A grinding device with rust removal function for metal pipe ports

Abstract

The present invention discloses a grinding device with a function of removing rust from metal pipe ports, and relates to the field of mechanical processing technology. The grinding device with a function of removing rust from metal pipe ports comprises a base, a movable plate is slidably installed on the top of the base, a pushing device is fixedly installed on the top of the base, the output end of the pushing device is fixedly connected to the movable plate, a connecting frame is fixedly installed on the surface of the movable plate, and a No. 1 grinding plate is slidably sleeved on the top of the connecting frame. When the grinding device with a function of removing rust from metal pipe ports places the pipe inside the rotating plate, the pipe can be restricted on the rotating plate by the sleeve plate, the movable plate can be driven to move by the pushing device, the inner and outer walls of the pipe are between the No. 1 grinding plate and the No. 2 grinding plate, the side of the pipe will contact the friction block, and the rotating plate drives the pipe to rotate so that the No. 1 grinding plate, the No. 2 grinding plate and the friction block can remove rust from the pipe port.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, in particular to a grinding device with the function of removing rust from a metal pipe port. Background Art

[0002] Pipelines can be used to transport different materials, including liquids, gases and some fixed parts. Pipeline transportation can be separated from the outside world to ensure safety during transportation.

[0003] When the pipeline is transported, the end of the pipeline will contact and rub against the ground, which will cause the anti-rust layer of the end of the pipeline to wear, making the end of the pipeline particularly prone to rust. The rusted pipeline end will reduce the sealing during connection, and the rust on the pipeline end needs to be removed. To remove the rust, the inner wall, outer wall and side of the pipeline need to be rusted. The existing grinding device is not convenient for grinding the inner wall, outer wall and side of the pipeline at the same time, which will reduce the efficiency of rust removal. The grinding device will also be worn after a long period of grinding, affecting the grinding effect. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides a grinding device with a rust removal function for metal pipe ports, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a grinding device with a rust removal function for a metal pipe port, comprising a base, a movable plate slidably installed on the top of the base, a pushing device fixedly installed on the top of the base, an output end of the pushing device fixedly connected to the movable plate, a connecting frame fixedly installed on the surface of the movable plate, a No. 1 grinding plate slidably sleeved on the top of the connecting frame, a fixed frame fixedly installed on the surface of the movable plate, a No. 2 grinding plate slidably sleeved on the top of the fixed frame, a rotating rod rotatably installed on the inner and outer walls of the connecting frame, a pushing plate 1 fixedly installed on the surface of the rotating rod, a pushing plate 2 fixedly installed on the surface of the rotating rod, a connecting plate fixedly installed on the surface of the rotating rod, a threaded rod penetrates the connecting frame and the threaded rod is threadedly connected to the connecting frame, the bottom of the threaded rod contacts the connecting plate, a cavity is opened on the back of the No. 2 grinding plate, a transmission plate is slidably sleeved on the bottom of the cavity, a two-way telescopic rod is hingedly installed on the cavity through a bracket, and a friction block is slidably sleeved on the top of the cavity.

[0008] Preferably, the free end of the bidirectional telescopic rod is hinged to the transmission plate, and a protrusion is fixedly mounted on the free end of the bidirectional telescopic rod, and the protrusion is in contact with the friction block.

[0009] Preferably, a support rod is fixedly installed on the top of the base, an arc plate is fixedly installed on the top of the support rod, a rotating plate is slidably installed on the surface of the arc plate, a sleeve plate is hinged on the top of the rotating plate, a tooth block is fixedly installed on the surface of the rotating plate, a slot is provided at the end of the sleeve plate that is separated from the rotating plate, a groove is provided on the top of the rotating plate, a locking block is slidably sleeved on the groove, a telescopic shaft is rotatably installed on the surface of the support rod, and a gear is fixedly installed on the surface of the telescopic shaft.

