Welding device for steel pipe
By designing a steel pipe welding device including a limiting plate and an adjustment mechanism, the problem of rolling and dislocation of the steel pipe during the welding process is solved, and stable welding of the bottom of the steel pipe is achieved, improving welding efficiency and operation convenience.
Patent Information
- Application Number
- CN202420808897.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-18
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-04-18
AI Technical Summary
During the welding of steel pipes, steel pipes are prone to rolling and misalignment, resulting in low welding efficiency, especially when welding the bottom of the steel pipe, which is inconvenient to operate.
A welding device for steel pipes is designed, including a horizontally arranged first fixing plate, a hinged second fixing plate, a limiting plate and an adjustment mechanism. The steel pipe is fixed and adjusted through the limiting plate to ensure that the bottom of the steel pipe can be stably welded.
It effectively prevents the rotation and misalignment of the steel pipe during welding, improves welding efficiency, especially facilitates welding the bottom of the steel pipe, and simplifies the operation process.
Smart Images
Figure CN222626765U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of welding auxiliary equipment, in particular to a welding device for steel pipes. Background Art
[0002] In civil engineering, steel pipe is a common material. It has been widely used due to its advantages such as strong load-bearing capacity, good durability and convenient construction. Steel pipe is an indispensable part of support, reinforcement, bridge construction, building structure, guardrail, stairs, platform, column, etc. In the process of use, due to different usage scenarios, the demand for steel pipe length is different, and in order to facilitate transportation, the length of steel pipe is limited. Therefore, in actual use, it is often necessary to weld steel pipe.
[0003] When welding steel pipes, two steel pipes need to be aligned before welding can be carried out to prevent the steel pipes from falling to the ground. Since the steel pipes are prone to rolling, they are prone to misalignment during welding, which affects the efficiency of steel pipe welding. Since the steel pipes are welded at the construction site, the environment is relatively complex, so most of the welding is done by manually operating the welding gun, and the existing device is mainly to fix the steel pipes to ensure that the steel pipes are not easily displaced during welding. However, since the steel pipes are round, when welding the bottom of the steel pipes, the steel pipes need to be rotated to turn the bottom of the steel pipes toward the side or top, and then welding can be carried out, which makes it inconvenient to weld the bottom of the steel pipes. Utility Model Content
[0004] The utility model aims to provide a welding device for a steel pipe, which is convenient for welding the bottom of the steel pipe.
[0005] The welding device for steel pipes comprises a horizontally arranged first fixing plate, two independent second fixing plates are arranged on the top of the first fixing plate, the two second fixing plates are distributed along the length direction of the first fixing plate, the second fixing plate is hinged to the top of the first fixing plate and swings along the width direction of the first fixing plate, two limit plates are obliquely fixed on the top of the second fixing plate along the length direction of the first fixing plate, the two limit plates are symmetrically distributed and have an inverted "eight" shape structure as a whole, a connecting mechanism connecting the two limit plates located on the same side of the length direction of the first fixing plate is arranged between them, and an adjusting mechanism for adjusting the inclination angle of the second fixing plate is arranged between the limit plate and the first fixing plate.
[0006] Furthermore, a clamping block is independently arranged above the second fixed plate, a third fixed plate is horizontally arranged above the clamping block, a lifting assembly for adjusting the distance between the clamping block and the third fixed plate is arranged on the third fixed plate, connecting blocks are vertically fixed at the bottom of both ends of the third fixed plate, one of the connecting blocks is hinged to one of the limiting plates and swings along the width direction of the first fixed plate; the other connecting block is connected to the other limiting plate by a locking assembly.
[0007] Furthermore, the bottom end of the clamping block is an arc-shaped structure that fits the pipe.
[0008] Furthermore, the lifting assembly includes a bolt, a threaded hole threadedly matched with the screw rod of the bolt is opened on the third fixed plate, the screw rod of the bolt passes through the threaded hole and is located below the third fixed plate and is fixed with a fixed column, a fixed tube is independently sleeved on the fixed column, the bottom end of the fixed tube is fixed to the top of the clamping block, and a first bearing is arranged between the fixed column and the fixed tube.
[0009] Furthermore, the locking assembly includes a first fixed block and a second fixed block which are horizontally arranged, the first fixed block is fixed to the limiting plate, the second fixed block is fixed to the connecting block, a first screw is hinged on the top of the first fixed block, a positioning groove for the swinging insertion of the first screw is provided on the second fixed block, and a nut which is threadably matched with the first screw is provided on the first screw.
