Automatic electric grinding device for industrial ventilation pipe

Abstract

The invention relates to the technical field of polishing equipment, and particularly discloses an industrial ventilation pipe automatic electric polishing device which comprises a machine table, a positioning mechanism, a moving mechanism, an extension arm, a rotating plate, a rotating plate, a rotating shaft and a polishing head. One end face of the bent pipe is attached to the top face of the machine table. The positioning mechanism is installed on the top face of the machine table and used for fixing the bent pipe. The extending arm is located on the top face of the machine table, and the moving mechanism is installed on the top face of the machine table and used for driving the extending arm to move. The rotating plate is rotationally connected to the end of the extension arm, and a rotating mechanism for driving the rotating plate to rotate is mounted at the end of the extension arm; a rotating mechanism for driving the rotating plate to rotate is mounted on the rotating plate; the rotating shaft is rotationally connected to the end of the rotating plate; the polishing head is mounted at the end of the rotating shaft; and a driving mechanism for driving the rotating shaft to rotate is mounted on the rotating plate. The polishing device has the effect of improving the polishing efficiency of the ventilation bent pipe.

Description

Technical Field

[0001] The invention relates to the technical field of polishing equipment, in particular to an automatic electric polishing device for industrial ventilation pipes. Background Art

[0002] The ventilation duct is an important device that connects the indoor and outdoor environments. Its main function is to exhaust indoor air and let in outdoor air to achieve the replacement of indoor and outdoor air.

[0003] There are two main structures involved in the production of ventilation pipes, one is a straight pipe and the other is a bent pipe. The straight pipe can be formed by bending the plate and then welding it into shape; the bent pipe is cut from the straight pipe, and the cut pipes are spliced ​​and welded into a bent pipe.

[0004] For welded pipes, there are often many burrs, rust stains and welding points on the inner and outer walls of the pipes. The burrs, rust stains and welding points on the outer wall of the pipes are easy to be polished off, while the burrs, rust stains and welding points on the inner wall of the pipes are more difficult to polish. For straight pipes, the grinding tool needs to be inserted into the pipe and rotated along the circumference of the inner wall of the pipe for grinding. It is more difficult to grind the inner wall of the bent pipe. Since the inner wall of the bent pipe has an arc and a bending degree, the grinding method of the straight pipe is not suitable for the bent pipe. At this time, the grinder needs to hold the grinding tool for grinding, and the grinding is slow. Sometimes, some pipes are large in size, and it is difficult for the grinder to insert the grinding tool into the inside of the bent pipe, which results in low grinding efficiency of the bent pipe. Summary of the invention

[0005] In order to improve the grinding efficiency of ventilation elbows, the present application provides an automatic electric grinding device for industrial ventilation pipes.

[0006] The present application provides an automatic electric grinding device for industrial ventilation pipes, which adopts the following technical solutions: An automatic electric grinding device for industrial ventilation pipes comprises a machine platform, a positioning mechanism, a moving mechanism, an extension arm, a rotating plate, a rotating plate, a rotating shaft and a grinding head; the machine platform is used to place bent pipes, and one end surface of the bent pipes is attached to the top surface of the machine platform; the positioning mechanism is installed on the top surface of the machine platform, and the positioning mechanism is used to fix the bent pipes; the extension arm is located on the top surface of the machine platform, and the moving mechanism is installed on the top surface of the machine platform, and the moving mechanism is used to drive the extension arm to move; the rotating plate is rotatably connected to the end of the extension arm, and a rotating mechanism for driving the rotating plate to rotate is installed at the end of the extension arm; a rotating mechanism for driving the rotating plate to rotate is installed on the rotating plate; the rotating shaft is rotatably connected to the end of the rotating plate, and the grinding head is installed at the end of the rotating shaft; and a driving mechanism for driving the rotating shaft to rotate is installed on the rotating plate.

[0007] Optionally, the driving mechanism includes a mounting plate, a driving motor, a first gear, a second gear and a third gear, one end of the mounting plate is connected to the end of the rotating plate away from the grinding head, the other end of the mounting plate is bent toward the grinding head, the driving motor is installed on the side of the mounting plate away from the rotating plate, the first gear is coaxially connected to the output shaft of the driving motor, the first gear is located between the mounting plate and the rotating plate, the second gear is rotatably connected to the side of the rotating plate away from the extension arm, the first gear and the second gear are meshed, the third gear is coaxially connected to the circumferential surface of the rotating shaft, and the third gear is meshed with the second gear.

[0008] Optionally, the rotating mechanism includes a rotating motor, a mounting seat and a connecting block, the rotating motor is mounted on the side of the rotating plate, the connecting block is connected to the output shaft of the rotating motor, the mounting seat is connected to the side of the rotating plate close to the extension arm, and the mounting seat is located at the end of the rotating plate away from the grinding head.