[0010] Preferably, a protective device is provided on the curved plate, the protective device includes a limit frame, the limit frame is fixedly mounted on the bottom of the curved plate, a slide rod is slidably mounted inside the limit frame, a rotating disk is rotatably mounted on the left side of the slide rod, a pressure rod is fixedly mounted on the top of the slide rod, a piston is slidably mounted on the inner wall of the curved plate, a trapezoidal block is fixedly mounted on the left side of the piston, and an injection pipe is fixedly mounted on the right side of the curved plate.

[0011] Preferably, a vibration detection device is provided on the sliding rod, and the vibration detection device includes a movable frame, which is fixedly installed on the bottom of the sliding rod, a movable rod is slidably sleeved on the bottom of the movable frame, a counterweight is fixedly installed on the bottom of the movable rod, and a bell is fixedly installed on the top of the base.

[0012] Preferably, the left top of the trapezoidal block is arranged as an inclined surface, and the inclined surface contacts the pressure rod.

[0013] Preferably, a grinding control device is provided on the movable plate, and the grinding control device includes a connecting rod, which is fixedly mounted on the left side of the movable plate, a winding shaft is rotatably mounted on the surface of the connecting rod, a rubber wheel is fixedly mounted on the end of the winding shaft away from the connecting rod, a sliding groove is opened on the left side of the movable plate, a sliding plate is slidably mounted on the inner wall of the sliding groove, a switch is fixedly mounted on the left side of the sliding plate, and the switch is fixedly connected to the winding shaft through a pull rope.

[0014] Preferably, a connecting plate is fixedly installed on the left side of the movable plate, a swinging plate is hinged on the left side of the connecting plate, the movable plate is penetrated by the baffle plate and the baffle plate is slidably sleeved on the movable plate, the swinging plate is fixedly connected to the baffle plate by a connecting rope, and the sliding plate is in contact with the swinging plate.

[0015] Preferably, the pull rope is wound around a reel, and a volute spring is provided between the reel and the connecting rod.

[0016] (III) Beneficial effects

[0017] The present invention provides a grinding device with the function of removing rust from the end of a metal pipe, which has the following beneficial effects:

[0018] (1) The polishing device with the function of removing rust from the end of a metal pipe, when the pipe is placed inside the rotating plate, the sleeve plate can be used to restrict the pipe on the rotating plate, and the pushing device can be used to drive the movable plate to move, so that the inner and outer walls of the pipe are between the No. 1 polishing plate and the No. 2 polishing plate, and the side of the pipe will contact the friction block. The rotating plate drives the pipe to rotate so that the No. 1 polishing plate, the No. 2 polishing plate and the friction block can remove rust from the end of the pipe. When the No. 1 polishing plate and the No. 2 polishing plate are worn and cannot fit on the pipe, the No. 1 polishing plate and the No. 2 polishing plate can be adjusted by rotating the rotating rod to avoid the wear of the No. 1 polishing plate and the No. 2 polishing plate affecting the rust removal effect on the pipe.

[0019] (2) The polishing device with the function of removing rust from the port of a metal pipe, when the pipe is placed on the rotating plate, the pipe can push the rotating plate and the sliding rod to move downward, and the sliding rod can drive the pressure rod to move downward, and the pressure rod can push the trapezoidal block and the piston to move, and the movement of the piston can squeeze the gas inside the arc plate to be ejected from the jet pipe, and the gas ejected from the jet pipe can first remove the waste residue on the rotating plate to prevent the waste residue from remaining on the rotating plate and causing the waste residue to scratch the pipe, thereby affecting the friction between the pipe and the rotating plate, and preventing the rotating plate from being unable to drive the pipe to rotate when the pipe slides on the rotating plate.

[0020] (3) The polishing device with the function of removing rust from the metal pipe port can cause the pipe to vibrate between the rotating plate and the sleeve plate due to the gap between the pipe and the rotating plate when the rotating plate and the sleeve plate drive the pipe to rotate. If the amplitude of the pipe vibration is too large, it will affect the smoothness of the polishing. When the vibration of the pipe is too large, the amplitude of the upward and downward movement of the rotating disk and the counterweight block will increase, causing the counterweight block to knock on the bell, and the sound of the bell can serve as a reminder.