[0010] Furthermore, a support block is vertically arranged between the second fixing plate and the first fixing plate, the bottom end of the support block is fixed to the top of the first fixing plate, and the top end of the support block is hinged to the bottom of the second fixing plate.
[0011] Furthermore, the connecting mechanism includes two connecting plates, which are respectively fixed on two limit plates on the same side of the length direction of the first fixed plate. A slider is independently arranged between the two connecting plates, and a sliding groove for inserting and horizontally sliding the slider is opened at the opposite ends of the two connecting plates.
[0012] Furthermore, the adjustment mechanism includes a screw rod, on which is provided a sleeve threadedly matched therewith, one end of the sleeve passes through the screw rod and is independently provided with a fixing rod, the fixing rod and the sleeve are connected by a second bearing, the fixing rod is hinged to the top of the first fixing plate and swings along its width direction, and the screw rod is hinged to the connecting plate and swings along the width direction of the first fixing plate.
[0013] Compared with the prior art, the utility model has the following beneficial effects:
[0014] The utility model limits the steel pipe by two limit plates, which can prevent the steel pipe from rotating during welding, thereby facilitating the welding of the steel pipe; and by adjusting the inclination angle of the second fixed plate, the limit plate can drive the steel pipe to incline, so that the position of the bottom of the steel pipe is changed, thereby facilitating the welding of the bottom of the steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the structure of the utility model;
[0016] Figure 2 for Figure 1 A right view structural diagram of ;
[0017] Figure 3 for Figure 1 Schematic diagram of the left view structure;
[0018] The names of the components in the figure are: 1. first fixed plate; 2. support block; 3. second fixed plate; 4. limit plate; 5. first fixed block; 6. second fixed block; 7. first screw; 8. nut; 9. connecting block; 10. third fixed plate; 11. fixing column; 12. bolt; 13. fixing pipe; 14. clamping block; 15. connecting plate; 16. slider; 17. screw; 18. sleeve; 19. fixing rod. DETAILED DESCRIPTION
[0019] The present invention is further described below through specific embodiments in conjunction with the accompanying drawings, but the present invention is not limited thereto. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
[0020] A steel pipe welding device according to this embodiment, such as Figure 1 , Figure 2 and Figure 3 As shown, it includes a horizontally arranged first fixing plate 1, and two mutually independent second fixing plates 3 are arranged on the top of the first fixing plate 1. The two second fixing plates 3 are distributed along the length direction of the first fixing plate 1. Figure 1 As shown in the middle position, the distance between the front and rear ends of the first fixing plate 1 is its length, and the two second fixing plates 3 are distributed front and back on the top of the first fixing plate 1.
[0021] The second fixed plate 3 is hinged to the top of the first fixed plate 1 and swings along the width direction of the first fixed plate 1. The distance between the left and right sides of the first fixed plate 1 is its width. The second fixed plate 3 swings left and right on the top of the first fixed plate 1. Two limiting plates 4 are fixed obliquely on the top of the second fixed plate 3 along the length direction of the first fixed plate 1. The two limiting plates 4 are symmetrically distributed and have an inverted "eight" structure as a whole. The two limiting plates 4 on the same second fixed plate 3 are symmetrically distributed left and right. The distance between the bottom ends of the two limiting plates 4 is smaller than the distance between the top ends. Steel pipes of different sizes can be placed between the two limiting plates 4, and the rolling of the steel pipes can be restricted by the two limiting plates 4.
[0022] In order to better fix the steel pipe, in some embodiments, a clamping block 14 is independently arranged above the second fixing plate 3. The number of the clamping blocks 14 can be determined according to the length of the second fixing plate 3. When the length of the second fixing plate 3 is relatively long, two clamping blocks 14 can be arranged above one second fixing plate 3, which has a better fixing effect on the steel pipe. A third fixing plate 10 is horizontally arranged above the clamping block 14.
[0023] The bottom end of the clamping block 14 is an arc-shaped structure that fits the pipe. The clamping block 14 is a "C"-shaped structure as a whole, which can make the bottom of the clamping block 14 have a larger contact area with the pipe, so that the clamping block 14 has a better fixing effect on the steel pipe.