[0009] Optionally, the rotating mechanism includes a rotating motor, a fourth gear, a gear ring and a mounting ring, the end face of the extension arm close to the rotating plate is connected to two connecting plates, the mounting ring is connected to the outer circumference of the rotating motor, the outer circumference of the mounting ring is symmetrically connected to two rotating shafts, the two rotating shafts are respectively rotatably connected to the side faces of the two connecting plates close to each other; the rotating plate is connected to one of the rotating shafts at the center, and the inner circumference of the gear ring is connected to the circumference of the rotating plate; the rotating motor is installed on the side faces of one of the connecting plates, the fourth gear is coaxially connected to the output shaft of the rotating motor, and the fourth gear is meshed with the gear ring.

[0010] Optionally, the circumferential surface of the rotating shaft is connected to two symmetrically arranged limit bars, the circumferential surface of the rotating shaft is connected to a baffle, the baffle is located on the side of the third gear away from the extension arm, the grinding head sleeve is arranged on the outer circumferential surface of the rotating shaft, the inner wall of the grinding head is provided with a limit groove that cooperates with the limit bar, the end of the rotating shaft away from the extension arm is threadedly connected with a nut, and the nut is pressed tightly against the side of the grinding head.

[0011] Optionally, the positioning mechanism includes a first pushing assembly, a first curved plate, a second curved plate and a first lifting assembly. Three mounting grooves are provided on the top surface of the machine, and the three mounting grooves are evenly distributed around the circumference; three first pushing assemblies are provided, and the three first pushing assemblies are respectively installed in the three mounting grooves; three first curved plates are provided, and the three first curved plates are correspondingly installed on the top surfaces of the three mounting grooves, and the three first pushing assemblies respectively drive the three first curved plates, and the outer side surfaces of the first curved plates are attached to the inner wall of the end portion of the bent pipe; the second curved plate is located above the machine, and the first lifting assembly is installed on the top surface of the machine. The first lifting assembly is used to drive the second curved plate to rise and fall, and the second curved plate is attached to the outer peripheral surface of the top of the other end of the bent pipe.

[0012] Optionally, the first pushing assembly includes a first motor, a first screw and a first movable seat; the first motor is installed on the inner wall of the end of the installation groove, one end of the first screw is coaxially connected to the output shaft of the first motor, the first screw is rotatably connected in the installation groove, the first movable seat slides on the inner wall of the installation groove, the first screw is inserted into the first movable seat, and the first screw and the first movable seat are threadedly transmitted; the bottom ends of the three first arc plates are respectively connected to the top surfaces of the three first movable seats.

[0013] Optionally, the moving mechanism includes a second moving plate, a third moving plate, a fourth moving plate, a second pushing assembly, a third pushing assembly, a second vertical plate, a second lifting assembly and a rotor motor; the second pushing assembly is installed on the top surface of the machine, and the second pushing assembly is used to push the second moving plate to move; the third pushing assembly is installed on the top surface of the second moving plate, and the third pushing assembly is used to drive the third moving plate to move in a direction perpendicular to the moving direction of the second moving plate; the second vertical plate is installed on the top surface of the third moving plate, the second lifting assembly is installed on the side of the second vertical plate, the second lifting assembly is used to drive the fourth moving plate to rise and fall, the rotor motor is installed on the side of the fourth moving plate, and the end of the extension arm away from the grinding head is installed on the output shaft of the rotor motor.

[0014] Optionally, a sliding groove is provided on the side of the mounting seat away from the rotating plate for the connecting block to slide along the length direction of the rotating plate, sliding blocks are connected to both side surfaces of the connecting block, and sliding grooves are provided on both side walls of the sliding groove for the sliding blocks to slide; a spring sheet is provided in the sliding groove, one end of the spring sheet is pressed against the top surface of the connecting block, and the other end of the spring sheet is pressed against the inner wall of the end of the sliding groove close to the grinding head.

[0015] Optionally, a spring is arranged in the sliding groove, one end of the spring is pressed against the top surface of the sliding block, and the other end of the spring is pressed against the inner wall of the end of the sliding groove close to the grinding head; a pressure sensor is installed on the inner wall of the end of the sliding groove close to the grinding head, and the end of the spring is pressed against the surface of the pressure sensor.

