Descaling machine header welding device and method

Abstract

The invention relates to the technical field of welding, and provides a descaling machine header welding device and method.The descaling machine header welding device comprises a base and further comprises a supporting mechanism, a plurality of clamping assemblies and a welding mechanism, the supporting mechanism is used for supporting a main pipe, and the clamping assemblies are used for clamping branch pipes; the clamping assembly comprises a lifting plate, a fixing plate and two clamping plates, the lifting plate is movably arranged on the base in a liftable mode, the fixing plate is movably arranged on the lifting plate, the branch pipe is located between the two clamping plates, and the welding mechanism is used for welding the branch pipe and the main pipe. The welding mechanism comprises a rotating frame and a welding head, the rotating frame is rotatably arranged on the fixing plate, and the rotating center of the rotating frame coincides with the axis of the branch pipe. By means of the technical scheme, the problem that in the prior art, a single branch pipe is welded at a time, and the welding efficiency is low is solved.

Description

Technical Field

[0001] The invention relates to the technical field of welding, and in particular to a descaling machine header welding device and method. Background Art

[0002] Descaling refers to the removal of iron oxide to prevent it from being pressed into the surface and causing defects, thereby improving the surface quality of the product. The main tools are descaling machines and high-pressure water. The header is a common component in the dephosphorization machine. It not only provides a flow path for the liquid, but also can provide multiple outlets, similar to a large branch pipe joint. The header needs to be welded during the production and processing process.

[0003] Traditionally, the welding of headers is mostly done manually. With the development of technology, various automatic welding machines are gradually used to replace manual labor. However, most of the current welding devices only weld one branch pipe to the main pipe at a time for the welding of headers, and the pipes need to be welded circumferentially, and the position of the pipes or the welding heads needs to be frequently changed. This welding method has low welding efficiency. Therefore, we propose a descaling machine header welding device and method, which can weld multiple branch pipes at the same time with high welding efficiency. Summary of the invention

[0004] The invention provides a descaling machine header welding device and method, which solves the problem of low welding efficiency in the related art of welding a single branch pipe at a time.

[0005] The technical solution of the present invention is as follows: A descaling machine header welding device comprises a base and also includes: A supporting mechanism, the supporting mechanism is used to support the main pipe, and the supporting mechanism includes: A support plate, wherein two support plates are provided, the support plates are slidably connected to the base, and the two support plates move relative to each other; Fixed support rods, two of which are fixedly connected to the support plate; A movable support rod, a movable block is movably provided on the support plate, two movable support rods are fixedly connected to the movable block, and the main pipe is located between the fixed support rod and the movable support rod; A clamping assembly, wherein a plurality of clamping assemblies are provided for clamping the branch pipe, and the clamping assembly comprises: A lifting plate, which is liftable and movably arranged on the base; A fixed plate, the fixed plate being movably arranged on the lifting plate; A clamping plate, wherein two clamping plates are provided, and the clamping plates are movably arranged on the fixed plate, and the branch pipe is located between the two clamping plates; A welding mechanism, which is used to weld the branch pipe and the main pipe, and comprises: A rotating frame, the rotating frame is rotatably arranged on the fixed plate, and the rotation center of the rotating frame coincides with the axis center of the branch pipe; A welding head is movably arranged on the rotating frame.

[0006] In order to realize the synchronous rotation of the plurality of rotating racks, a driving mechanism is further included, and the driving mechanism is used to drive the rotating racks to rotate, and the driving mechanism includes: A driving shaft, the driving shaft being rotatably disposed on the lifting plate; A moving seat, the moving seat is slidably connected to the lifting plate, the moving seat and the driving shaft are in sliding cooperation, and the fixing plate is fixedly connected to the moving seat; A driving bevel gear, the driving bevel gear is rotatably connected to the moving seat, and the driving bevel gear and the driving shaft are in sliding fit; The driven bevel gear is rotatably connected to the moving seat via a rotating shaft, the rotating frame is fixedly connected to the rotating shaft, and the driven bevel gear is meshed with the driving bevel gear.