[0024] The third fixing plate 10 is provided with a threaded hole, in which a bolt 12 threadedly matched with the threaded hole is arranged, the screw of the bolt 12 passes through the threaded hole and is located below the third fixing plate 10 and is fixed with a fixing column 11, the diameter of the fixing column 11 is consistent with the diameter of the screw of the bolt 12, and a fixing tube 13 is independently sleeved on the fixing column 11, the bottom end of the fixing tube 13 is fixed to the top of the clamping block 14, and a first bearing is arranged between the fixing column 11 and the fixing tube 13, the inner ring of the first bearing is fixedly sleeved on the fixing column 11, and the outer ring of the first bearing is fixed to the inner side wall of the fixing tube 13, and when the bolt 12 is threadedly matched with the third fixing plate 10, the first bearing can be used to fix the fixing column 11. In order to prevent the bolt 12 from driving the clamping block 14 to rotate, the fixing tube 13 and the fixing column 11 are connected through the first bearing, thereby connecting the clamping block 14 and the bolt 12, so that the bolt 12 drives the clamping block 14 to move up and down, and the height of the clamping block 14 is adjusted to make the clamping block 14 fit the steel pipe; of course, in some embodiments, the lifting assembly can also include a first fixing tube, the top of the first fixing tube is fixed to the bottom of the third fixing plate 10, and a second fixing tube is independently installed in the first fixing tube, and the bottom end of the second fixing tube exceeds the first fixing tube and is fixed to the top of the clamping block 14, and the first fixing tube is provided with a bolt that fixes it to the second fixing tube. This paragraph of text as a whole constitutes a lifting assembly for adjusting the distance between the clamping block 14 and the third fixing plate 10.
[0025] The bottom of both ends of the third fixed plate 10 are vertically fixed with connecting blocks 9, one of which is hinged to one of the limiting plates 4 and swings along the width direction of the first fixed plate 1; the other connecting block 9 is connected to the other limiting plate 4 through a locking assembly, such as Figure 1 As shown in the middle position, the bottom of the left connecting block 9 is hinged to the top of the left limiting plate 4 and swings left and right, and the bottom of the right connecting block 9 is connected to the right limiting plate 4 through the first fixing block 5, the second fixing block 6, the first screw 7 and the nut 8.
[0026] The locking assembly includes a first fixing block 5 and a second fixing block 6 arranged horizontally, wherein the first fixing block 5 is fixed to the limiting plate 4, and the second fixing block 6 is fixed to the connecting block 9. Figure 1 As shown, the first fixing block 5 and the second fixing block 6 are located on the right side, the first fixing block 5 is fixed to the right top of the right limiting plate 4, the second fixing block 6 is fixed to the right bottom of the right connecting block 9, the top of the first fixing block 5 is hinged with a first screw rod 7, the first screw rod 7 swings left and right, the second fixing block 6 is provided with a positioning groove for the first screw rod 7 to swing and insert, the first screw rod 7 is provided with a nut 8 threadedly matched therewith, when in use, the first screw rod 7 is made vertical, the second fixing block 6 is made between the nut 8 and the first fixing block 5, the first fixing block 5 is made And fit with the second fixing block 6, so as to connect the connecting block 9 with the limiting plate 4, and when the third fixing plate 10 is to be turned over, the nut 8 is turned upward to make the first screw 7 swing to the right, so that the second fixing block 6 and the third fixing plate 10 can be turned over; of course, in some embodiments, the first screw 7 can also be not hinged to the first fixing block 5, and through holes for the first screw 7 to pass through are provided on the second fixing block 6 and the first fixing block 5, and two nuts are provided on the first screw 7, and the first fixing block 5 and the second fixing block 6 are fit together by the two nuts.
[0027] By adjusting the height of the clamping block 14 through the bolt 12, the clamping block 14 can be fitted with the top of the steel pipe, so that the clamping block 14 limits the upward movement of the steel pipe, and the clamping block 14 and the two limit plates 4 can better fix the steel pipe, so that the second fixed plate 3 can prevent the steel pipe from rotating during the tilting process, and the inclination angle of the second fixed plate 3 can be increased, such as rotating 90° to make the steel pipe rotate 90°, so that the bottom of the steel pipe faces right, which is convenient for welding the bottom of the steel pipe; of course, in actual use, because the steel pipe fits with the limit plate 4, the friction between the steel pipe and the limit plate 4 is relatively large, and when the inclination angle of the second fixed plate 3 is not large (not greater than 45°), the steel pipe will not rotate.
[0028] A support block 2 is vertically arranged between the second fixed plate 3 and the first fixed plate 1, and the bottom end of the support block 2 is fixed to the top of the first fixed plate 1, and the top end of the support block 2 is hinged to the bottom of the second fixed plate 3. The support block 2 can be used to create a distance between the second fixed plate 3 and the first fixed plate 1, so that the second fixed plate 3 can have a larger tilting space. Moreover, after there is a distance between the second fixed plate 3 and the first fixed plate 1, after the steel pipe is placed in the limiting plate 4, there is a distance between the bottom of the steel pipe and the first fixed plate 1, which is also convenient for welding the bottom of the steel pipe.
