Fire-fighting smoke exhaust pipeline welding equipment

Abstract

The invention discloses fire-fighting smoke exhaust pipeline welding equipment, and belongs to the technical field of pipeline welding.The fire-fighting smoke exhaust pipeline welding equipment comprises a bottom plate, a pair of first sliding rails are fixedly connected to the upper surface of the bottom plate, and a pipeline fixing frame is slidably connected to the pair of first sliding rails; the upper surface of the bottom plate is fixedly connected with a pair of fixing bases, one fixing base is fixedly connected with a pair of fourth hydraulic rods, and the ends, away from the fixing bases, of the fourth hydraulic rods are fixedly connected with a pipeline fixing frame. Welding operation is conducted through the welding mechanism, after welding is completed, a first hydraulic rod drives a first moving base to move, the welding seam of the pipeline is moved to the grinding mechanism, a coating is knocked out through the grinding mechanism, and the welding seam is ground through a grinding disc; and redundant welding slag, welding protruding parts, oxides and uneven surfaces generated in the welding process are removed, so that the quality, the appearance and the structural performance of a pipeline welding joint are ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of pipeline welding, and in particular relates to a fire smoke exhaust pipeline welding device. Background Art

[0002] Fire smoke exhaust pipes are an important part of the building fire protection system. They are mainly used to discharge smoke, toxic gases and high-temperature gases generated in the fire area out of the building when a fire occurs, ensure the safety of the evacuation passage, protect the lives of personnel, and help firefighters to extinguish the fire. Fire smoke exhaust pipes are usually made of galvanized steel pipes. During the production process, welding work is required to firmly connect different pipe sections together through welding processes to ensure the sealing and stability of the system and avoid leakage or failure of the pipes due to loose welding.

[0003] Most of the existing welding operations are performed by workers holding electric welding guns. Due to the thin thickness of galvanized steel pipes, workers are required to control the single welding time to avoid the electric welding gun temperature from being too high and welding through the steel pipe. At the same time, the welding gun needs to be swung during the welding process to improve the welding quality, which requires a high level of welding proficiency among workers. For unskilled workers, the welding operation of fire smoke exhaust pipes is not only inefficient but also easy to weld through the pipes, resulting in low yield rate. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the disadvantages of the above-mentioned prior art and provide a fire smoke exhaust pipe welding device.

[0005] The technical solution adopted to solve the above technical problems is: a fire smoke exhaust pipe welding device, comprising a bottom plate, a pair of first slide rails are fixedly connected to the upper surface of the bottom plate, a pipe fixing frame is slidably connected to the pair of first slide rails, a pair of fixed bases are fixedly connected to the upper surface of the bottom plate, one of the fixed bases is fixedly connected to a pair of fourth hydraulic rods, and one end of the pair of fourth hydraulic rods away from the fixed base is fixedly connected to the pipe fixing frame; One of the fixed bases is provided with a welding mechanism, and the other fixed base is provided with a grinding mechanism, and the welding mechanism and the grinding mechanism are both fixedly connected with a conductive rod, and the fixed base includes a first base fixedly connected to the upper surface of the base plate, both ends of the first base are fixedly connected with a second fixed plate, and the second fixed plate is fixedly connected with a second hydraulic rod, and the end of the second hydraulic rod away from the second fixed plate is fixedly connected to a movable half ring, and the movable half ring is fixedly connected with a bracket, and the end of the bracket away from the movable half ring is fixedly connected with a half gear ring.

[0006] Through the above technical solution, by using the pipe fixing frame, the first hydraulic rod pushes the fixing ring to clamp and fix the pipe, and then the welding operation is performed through the welding mechanism. When the welding is completed, the first hydraulic rod drives the first movable seat to move, so that the weld of the pipe is moved to the grinding mechanism, the coating is knocked off by the grinding mechanism and the weld is grinded by the grinding disc to remove excess welding slag, welding protrusions, oxides and uneven surfaces generated during the welding process, so as to ensure the quality, appearance and structural performance of the pipe welding joint.

