sensors 203 are fixedly mounted at both ends of the two turning tables 1 away from each other. A telescopic rod 205 is fixedly connected between the pressing plate 204 and the plurality of pressure sensors 203. A first spring 206 is sleeved on the telescopic rod 205. A plurality of first steel balls 207 are rotatably mounted in an annular array at one end of the pressing plate 204 away from the placement seat 201. Among them, after the clamping ring 202 closes above the placement seat 201 to clamp the metal pipe, the hydraulic rod drives the two placement seats 201 to move away from each other until the pressing plate 204 contacts the flanges on both sides of the metal pipe. At this time, the placement seat 201 continues to displace and compresses the first spring 206 and the telescopic rod 205. When the telescopic rod 205 is shortened to the shortest, the pressure sensor 203 is pressed to the limit, and the placement seat 201 stops displacing. The two-side support method avoids the problem that the metal pipe bends due to excessive overhang and causes crosstalk during its rotation. When the roller rack 101 drives the metal pipe to rotate, under the rotation of the first steel balls 207, it will neither affect the rotation of the metal pipe nor can it horizontally limit the metal pipe.

[0025] As Figure 6As shown, two moving seats 211 are symmetrically and slidably installed at one end of the engaging ring 202. Clamping rods 212 are arranged above and below the moving seats 211, and the clamping rods 212 are rotatably installed on the engaging ring 202. Pressing wheels are rotatably installed at one end of the two clamping rods 212 and the moving seats 211. A pulley is rotatably installed at the end of the clamping rod 212 away from the pressing wheel, and a tension sensor 213 is rotatably installed on the rotating shafts of the two pulleys. A second spring 214 is fixedly connected between the two tension sensors 213. The moving seat 211 is trapezoidal, and the two pulleys are pressed against the slopes of the moving seat 211 under the elastic force of the second spring 214. A lead screw 210 for driving the two moving seats 211 to move closer or farther away at the same speed is installed at one end of the engaging ring 202. Among them, after the metal pipe is engaged and pressed, the motor drives the lead screw 210 to rotate. Since the thread pitches on both sides of the lead screw 210 are the same and the thread directions are opposite, the two moving seats 211 will be driven to approach each other. And due to the design of the two slopes of the moving seat 211, the two clamping rods 212 will be driven to rotate (the included angle between the two clamping rods 212 becomes larger) under the elastic action of the second spring 214 during the moving process. The metal pipe is further pressed and limited by the pressing wheels on the clamping rods 212 and the moving seats 211. And by controlling the start and stop of the motor driving the lead screw 210 through the force measurement of the tension sensor 213, the problem that the placing seat 201 and the engaging ring 202 are not fully attached to the metal pipe due to production errors can be avoided.

[0026] As Figure 7 shown, two guide rods 103 are symmetrically installed on the support shaft 102. A guide groove 302 for sliding and limiting the guide rod 103 is opened in the inner circle of the annular guide seat 301. The guide groove 302 is inclined forward so that the turning table 1 is inclined during the turning process and is in a horizontal state during turning. Among them, when the inner circle of one side of the metal pipe is turned, the turning table 1 rotates. When the turning table 1 rotates clockwise between zero degrees and ninety degrees, the pipe is inclined to pour out the residual debris in the pipe. When the turning table 1 rotates clockwise between ninety degrees and one hundred and eighty degrees, it gradually returns to its original position. Finally, when it rotates to one hundred and eighty degrees, the turning table 1 is in a horizontal state again and the pipe is reversed. The method of half-turning with reversal effectively reduces the pressure of the overlong overhang of the tool rest 602.

[0027] As Figure 8As shown, the connecting component 4 includes a constant velocity joint 401 and a ball head 402. The constant velocity joint 401 is rotatably installed on the base 3. A worm gear 404 meshingly connected with the worm 303 is fixedly installed on the shaft of the constant velocity joint 401. The ball head 402 is fixedly installed at the bottom of the support shaft 102. The ball head 402 is rotatably installed in the constant velocity joint 401. A plurality of card slots are formed in an annular array on the ball head 402, and a second steel ball 403 is arranged between the card slots and the constant velocity joint 401. Among them, the motor drives the worm 303 to rotate. The rotation of the worm 303 drives the constant velocity joint 401 to rotate through the meshing action with the worm gear 404. The rotation of the constant velocity joint 401 drives the ball head 402 to rotate through the engagement action of the second steel ball 403 with the constant velocity joint 401 and the ball head 402, thereby driving the turning table 1 to rotate. During the rotation of the turning table 1, it will tilt. At this time, the sliding action of the second steel ball 403 and the card slots will continue to drive the ball head 402 to rotate, and the linkage (rotational connection) is completed without affecting the tilting of the turning table 1.

