An intelligent automatic turning device for rubber-lined metal pipes

Abstract

The present invention provides an intelligent automatic turning device for rubber-lined metal pipes, which relates to the technical field of circular pipe turning. It includes 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 to drive the pipe to rotate. It also includes two positioning components symmetrically installed on the top of the turning table, a connection component installed between the turning table and the base to drive the turning table to rotate, and a turning component installed on the turning frame with the functions of adjustment and chip collection. Through the above technical solutions, the purpose is to position the pipe with a longer length through the positioning component to prevent deformation during the overhanging process and endwise displacement during rotation, and a rotatable turning table design is adopted for half-side cutting to reduce the overhanging pressure of the tool rest. Moreover, the tool rest in the turning component has the functions of adjustable feed amount and chip collection. At the same time, when the turning table rotates by 90 degrees, it will discharge materials obliquely, further improving the chip cleaning effect.

Description

Technical Field

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

[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 method of an 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 purpose 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 method of an 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 purpose, 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, characterized in that: 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, two guide rods are symmetrically installed on the support shaft, a ring-shaped guide seat is fixedly welded to the top of the base, a guide groove for sliding and limiting the guide rod is opened in the inner circle of the ring-shaped guide seat, the guide groove is inclined forward so that the turning table tilts during rotation and is in a horizontal state during turning, 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:

[0006] Two positioning components symmetrically installed on the top of the turning table, the positioning component includes a placement seat, a clamping ring and a pressing plate, a plurality of pressure sensors are fixedly installed at one end of the two turning tables away from each other, telescopic rods are fixedly connected between the pressing plate and the plurality of pressure sensors, a first spring is sleeved on the telescopic rod, and a plurality of first steel balls are rotatably installed in a circular array at one end of the pressing plate away from the placement seat;

[0007] A connecting component installed between the turning table and the base for driving the turning table to rotate;

[0008] A turning component installed on the turning frame with functions of adjustment and waste chip collection. The turning component includes a tool rest mounting rod and a collection cylinder. The collection cylinder is fixedly installed on the turning frame, and the tool rest mounting rod is fixedly installed at the other end of the collection cylinder. A tool rest is rotatably installed at the end of the tool rest mounting rod away from the collection cylinder, and a turning tool head is fixedly installed on the tool rest. A threaded section is provided on the tool rest mounting rod, and an adjusting sleeve is threadedly sleeved on the threaded section. A collar is rotatably sleeved on the adjusting sleeve, and a connecting rod is rotatably installed between the collar and the tool rest. Second gears are rotatably installed in an annular array at the outer end of the collection cylinder. A driving ring and a collection ring are rotatably sleeved on the collection cylinder. The driving ring and the collection ring are both meshed with 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 collection ports tangent to the inner circle of the collection ring are provided in an annular array on the collection ring. A plurality of chip inlet ports are provided on the inner wall of the collection cylinder corresponding to the collection ring.

[0009] In at least some embodiments, the placement seat is slidably installed on the top of the turning table, the engaging ring is rotatably installed in the placement seat, a first tooth groove is provided at one end of the engaging ring, and a first gear meshing with the first tooth groove is provided in the placement seat to drive the engaging ring to rotate.

[0010] In at least some embodiments, two moving seats are symmetrically and slidably installed at one end of the engaging ring. Clamping rods are arranged above and below the moving seats, and the clamping rods are rotatably installed on the engaging ring. Pressing wheels are rotatably installed at one ends of the two clamping rods and the moving seats. A pulley is rotatably installed at the end of the clamping rod away from the pressing wheel, and a tension sensor is rotatably installed on the rotating shafts of the two pulleys. A second spring is fixedly connected between the two tension sensors. The moving seat is trapezoidal, and the two pulleys are pressed against the slope 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 engaging ring.

[0011] In at least some embodiments, the connecting component includes a constant velocity joint and a ball head. The constant velocity joint is rotatably installed on the base, a worm gear meshing with the worm is fixedly installed on the shaft of the constant velocity joint, the ball head is fixedly installed at the bottom of the support shaft, the ball head is rotatably installed in the constant velocity joint, a plurality of card slots are provided in an annular array on the ball head, and second steel balls are provided between the card slots and the constant velocity joint.

[0012] In at least some embodiments, a return spring is fixedly installed between the friction block and the driving ring, and rounded corners are provided on both end faces of the friction block. Cutting blades are fixedly installed at the inner ends of the chip collection ports.

[0013] In at least some embodiments, a flow guiding disc is rotatably installed near one end of the tool rest mounting rod inside the collection cylinder, a third gear for driving the flow guiding disc to rotate is rotatably installed inside the collection cylinder, a conical collection cavity is formed on one side of the collection cylinder close to the turning frame, and a plurality of twisted flow guiding plates are arranged in an annular array on the flow guiding disc to guide the debris into the collection cavity.