[0021] (4) The grinding device with the function of removing rust from the end of a metal pipe can drive the connecting rod to move when the moving plate moves, so that the rubber wheel will contact the pipe and roll inside the pipe. The pipe will also push the sliding plate to move, so that the moving plate can straighten the pull rope. When the pipe is over-grinded, the moving plate will continue to move, and the rubber wheel can roll through the pull rope to pull the switch to turn off the drive device to prevent the pipe from being over-grinded. When the sliding plate moves, it can push the swing plate to rotate. The swing plate can pull the baffle to move through the connecting rope. The movement of the baffle can block the sparks generated during grinding to avoid the danger of spark splashing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the connection frame of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the curved plate of the present invention;

[0025] Figure 4 It is a schematic diagram of the internal structure of the movable frame of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the grinding control device of the present invention;

[0027] Figure 6 This is a schematic diagram of the winding wheel structure of the present invention;

[0028] Figure 7 It is a schematic diagram of the sleeve plate structure of the present invention.

[0029] In the figure: 1, base; 2, moving plate; 3, pushing device; 41, connecting frame; 42, grinding plate No. 1; 43, fixed frame; 44, grinding plate No. 2; 45, rotating rod; 46, connecting plate; 47, threaded rod; 48, pushing plate No. 1; 49, pushing plate No. 2; 410, transmission plate; 411, two-way telescopic rod; 412, friction block; 51, support rod; 52, arc plate; 53, rotating plate; 531, sleeve plate; 54, Telescopic shaft; 55, gear; 56, tooth block; 57, positioning block; 61, limit frame; 62, slide rod; 63, rotating disk; 64, pressure rod; 65, trapezoidal block; 66, piston; 71, movable frame; 72, movable rod; 73, counterweight; 74, bell; 81, connecting rod; 82, winding shaft; 83, sliding plate; 84, switch; 85, pull rope; 91, connecting plate; 92, swing plate; 93, baffle; 94, connecting rope. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-7The present invention provides a technical solution: a grinding device with a rust removal function for a metal pipe port, comprising a base 1, a moving plate 2 is slidably mounted on the top of the base 1, a pushing device 3 is fixedly mounted on the top of the base 1, an output end of the pushing device 3 is fixedly connected to the moving plate 2, a connecting frame 41 is fixedly mounted on the surface of the moving plate 2, a first grinding plate 42 is slidably sleeved on the top of the connecting frame 41, a fixed frame 43 is fixedly mounted on the surface of the moving plate 2, a second grinding plate 44 is slidably sleeved on the top of the fixed frame 43, a rotating rod 45 is rotatably mounted on the inner and outer walls of the connecting frame 41, a pushing plate 1 48 is fixedly mounted on the surface of the rotating rod 45, a pushing plate 2 49 is fixedly mounted on the surface of the rotating rod 45, and a rotating rod 45 is fixedly mounted on the surface of the rotating rod 45 There is a connecting plate 46, the connecting frame 41 is penetrated by a threaded rod 47 and the threaded rod 47 is threadedly connected to the connecting frame 41, the bottom of the threaded rod 47 is in contact with the connecting plate 46, a cavity is opened on the back of the No. 2 grinding plate 44, a transmission plate 410 is slidably sleeved at the bottom of the cavity, a two-way telescopic rod 411 is hingedly installed in the cavity through a bracket, a friction block 412 is slidably sleeved at the top of the cavity, a No. 1 spring is arranged between the No. 1 grinding plate 42 and the connecting frame 41, a No. 2 spring is arranged between the No. 2 grinding plate 44 and the fixed frame 43, a volute spring is arranged between the rotating rod 45 and the connecting frame 41, the bottoms of the No. 1 grinding plate 42 and the No. 2 grinding plate 44 are both arranged in an arc shape, the push plate 1 48 is in contact with the No. 1 grinding plate 42, and the push plate 2 49 is in contact with the No. 2 grinding plate The grinding plate 44 is in contact with the grinding plate 44, a No. 3 spring piece is arranged between the transmission plate 410 and the fixed frame 43, a No. 4 spring piece is arranged between the friction block 412 and the cavity, the free end of the two-way telescopic rod 411 is hinged with the transmission plate 410, and a protrusion is fixedly installed on the free end of the two-way telescopic rod 411, and the protrusion is in contact with the friction block 412, a support rod 51 is fixedly installed on the top of the base 1, an arc plate 52 is fixedly installed on the top of the support rod 51, a rotating plate 53 is slidably installed on the surface of the arc plate 52, a sleeve plate 531 is hinged on the top of the rotating plate 53, a tooth block 56 is fixedly installed on the surface of the rotating plate 53, a tooth block 56 is also installed on the sleeve plate 531, the tooth block 56 is meshed with the gear 55, and a slot is provided at one end of the sleeve plate 531 that is separated from the rotating plate 53 A groove is provided on the top of the rotating plate 53, and a positioning block 57 is slidably sleeved on the groove. A telescopic shaft 54 ​​is rotatably installed on the surface of the support rod 51, and a gear 55 is fixedly installed on the surface of the telescopic shaft 54. When the pipeline is placed inside the rotating plate 53, the pipeline can be restricted on the rotating plate 53 through the sleeve plate 531, and the moving plate 2 can be driven to move by the pushing device 3. The inner and outer walls of the pipeline are between the No. 1 grinding plate 42 and the No. 2 grinding plate 44, and the side of the pipeline will contact the friction block 412. The rotating plate 53 drives the pipeline to rotate so that the No. 1 grinding plate 42, the No. 2 grinding plate 44 and the friction block 412 can remove rust from the port of the pipeline. When the No. 1 grinding plate 42 and the No. 2 grinding plate 44 are worn and cannot fit on the pipeline,The first grinding plate 42 and the second grinding plate 44 can be adjusted by rotating the rotating rod 45 to prevent the first grinding plate 42 and the second grinding plate 44 from being worn and affecting the rust removal effect on the pipeline.