[0007] Furthermore, the pipe fixing frame includes a first movable seat slidably connected to a first slide rail, a pair of first fixed plates are fixedly connected at both ends of the first movable seat, a first hydraulic rod is fixedly connected to the first fixed plate, an end of the first hydraulic rod away from the first fixed plate is fixedly connected to a fixing ring, and a buffer anti-slip pad is fixedly connected inside the fixing ring.

[0008] Through the above technical solution, the first hydraulic rod pushes the fixing ring, and the fixing ring moves inward to clamp and fix the pipeline, and the use of the buffer anti-skid pad prevents the pipeline from slipping.

[0009] Furthermore, both ends of the first base are fixedly connected to a third fixed plate, a pair of first sliding rods are fixedly connected to the movable semi-ring, the first sliding rods penetrate and slide through the third fixed plate, a first groove is provided on the side of the movable semi-ring close to the half gear ring, a first conductive ring and a second conductive ring are fixedly connected in the first groove, and second grooves are provided on both sides of the half gear ring.

[0010] Through the above technical solution, the welding mechanism and the grinding mechanism can be rotated around the pipeline, so that the pipeline can be processed in all aspects.

[0011] Furthermore, the conductive rod includes a connecting rod fixedly connected to the welding mechanism, the connecting rod slidingly cooperates with the first groove, the upper and lower sides of the connecting rod are fixedly connected to a third spring, the third spring is fixedly connected to a conductive sheet, and the conductive sheet is electrically connected to the first conductive ring and the second conductive ring respectively.

[0012] Through the above technical solution, the third spring pushes the conductive sheet to be close to the first conductive ring and the second conductive ring, so that power is supplied to the welding mechanism and the grinding mechanism through the conductive rod.

[0013] Furthermore, the welding mechanism includes a second movable seat slidably connected to the half gear ring, a limiting guide rail is fixedly connected inside the second movable seat, the limiting guide rail and the second groove slideably cooperate with each other, a first motor is fixedly connected to the second movable seat, an output end of the first motor is fixedly connected to a first gear, the first gear and the half gear ring are meshed with each other, a fixed rod is fixedly connected inside the second movable seat, a rotating roller is provided on the outer sleeve of the fixed rod, second gears are fixedly connected to both ends of the rotating roller, the second gear and the first gear are meshed with each other, and a first slide groove is provided on the rotating roller.

[0014] Through the above technical solution, the first motor drives the first gear to rotate, and the first gear cooperates with the half gear ring, thereby driving the second movable seat to rotate around the pipe. At this time, the first gear drives the second gear to rotate, and the second gear drives the rotating roller to rotate. The first slide groove on the rotating roller drives the first slider to move back and forth, and the first slider drives the third movable seat to move back and forth along the limiting guide rail through the connecting block, thereby driving the electric welding gun to move back and forth through the elastic fixed frame, and performing a welding operation that rotates and swings at the same time, thereby more accurately imitating the manual welding operation of workers.

[0015] The cam is connected with the second sliding seat at the upper end thereof to the second sliding seat, and the cam is connected with the second sliding seat at the lower end thereof to the second sliding seat, and the cam is connected with the second sliding seat at the lower end thereof to the second sliding seat.

[0016] Through the above technical solution, when the elastic fixing frame moves back and forth, the second slider moves in the second slide groove, so that the second slider drives the elastic fixing frame to move up and down, thereby preventing the electric welding gun from contacting the pipe wall for too long and causing welding through the pipe wall.

[0017] Furthermore, the grinding mechanism includes a fourth movable seat slidably connected to the half gear ring, the fourth movable seat is fixedly connected to a second motor, the output end of the second motor is fixedly connected to a third gear, the third gear and the half gear ring are meshed with each other, the fourth movable seat is slidably connected to a lifting slide rod, the lower end of the lifting slide rod is fixedly connected to a first fixed frame, the outer sleeve of the lifting slide rod is provided with a second spring, the first fixed frame is rotatably connected to a first roller, the first fixed frame is fixedly connected to a striking hammer, the half gear ring is fixedly connected to a protrusion, and the first roller and the protrusion are squeezed and matched with each other.