[0014] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0015] In the present invention, by driving the engaging ring in the driving and positioning assembly to rotate 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. Moreover, it does not affect the rotation of the metal pipe and 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 rate is achieved to adapt to different turning requirements. During the turning process, the metal pipe drives the driving ring in the turning assembly to rotate, and drives the collection ring to rotate in the opposite direction to collect the metal debris through the chip collection port, and under the action of centrifugal force, the debris is thrown into the collection cylinder through the chip inlet for collection. While turning, the metal debris is collected, with higher efficiency. At the same time, when collecting the metal debris, by using the rotation of the collection ring, a cutting effect is formed between the chip collection port and the chip inlet, and the longer metal debris is 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 the design of the rotatable turning table is adopted for half-side cutting, which reduces the overhang pressure of the tool rest. When the turning table rotates 90 degrees, it will tilt to unload materials, further improving the effect of debris cleaning. Description of the Drawings

[0018] Figure 1 It is an overall three-dimensional schematic diagram of an intelligent automatic turning device for a rubber-lined metal pipe proposed by the present invention;

[0019] Figure 2 It 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;

[0020] Figure 3 It is a structural schematic diagram of the driving and positioning assembly in an intelligent automatic turning device for a rubber-lined metal pipe proposed by the present invention;

[0021] Figure 4 It is a structural schematic diagram of the placing seat in an intelligent automatic turning device for a rubber-lined metal pipe proposed by the present invention;

[0022] Figure 5 The structural schematic diagram of the engaging ring in the intelligent automatic turning device for rubber-lined metal pipes proposed by the present invention Figure 1 ;

[0023] Figure 6 The structural schematic diagram of the engaging ring in the intelligent automatic turning device for rubber-lined metal pipes proposed by the present invention Figure 2 ;

[0024] Figure 7 The structural schematic diagram of the base in the intelligent automatic turning device for rubber-lined metal pipes proposed by the present invention;

[0025] Figure 8 The structural schematic diagram of the connection component in the intelligent automatic turning device for rubber-lined metal pipes proposed by the present invention;

[0026] Figure 9 The structural schematic diagram of the turning frame in the intelligent automatic turning device for rubber-lined metal pipes proposed by the present invention;

[0027] Figure 10 The structural schematic diagram of the turning component in the intelligent automatic turning device for rubber-lined metal pipes proposed by the present invention;

[0028] Figure 11 The structural schematic diagram of the collection cylinder in the intelligent automatic turning device for rubber-lined metal pipes proposed by the present invention;

[0029] Figure 12 The connection schematic diagram of the collection ring and the diversion plate in the intelligent automatic turning device for rubber-lined metal pipes proposed by the present invention.

[0030] Legend:

[0031] 1. Turning table; 101. Roller frame; 102. Support shaft; 103. Guide rod;

[0032] 2. Positioning component; 201. Placing seat; 202. Engaging ring; 203. Pressure sensor; 204. Bracing plate; 205. Telescopic rod; 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;

[0033] 3. Base; 301. Annular guide seat; 302. Guide groove; 303. Worm;

[0034] 4. Connection component; 401. Constant velocity joint; 402. Ball head; 403. Second steel ball; 404. Worm gear;

[0035] 5. Turning frame;

[0036] 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; 613. Chip collection port; 614. Cutting blade; 615. Third gear; 616. Cleaning door. Detailed implementation manner

[0037] In order to more clearly understand the above 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 may be combined with each other.

[0038] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention may 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.

[0039] 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. A circular 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 and having the functions of adjustment and waste chip collection.

[0040] Such as Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, the positioning component 2 includes a placement seat 201, a clamping ring 202, and a resisting plate 204. The placement seat 201 is slidably installed on the top of the turning table 1. A hydraulic rod for driving the transverse movement of the placement seat 201 is fixedly installed on the top of the turning table 1. The clamping ring 202 is rotatably installed 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, and 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.

[0041] As Figure 2 and Figure 4 As shown, a plurality of pressure sensors 203 are fixedly installed at the mutually remote ends of the two turning tables 1. A telescopic rod 205 is fixedly connected between the resisting 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 installed in an annular array at one end of the resisting 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 resisting 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 frame 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 horizontally limit the metal pipe.

[0042] As Figure 6As shown in the figure, 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 frustum-shaped, and the two pulleys are pressed against the slope 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.

[0043] 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 provided 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 rotation 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 0 degrees and 90 degrees, the pipe is inclined to pour out the residual debris in the pipe. When the turning table 1 rotates clockwise between 90 degrees and 180 degrees, it gradually returns to its original position. Finally, when it rotates to 180 degrees, the turning table 1 is again in a horizontal state and the pipe is reversed. The method of half-turning with reversal effectively reduces the pressure of the tool holder 602 with too long overhang.

[0044] 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 meshed 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 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 slot will continue to drive the ball head 402 to rotate, and the linkage (rotary connection) is completed without affecting the tilting of the turning table 1.