[0032] The arc plate 52 is provided with a protective device, which includes a limit frame 61, the limit frame 61 is fixedly installed at the bottom of the arc plate 52, a slide bar 62 is slidably installed inside the limit frame 61, the slide bar 62 slides up and down inside the limit frame 61, a No. 5 spring is provided between the slide bar 62 and the limit frame 61, a rotating disk 63 is rotatably installed on the left side of the slide bar 62, a pressure rod 64 is fixedly installed on the top of the slide bar 62, a piston 66 is slidably installed on the inner wall of the arc plate 52, a trapezoidal block 65 is fixedly installed on the left side of the piston 66, and the arc plate 5 2 is fixedly installed with an air jet tube, which is set in an arc shape, a sixth spring piece is set between the trapezoidal block 65 and the limit frame 61, a vibration detection device is set on the slide bar 62, and the vibration detection device includes a movable frame 71, the movable frame 71 is fixedly installed at the bottom of the slide bar 62, the bottom of the movable frame 71 is slidably sleeved with a movable rod 72, and a counterweight block 73 is fixedly installed at the bottom of the movable rod 72, a bell 74 is fixedly installed on the top of the base 1, a seventh spring piece is set between the movable rod 72 and the movable frame 71, and a vibration detection device is set on the left top of the trapezoidal block 65. The inclined surface is in contact with the pressure rod 64. When the pipeline is placed on the rotating plate 53, the pipeline can push the rotating plate 63 and the sliding rod 62 to move downward. When the sliding rod 62 moves downward, it can drive the pressure rod 64 to move downward. The pressure rod 64 can push the trapezoidal block 65 and the piston 66 to move. The movement of the piston 66 can squeeze the gas inside the arc plate 52 to be ejected from the jet pipe. The gas ejected from the jet pipe can first remove the waste residue on the rotating plate 53 to prevent the waste residue from remaining on the rotating plate 53 and causing the waste residue to scratch the pipeline, affecting the pipeline and the rotating plate 53. The friction between them prevents the rotating plate 53 from being unable to drive the pipe to rotate when the pipe slides on the rotating plate 53. When the rotating plate 53 and the sleeve plate 531 drive the pipe to rotate, the gap between the pipe and the rotating plate 53 may cause the pipe to vibrate between the rotating plate 53 and the sleeve plate 531. If the amplitude of the pipe vibration is too large, it will affect the smoothness of the grinding. When the vibration of the pipe is too large, the amplitude of the upward and downward movement of the rotating disk 63 and the counterweight block 73 will be larger, so that the counterweight block 73 will knock the bell 74, and the sound of the bell 74 can serve as a reminder.