[0016] In summary, the present application includes at least one of the following beneficial technical effects: 1. When it is necessary to grind the elbow, place one end of the elbow on the top surface of the machine, the positioning mechanism fixes the elbow, the moving mechanism drives the extension arm to extend into the other end of the elbow, the driving mechanism drives the grinding head to rotate, and the grinding head grinds the inner wall of the elbow; the rotating mechanism drives the rotating plate to rotate, and the rotating plate drives the rotating mechanism, the rotating plate and the grinding head to rotate to adjust the angle of the grinding head so that the grinding head fits the inner wall of the elbow, the rotating mechanism drives the rotating plate to rotate, and the rotating plate drives the grinding head to rotate, and the grinding head grinds the inner wall of the elbow for one circle, the moving mechanism cooperates with the rotating mechanism to make the grinding head fit the inner wall of the elbow, and grinds the inner wall of the elbow and the weld, without the need for the grinder to grind with hand-held tools, thereby improving the grinding efficiency of the ventilation elbow; 2. When the grinding head needs to be replaced, unscrew the nut and remove the grinding head from the rotating shaft; align the limit groove of the new grinding head with the limit bar, put the grinding head sleeve on the rotating shaft, make the grinding head fit the surface of the baffle, then screw on the nut and press the grinding head against the baffle, so that the grinding head is easy to replace; 3. The rotating plate is pressed against the surface of the spring piece through the side wall of the slide groove. At this time, the bottom surface of the connecting block contacts the inner wall of the end of the slide groove away from the grinding head. At this time, the spring has no pressure on the pressure sensor; when the grinding head is excessively squeezed by the inner wall of the bent pipe, the inner wall of the bent pipe pushes the grinding head, and the grinding head drives the rotating plate to move through the rotating shaft. The rotating plate compresses the spring. At this time, the connecting block slides in the slide groove, and the connecting block drives the sliding block to push the spring. The spring pushes the pressure sensor. The pressure sensor detects a signal, and the pressure sensor transmits the signal to the terminal. The terminal controls the third motor, the fourth motor, the fifth motor and the rotor motor to adjust the extension arm to keep uniform pressure between the grinding head and the inner wall of the bent pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of a grinding device according to an embodiment of the present application; Figure 2 is a schematic diagram of the structure of a grinding head according to an embodiment of the present application; Figure 3 is a schematic cross-sectional structure diagram of a grinding head and a mounting seat according to an embodiment of the present application; Figure 4 It is a partial structural schematic diagram of a grinding device according to an embodiment of the present application; Figure 5 It is a schematic diagram of the exploded structure of the moving mechanism of the embodiment of the present application.

[0018] Description of reference numerals: 1. Machine; 11. Mounting slot; 12. First vertical plate; 2. Positioning mechanism; 21. First pushing assembly; 211. First motor; 212. First screw; 213. First moving seat; 22. First curved plate; 23. Second curved plate; 24. First lifting assembly; 241. First linear guide; 242. First moving plate; 243. Second motor; 244. Second screw; 245. Second moving seat; 3. Moving mechanism; 31. Second moving plate; 32. Third moving plate; 33. Rotor motor; 34. Fourth moving plate; 35. Second pushing assembly; 351. Second linear guide; 352. Third motor; 353. Third screw; 354. Third moving seat; 36. Third pushing assembly; 361. Third linear guide; 362. Fourth motor; 363. Fourth screw; 364. Fourth moving seat; 37. Second vertical plate; 38. second lifting assembly; 381, fourth linear guide; 382, ​​fifth motor; 383, fifth screw; 384, fifth moving seat; 4, extension arm; 41, rotating plate; 42, rotating plate; 43, rotating shaft; 431, limiting strip; 432, nut; 433, baffle; 44, grinding head; 441, limiting groove; 45, connecting plate; 5, rotating mechanism; 51, rotating motor; 52, fourth gear; 53, gear ring; 54. Mounting ring; 541. Rotating shaft; 6. Rotating mechanism; 61. Rotating motor; 62. Mounting seat; 621. Slide groove; 622. Slide groove; 623. Shrapnel; 624. Spring; 625. Pressure sensor; 63. Connecting block; 631. Slide block; 7. Driving mechanism; 71. Mounting plate; 72. Driving motor; 73. First gear; 74. Second gear; 75. Third gear; 8. Bend pipe; 81. Weld. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-5 This application is described in further detail.

[0020] The present application embodiment discloses an automatic electric grinding device for industrial ventilation pipes. Figure 1-5 The bent pipe 8 is connected by four straight pipe sections, and two adjacent straight pipe sections are welded to form a weld 81.

[0021] The grinding device includes a machine 1, a positioning mechanism 2, a moving mechanism 3, an extension arm 4, a rotating plate 41, a rotating plate 42, a rotating shaft 43 and a grinding head 44; the machine 1 is used to place a bent pipe 8, and one end surface of the bent pipe 8 is attached to the top surface of the machine 1; the positioning mechanism 2 is installed on the top surface of the machine 1, and the positioning mechanism 2 is used to fix the bent pipe 8; the extension arm 4 is located on the top surface of the machine 1, and the moving mechanism 3 is installed on the top surface of the machine 1, and the moving mechanism 3 is used to drive the extension arm 4 to move; the rotating plate 41 is rotatably connected to the end of the extension arm 4, and a rotating mechanism 5 for driving the rotating plate 41 to rotate is installed at the end of the extension arm 4; a rotating mechanism 6 for driving the rotating plate 42 to rotate is installed on the rotating plate 41; the rotating shaft 43 is rotatably connected to the end of the rotating plate 42, and the grinding head 44 is installed at the end of the rotating shaft 43; a driving mechanism 7 for driving the rotating shaft 43 to rotate is installed on the rotating plate 42.