[0045] 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 sleeve 604 is threadedly sleeved on the threaded section. A collar 605 is rotatably sleeved on the adjusting sleeve 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 sleeve 604 is rotated to make the adjusting sleeve 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.

[0046] 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.

[0047] 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.

[0048] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention in any other form. 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 installed at the center of the top of the turning table (1) for driving the pipeline to rotate. A support shaft (102) is fixedly installed at the bottom of the turning table (1). Two guide rods (103) are symmetrically installed on the support shaft (102). A ring-shaped guide seat (301) is fixedly welded to the top of the base (3). A guide groove (302) for sliding and limiting the guide rod (103) is formed in the inner circle of the ring-shaped guide seat (301). The guide groove (302) is inclined forward so that the turning table (1) tilts during rotation and is in a horizontal state during turning. 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), and further includes: Two positioning components (2) symmetrically installed on the top of the turning table (1). The positioning component (2) includes a placement seat (201), a clamping ring (202), and a pressing plate (204). A plurality of pressure sensors (203) are fixedly installed at one end of the two turning tables (1) away from each other. Expansion rods (205) are fixedly connected between the pressing plate (204) and the plurality of pressure sensors (203). A first spring (206) is sleeved on the expansion rod (205). A plurality of first steel balls (207) are rotatably installed in an annular array at one end of the pressing plate (204) away from the placement seat (201); A connection component (4) installed between the turning table (1) and the base (3) for driving the turning table (1) to rotate; A turning component (6) with adjustment and chip collection functions installed on the turning frame (5). 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 one 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 adjustment nut (604) is threadedly sleeved on the threaded section. A collar (605) is rotatably sleeved on the adjustment nut (604), and a connecting rod (606) is rotatably installed between the collar (605) and the tool rest (602). Second gears (608) are rotatably installed in an annular array at the outer end of the collection cylinder (607). A driving ring (609) and a collection ring (611) are rotatably sleeved on the collection cylinder (607). The driving ring (609) and the collection ring (611) are both meshed with the second gears (608) to form a reverse driving effect. Friction blocks (610) are movably embedded in an annular array at the outer end of the driving ring (609). A plurality of chip collection ports (613) tangent to the inner circle of the collection ring (611) are formed in an annular array on the collection ring (611). A plurality of chip inlet ports are formed on the inner wall of the collection cylinder (607) corresponding to the collection ring (611).

2. The intelligent automatic turning device for a rubber-lined metal pipe according to claim 1, characterized in that: The placement seat (201) is slidably mounted on the top of the turning table (1). The engaging ring (202) is rotatably mounted in the placement seat (201). One end of the engaging ring (202) is provided with a first tooth groove (209), and a first gear (208) meshingly connected with the first tooth groove (209) is arranged in the placement seat (201) to drive the engaging ring (202) to rotate.

3. The intelligent automatic turning device for a rubber-lined metal pipeline according to claim 2, characterized in that: Two moving seats (211) are symmetrically and slidably mounted 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 mounted on the engaging ring (202). Pressing wheels are rotatably mounted at one ends of the two clamping rods (212) and the moving seats (211). A pulley is rotatably mounted at the end of the clamping rod (212) away from the pressing wheel, and a tension sensor (213) is rotatably mounted 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 frustum-shaped, and the two pulleys are in close contact with the slope surface 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 to or away from each other at the same speed is mounted at one end of the engaging ring (202).

4. An intelligent automatic turning device for a rubber-lined metal pipe according to claim 1, characterized in that: The connecting component (4) includes a ball cage (401) and a ball head (402). The ball cage (401) is rotatably mounted on the base (3). A worm gear (404) meshingly connected with the worm (303) is fixedly mounted on the shaft of the ball cage (401). The ball head (402) is fixedly mounted at the bottom of the support shaft (102). The ball head (402) is rotatably mounted in the ball cage (401). A plurality of card slots are annularly and arrayedly formed on the ball head (402), and second steel balls (403) are arranged between the card slots and the ball cage (401).

5. An intelligent automatic turning device for a rubber-lined metal pipe according to claim 1, characterized in that: A return spring is fixedly mounted between the friction block (610) and the driving ring (609), and rounded corners are provided on both end faces of the friction block (610). A cutting blade (614) is fixedly mounted at the inner end of the chip collection port (613).

6. The intelligent automatic turning device for a rubber-lined metal pipe according to claim 5, characterized in that: A diversion plate (612) is rotatably mounted at one end of the collection cylinder (607) close to the tool rest mounting rod (601). A third gear (615) for driving the diversion plate (612) to rotate is rotatably mounted in the collection cylinder (607). A conical collection cavity is formed on one side of the collection cylinder (607) close to the turning frame (5). A plurality of twisted diversion plates are annularly and arrayedly arranged on the diversion plate (612) to guide the chips into the collection cavity.

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