[0007] In order to fix the position of the moving seat and the branch pipe, a limiting component is also included, and the limiting component is used to fix the position of the moving seat. The limiting component includes: A limit plate, the limit plate is fixedly connected to the movable seat; A limiting screw is threadedly connected to the limiting plate, and the limiting screw is in contact with the lifting plate.

[0008] In order to further ensure the stability of the main pipe, an auxiliary support plate is movably arranged on the base, and the auxiliary support plate is in contact with the bottom end of the main pipe.

[0009] In order to realize the relative movement of the two support plates, a clamping mechanism is also included, and the clamping mechanism is used to drive the support plates to clamp the main pipe, and the clamping mechanism includes: A bidirectional screw is rotatably arranged on the base, and two support plates are symmetrically arranged outside the bidirectional screw and threadably matched with two thread segments of the bidirectional screw.

[0010] In order to facilitate determination of the position of the branch pipe, a scale is provided on the lifting plate, and a pointer is fixedly connected to the moving seat.

[0011] In order to ensure that the axis centers of the branch pipe and the rotating shaft coincide, one end of the clamping plate close to the branch pipe is fixedly connected with two clamping blocks, and the clamping blocks are wedge-shaped.

[0012] In order to improve the stability of the main pipe, a plurality of anti-sliding blocks are fixedly connected to the ends of the two support plates that are close to each other.

[0013] A descaling machine header welding method, using the above-mentioned descaling machine header welding device, comprises the following steps: S1. Place the main pipe on top of the fixed rod, and rotate the bidirectional screw to drive the two support plates to move closer to each other to clamp the main pipe; S2, placing the branch pipe between two clamping plates, the two clamping plates approach each other to clamp the branch pipe, and the axis of the branch pipe coincides with the axis of the rotating shaft; S3. The lifting plate drives the branch pipe to rise to the height corresponding to the main pipe, adjusts the position of the moving seat so that the branch pipe corresponds to the subjective welding position, tightens the locking screw to fix the position of the moving seat and the branch pipe, and moves the lifting plate so that the welding position on the branch pipe and the main pipe fits together; S4, the welding head moves to the welding position, and the rotating frame drives the welding head to rotate to weld the branch pipe and the main pipe; S5. The clamping plate is away from the branch pipe, and the support plate is away from the main pipe. Remove the dephosphorization machine header after welding and proceed with subsequent welding.

[0014] The working principle and beneficial effects of the present invention are: 1. In the present invention, the main pipe is clamped and supported by the support plate and the support rod, the branch pipe is clamped by the clamping plate, and the welding positions on the branch pipe and the main pipe correspond by moving the movable seat and lifting and moving the lifting plate, which can adapt to the welding of dephosphorization machine headers of different sizes and models.

[0015] 2. In the present invention, the driving shaft drives multiple driving bevel gears to rotate synchronously, driving the driven bevel gears and the rotating frame to rotate. Multiple welding heads weld multiple branch pipes at the same time, thereby improving the welding efficiency. At the same time, the movable seat moves along the driving shaft, and the rotating frame can be driven while adapting to the welding of branch pipes at different positions.

[0016] 3. Therefore, compared with the pipe collecting welding device in the prior art, the present invention can clamp multiple branch pipes at the same time by setting up multiple clamping components, and drive the welding head to rotate through the rotating frame, so that the branch pipes and the main pipe are in a fixed state for circumferential welding, which is suitable for welding multiple branch pipes in different positions at the same time, greatly improving the welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Figure 1 It is a structural schematic diagram of the first viewing angle of the present invention; Figure 2 It is a structural schematic diagram of the second viewing angle of the present invention; Figure 3 It is a schematic diagram of the structure of the clamping assembly, welding mechanism and driving mechanism of the present invention; Figure 4 It is a structural schematic diagram of the clamping assembly and the welding mechanism of the present invention; Figure 5 It is a schematic structural diagram of the movable seat, the driving bevel gear, the driven bevel gear and the fixed shaft of the present invention; Figure 6 For the present invention Figure 1 A schematic diagram of the local enlarged structure at point A in the middle; Figure 7 For the present invention Figure 2 Schematic diagram of the local enlarged structure at point B in the middle.