[0018] Through the above technical solution, the second motor drives the third gear to rotate, and the third gear cooperates with the half gear ring to drive the fourth movable seat to rotate around the pipe. At this time, with the movement of the fourth movable seat, the first roller moves along the surface of the protrusion, and at the same time the second spring pushes the first fixed frame to move downward, so that the first fixed frame drives the striking hammer head to continuously hammer the weld to knock off the coating.

[0019] Furthermore, a third hydraulic rod is fixedly connected to the fourth movable seat, the lower end of the third hydraulic rod is fixedly connected to a second fixed frame, the second fixed frame is fixedly connected to a third motor, the output end of the third motor is fixedly connected to a grinding disc, the second fixed frame is rotatably connected to a pair of rotating rods, the rotating rods are rotatably connected to a rotating block, the rotating block is slidably connected to a screw rod, both ends of the screw rod are threaded with nuts, and the end of the rotating rod away from the third motor is rotatably connected to the second roller.

[0020] Through the above technical solution, the third hydraulic rod drives the second fixed frame to move downward, and the third motor drives the grinding disc to rotate, and the grinding disc grinds the weld. During the downward movement of the second fixed frame, the second roller is close to the surface of the pipe wall, pushing the rotating rod to open outward until it is blocked by the nut, thereby controlling the descending height of the grinding disc to avoid grinding through the pipe, thereby greatly improving the grinding quality.

[0021] The beneficial effects of the present invention are as follows: (1) The present invention uses a pipe fixing frame, and pushes a fixing ring through a first hydraulic rod to clamp and fix the pipe, and then performs welding operation through a welding mechanism. When welding is completed, the first hydraulic rod drives the first movable seat to move, so that the weld of the pipe is moved to the grinding mechanism, and the coating is knocked off by the grinding mechanism and the weld is polished by a grinding disc to remove excess welding slag, welding protrusions, oxides and uneven surfaces generated during the welding process, so as to ensure the quality, appearance and structural performance of the pipe welding joint; (2) The present invention uses a welding mechanism, and when welding is performed, the first motor drives the first gear to rotate, and the first gear cooperates with the half gear ring to drive the second movable seat to move in an annular manner. At this time, the first gear drives the second gear to rotate, and the second gear drives the rotating roller to rotate. The rotating roller is connected to the first slide groove and the second slide groove through the first slide groove. A slider cooperates to drive the third movable seat to move back and forth, so that the electric welding gun reciprocates while moving around the pipe. At the same time, the cooperation of the second slide groove and the second slider drives the electric welding gun to move up and down, so as to imitate the operation of a worker. On the one hand, it can avoid the electric welding gun from contacting the pipe for too long and welding through the pipe wall. At the same time, the reciprocating welding gun can improve the welding quality; (3) The present invention uses a grinding mechanism. When the second motor drives the third gear to rotate, the third gear drives the fourth movable seat to move. At this time, the first roller is pushed by the protrusion and the second spring on the lifting slide rod to make the striking hammer head reciprocate up and down to knock off the coating on the weld. Then, the second fixed frame is pushed downward by the third hydraulic rod, so that the third motor drives the grinding disc to rotate to grind the weld. By using the rotating rod and the screw nut, the descending height of the grinding disc can be controlled, thereby improving the grinding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a first perspective structural diagram of the present invention; Figure 2 It is a top view of the structure of the present invention; Figure 3 It is a second viewing angle structural diagram of the present invention; Figure 4 It is a partial exploded structural diagram of the present invention; Figure 5 It is a three-dimensional diagram of the welding mechanism and the grinding mechanism of the present invention; Figure 6 is a cross-sectional view of the welding mechanism and the grinding mechanism of the present invention; Figure 7 yes Figure 6 A magnified image of point A; Figure 8 is a three-dimensional diagram of the welding mechanism of the present invention; Fig. 9 is a cross-sectional view of the welding mechanism of the present invention; Fig.10 yes Fig. 9The enlarged view of point B; Fig.11 It is the internal structure diagram of the welding mechanism of the present invention; Fig.12 It is a structural diagram of the grinding mechanism of the present invention; Fig.13 It is a three-dimensional diagram of the grinding mechanism of the present invention.