[0033] The movable plate 2 is provided with a grinding control device, which includes a connecting rod 81, which is fixedly mounted on the left side of the movable plate 2, a winding shaft 82 is rotatably mounted on the surface of the connecting rod 81, and a rubber wheel is fixedly mounted on the end of the winding shaft 82 away from the connecting rod 81, a slide groove is provided on the left side of the movable plate 2, a sliding plate 83 is slidably mounted on the inner wall of the slide groove, a switch 84 is fixedly mounted on the left side of the sliding plate 83, the switch 84 is fixedly connected to the winding shaft 82 through a pull rope 85, and a No. 8 spring piece is arranged between the sliding plate 83 and the slide groove, a connecting plate 91 is fixedly mounted on the left side of the movable plate 2, a swinging plate 92 is hinged on the left side of the connecting plate 91, the movable plate 2 is penetrated by a baffle 93 and the baffle 93 is slidably sleeved on the movable plate 2, the swinging plate 92 is fixedly connected to the baffle 93 through a connecting rope 94, and the sliding plate 83 is connected to the swinging plate 92 is in contact, a No. 9 spring is arranged between the baffle plate 93 and the movable plate 2, the pull rope 85 is wound around the take-up shaft 82, and a volute spring is arranged between the take-up shaft 82 and the connecting rod 81. When the movable plate 2 moves, it can drive the connecting rod 81 to move, so that the rubber wheel will contact the pipe and roll inside the pipe, and the pipe will also push the sliding plate 83 to move, so that the sliding plate 83 can straighten the pull rope 85. When the pipe is over-polished, the movable plate 2 will continue to move, and the rubber wheel rolling through the pull rope 85 can pull the switch 84 to turn off the driving device to prevent the pipe from being over-polished. When the sliding plate 83 moves, it can push the swing plate 92 to rotate, and the swing plate 92 can pull the baffle plate 93 to move through the connecting rope 94. The movement of the baffle plate 93 can block the sparks generated during grinding, and the spark splashing is dangerous.