[0022] When it is necessary to grind the elbow 8, one end of the elbow 8 is placed on the top surface of the machine table 1, the positioning mechanism 2 fixes the elbow 8, the moving mechanism 3 drives the extension arm 4 to extend into the other end of the elbow 8, and the driving mechanism 7 drives the grinding head 44 to rotate, and the grinding head 44 grinds the inner wall of the elbow 8; the rotating mechanism 5 drives the rotating plate 41 to rotate, and the rotating plate 41 drives the rotating mechanism 6, the rotating plate 42 and the grinding head 44 to rotate to adjust the angle of the grinding head 44 so that the grinding head 44 fits the inner wall of the elbow 8, the rotating mechanism 6 drives the rotating plate 42 to rotate, and the rotating plate 42 drives the grinding head 44 to rotate, and the grinding head 44 grinds the inner wall of the elbow 8 for one circle, and the moving mechanism 3 cooperates with the rotating mechanism 6 to make the grinding head 44 fit the inner wall of the elbow 8, and grinds the inner wall of the elbow 8 and the weld 81, without the need for the grinder to use hand-held tools for grinding, thereby improving the grinding efficiency of the ventilation elbow 8.

[0023] The driving mechanism 7 includes a mounting plate 71, a driving motor 72, a first gear 73, a second gear 74 and a third gear 75. One end of the mounting plate 71 is connected to the end of the rotating plate 42 away from the grinding head 44, and the other end of the mounting plate 71 is bent 90° toward the grinding head 44. The driving motor 72 is installed on the side of the mounting plate 71 away from the rotating plate 42. The first gear 73 is coaxially connected to the output shaft of the driving motor 72. The first gear 73 is located between the mounting plate 71 and the rotating plate 42. The second gear 74 is rotatably connected to the side of the rotating plate 42 away from the extension arm 4. The first gear 73 is meshed with the second gear 74. The third gear 75 is coaxially connected to the circumferential surface of the rotating shaft 43, and the third gear 75 is meshed with the second gear 74.

[0024] When the grinding head 44 needs to be driven to rotate, the driving motor 72 drives the first gear 73 to rotate, the first gear 73 drives the second gear 74 to rotate, the second gear 74 drives the third gear 75 to rotate, the third gear 75 drives the rotating shaft 43 to rotate, and the rotating shaft 43 drives the grinding head 44 to rotate.

[0025] The rotating mechanism 6 includes a rotating motor 61, a mounting seat 62 and a connecting block 63. The rotating motor 61 is installed on the side of the rotating plate 41. The connecting block 63 is connected to the output shaft of the rotating motor 61. The mounting seat 62 is connected to the side of the rotating plate 42 close to the extension arm 4. The mounting seat 62 is located at the end of the rotating plate 42 away from the grinding head 44.

[0026] When the rotating plate 42 needs to be driven to rotate, the rotating motor 61 drives the connecting block 63 to rotate, the connecting block 63 drives the mounting seat 62 to rotate, and the mounting seat 62 drives the rotating plate 42 to rotate.

[0027] The rotating mechanism 5 includes a rotating motor 51, a fourth gear 52, a gear ring 53 and a mounting ring 54. The end surface of the extension arm 4 close to the rotating plate 42 is connected to two connecting plates 45. The mounting ring 54 is connected to the outer peripheral surface of the rotating motor 61. Two rotating shafts 541 are symmetrically connected to the outer peripheral surface of the mounting ring 54. The two rotating shafts 541 are respectively rotatably connected to the side surfaces of the two connecting plates 45 close to each other; the rotating plate 41 is a semicircular plate, and the center of the rotating plate 41 is connected to one of the rotating shafts 541. The gear ring 53 is a semicircular ring, and the inner peripheral surface of the gear ring 53 is connected to the peripheral surface of the rotating plate 41; the rotating motor 51 is installed on the side surface of one of the connecting plates 45, the fourth gear 52 is coaxially connected to the output shaft of the rotating motor 51, and the fourth gear 52 is meshed with the gear ring 53.

[0028] When it is necessary to drive the rotating motor 61 to rotate, the rotating motor 51 drives the fourth gear 52 to rotate, the fourth gear 52 drives the gear ring 53 to rotate around the axis of the rotating shaft 541, the gear ring 53 drives the rotating plate 41 to rotate, the rotating plate 41 drives the rotating shaft 541 to rotate, and the rotating shaft 541 drives the rotating motor 61 to rotate through the mounting ring 54.

[0029] The circumference of the rotating shaft 43 is connected to two symmetrically arranged limit strips 431, and the circumference of the rotating shaft 43 is connected to a baffle 433, which is located on the side of the third gear 75 away from the extension arm 4. The grinding head 44 is sleeved on the outer circumference of the rotating shaft 43, and the inner wall of the grinding head 44 is provided with a limit groove 441 that cooperates with the limit strip 431. The end of the rotating shaft 43 away from the extension arm 4 is threadedly connected with a nut 432, and the nut 432 is pressed tightly against the side of the grinding head 44.

[0030] When the grinding head 44 needs to be replaced, unscrew the nut 432 and remove the grinding head 44 from the rotating shaft 43; align the limiting groove 441 of the new grinding head 44 with the limiting bar 431, and sleeve the grinding head 44 on the rotating shaft 43 so that the grinding head 44 fits the surface of the baffle 433, and then screw on the nut 432 to press the grinding head 44 onto the baffle 433.