[0023] 1. Bottom plate; 2. First slide rail; 3. Pipe fixing frame; 31. First moving seat; 32. First fixing plate; 33. First hydraulic rod; 34. Fixing ring; 35. Buffering anti-skid pad; 4. Fixed base; 41. First base; 42. Second fixing plate; 43. Third fixing plate; 44. Second hydraulic rod; 45. First sliding rod; 46. Moving semi-ring; 47. Bracket; 48. Semi-gear ring; 49. First groove; 410. First conductive ring; 411. Second conductive ring; 412. Second groove; 5. Welding mechanism; 51. Second moving seat; 52. Limiting guide rail; 53. First motor; 54. First gear; 55. Fixing rod; 56. Rotating roller; 57. Second gear; 58. First slide groove; 59. First slider; 510. Connecting block; 511. Third moving seat; 512, second slide rail; 513, second slide bar; 514, first spring; 515, elastic fixing frame; 516, second slide block; 517, locking bolt; 518, electric welding gun; 519, fourth fixing plate; 520, second slide groove; 6, grinding mechanism; 61, fourth moving seat; 62, second motor; 63, third gear; 64, lifting slide bar; 65, second spring; 66, first fixing frame; 67, first roller; 68, striking hammer; 69, third hydraulic rod; 610, second fixing frame; 611, third motor; 612, grinding disc; 613, rotating rod; 614, screw rod; 615, nut; 616, second roller; 617, bump; 618, rotating block; 7, fourth hydraulic rod; 8, conductive rod; 81, connecting rod; 82, third spring; 83, conductive sheet. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] like Figure 1-Figure 13 As shown, a fire smoke exhaust pipe welding device of this embodiment includes a base plate 1, a pair of first slide rails 2 fixedly connected to the upper surface of the base plate 1, a pair of fourth hydraulic rods 7 fixedly connected to a fixed base 4, and one end of the pair of fourth hydraulic rods 7 away from the fixed base 4 is fixedly connected to the pipe fixing frame 3. The fourth hydraulic rods 7 drive the first movable seat 31 to move, so that the weld moves to the grinding mechanism 6.

[0026] like Figure 4 As shown, a pair of first slide rails 2 are slidably connected with a pipe fixing frame 3, and the pipe fixing frame 3 includes a first movable seat 31 slidably connected to the first slide rails 2, and both ends of the first movable seat 31 are fixedly connected with a pair of first fixing plates 32, and a first hydraulic rod 33 is fixedly connected to the first fixing plate 32, and the end of the first hydraulic rod 33 away from the first fixing plate 32 is fixedly connected with a fixing ring 34, and a buffer anti-skid pad 35 is fixedly connected inside the fixing ring 34. The first hydraulic rod 33 pushes the fixing ring 34, and the fixing ring 34 moves inward to clamp and fix the pipe, and the use of the buffer anti-skid pad 35 prevents the pipe from slipping.

[0027] like Figure 5-Figure 7 As shown, a pair of fixed bases 4 are fixedly connected to the upper surface of the bottom plate 1, and the fixed base 4 includes a first base 41 fixedly connected to the upper surface of the bottom plate 1, and both ends of the first base 41 are fixedly connected to the second fixed plates 42, and the second fixed plates 42 are fixedly connected to the second hydraulic rods 44, and the end of the second hydraulic rod 44 away from the second fixed plate 42 is fixedly connected to a movable semi-ring 46, and a bracket 47 is fixedly connected to the movable semi-ring 46, and the end of the bracket 47 away from the movable semi-ring 46 is fixedly connected to a semi-toothed ring 48, and the second hydraulic rod 44 pushes the movable semi-ring 46 to move inward, and the movable semi-ring 46 moves along the first sliding rod 45, and the movable semi-ring 46 and the semi-toothed ring 48 are closed into a ring, and this ring is concentrically arranged with the pipeline.