[0029] A connecting plate 15 is fixed to the two limiting plates 4 on the same side of the length direction of the first fixing plate 1. Two connecting plates 15 are provided. A slider 16 is independently provided between the two connecting plates 15. The opposite ends of the two connecting plates 15 are provided with a slide groove for the slider 16 to be inserted and slide horizontally. Figure 3 As shown in the middle position, the two connecting plates 15 are respectively fixed to the limit plates 4 on the front sides of the left and right second fixing plates 3, and the right end of the left connecting plate 15 and the left end of the right connecting plate 15 are both provided with a slide groove for inserting the slider 16, and the length of the slider 16 is not less than the distance between the two connecting plates 15, so that both ends of the slider 16 can be located in the slide grooves on the two connecting plates 15, as shown in FIG. Figure 3 As shown in the middle position, because the second fixing plate 3 swings back and forth, when the slider 16 is located in the slide groove on the connecting plate 15, as long as one connecting plate 15 is tilted, the other connecting plate 15 will be tilted through the slider 16; of course, in some embodiments, in order to reduce the sliding of the slider 16 in the slide groove, bolts for fixing the slider 16 in the slide groove can be provided on the connecting plate 15. This paragraph of text as a whole constitutes a connecting mechanism for connecting two limit plates 4 on the same side of the length direction of the first fixing plate 1.
[0030] A screw 17 is provided between one of the limit plates 4 and the top of the first fixed plate 1, and a sleeve 18 is provided on the screw 17 to be threadedly matched with the screw 17. The inner wall of the sleeve 18 is provided with an internal thread that is threadedly matched with the screw 17. Of course, in some embodiments, the screw 17 can also be a lead screw, and the sleeve 18 and the screw 17 are matched with a lead screw pair. One end of the sleeve 18 passes through the screw 17 and is independently equipped with a fixing rod 19. The fixing rod 19 and the sleeve 18 are connected through a second bearing. The inner ring of the second bearing is fixedly sleeved on the fixing rod 19, and the outer ring of the second bearing is fixed to the inner wall of the sleeve 18. Of course, the inner wall of the sleeve 18 fixed to the second bearing is not threaded. The fixing rod 19 is hinged to the top of the first fixed plate 1 and swings along its width direction. The screw 17 is hinged to the connecting plate 15 and swings along the width direction of the first fixed plate 1. Figure 1As shown in the middle position, the connecting plate 15 is fixed to the left limit plate 4, the screw 17, sleeve 18 and fixing rod 19 are located on the left side of the limit plate 4, the screw 17 is hinged to the connecting plate 15 and swings left and right, and the fixing rod 19 is hinged to the top of the first fixing plate 1 and swings left and right. Through the threaded cooperation of the sleeve 18 and the screw 17, the combined length of the screw 17 and the sleeve 18 can be changed, thereby adjusting the inclination angle of the left limit plate 4, so that the second fixing plate 3 is tilted, thereby tilting the steel pipe. This paragraph of text as a whole constitutes an adjustment mechanism for adjusting the inclination angle of the second fixing plate 3.
[0031] Working principle:
[0032] When using, Figure 2 As shown in the middle position, the two steel pipes to be welded are placed between the limit plates 4 on the top of the left and right second fixed plates 3 respectively, the third fixed plate 10 can be flipped backwards, and then the steel pipe is placed between the two limit plates 4 from the top of the limit plate 4, and the steel pipe can also be inserted between the two limit plates 4 from the left and right ends respectively, and then the two welded steel pipes are contacted, and the clamping block 14 is moved downward by the bolt 12 so that the clamping block 14 fixes the steel pipe, and then the steel pipe is welded. For example, the bottom is welded first, and the front and rear sides of the welded pipe are welded. When the bottom of the steel pipe is to be welded, the slider 16 is slid so that the two ends of the slider 16 are respectively located in the slide grooves on the two connecting plates 15, and the sleeve 18 is rotated to adjust the combined length of the sleeve 18 and the screw 17, so that the screw 17 drives the connecting plate 15 to swing, so that the second fixed plate 3 is tilted, and the limit plate 4 also drives the steel pipe to tilt, which is convenient for welding. Figure 1 As shown in the middle position, the combined length of the sleeve 18 and the screw 17 becomes shorter, so that the screw 17 drives the connecting plate 15 to move to the left, and the connecting plate 15 will tilt the second fixed plate 3 to the left lower and the right higher through the limiting plate 4, so that the bottom of the steel pipe between the two limiting plates 4 is tilted to the right front, so that the bottom of the steel pipe can be welded, and the welding of the steel pipe is completed on the left and right, which is simple and convenient to operate.