[0019] In the figure: 1. Base; 2. Auxiliary support plate; 3. Electric cylinder 2; 4. Scale; 5. Pointer; 101, support plate; 102, fixed support rod; 103, movable support rod; 104, anti-sliding block; 105, movable block; 106, electric cylinder 1; 201, bidirectional screw; 202, motor 1; 301, lifting plate; 302, fixing plate; 303, clamping plate; 304, electric cylinder three; 305, electric cylinder four; 306, clamping block; 307, electric cylinder five; 401, rotating frame; 402, welding head; 403, electric cylinder six; 404, electric cylinder seven; 405, motor two; 501, driving shaft; 502, moving seat; 503, driving bevel gear; 504, driven bevel gear; 505, motor three; 506, rotating shaft; 507, fixed frame; 508, fixed shaft; 601, limit plate; 602, limit screw. DETAILED DESCRIPTION

[0020] The following will be combined with 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.

[0021] Embodiment 1, as Figures 1 to 7As shown, this embodiment proposes a descaling machine header welding device, including a base 1, a supporting mechanism, a clamping assembly and a welding mechanism. Compared with the header welding device in the prior art, the present invention can clamp multiple branch pipes at the same time by setting multiple clamping assemblies, and drive the welding head 402 to rotate through the rotating frame 401, so that the branch pipe and the main pipe are in a fixed state for circumferential welding, which is suitable for simultaneous welding of multiple branch pipes in different positions, and greatly improves the welding efficiency.

[0022] The supporting mechanism is used to support the main pipe, and the supporting mechanism includes a supporting plate 101, a fixed supporting rod 102 and a movable supporting rod 103. Two supporting plates 101 are provided, and the supporting plates 101 are slidably connected to the base 1. The ends of the two supporting plates 101 close to each other are fixedly connected with multiple anti-sliding blocks 104. The two supporting plates 101 move relatively. Two fixed supporting rods 102 are fixedly connected to the supporting plate 101. A movable block 105 is movably provided on the supporting plate 101. An electric cylinder 106 is installed on the supporting plate 101. The movable block 105 is fixedly connected to the output end of the electric cylinder 106. Two movable supporting rods 103 are fixedly connected to the movable block 105. The main pipe is located between the fixed supporting rod 102 and the movable supporting rod 103. In order to realize the relative movement of the two supporting plates 101, a clamping mechanism is also included. The clamping mechanism is used to drive the supporting plate 101 to clamp the main pipe. The clamping mechanism includes a bidirectional screw 201, and the bidirectional screw 201 The two-way screw 201 is symmetrically arranged on the outside of the two-way screw 201 and is threadedly matched with the two threaded sections of the two-way screw 201. The two-way screw 201 can be driven to rotate by the motor 202, thereby driving the two support plates 101 to move closer to or away from each other, placing the main pipe on the two sets of fixed support rods 102, and the electric cylinder 106 drives the moving block 105 and the moving support rod 103 to descend to limit the top of the main pipe. The heights of the two fixed support rods 102 and the two moving support rods 103 are flush, so that the main pipe can be stably limited. The two-way screw 201 drives the two support plates 101 to move closer to each other to clamp the main pipe, and the stability of the main pipe is improved by the anti-sliding block 104. The angle of the main pipe is adjusted to make the welding position horizontal, which is convenient for the subsequent branch pipe to be connected with the welding position.

[0023] To further ensure the stability of the main pipe, an auxiliary support plate 2 is provided on the base 1 which can be raised and lowered. An electric cylinder 2 3 is installed on the base 1. The auxiliary support plate 2 is fixedly connected to the output end of the electric rod 2. The auxiliary support plate 2 is in contact with the bottom end of the main pipe. The auxiliary support plate 2 can be driven to rise and fall by the electric cylinder 2 3 to support the bottom of the main pipe, thereby further improving the stability of the main pipe.