[0028] Both ends of the first base 41 are fixedly connected with the third fixed plate 43, and a pair of first sliding rods 45 are fixedly connected to the movable semi-ring 46. The first sliding rods 45 penetrate and slide through the third fixed plate 43. A first groove 49 is provided on the side of the movable semi-ring 46 close to the half gear ring 48, and a first conductive ring 410 and a second conductive ring 411 are fixedly connected in the first groove 49. Second grooves 412 are provided on both sides of the half gear ring 48, and the third spring 82 pushes the conductive sheet 83 to be close to the first conductive ring 410 and the second conductive ring 411, so as to supply power to the welding mechanism 5 and the grinding mechanism 6 through the conductive rod 8.

[0029] like Figure 8 , Fig. 9 and Fig.11As shown, a welding mechanism 5 is provided on one of the fixed bases 4, and the welding mechanism 5 includes a second movable seat 51 slidably connected to the half gear ring 48, a limited position guide rail 52 is fixedly connected inside the second movable seat 51, and the limited position guide rail 52 and the second groove 412 are slidably matched with each other, a first motor 53 is fixedly connected to the second movable seat 51, and a first gear 54 is fixedly connected to the output end of the first motor 53, and the first gear 54 and the half gear ring 48 are meshed with each other, and a fixed rod 55 is fixedly connected inside the second movable seat 51, and the fixed rod 55 has a sleeve A rotating roller 56 is provided, and both ends of the rotating roller 56 are fixedly connected with a second gear 57. The second gear 57 and the first gear 54 mesh with each other. A first slide groove 58 is provided on the rotating roller 56. The first motor 53 drives the first gear 54 to rotate. The first gear 54 cooperates with the half gear ring 48, thereby driving the second movable seat 51 to rotate around the pipeline. At this time, the first gear 54 drives the second gear 57 to rotate, and the second gear 57 drives the rotating roller 56 to rotate. The first slide groove 58 on the rotating roller 56 drives the first slider 59 to reciprocate.

[0030] A pair of second slide rails 512 are fixedly connected to the upper end of the second moving seat 51, and a third moving seat 511 is slidably connected to the second slide rails 512. A connecting block 510 is fixedly connected to the lower end of the third moving seat 511, and a first slider 59 is fixedly connected to the lower end of the connecting block 510. The first slider 59 and the first slide groove 58 slide and cooperate with each other. A second slide rod 513 is slidably connected through the third moving seat 511, and a first spring 514 is sleeved on the second slide rod 513. The end of the first spring 514 away from the third moving seat 511 is fixedly connected to the second moving seat 51, and an elastic fixing frame 515 is fixedly connected to the third moving seat 511. An electric welding gun 518 is fixedly connected to the elastic fixing frame 515. A locking bolt 517 is provided at one end of the elastic fixing frame 515 away from the third moving seat 511. A fourth fixed plate 519 is fixedly connected, and a second slide groove 520 is provided on the fourth fixed plate 519. Second sliders 516 are fixedly connected to both sides of the elastic fixed frame 515. The second slider 516 and the second slide groove 520 slide and cooperate with each other. The elastic fixed frame 515 is fixedly connected to the third movable seat 511 through an elastic metal sheet. The first slider 59 drives the third movable seat 511 to reciprocate along the limiting guide rail 52 through the connecting block 510, thereby driving the electric welding gun 518 to reciprocate through the elastic fixed frame 515 to perform a welding operation of rotating and swinging at the same time. At the same time, when the elastic fixed frame 515 reciprocates, the second slider 516 moves in the second slide groove 520, so that the second slider 516 drives the elastic fixed frame 515 to move up and down, so as to prevent the electric welding gun 518 from contacting the pipe wall for too long and causing welding through the pipe wall.