[0031] The positioning mechanism 2 includes a first pushing component 21, a first curved plate 22, a second curved plate 23 and a first lifting component 24. Three mounting grooves 11 are arranged on the top surface of the machine 1, and the three mounting grooves 11 are evenly distributed around the circumference; three first pushing components 21 are arranged, and the three first pushing components 21 are respectively installed in the three mounting grooves 11; three first curved plates 22 are arranged, and the three first curved plates 22 are correspondingly installed on the top surfaces of the three mounting grooves 11, and the three first pushing components 21 respectively drive the three first curved plates 22, and the outer side surface of the first curved plate 22 is attached to the inner wall of the end of the bent pipe 8; the second curved plate 23 is located above the machine 1, and the first lifting component 24 is installed on the top surface of the machine 1. The first lifting component 24 is used to drive the second curved plate 23 to rise and fall, and the second curved plate 23 is attached to the outer peripheral surface of the top of the other end of the bent pipe 8.

[0032] When the bent pipe 8 needs to be fixed, one end of the bent pipe 8 is sleeved on the three first curved plates 22, the first pushing component 21 pushes the three first curved plates 22 to separate, the outer wall of the first curved plate 22 fits against the inner wall of the bent pipe 8, the first lifting component 24 drives the second curved plate 23 to rise and fall, the second curved plate 23 descends, and is pressed against the top outer peripheral surface of the other end of the bent pipe 8, so that the bent pipe 8 can be fixed.

[0033] The first pushing assembly 21 includes a first motor 211, a first screw 212 and a first moving seat 213; the first motor 211 is installed on the inner wall of the end of the installation groove 11, one end of the first screw 212 is coaxially connected to the output shaft of the first motor 211, the first screw 212 is rotatably connected to the installation groove 11, the first moving seat 213 slides on the inner wall of the installation groove 11, the first screw 212 is penetrated in the first moving seat 213, and the first screw 212 and the first moving seat 213 are threadedly transmitted; the bottom ends of the three first arc-shaped plates 22 are respectively connected to the top surfaces of the three first moving seats 213.

[0034] When it is necessary to drive the three first curved plates 22 to move, the first motor 211 drives the first screw 212 to rotate, the first screw 212 drives the first moving seat 213 to move, and the first moving seat 213 can drive the first curved plate 22 to move, and the three first pushing components 21 synchronously adjust the first curved plates 22, and the three first curved plates 22 position the bent pipe 8.

[0035] The first lifting assembly 24 includes a first linear guide 241, a first movable plate 242, a second motor 243, a second screw 244 and a second movable seat 245; the first vertical plate 12 is installed on the top surface of the machine 1, the first linear guide 241 is installed on the side of the first vertical plate 12, and the first movable plate 242 is installed on the surface of the slider of the first linear guide 241; the second motor 243 is installed on the top of the first vertical plate 12, the second screw 244 is coaxially connected to the output shaft of the second motor 243, and the second screw 244 is rotatably connected to the side of the first vertical plate 12; the second movable seat 245 is connected to the side of the first movable plate 242 close to the first vertical plate 12, the second screw 244 passes through the second movable seat 245 and is threaded; the second arc plate 23 is installed on the bottom surface of the end of the first movable plate 242.

[0036] When it is necessary to drive the second curved plate 23 to rise and fall, the second motor 243 drives the second screw 244 to rotate, the second screw 244 drives the second moving seat 245 to rise and fall, the second moving seat 245 drives the first moving plate 242 to rise and fall, the first moving plate 242 rises and falls on the first linear guide rail 241, and the first moving plate 242 drives the second curved plate 23 to rise and fall.

[0037] The moving mechanism 3 includes a second moving plate 31, a third moving plate 32, a fourth moving plate 34, a second pushing assembly 35, a third pushing assembly 36, a second vertical plate 37, a second lifting assembly 38 and a rotor motor 33; the second pushing assembly 35 is installed on the top surface of the machine 1, and the second pushing assembly 35 is used to push the second moving plate 31 to move; the third pushing assembly 36 is installed on the top surface of the second moving plate 31, and the third pushing assembly 36 is used to drive the third moving plate 32 to move in a direction perpendicular to the moving direction of the second moving plate 31; the second vertical plate 37 is installed on the top surface of the third moving plate 32, the second lifting assembly 38 is installed on the side of the second vertical plate 37, the second lifting assembly 38 is used to drive the fourth moving plate 34 to rise and fall, the rotor motor 33 is installed on the side of the fourth moving plate 34, and the end of the extension arm 4 away from the grinding head 44 is installed on the output shaft of the rotor motor 33.