[0024] There are multiple clamping assemblies for clamping the branch pipe. The clamping assemblies include a lifting plate 301, a fixed plate 302 and a clamping plate 303. The lifting plate 301 can be lifted and moved on the base 1. The base 1 is provided with an electric cylinder 304. The output end of the electric cylinder 304 is installed with an electric cylinder 4 305. The lifting plate 301 is fixedly connected to the output end of the electric cylinder 4 305. The electric cylinder 304 is horizontally retracted, and the electric cylinder 4 305 is vertically retracted. The fixed plate 302 is movably arranged on the lifting plate 301. There are two clamping plates 303. The clamping plate 303 is movably arranged on the fixed plate 302. Two electric cylinders 5 307 are installed on the fixed plate 302. The clamping plate 303 corresponds to the electric cylinder 5 307 one by one. 303 is fixedly connected to the output end of the electric cylinder five 307. The branch pipe is located between the two clamping plates 303. To ensure that the axis of the branch pipe and the rotating shaft 506 coincide, the clamping plate 303 is fixedly connected to one end of the branch pipe close to the two clamping blocks 306. The clamping block 306 is wedge-shaped. The branch pipe is placed between the two clamping plates 303. The electric cylinder five 307 drives the two clamping plates 303 to approach each other to clamp the branch pipe. The clamping block 306 contacts the branch pipe. Under the action of the four clamping blocks 306, the center positions of the branch pipe and the fixed plate 302 correspond. The electric cylinder four 305 can drive the lifting plate 301 and the fixed plate 302 to rise and fall to adjust the height of the branch pipe. The electric cylinder three 304 can drive the branch pipe to approach the main pipe and fit tightly to the welding position of the main pipe.

[0025] The welding mechanism is used to weld the branch pipe and the main pipe. The welding mechanism includes a rotating frame 401 and a welding head 402. The rotating frame 401 can be rotatably arranged on the fixed plate 302. The rotation center of the rotating frame 401 coincides with the axis of the branch pipe. The welding head 402 is movably arranged on the rotating frame 401. An electric cylinder 6 403 is installed on the rotating frame 401. An electric cylinder 7 404 is installed at the output end of the electric cylinder 6 403. A motor 2 405 is installed at the output end of the electric cylinder 7 404. The welding head 402 is installed on the motor 2 At the output end of 405, electric cylinder six 403 drives electric cylinder seven 404 to rise and fall, electric cylinder seven 404 drives welding head 402 to approach or move away from main pipe, motor two 405 drives welding head 402 to rotate, adjusts the inclination angle of welding head 402, adjusts the welding position of welding head 402 by electric cylinder six 403, electric cylinder seven 404 and motor two 405, makes welding head 402 in welding seam position, drives welding head 402 to rotate around branch pipe by rotating frame 401, thereby welding the circumferential weld of branch pipe.

[0026] In order to realize the synchronous rotation of multiple rotating frames 401, a driving mechanism is also included, which is used to drive the rotating frames 401 to rotate. The driving mechanism includes a driving shaft 501, a moving seat 502, a driving bevel gear 503 and a driven bevel gear 504. The driving shaft 501 is rotatably arranged on the lifting plate 301, and a motor three 505 is installed on the lifting plate 301. The driving shaft 501 is fixedly connected to the output end of the motor three 505. The moving seat 502 is slidably connected to the lifting plate 301, and the moving seat 502 and the driving shaft 501 are in a sliding fit. The fixed plate 302 is fixedly connected to the moving seat 502, and the driving bevel gear 503 is rotatably connected to the moving seat 502. The driving bevel gear 503 and the driving shaft 501 are in a sliding fit. A sliding hole matching the driving shaft 501 is provided on the driving bevel gear 503, and a slider is fixedly connected to the inside of the sliding hole. A sliding groove matching the slider is provided on the driving shaft 501, and the driven bevel gear 504 is rotatably connected to the rotating shaft 506. The rotating frame 401 is connected to the moving seat 502, and the rotating frame 401 is fixedly connected to the rotating shaft 506. The driven bevel gear 504 and the driving bevel gear 503 are meshed. The moving seat 502 is fixedly connected to the fixed frame 507, and the fixed frame 507 is fixedly connected to the fixed plate 302 through the fixed shaft 508. The rotating shaft 506 is a hollow structure, and the fixed shaft 508 passes through the rotating shaft 506. The position of the moving seat 502 can be adjusted by the sliding cooperation between the moving seat 502 and the lifting plate 301. 02 drives the fixed plate 302 to move, so that the position of the branch pipe can be adjusted to make the branch pipe and the welding position correspond, the moving seat 502 drives the driving bevel gear 503 and the driven bevel gear 504 to move, the motor three 505 drives the driving shaft 501 to rotate, thereby driving the driving bevel gear 503 to rotate, the driving bevel gear 503 drives the driven bevel gear 504 and the rotating shaft 506 to rotate, and drives the rotating frame 401 and the welding head 402 to rotate around the branch pipe to weld the branch pipe and the main pipe.