[0031] like Fig.12 and Fig.13As shown, a grinding mechanism 6 is provided on another fixed base 4, and the grinding mechanism 6 includes a fourth movable seat 61 slidably connected to the half gear ring 48, a second motor 62 is fixedly connected to the fourth movable seat 61, an output end of the second motor 62 is fixedly connected to a third gear 63, the third gear 63 and the half gear ring 48 are meshed with each other, a lifting slide rod 64 is slidably connected to the fourth movable seat 61, a first fixed frame 66 is fixedly connected to the lower end of the lifting slide rod 64, a second spring 65 is provided on the outer sleeve of the lifting slide rod 64, and a first roller 67 is rotatably connected to the first fixed frame 66 A striking hammer 68 is fixedly connected to the first fixed frame 66, a protrusion 617 is fixedly connected to the half gear ring 48, the first roller 67 and the protrusion 617 are squeezed and matched with each other, the second motor 62 drives the third gear 63 to rotate, and the third gear 63 cooperates with the half gear ring 48 to drive the fourth movable seat 61 to rotate around the pipeline. At this time, as the fourth movable seat 61 moves, the first roller 67 moves along the surface of the protrusion 617, and at the same time, the second spring 65 pushes the first fixed frame 66 to move downward, so that the first fixed frame 66 drives the striking hammer 68 to continuously hammer the weld to knock off the coating.

[0032] The fourth movable seat 61 is fixedly connected to a third hydraulic rod 69, the lower end of the third hydraulic rod 69 is fixedly connected to a second fixed frame 610, the second fixed frame 610 is fixedly connected to a third motor 611, the output end of the third motor 611 is fixedly connected to a grinding disc 612, the second fixed frame 610 is rotatably connected to a pair of rotating rods 613, the rotating rods 613 are rotatably connected to a rotating block 618, the rotating block 618 is slidably connected to a screw rod 614, both ends of the screw rod 614 are threadedly connected to nuts 615, and the rotating rod 613 is away from the third motor 6 One end of 11 is rotatably connected to the second roller 616, the third hydraulic rod 69 drives the second fixed frame 610 to move downward, and the third motor 611 drives the grinding disc 612 to rotate, and the grinding disc 612 grinds the weld. During the downward movement of the second fixed frame 610, the second roller 616 is close to the surface of the pipe wall, pushing the rotating rod 613 to open outward until it is blocked by the nut 615, so that the descending height of the grinding disc 612 can be controlled to avoid grinding through the pipe, greatly improving the grinding quality, and the descending height of the grinding disc 612 can be changed by adjusting the position of the nut 615.

[0033] like Fig.10 As shown, the welding mechanism 5 and the grinding mechanism 6 are both fixedly connected with a conductive rod 8, and the conductive rod 8 includes a connecting rod 81 fixedly connected to the welding mechanism 5, and the connecting rod 81 is slidably matched with the first groove 49. The upper and lower sides of the connecting rod 81 are fixedly connected with a third spring 82, and the third spring 82 is fixedly connected with a conductive sheet 83. The conductive sheet 83 is electrically connected to the first conductive ring 410 and the second conductive ring 411 respectively. Through the action of the third spring 82, the conductive sheet 83 is always in close contact with the first conductive ring 410 and the second conductive ring 411.

[0034] The working principle of this embodiment is as follows: first, align the two pipes and place them on the pipe fixing frame 3, push the fixing ring 34 through the first hydraulic rod 33, and the fixing ring 34 moves inward to clamp and fix the pipes, and use the buffer anti-skid pad 35 to prevent the pipes from slipping.

[0035] The third spring 82 pushes the conductive sheet 83 to be close to the first conductive ring 410 and the second conductive ring 411, so as to supply power to the welding mechanism 5 and the grinding mechanism 6 through the conductive rod 8. Meanwhile, the second hydraulic rod 44 pushes the moving half ring 46 inward, and the moving half ring 46 moves along the first slide rod 45, closing the moving half ring 46 and the half gear ring 48 into a ring, which is concentrically arranged with the pipeline. Start the first motor 53, the first motor 53 drives the first gear 54 to rotate, the first gear 54 cooperates with the half gear ring 48, thereby driving the second movable seat 51 to rotate around the pipe. At this time, the first gear 54 drives the second gear 57 to rotate, the second gear 57 drives the rotating roller 56 to rotate, the first slide groove 58 on the rotating roller 56 drives the first slider 59 to reciprocate, the first slider 59 drives the third movable seat 511 to reciprocate along the limiting guide rail 52 through the connecting block 510, thereby driving the electric welding gun 518 to reciprocate through the elastic fixing frame 515, and performing a welding operation of rotating and swinging at the same time, so as to more accurately imitate the manual welding operation of workers.