Claims
1. A welding device for a steel pipe, comprising a first fixing plate (1) arranged horizontally, characterized in that: Two mutually independent second fixing plates (3) are arranged on the top of the first fixing plate (1), the two second fixing plates (3) are distributed along the length direction of the first fixing plate (1), the second fixing plates (3) are hinged to the top of the first fixing plate (1) and swing along the width direction of the first fixing plate (1), two limiting plates (4) are fixed obliquely on the top of the second fixing plate (3) along the length direction of the first fixing plate (1), the two limiting plates (4) are symmetrically distributed and have an inverted "eight"-shaped structure as a whole, a connecting mechanism for connecting the two limiting plates (4) located on the same side of the length direction of the first fixing plate (1) is arranged between the limiting plates (4) and the first fixing plate (1), and an adjusting mechanism for adjusting the inclination angle of the second fixing plates (3) is arranged between the limiting plates (4) and the first fixing plate (1).
2. The steel pipe welding device according to claim 1, characterized in that: A clamping block (14) is independently arranged above the second fixing plate (3), a third fixing plate (10) is horizontally arranged above the clamping block (14), a lifting assembly for adjusting the distance between the clamping block (14) and the third fixing plate (10) is arranged on the third fixing plate (10), and connecting blocks (9) are vertically fixed to the bottom of both ends of the third fixing plate (10), one of the connecting blocks (9) is hinged to one of the limiting plates (4) and swings along the width direction of the first fixing plate (1); the other connecting block (9) is connected to the other limiting plate (4) via a locking assembly.
3. The steel pipe welding device according to claim 2, characterized in that: The bottom end of the clamping block (14) is an arc-shaped structure that fits the pipeline.
4. The steel pipe welding device according to claim 3, characterized in that: The lifting assembly comprises a bolt (12); a threaded hole threadably matched with a screw rod of the bolt (12) is provided on the third fixing plate (10); the screw rod of the bolt (12) passes through the threaded hole and is located below the third fixing plate (10) and is fixed with a fixing column (11); a fixing tube (13) is independently sleeved on the fixing column (11); the bottom end of the fixing tube (13) is fixed to the top of a clamping block (14); and a first bearing is provided between the fixing column (11) and the fixing tube (13).
5. The steel pipe welding device according to claim 4, characterized in that: The locking assembly comprises a first fixing block (5) and a second fixing block (6) which are arranged horizontally, the first fixing block (5) being fixed to the limiting plate (4), the second fixing block (6) being fixed to the connecting block (9), a first screw rod (7) being hingedly connected to the top of the first fixing block (5), a positioning groove for swinging and inserting the first screw rod (7) being provided on the second fixing block (6), and a nut (8) threadably matched with the first screw rod (7) being provided on the first screw rod (7).
6. The steel pipe welding device according to claim 1 or 5, characterized in that: A support block (2) is vertically arranged between the second fixing plate (3) and the first fixing plate (1); the bottom end of the support block (2) is fixed to the top of the first fixing plate (1), and the top end of the support block (2) is hinged to the bottom of the second fixing plate (3).
7. The steel pipe welding device according to claim 6, characterized in that: The connection mechanism comprises two connection plates (15), the two connection plates (15) being respectively fixed to two limit plates (4) on the same side of the length direction of the first fixed plate (1), a sliding block (16) being independently arranged between the two connection plates (15), and a sliding groove for the sliding block (16) to be inserted and slide horizontally is provided at opposite ends of the two connection plates (15).
8. The steel pipe welding device according to claim 7, characterized in that: The adjustment mechanism comprises a screw rod (17), a sleeve (18) threadedly matched with the screw rod (17) is provided on the screw rod (17), one end of the sleeve (18) passes through the screw rod (17) and is independently provided with a fixing rod (19), the fixing rod (19) and the sleeve (18) are connected via a second bearing, the fixing rod (19) is hinged to the top of the first fixing plate (1) and swings along the width direction thereof, and the screw rod (17) is hinged to the connecting plate (15) and swings along the width direction of the first fixing plate (1).