[0027] In order to fix the position of the moving seat 502 and the branch pipe, a limit assembly is also included. The limit assembly is used to fix the position of the moving seat 502. The limit assembly includes a limit plate 601 and a limit screw 602. The limit plate 601 is fixedly connected to the moving seat 502. The limit screw 602 is threadedly connected to the limit plate 601. The limit screw 602 is in contact with the lifting plate 301. After the moving seat 502 moves, the limit screw 602 is tightened and pressed against the surface of the lifting plate 301, so that the position of the moving seat 502 can be fixed, thereby maintaining the stability of the branch pipe.

[0028] In order to facilitate the determination of the position of the branch pipe, a scale 4 is provided on the lifting plate 301, and a pointer 5 is fixedly connected to the moving seat 502. The moving seat 502 drives the pointer 5 to move, and the position between the branch pipes is observed through the scale 4 to assist the branch pipe in moving to the welding position.

[0029] Embodiment 2: This embodiment proposes a descaling machine header welding method, using the above-mentioned descaling machine header welding device, including the following steps: S1. Place the main pipe on top of the fixed rod, and rotate the bidirectional screw 201 to drive the two support plates 101 to move closer to each other to clamp the main pipe; S2, placing the branch pipe between the two clamping plates 303, the two clamping plates 303 are close to each other to clamp the branch pipe, and the axis of the branch pipe coincides with the axis of the rotating shaft 506; S3, the lifting plate 301 drives the branch pipe to rise to the height corresponding to the main pipe, adjusts the position of the movable seat 502, makes the branch pipe correspond to the subjective welding position, tightens the locking screw to fix the movable seat 502 and the branch pipe position, and moves the lifting plate 301 to make the branch pipe fit the welding position on the main pipe; S4, the welding head 402 moves to the welding position, and the rotating frame 401 drives the welding head 402 to rotate to weld the branch pipe and the main pipe; S5. The clamping plate 303 is away from the branch pipe, and the support plate 101 is away from the main pipe. The dephosphorization machine header is removed after welding, and subsequent welding can be performed.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A descaling machine header welding device, comprising a base (1), characterized in that: Also includes: A supporting mechanism, the supporting mechanism is used to support the main pipe; A clamping assembly, wherein a plurality of clamping assemblies are provided for clamping the branch pipe, and the clamping assembly comprises: A lifting plate (301), the lifting plate (301) being liftable and movably arranged on the base (1); a fixed plate (302), the fixed plate (302) being movably arranged on the lifting plate (301); A clamping plate (303), wherein two clamping plates (303) are provided, and the clamping plates (303) are movably provided on the fixed plate (302), and the branch pipe is located between the two clamping plates (303); A welding mechanism, which is used to weld the branch pipe and the main pipe, and comprises: A rotating frame (401), the rotating frame (401) being rotatably disposed on the fixed plate (302), the rotation center of the rotating frame (401) being coincident with the axis center of the branch pipe; A welding head (402), wherein the welding head (402) is movably arranged on the rotating frame (401).