[0028] As Figure 9 and Figure 10 shown, the turning component 6 includes a tool rest mounting rod 601 and a collection cylinder 607. The collection cylinder 607 is fixedly installed on the turning frame 5, and the tool rest mounting rod 601 is fixedly installed at the other end of the collection cylinder 607. A tool rest 602 is rotatably installed at the end of the tool rest mounting rod 601 away from the collection cylinder 607, and a turning tool bit 603 is fixedly installed on the tool rest 602. A threaded section is formed on the tool rest mounting rod 601, and an adjusting nut 604 is threadedly sleeved on the threaded section. A collar 605 is rotatably sleeved on the adjusting nut 604, and a connecting rod 606 is rotatably installed between the collar 605 and the tool rest 602. Among them, the hydraulic rod can drive the turning frame 5 to translate. When turning is required, the turning frame 5 drives the tool rest 602 to extend into the metal pipe. Before the turning table 1 rotates, the tool rest 602 is withdrawn from the metal pipe. Before turning, the adjusting nut 604 is rotated to make the adjusting nut 604 translate on the threaded section of the tool rest mounting rod 601, and the tool rest 602 is driven to rotate on the tool rest mounting rod 601 through the linkage action of the connecting rod 606 to achieve the purpose of adjusting the feed rate.

[0029] As Figure 11As shown, the outer end of the collecting barrel 607 is rotatably mounted with a second gear 608 in an annular array, and the collecting barrel 607 is rotatably mounted with a driving ring 609 and a collecting ring 611, which are both meshed and connected with the second gear 608 to form a reverse driving effect, and the outer end of the driving ring 609 is movably embedded with a friction block 610 in an annular array, and the collecting ring 611 is provided with a plurality of chip collection openings 613 tangent to the inner circle of the collecting ring 611 in an annular array, and the inner wall of the collecting barrel 607 corresponding to the collecting ring 611 is provided with a plurality of chip collection openings 613 tangent to the inner circle of the collecting ring 611. A plurality of chip feed ports are provided. When the turning cutter head 603 turns the inner wall of the metal pipe, the friction between the friction block 610 and the metal pipe is used to drive the driving ring 609 to rotate. The driving ring 609 rotates to drive the collecting ring 611 to rotate in the opposite direction through the meshing action of the second gear 608. The collecting ring 611 rotates in the opposite direction to collect metal debris through the chip collecting port 613. Under the action of centrifugal force, the debris is thrown into the collecting barrel 607 through the chip feed port for collection. Metal debris can be collected while turning, which is more efficient.

[0030] like Figure 12 As shown, a return spring is fixedly installed between the friction block 610 and the drive ring 609, and both end surfaces of the friction block 610 are provided with rounded corners, wherein the return spring is added to enhance the effect of friction, and the rounded corner design, in conjunction with the compression return spring, can prevent the metal pipe from resisting the friction block 610 during feed (the radial friction of the pipe is large, and the axial friction is small and does not affect the feed), a cutting blade 614 is fixedly installed at the inner end of the chip collecting port 613, wherein, when collecting longer metal debris, the rotation effect of the collecting ring 611 is utilized, the chip collecting port 613 and the chip feeding port form a cutting effect, and the longer metal debris is shredded by the cutting blade 614 to prevent clogging, and a cutting blade 614 is rotatably installed at one end of the collecting cylinder 607 near the tool holder mounting rod 601 A guide plate 612 is provided with a third gear 615 for driving the guide plate 612 to rotate in the collection barrel 607. A conical collection chamber is provided on the side of the collection barrel 607 close to the turning frame 5. A plurality of twisted guide plates are provided in a ring array on the guide plate 612 to guide the debris into the collection chamber. A cleaning door 616 is provided on the end of the collection barrel 607 close to the turning frame 5, wherein the collection ring 611 rotates to drive the guide plate 612 to rotate in the opposite direction through the meshing action of the third gear 615, the collection ring 611 and the guide plate 612. When the metal debris enters the collection barrel 607, the guide plate on the guide plate 612 guides the debris into the conical collection chamber in the collection barrel 607 through the guiding action of the guide plate. Finally, after the turning is completed, the cleaning door 616 is opened to clean the debris.

[0031] The above are only the preferred embodiments of the present invention and do not limit the present invention in other forms. Any person skilled in the relevant art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. An intelligent automatic turning device for a rubber-lined metal pipe, comprising a turning table (1), a base (3) and a turning frame (5), characterized in that: A roller frame (101) is fixedly mounted at the top center of the turning table (1) for driving the pipe to rotate, a support shaft (102) is fixedly mounted at the bottom of the turning table (1), an annular guide seat (301) is fixedly welded to the top of the base (3), a worm (303) is mounted on the base (3) for driving the turning table (1) to rotate, and the turning frame (5) is slidably mounted in the base (3), and further comprises: Two positioning components (2) symmetrically mounted on the top of the turning table (1); A connecting component (4) installed between the turning table (1) and the base (3) for driving the turning table (1) to rotate; A turning assembly (6) mounted on the turning frame (5) and having adjustment and waste chip collection functions.

2. The intelligent automatic turning device for rubber-lined metal pipes according to claim 1 is characterized in that: Two guide rods (103) are symmetrically mounted on the support shaft (102); the inner circle of the annular guide seat (301) is provided with a guide groove (302) for slidingly limiting the guide rods (103); the guide groove (302) is inclined toward the front side so that the turning table (1) is tilted during rotation and is in a horizontal state during turning.