[0038] When it is necessary to drive the extension arm 4 to move, the second pushing component 35 drives the second movable plate 31 to move along the Y-axis direction, and the extension arm 4 moves in the Y-axis direction; the third pushing component 36 drives the third movable plate 32 to move along the X-axis direction, and the extension arm 4 moves in the X-axis direction; the second lifting component 38 drives the fourth movable plate 34 to be lifted and lowered in the Z-axis direction, and the extension arm 4 can be lifted and lowered in the Z-axis direction; the rotor motor 33 drives the extension arm 4 to rotate along the Y-axis axis, so as to move the extension arm 4 and adjust the angle.

[0039] The second pushing assembly 35 includes a second linear guide 351, a third motor 352, a third screw 353 and a third moving seat 354. The second linear guide 351 is installed on the top surface of the machine 1. The bottom surface of the second moving plate 31 is connected to the top surface of the slider of the second linear guide 351. The third motor 352 is installed on the top surface of the machine 1. The end of the third screw 353 is connected to the output shaft of the third motor 352. The third screw 353 is rotatably connected to the top surface of the machine 1; the third moving seat 354 is connected to the bottom surface of the second moving plate 31, the third screw 353 passes through the third moving seat 354, and the third screw 353 and the third moving seat 354 are threadedly transmitted.

[0040] When the second movable plate 31 needs to be driven to move, the third motor 352 drives the third screw rod 353 to rotate, and the third screw rod 353 drives the third movable seat 354 to move, and the third movable seat 354 can drive the second movable plate 31 .

[0041] The third pushing assembly 36 includes a third linear guide 361, a fourth motor 362, a fourth screw 363 and a fourth moving seat 364. The third linear guide 361 is installed on the top surface of the machine 1. The bottom surface of the third moving plate 32 is connected to the top surface of the slider of the third linear guide 361. The fourth motor 362 is installed on the top surface of the machine 1. The end of the fourth screw 363 is connected to the output shaft of the fourth motor 362. The fourth screw 363 is rotatably connected to the top surface of the machine 1. The fourth moving seat 364 is connected to the bottom surface of the third moving plate 32. The fourth screw 363 passes through the fourth moving seat 364. The fourth screw 363 and the fourth moving seat 364 are threadedly transmitted.

[0042] When the third movable plate 32 needs to be driven to move, the fourth motor 362 drives the fourth screw rod 363 to rotate, and the fourth screw rod 363 drives the fourth movable seat 364 to move, and the fourth movable seat 364 can drive the third movable plate 32 .

[0043] The second lifting assembly 38 includes a fourth linear guide 381, a fifth motor 382, ​​a fifth screw 383 and a fifth movable seat 384; the fourth linear guide 381 is installed on the side of the second vertical plate 37, the fourth movable plate 34 is connected to the slider surface of the fourth linear guide 381, the fifth motor 382 is installed on the top of the second vertical plate 37, one end of the fifth screw 383 is connected to the output shaft of the fifth motor 382, ​​the fifth screw 383 is rotatably connected to the side of the second vertical plate 37, the fifth movable seat 384 is connected to the side of the fourth movable plate 34, the fifth screw 383 passes through the fifth movable seat 384, and the fifth screw 383 and the fifth movable seat 384 are threadedly transmitted.

[0044] When the fourth movable plate 34 needs to be driven to move up and down, the fifth motor 382 drives the fifth screw 383 to rotate, and the fifth screw 383 drives the fifth movable seat 384 to move up and down, and the fifth movable seat 384 can drive the fourth movable plate 34 to move up and down.

[0045] A sliding groove 621 is provided on the side of the mounting seat 62 away from the rotating plate 42 for the connecting block 63 to slide along the length direction of the rotating plate 42, and sliding blocks 631 are connected to the two side surfaces of the connecting block 63, and sliding grooves 622 are provided on the two side walls of the sliding groove 621 for the sliding blocks 631 to slide; a spring 623 is provided in the sliding groove 621, one end of the spring 623 is pressed against the top surface of the connecting block 63, and the other end of the spring 623 is pressed against the inner wall of the end of the sliding groove 621 close to the grinding head 44; a spring 624 is provided in the sliding groove 622, one end of the spring 624 is pressed against the top surface of the sliding block 631, and the other end of the spring 624 is pressed against the inner wall of the end of the sliding groove 622 close to the grinding head 44; a pressure sensor 625 is installed on the inner wall of the end of the sliding groove 622 close to the grinding head 44, and the end of the spring 624 is pressed against the surface of the pressure sensor 625.

[0046] The rotating plate 42 is pressed against the surface of the spring piece 623 through the side wall of the slide groove 621. At this time, the bottom surface of the connecting block 63 contacts the inner wall of the end of the slide groove 621 away from the grinding head 44. At this time, the spring 624 has no pressure on the pressure sensor 625; when the grinding head 44 is excessively squeezed by the inner wall of the curved pipe 8, the inner wall of the curved pipe 8 pushes the grinding head 44, and the grinding head 44 drives the rotating plate 42 to move through the rotating shaft 43. The rotating plate 42 compresses the spring piece 623. At this time, the connecting block 63 slides in the slide groove 621, and the connecting block 63 drives the sliding block 631 to push the spring 624. The spring 624 pushes the pressure sensor 625. The pressure sensor 625 detects a signal, and the pressure sensor 625 transmits the signal to the terminal. The terminal controls the third motor 352, the fourth motor 362, the fifth motor 382 and the rotor motor 33 to adjust the extension arm 4 so that the grinding head 44 and the inner wall of the curved pipe 8 maintain uniform pressure.