[0034] During operation (or use), when the port of the pipeline needs to be polished, the pipeline is placed on the rotating plate 53. Before the pipeline is placed on the rotating plate 53, the pipeline will push the rotating disk 63 to move downward. When the rotating disk 63 moves downward, it can drive the slide bar 62 and the pressure rod 64 to move downward. When the pressure rod 64 moves downward, it passes through the inclined surface on the trapezoidal block 65. The trapezoidal block 65 can push the piston 66 to move toward the inside of the arc plate 52. The movement of the piston 66 toward the inside of the arc plate 52 can squeeze the gas inside the arc plate 52 to be ejected from the jet pipe. The gas ejected from the jet pipe removes the waste residue on the rotating plate 53 to prevent the waste residue from remaining on the rotating plate 53. The downward movement of the slide bar 62 can drive the movable frame 71, the movable rod 72 and the counterweight block 73 to move downward. The sleeve plate 531 is rotated so that one end of the sleeve plate 531 away from the rotating plate 53 is inserted into the top groove of the rotating plate 53, and the blocking block 57 is pulled toward the outside of the rotating plate 53 so that the sleeve plate 531 completely enters the interior of the groove, and then the blocking block 57 is pushed toward the interior of the rotating plate 53 so that the blocking block 57 is inserted into the interior of the card slot of the sleeve plate 531, so that the rotating plate 53 and the sleeve plate 531 can be combined together, and the pipeline can be restricted between the rotating plate 53 and the sleeve plate 531. The moving plate 2 is driven to move by the pushing device 3, and the movement of the moving plate 2 can drive the No. 1 grinding plate 42 and the No. 2 grinding plate 44 to move, so that the inner and outer walls of the pipeline are between the No. 1 grinding plate 42 and the No. 2 grinding plate 44, and the friction block 412 contacts the pipeline, and the threaded rod 47 is rotated. The threaded rod 47 The rotating rod 45 can drive the connecting plate 46 to move upward through the volute spring, and the rotating rod 45 can drive the push plate 1 48 and the push plate 2 49 to move, so that the No. 1 spring drives the No. 1 grinding plate 42 to move downward, and the push plate 2 49 contacts the arc surface of the No. 2 grinding plate 44 to push the No. 2 grinding plate 44 to move upward, so that the No. 1 grinding plate 42 and the No. 2 grinding plate 44 are fitted together with the pipeline, and the connecting plate 46 can be rotated upward to push the transmission plate 410 to move upward, and the transmission plate 410 can push the two-way telescopic rod 411 to rotate, so that the No. 4 spring can drive the friction block 412 to move downward, and the position where the friction block 412 contacts the pipeline can be replaced. When the moving plate 2 moves, it can drive the connecting rod 81 and the winding shaft. 82, the rubber wheel and the sliding plate 83 move, so that the pipeline can push the sliding plate 83 to move, so that the rubber wheel can roll inside the pipeline, and the sliding plate 83 can straighten the pull rope 85 through the rotation of the rubber wheel and the winding shaft 82. When the sliding plate 83 moves, it can push the swing plate 92 to rotate. The swing plate 92 rotates and can pull the baffle plate 93 to move through the connecting rope 94, so that the baffle plate 93 moves in the direction of the No. 1 grinding plate 42. The telescopic shaft 54 ​​can be driven to rotate by the driving device, and the rotation of the telescopic shaft 54 ​​can drive the gear 55 to rotate. The rotation of the gear 55 can drive the rotating plate 53 and the sleeve plate 531 to rotate through the tooth block 56. The pipeline can be driven to rotate by the rotation of the rotating plate 53 and the sleeve plate 531.The rotation of the pipeline allows the No. 1 grinding plate 42, the No. 2 grinding plate 44 and the friction block 412 to remove rust from the port of the pipeline. When the rotating plate 53 and the sleeve plate 531 drive the pipeline to rotate, the vibration on the pipeline can be transmitted to the rotating disk 63, and the vibration of the rotating disk 63 can be transmitted to the counterweight block 73. When the amplitude of the up and down movement of the counterweight block 73 increases, the counterweight block 73 will knock on the bell 74, so that the bell 74 produces a sound to remind the staff. When the friction block 412 grinds the pipeline for too long, the pushing device 3 will drive the moving plate 2 to move, so that the rubber wheel will roll inside the pipeline, and the reel 82 will collect the straightened pull rope 85, so that the pull rope 85 will pull the switch 84 to turn off the driving device to avoid continuing to grind the pipeline. The baffle 93 can block the sparks generated during grinding to avoid the splash of sparks.