3. The intelligent automatic turning device for rubber-lined metal pipes according to claim 1 is characterized in that: The positioning assembly (2) comprises a placement seat (201), a clamping ring (202) and a stop plate (204); the placement seat (201) is slidably mounted on the top of the turning table (1); the clamping ring (202) is rotatably mounted in the placement seat (201); a first tooth groove (209) is formed at one end of the clamping ring (202); and a first gear (208) meshingly connected with the first tooth groove (209) is provided in the placement seat (201) to drive the clamping ring (202) to rotate.

4. The intelligent automatic turning device for rubber-lined metal pipes according to claim 3 is characterized in that: A plurality of pressure sensors (203) are fixedly mounted on one end of the two turning tables (1) away from each other, a telescopic rod (205) is fixedly connected between the abutment plate (204) and the plurality of pressure sensors (203), a first spring (206) is sleeved on the telescopic rod (205), and a plurality of first steel balls (207) are rotatably mounted in a ring array on one end of the abutment plate (204) away from the placement seat (201).

5. The intelligent automatic turning device for rubber-lined metal pipes according to claim 4 is characterized in that: Two movable seats (211) are symmetrically and slidably mounted on one end of the clamping ring (202); clamping rods (212) are arranged on the upper and lower parts of the movable seat (211) and are rotatably mounted on the clamping ring (202); a clamping wheel is rotatably mounted on one end of the two clamping rods (212) and the movable seat (211); a pulley is rotatably mounted on the end of the clamping rod (212) away from the clamping wheel and tension sensors (213) are rotatably mounted on the rotation axes of the two pulleys; a second spring (214) is fixedly connected between the two tension sensors (213); the movable seat (211) is in a prism shape and the two pulleys are tightly attached to the slope of the movable seat (211) under the elastic force of the second spring (214); a lead screw (210) is mounted on one end of the clamping ring (202) for driving the two movable seats (211) to move towards or away at the same speed.

6. The intelligent automatic turning device for rubber-lined metal pipes according to claim 1 is characterized in that: The connecting assembly (4) comprises a ball cage (401) and a ball head (402); the ball cage (401) is rotatably mounted on the base (3); a worm wheel (404) meshingly connected to the worm (303) is fixedly mounted on the shaft of the ball cage (401); the ball head (402) is fixedly mounted on the bottom of the support shaft (102); the ball head (402) is rotatably mounted in the ball cage (401); a plurality of slots are formed in an annular array on the ball head (402); and a second steel ball (403) is provided between the slots and the ball cage (401).

7. The intelligent automatic turning device for rubber-lined metal pipes according to claim 1 is characterized by: The turning assembly (6) comprises a tool holder mounting rod (601) and a collecting tube (607); the collecting tube (607) is fixedly mounted on the turning frame (5) and the tool holder mounting rod (601) is fixedly mounted on the other end of the collecting tube (607); a tool holder (602) is rotatably mounted on one end of the tool holder mounting rod (601) away from the collecting tube (607) and a turning tool head (603) is fixedly mounted on the tool holder (602); a threaded section is provided on the tool holder mounting rod (601) and an adjusting screw sleeve (604) is threadedly sleeved on the threaded section; a collar (605) is rotatably sleeved on the adjusting screw sleeve (604), and a connecting rod (606) is rotatably mounted between the collar (605) and the tool holder (602).

8. The intelligent automatic turning device for rubber-lined metal pipes according to claim 7 is characterized in that: The outer end of the collecting barrel (607) is rotatably mounted with a second gear (608) in an annular array, the collecting barrel (607) is rotatably sleeved with a driving ring (609) and a collecting ring (611), the driving ring (609) and the collecting ring (611) are both meshed and connected with the second gear (608) to form a reverse driving effect, the outer end of the driving ring (609) is movably embedded with a friction block (610) in an annular array, the collecting ring (611) is provided with a plurality of chip collection openings (613) tangent to the inner circle of the collecting ring (611) in an annular array, and the inner wall of the collecting barrel (607) corresponding to the collecting ring (611) is provided with a plurality of chip feed openings.

9. The intelligent automatic turning device for rubber-lined metal pipes according to claim 8 is characterized in that: A return spring is fixedly mounted between the friction block (610) and the drive ring (609), and both end surfaces of the friction block (610) are provided with rounded corners. A cutting blade (614) is fixedly mounted at the inner end of the chip collection opening (613).

10. The intelligent automatic turning device for rubber-lined metal pipes according to claim 9 is characterized in that: A guide plate (612) is rotatably mounted in the collecting barrel (607) near one end of the tool holder mounting rod (601); a third gear (615) is rotatably mounted in the collecting barrel (607) for driving the guide plate (612) to rotate; a conical collecting chamber is provided on one side of the collecting barrel (607) near the turning frame (5); and a plurality of twisted guide plates are provided in an annular array on the guide plate (612) to guide debris into the collecting chamber.

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