[0036] At the same time, when the elastic fixing frame 515 moves back and forth, the second slider 516 moves in the second slide groove 520, so that the second slider 516 drives the elastic fixing frame 515 to move up and down, thereby preventing the electric welding gun 518 from contacting the pipe wall for too long and causing welding through the pipe wall.

[0037] When the welding operation is completed, the fourth hydraulic rod 7 drives the first movable seat 31 to move, so that the weld is moved to the grinding mechanism 6. At this time, the second motor 62 drives the third gear 63 to rotate, and the third gear 63 cooperates with the half gear ring 48 to drive the fourth movable seat 61 to rotate around the pipe. At this time, with the movement of the fourth movable seat 61, the first roller 67 moves along the surface of the protrusion 617. At the same time, the second spring 65 pushes the first fixed frame 66 to move downward, so that the first fixed frame 66 drives the knocking hammer 68 to continuously hammer the weld to knock off the coating.

[0038] Afterwards, the third hydraulic rod 69 drives the second fixed frame 610 to move downward, and the third motor 611 drives the grinding disc 612 to rotate. The grinding disc 612 grinds the weld. During the downward movement of the second fixed frame 610, the second roller 616 is close to the surface of the pipe wall, pushing the rotating rod 613 to open outward until it is blocked by the nut 615, so that the descending height of the grinding disc 612 can be controlled to avoid grinding through the pipe, greatly improving the grinding quality. The descending height of the grinding disc 612 can be changed by only adjusting the position of the nut 615.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A fire smoke exhaust pipe welding device, comprising a bottom plate (1), characterized in that: A pair of first slide rails (2) are fixedly connected to the upper surface of the base plate (1), a pipe fixing frame (3) is slidably connected to the pair of first slide rails (2), a pair of fixed bases (4) are fixedly connected to the upper surface of the base plate (1), one of the fixed bases (4) is fixedly connected to a pair of fourth hydraulic rods (7), and one end of the pair of fourth hydraulic rods (7) away from the fixed base (4) is fixedly connected to the pipe fixing frame (3); A welding mechanism (5) is provided on one of the fixed bases (4), and a grinding mechanism (6) is provided on the other fixed base (4); the welding mechanism (5) and the grinding mechanism (6) are both fixedly connected to a conductive rod (8); the fixed base (4) comprises a first base (41) fixedly connected to the upper surface of the bottom plate (1); both ends of the first base (41) are fixedly connected to a second fixed plate (42); the second fixed plate (42) is fixedly connected to a second hydraulic rod (44); one end of the second hydraulic rod (44) away from the second fixed plate (42) is fixedly connected to a movable semi-ring (46); the movable semi-ring (46) is fixedly connected to a bracket (47); and one end of the bracket (47) away from the movable semi-ring (46) is fixedly connected to a semi-gear ring (48).

2. A fire smoke exhaust pipe welding equipment according to claim 1, characterized in that: The pipe fixing frame (3) comprises a first movable seat (31) slidably connected to a first slide rail (2); a pair of first fixing plates (32) are fixedly connected to both ends of the first movable seat (31); a first hydraulic rod (33) is fixedly connected to the first fixing plate (32); an end of the first hydraulic rod (33) away from the first fixing plate (32) is fixedly connected to a fixing ring (34); and a buffer anti-slip pad (35) is fixedly connected inside the fixing ring (34).

3. A fire smoke exhaust pipe welding equipment according to claim 1, characterized in that: Both ends of the first base (41) are fixedly connected to a third fixed plate (43); a pair of first sliding rods (45) are fixedly connected to the movable semi-ring (46); the first sliding rods (45) penetrate and are slidably connected to the third fixed plate (43); a first groove (49) is provided on a side of the movable semi-ring (46) close to the semi-gear ring (48); a first conductive ring (410) and a second conductive ring (411) are fixedly connected in the first groove (49); and second grooves (412) are provided on both sides of the semi-gear ring (48).