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grinding device with the function of removing rust from the end of a metal pipe, comprising a base (1), characterized in that: A movable plate (2) is slidably mounted on the top of the base (1), a pushing device (3) is fixedly mounted on the top of the base (1), an output end of the pushing device (3) is fixedly connected to the movable plate (2), a connecting frame (41) is fixedly mounted on the surface of the movable plate (2), a first grinding plate (42) is slidably sleeved on the top of the connecting frame (41), a fixed frame (43) is fixedly mounted on the surface of the movable plate (2), a second grinding plate (44) is slidably sleeved on the top of the fixed frame (43), a rotating rod (45) is rotatably mounted on the inner and outer walls of the connecting frame (41), and the surface of the rotating rod (45) is A push plate 1 (48) is fixedly installed, a push plate 2 (49) is fixedly installed on the surface of the rotating rod (45), a connecting plate (46) is fixedly installed on the surface of the rotating rod (45), the connecting frame (41) is penetrated by a threaded rod (47) and the threaded rod (47) is threadedly connected to the connecting frame (41), the bottom of the threaded rod (47) is in contact with the connecting plate (46), a cavity is opened on the back of the second grinding plate (44), a transmission plate (410) is slidably sleeved on the bottom of the cavity, a bidirectional telescopic rod (411) is hingedly installed in the cavity through a bracket, and a friction block (412) is slidably sleeved on the top of the cavity; The free end of the bidirectional telescopic rod (411) is hinged to the transmission plate (410), and a convex block is fixedly mounted on the free end of the bidirectional telescopic rod (411), and the convex block is in contact with the friction block (412); A support rod (51) is fixedly mounted on the top of the base (1), an arc-shaped plate (52) is fixedly mounted on the top of the support rod (51), a rotating plate (53) is slidably mounted on the surface of the arc-shaped plate (52), a sleeve plate (531) is hingedly mounted on the top of the rotating plate (53), a tooth block (56) is fixedly mounted on the surface of the rotating plate (53), a slot is provided at one end of the sleeve plate (531) that is separated from the rotating plate (53), a groove is provided on the top of the rotating plate (53), a positioning block (57) is slidably sleeved on the groove, a telescopic shaft (54) is rotatably mounted on the surface of the support rod (51), and a gear (55) is fixedly mounted on the surface of the telescopic shaft (54); The arc-shaped plate (52) is provided with a protective device, which comprises a limit frame (61), the limit frame (61) is fixedly mounted on the bottom of the arc-shaped plate (52), a slide rod (62) is slidably mounted inside the limit frame (61), a rotating disk (63) is rotatably mounted on the left side of the slide rod (62), a pressure rod (64) is fixedly mounted on the top of the slide rod (62), a piston (66) is slidably mounted on the inner wall of the arc-shaped plate (52), a trapezoidal block (65) is fixedly mounted on the left side of the piston (66), and an air injection pipe is fixedly mounted on the right side of the arc-shaped plate (52); The slide bar (62) is provided with a vibration detection device, which comprises a movable frame (71), the movable frame (71) is fixedly mounted on the bottom of the slide bar (62), the bottom of the movable frame (71) is slidably sleeved with a movable bar (72), the bottom of the movable bar (72) is fixedly mounted with a counterweight (73), and the top of the base (1) is fixedly mounted with a bell (74); The left top of the trapezoidal block (65) is arranged as an inclined surface, and the inclined surface contacts the pressing rod (64); The movable plate (2) is provided with a grinding control device, which comprises a connecting rod (81), the connecting rod (81) is fixedly mounted on the left side of the movable plate (2), a winding shaft (82) is rotatably mounted on the surface of the connecting rod (81), a rubber wheel is fixedly mounted on the end of the winding shaft (82) away from the connecting rod (81), a sliding groove is provided on the left side of the movable plate (2), a sliding plate (83) is slidably mounted on the inner wall of the sliding groove, a switch (84) is fixedly mounted on the left side of the sliding plate (83), and the switch (84) is fixedly connected to the winding shaft (82) via a pull rope (85); A connecting plate (91) is fixedly installed on the left side of the movable plate (2), and a swinging plate (92) is hingedly connected to the left side of the connecting plate (91); the movable plate (2) is penetrated by a baffle (93) and the baffle (93) is slidably sleeved on the movable plate (2); the swinging plate (92) is fixedly connected to the baffle (93) via a connecting rope (94), and the sliding plate (83) is in contact with the swinging plate (92); The pull rope (85) is wound around the reel (82), and a spiral spring is provided between the reel (82) and the connecting rod (81); When