2. A descaling machine header welding device according to claim 1, characterized in that: The supporting mechanism comprises: A support plate (101), wherein two support plates (101) are provided, and the support plates (101) are slidably connected to the base (1), and the two support plates (101) move relative to each other; Fixed support rods (102), two of the fixed support rods (102) being fixedly connected to the support plate (101); A movable support rod (103), a movable block (105) is movably provided on the support plate (101), two movable support rods (103) are fixedly connected to the movable block (105), and the main pipe is located between the fixed support rod (102) and the movable support rod (103).

3. A descaling machine header welding device according to claim 2, characterized in that: It also includes a driving mechanism, the driving mechanism is used to drive the rotating frame (401) to rotate, and the driving mechanism includes: A driving shaft (501), the driving shaft (501) being rotatably disposed on the lifting plate (301); A movable seat (502), the movable seat (502) being slidably connected to the lifting plate (301), the movable seat (502) and the driving shaft (501) being in sliding cooperation, and the fixed plate (302) being fixedly connected to the movable seat (502); A driving bevel gear (503), the driving bevel gear (503) being rotatably connected to the moving seat (502), the driving bevel gear (503) and the driving shaft (501) being in sliding fit; A driven bevel gear (504) is rotatably connected to the movable seat (502) via a rotating shaft (506); the rotating frame (401) and the rotating shaft (506) are fixedly connected; and the driven bevel gear (504) and the driving bevel gear (503) are meshed.

4. A descaling machine header welding device according to claim 3, characterized in that: It also includes a position limiting component, which is used to fix the position of the moving seat (502), and the position limiting component includes: A limiting plate (601), the limiting plate (601) being fixedly connected to the movable seat (502); A limiting screw (602), wherein the limiting screw (602) is threadedly connected to the limiting plate (601), and the limiting screw (602) is in contact with the lifting plate (301).

5. A descaling machine header welding device according to claim 4, characterized in that: An auxiliary support plate (2) is movably arranged on the base (1), and the auxiliary support plate (2) is in contact with the bottom end of the main pipe.

6. A descaling machine header welding device according to claim 5, characterized in that: It also includes a clamping mechanism, which is used to drive the support plate (101) to clamp the main pipe, and the clamping mechanism includes: A bidirectional screw (201) is rotatably arranged on the base (1), and the two support plates (101) are symmetrically arranged outside the bidirectional screw (201) and threadably matched with two threaded sections of the bidirectional screw (201).

7. A descaling machine header welding device according to claim 6, characterized in that: The lifting plate (301) is provided with a scale (4), and the movable seat (502) is fixedly connected with a pointer (5).

8. A descaling machine header welding device according to claim 7, characterized in that: One end of the clamping plate (303) close to the branch pipe is fixedly connected to two clamping blocks (306), and the clamping blocks (306) are wedge-shaped.

9. A descaling machine header welding device according to claim 8, characterized in that: A plurality of anti-sliding blocks (104) are fixedly connected to the ends of the two support plates (101) that are close to each other.

10. A descaling machine header welding method, using the descaling machine header welding device according to claim 9, characterized in that: The following steps are involved: S1. The main pipe is placed on top of the fixed rod, and the bidirectional screw (201) is rotated to drive the two support plates (101) to move closer to each other to clamp the main pipe; S2, placing the branch pipe between two clamping plates (303), the two clamping plates (303) approaching each other to clamp the branch pipe, and the axis of the branch pipe coincides with the axis of the rotating shaft (506); S3, the lifting plate (301) drives the branch pipe to rise to a height corresponding to the main pipe, adjusts the position of the movable seat (502) so that the branch pipe corresponds to the subjective welding position, tightens the locking screw to fix the movable seat (502) and the branch pipe, and moves the lifting plate (301) so that the branch pipe and the welding position on the main pipe fit together; S4, the welding head (402) moves to the welding position, and the rotating frame (401) drives the welding head (402) to rotate to weld the branch pipe and the main pipe; S5. The clamping plate (303) is away from the branch pipe, the support plate (101) is away from the main pipe, the dephosphorization machine header is removed after welding, and subsequent welding is performed.

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