[0047] The implementation principle of an automatic electric grinding device for industrial ventilation pipes in the embodiment of the present application is as follows: when it is necessary to grind the elbow 8, one end of the elbow 8 is placed on the top surface of the machine platform 1, the positioning mechanism 2 fixes the elbow 8, the moving mechanism 3 drives the extension arm 4 to extend into the other end of the elbow 8, the driving mechanism 7 drives the grinding head 44 to rotate, and the grinding head 44 grinds the inner wall of the elbow 8; the rotating mechanism 5 drives the rotating plate 41 to rotate, and the rotating plate 41 drives the rotating mechanism 6, the rotating plate 42 and the grinding head 44 to rotate to adjust the angle of the grinding head 44 so that the grinding head 44 fits the inner wall of the elbow 8, the rotating mechanism 6 drives the rotating plate 42 to rotate, and the rotating plate 42 drives the grinding head 44 to rotate, and the grinding head 44 grinds the inner wall of the elbow 8 for one circle, the moving mechanism 3 cooperates with the rotating mechanism 6 to make the grinding head 44 fit the inner wall of the elbow 8, and grinds the inner wall of the elbow 8 and the weld 81, without the need for the grinding personnel to hold tools for grinding, thereby improving the grinding efficiency of the ventilation elbow 8.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automatic electric grinding device for industrial ventilation pipes, characterized in that: The machine comprises a machine platform (1), a positioning mechanism (2), a moving mechanism (3), an extension arm (4), a rotating plate (41), a rotating plate (42), a rotating shaft (43) and a grinding head (44); the machine platform (1) is used to place a bent pipe (8), and one end surface of the bent pipe (8) is attached to the top surface of the machine platform (1); the positioning mechanism (2) is installed on the top surface of the machine platform (1), and the positioning mechanism (2) is used to fix the bent pipe (8); the extension arm (4) is located on the top surface of the machine platform (1), the moving mechanism (3) is installed on the top surface of the machine platform (1), and the moving mechanism (3) is used to drive The extension arm (4) moves; the rotating plate (41) is rotationally connected to the end of the extension arm (4), and the end of the extension arm (4) is equipped with a rotating mechanism (5) for driving the rotating plate (41) to rotate; the rotating plate (41) is equipped with a rotating mechanism (6) for driving the rotating plate (42) to rotate; the rotating shaft (43) is rotationally connected to the end of the rotating plate (42), and the grinding head (44) is installed at the end of the rotating shaft (43); the rotating plate (42) is equipped with a driving mechanism (7) for driving the rotating shaft (43) to rotate.

2. The automatic electric grinding device for industrial ventilation pipes according to claim 1 is characterized by: The driving mechanism (7) comprises a mounting plate (71), a driving motor (72), a first gear (73), a second gear (74) and a third gear (75); one end of the mounting plate (71) is connected to the end of the rotating plate (42) away from the grinding head (44); the other end of the mounting plate (71) is bent toward the grinding head (44); the driving motor (72) is mounted on the side of the mounting plate (71) away from the rotating plate (42); the first gear (73) is coaxially connected to the output shaft of the driving motor (72); the first gear (73) is located between the mounting plate (71) and the rotating plate (42); the second gear (74) is rotatably connected to the side of the rotating plate (42) away from the extension arm (4); the first gear (73) and the second gear (74) are meshed; the third gear (75) is coaxially connected to the circumferential surface of the rotating shaft (43); the third gear (75) is meshed with the second gear (74).

3. The automatic electric grinding device for industrial ventilation pipes according to claim 1 is characterized by: The rotating mechanism (6) comprises a rotating motor (61), a mounting seat (62) and a connecting block (63); the rotating motor (61) is mounted on a side of the rotating plate (41); the connecting block (63) is connected to an output shaft of the rotating motor (61); the mounting seat (62) is connected to a side of the rotating plate (42) close to the extension arm (4); and the mounting seat (62) is located at an end of the rotating plate (42) away from the grinding head (44).

4. The automatic electric grinding device for industrial ventilation pipes according to claim 3 is characterized by: The rotating mechanism (5) comprises a rotating motor (51), a fourth gear (52), a gear ring (53) and a mounting ring (54); the end surface of the extension arm (4) close to the rotating plate (42) is connected to two connecting plates (45); the mounting ring (54) is connected to the outer peripheral surface of the rotating motor (61); the outer peripheral surface of the mounting ring (54) is symmetrically connected to two rotating shafts (541); the two rotating shafts (541) are respectively rotatably connected to the side surfaces of the two connecting plates (45) close to each other; the center of the rotating plate (41) is connected to one of the rotating shafts (541); the inner peripheral surface of the gear ring (53) is connected to the peripheral surface of the rotating plate (41); the rotating motor (51) is installed on the side surface of one of the connecting plates (45); the fourth gear (52) is coaxially connected to the output shaft of the rotating motor (51); the fourth gear (52) is meshed with the gear ring (53).