the end of the pipeline needs to be polished, the pipeline is placed on the rotating plate (53). Before the pipeline is placed on the rotating plate (53), the pipeline pushes the rotating disk (63) to move downward. When the rotating disk (63) moves downward, the sliding rod (62) and the pressure rod (64) are driven to move downward. When the pressure rod (64) moves downward, it passes through the inclined surface on the trapezoidal block (65). The trapezoidal block (65) pushes the piston (66) to move inside the arc plate (52). The piston (66) moves inside the arc plate (52) to squeeze the gas inside the arc plate (52) to be ejected from the jet pipe. The gas ejected from the jet pipe removes the waste residue on the rotating plate (53) to prevent the waste residue from remaining on the rotating plate (53). The sliding rod (62) moves downward to drive the movable frame (71) and the movable rod (71). The sleeve plate (72) and the counterweight (73) are moved downward, and then the sleeve plate (531) is rotated so that the end of the sleeve plate (531) away from the rotating plate (53) is inserted into the top groove of the rotating plate (53), and the positioning block (57) is pulled toward the outside of the rotating plate (53) so that the sleeve plate (531) completely enters the interior of the groove, and then the positioning block (57) is pushed toward the interior of the rotating plate (53) so that the positioning block (57) is inserted into the slot of the sleeve plate (531), thereby merging the rotating plate (53) and the sleeve plate (531) together, and restricting the pipeline between the rotating plate (53) and the sleeve plate (531), and the moving plate (2) is driven to move by the pushing device (3), and the movement of the moving plate (2) drives the first grinding plate (42) and the second grinding plate (44) to move. , so that the inner and outer walls of the pipeline are located between the first grinding plate (42) and the second grinding plate (44), the friction block (412) contacts the pipeline, the threaded rod (47) is rotated, the threaded rod (47) moves upward, the rotating rod (45) drives the connecting plate (46) to move upward through the scroll spring, and the rotating rod (45) drives the push plate (48) and the push plate (49) to move, so that the first spring piece drives the first grinding plate (42) to move downward, the push plate (49) contacts the arc surface of the second grinding plate (44) to push the second grinding plate (44) to move upward, so that the first grinding plate (42) and the second grinding plate (44) are attached to the pipeline, the connecting plate (46) rotates upward to drive the transmission plate (410) to move upward, and the transmission plate ( 410) pushes the two-way telescopic rod (411) to rotate, so that the fourth spring piece drives the friction block (412) to move downward, and the position where the friction block (412) contacts the pipe is changed. When the movable plate (2) moves, it drives the connecting rod (81), the reel (82), the rubber wheel and the sliding plate (83) to move, so that the pipe pushes the sliding plate (83) to move, so that the inside of the pipe of the rubber wheel rolls, and the sliding plate (83) straightens the pull rope (85) through the rotation of the rubber wheel and the reel (82). When the sliding plate (83) moves, it pushes the swing plate (92) to rotate. The swing plate (92) rotates and pulls the baffle plate (93) to move through the connecting rope (94), so that the baffle plate (93) moves in the direction of the first grinding plate (42).The telescopic shaft (54) is driven to rotate by the driving device. The rotation of the telescopic shaft (54) drives the gear (55) to rotate. The rotation of the gear (55) drives the rotating plate (53) and the sleeve plate (531) to rotate through the tooth block (56). The rotation of the rotating plate (53) and the sleeve plate (531) drives the pipeline to rotate. The rotation of the pipeline causes the first grinding plate (42), the second grinding plate (44) and the friction block (412) to remove rust from the end of the pipeline. When the rotating plate (53) and the sleeve plate (531) drive the pipeline to rotate, the vibration on the pipeline is transmitted to the rotating disk (63). The vibration of the rotating disk (63) is transmitted to the counterweight. When the balance weight (73) moves up and down and the amplitude increases, the balance weight (73) will knock the bell (74), so that the bell (74) will produce a sound to remind the staff. When the friction block (412) grinds the pipeline for too long, the push device (3) will drive the moving plate (2) to move, so that the rubber wheel will roll inside the pipeline, so that the reel (82) will collect the straightened pull rope (85), so that the pull rope (85) will pull the switch (84) to turn off the driving device, so as to avoid continuing to grind the pipeline. The baffle (93) blocks the sparks generated during grinding, so as to avoid the splashing of sparks.

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