4. A fire smoke exhaust pipe welding device according to claim 3, characterized in that: The conductive rod (8) comprises a connecting rod (81) fixedly connected to the welding mechanism (5), the connecting rod (81) slidably cooperates with the first groove (49), the upper and lower sides of the connecting rod (81) are fixedly connected to third springs (82), the third spring (82) is fixedly connected to a conductive sheet (83), and the conductive sheet (83) is electrically connected to the first conductive ring (410) and the second conductive ring (411), respectively.

5. The fire smoke exhaust pipe welding equipment according to claim 3 is characterized in that: The welding mechanism (5) comprises a second movable seat (51) slidably connected to the half gear ring (48); a limiting guide rail (52) is fixedly connected inside the second movable seat (51); the limiting guide rail (52) and the second groove (412) are slidably matched with each other; a first motor (53) is fixedly connected to the second movable seat (51); an output end of the first motor (53) is fixedly connected to a first gear (54); the first gear (54) and the half gear ring (48) are meshed with each other; a fixed rod (55) is fixedly connected inside the second movable seat (51); a rotating roller (56) is provided on an outer sleeve of the fixed rod (55); both ends of the rotating roller (56) are fixedly connected to a second gear (57); the second gear (57) and the first gear (54) are meshed with each other; and a first sliding groove (58) is provided on the rotating roller (56).

6. A fire smoke exhaust pipe welding device according to claim 5, characterized in that: A pair of second slide rails (512) are fixedly connected to the upper end of the second movable seat (51), and a third movable seat (511) is slidably connected to the second slide rails (512). A connecting block (510) is fixedly connected to the lower end of the third movable seat (511), and a first sliding block (59) is fixedly connected to the lower end of the connecting block (510). The first sliding block (59) and the first sliding groove (58) are slidably matched with each other. A second sliding rod (513) is slidably connected through the third movable seat (511), and a first spring (514) is sleeved on the second sliding rod (513). One end of the first spring (514) away from the third movable seat (511) is fixedly connected to the second movable seat (51). The movable seat (511) is fixedly connected to an elastic fixing frame (515), an electric welding gun (518) is fixedly connected inside the elastic fixing frame (515), a locking bolt (517) is provided at one end of the elastic fixing frame (515) away from the third movable seat (511), the second movable seat (51) is fixedly connected to a fourth fixing plate (519), a second sliding groove (520) is provided on the fourth fixing plate (519), both sides of the elastic fixing frame (515) are fixedly connected to second sliding blocks (516), the second sliding blocks (516) and the second sliding grooves (520) are slidably matched with each other, and the elastic fixing frame (515) is fixedly connected to the third movable seat (511) via an elastic metal sheet.

7. A fire smoke exhaust pipe welding device according to claim 3, characterized in that: The grinding mechanism (6) comprises a fourth movable seat (61) slidably connected to the half gear ring (48); a second motor (62) is fixedly connected to the fourth movable seat (61); an output end of the second motor (62) is fixedly connected to a third gear (63); the third gear (63) and the half gear ring (48) are meshed with each other; a lifting slide rod (64) is slidably connected to the fourth movable seat (61); a first fixed frame (66) is fixedly connected to the lower end of the lifting slide rod (64); a second spring (65) is disposed on the outer sleeve of the lifting slide rod (64); a first roller (67) is rotatably connected to the first fixed frame (66); a striking hammer (68) is fixedly connected to the first fixed frame (66); a protrusion (617) is fixedly connected to the half gear ring (48); the first roller (67) and the protrusion (617) are pressed and matched with each other.

8. A fire smoke exhaust pipe welding device according to claim 7, characterized in that: The fourth movable seat (61) is fixedly connected to a third hydraulic rod (69), the lower end of the third hydraulic rod (69) is fixedly connected to a second fixed frame (610), the second fixed frame (610) is fixedly connected to a third motor (611), the output end of the third motor (611) is fixedly connected to a grinding disc (612), the second fixed frame (610) is rotatably connected to a pair of rotating rods (613), the rotating rods (613) are rotatably connected to rotating blocks (618), the rotating blocks (618) are slidably connected to a lead screw (614), both ends of the lead screw (614) are threadedly connected to nuts (615), and one end of the rotating rod (613) away from the third motor (611) is rotatably connected to a second roller (616).

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