5. The automatic electric grinding device for industrial ventilation pipes according to claim 2 is characterized by: The circumferential surface of the rotating shaft (43) is connected to two symmetrically arranged limit strips (431), and the circumferential surface of the rotating shaft (43) is connected to a baffle (433), and the baffle (433) is located on the side of the third gear (75) away from the extension arm (4). The grinding head (44) is sleeved on the outer circumferential surface of the rotating shaft (43), and the inner wall of the grinding head (44) is provided with a limit groove (441) that cooperates with the limit strip (431). The end of the rotating shaft (43) away from the extension arm (4) is threadedly connected to a nut (432), and the nut (432) is pressed tightly against the side of the grinding head (44).

6. The automatic electric grinding device for industrial ventilation pipes according to claim 1 is characterized by: The positioning mechanism (2) comprises a first pushing component (21), a first curved plate (22), a second curved plate (23) and a first lifting component (24); the top surface of the platform (1) is provided with three mounting grooves (11), and the three mounting grooves (11) are evenly distributed around a circumference; three first pushing components (21) are provided, and the three first pushing components (21) are respectively installed in the three mounting grooves (11); three first curved plates (22) are provided, and the three first curved plates (22) are correspondingly installed in the three The three first pushing components (21) respectively drive the three first arc plates (22) on the top surface of the installation groove (11), and the outer side surfaces of the first arc plates (22) are in contact with the inner wall of the end of the curved pipe (8); the second arc plate (23) is located above the machine platform (1), and the first lifting component (24) is installed on the top surface of the machine platform (1), and the first lifting component (24) is used to drive the second arc plate (23) to rise and fall, and the second arc plate (23) is in contact with the outer peripheral surface of the top of the other end of the curved pipe (8).

7. The automatic electric grinding device for industrial ventilation pipes according to claim 6 is characterized by: The first pushing component (21) comprises a first motor (211), a first screw rod (212) and a first moving seat (213); the first motor (211) is installed on the inner wall of the end of the installation groove (11); one end of the first screw rod (212) is coaxially connected to the output shaft of the first motor (211); the first screw rod (212) is rotatably connected in the installation groove (11); the first moving seat (213) slides on the inner wall of the installation groove (11); the first screw rod (212) is inserted into the first moving seat (213); the first screw rod (212) and the first moving seat (213) are threadedly driven; the bottom ends of the three first arc-shaped plates (22) are respectively connected to the top surfaces of the three first moving seats (213).

8. The automatic electric grinding device for industrial ventilation pipes according to claim 1 is characterized by: The moving mechanism (3) comprises a second moving plate (31), a third moving plate (32), a fourth moving plate (34), a second pushing assembly (35), a third pushing assembly (36), a second vertical plate (37), a second lifting assembly (38) and a rotor motor (33); the second pushing assembly (35) is mounted on the top surface of the machine platform (1), and the second pushing assembly (35) is used to push the second moving plate (31) to move; the third pushing assembly (36) is mounted on the top surface of the second moving plate (31), and the third pushing assembly (36) is used to push the second moving plate (31) to move; Used to drive the third movable plate (32) to move in a direction perpendicular to the moving direction of the second movable plate (31); the second vertical plate (37) is installed on the top surface of the third movable plate (32), the second lifting assembly (38) is installed on the side of the second vertical plate (37), the second lifting assembly (38) is used to drive the fourth movable plate (34) to rise and fall, the rotor motor (33) is installed on the side of the fourth movable plate (34), and the end of the extension arm (4) away from the grinding head (44) is installed on the output shaft of the rotor motor (33).

9. The automatic electric grinding device for industrial ventilation pipes according to claim 3 is characterized by: A sliding groove (621) is provided on the side of the mounting seat (62) away from the rotating plate (42) for the connecting block (63) to slide along the length direction of the rotating plate (42), and sliding blocks (631) are connected to both side surfaces of the connecting block (63), and sliding grooves (622) are provided on both side walls of the sliding groove (621) for the sliding blocks (631) to slide; a spring sheet (623) is provided in the sliding groove (621), one end of the spring sheet (623) is pressed against the top surface of the connecting block (63), and the other end of the spring sheet (623) is pressed against the inner wall of the end of the sliding groove (621) close to the grinding head (44).

10. The automatic electric grinding device for industrial ventilation pipes according to claim 9, characterized in that: A spring (624) is arranged in the sliding groove (622), one end of the spring (624) is pressed against the top surface of the sliding block (631), and the other end of the spring (624) is pressed against the inner wall of the end of the sliding groove (622) close to the grinding head (44); a pressure sensor (625) is installed on the inner wall of the end of the sliding groove (622) close to the grinding head (44), and the end of the spring (624) is pressed against the surface of the pressure sensor (625).

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