A stainless steel pipe welding device

Abstract

The utility model discloses a kind of stainless steel pipe welding devices, including support, the both ends of the support are respectively connected with the round shaft of both ends of support seat through bearing rotation, the upper side of the support seat is equipped with a group of evenly arranged square holes, the round shaft of one end of the support seat is fixedly connected with carousel, a group of circumferentially evenly arranged insertion holes are opened in the carousel, the upper end of one side of the support is fixedly provided with positioning assembly, the insertion rod of the positioning assembly can be inserted into corresponding insertion hole, the utility model relates to stainless steel pipe welding equipment technical field, in particular to a kind of stainless steel pipe welding device, hand wheel drive carousel drives support seat to rotate, positioning ball rotates with carousel and is automatically embedded into lower positioning slot, finally through insertion rod insertion insertion hole locking angle, avoid support seat accidental rotation in welding process, so that pipe material can be quickly adjusted to any required welding position, can be positioned to pipe material of different length and different diameter.

Description

Technical Field

[0001] This utility model relates to the technical field of stainless steel pipe welding equipment, and in particular to a stainless steel pipe welding device. Background Technology

[0002] In the field of stainless steel pipe welding, traditional welding operations mainly rely on fixed supports or simple clamps to position the pipes, which presents the following significant technical challenges: Traditional devices are mostly fixed structures that can only achieve horizontal or specific angle welding. If the pipe welding position needs to be adjusted, repeated disassembly and re-clamping of the pipe can lead to weld misalignment and reduced welding accuracy. Existing clamps mostly use metal materials to directly clamp the pipes. On the one hand, the friction between metals is insufficient, and the pipes are prone to displacement due to vibration or thermal stress during the welding process. On the other hand, rigid contact can easily scratch the surface of stainless steel pipes, especially for thin-walled pipes or pipes with high appearance requirements (such as decorative stainless steel pipes), which will directly affect the product qualification rate. The clamping range of traditional clamps is fixed and cannot flexibly adapt to stainless steel pipes of different diameters and wall thicknesses. When changing pipe specifications, the entire set of clamps must be replaced, resulting in low versatility.

[0003] The aforementioned problems result in low operating efficiency, poor welding accuracy, and unstable product qualification rate of traditional stainless steel pipe welding equipment. Therefore, there is an urgent need for a welding device that can balance flexible angle adjustment, precise positioning, pipe protection, and convenient operation. Utility Model Content

[0004] This utility model provides a stainless steel pipe welding device. The handwheel drives the turntable to rotate the support base. The positioning ball automatically inserts into the next positioning slot as the turntable rotates. Finally, the insertion rod is inserted into the insertion hole to lock the angle, which avoids the support base from rotating accidentally during the welding process. This allows the pipe to be quickly adjusted to any desired welding position and can position pipes of different lengths and diameters.

[0005] The technical solution adopted by this utility model to solve its technical problem is a stainless steel pipe welding device, including a bracket. The two ends of the bracket are respectively rotatably connected to the two ends of the support base through bearings. A set of evenly arranged square holes are opened on the upper side of the support base. A turntable is fixedly connected to one end of the support base. A set of evenly arranged circumferential insertion holes are opened on the turntable. A positioning component is fixedly installed on the upper side of one side of the bracket. The insertion rod of the positioning component can be inserted into the corresponding insertion hole. The outer shell of a second gas spring is fixedly connected to one end of the upper side of the support base. The telescopic rod of the second gas spring is fixedly connected to the top plate. A sliding groove is opened at the other end of the support base. A slider is slidably arranged in the sliding groove. The slider is fixed to the lower middle part of the block. The slider is screwed to a third screw. One end of the third screw is rotatably connected to the support base.

[0006] Furthermore, the surfaces of the top plate and the abutment are provided with a rubber coating.

[0007] Furthermore, a support block is fixedly provided on the upper side of the support base corresponding to the position between each of the square holes. The upper side of the support block is a V-shaped groove, and a pipe positioning component is fixedly provided on the upper part of one side of the support block.

[0008] Furthermore, the pipe clamping assembly includes an L-shaped frame, with a first screw threaded to the upper end of the L-shaped frame, a pressure block fixed to the lower end of the first screw, and a knob fixed to the upper end of the first screw.

[0009] Furthermore, the pressing block is a rubber block.

[0010] Furthermore, the positioning component includes a fixed base, a limit ring is fixedly provided at one upper end of the fixed base, the limit ring is slidably connected to an insertion rod, one end of the insertion rod is rotatably connected to one end of a connecting rod, the other end of the connecting rod is rotatably connected to the corner of a crank arm, the crank arm is rotatably connected to the upper side of the other end of the fixed base, and the other end of the crank arm is fixedly connected to a handle.

[0011] Furthermore, the turntable is fixedly connected to a handwheel.

[0012] Furthermore, the turntable is provided with a set of circumferentially evenly arranged positioning grooves. A first gas spring is fixedly installed on the upper side of one end of the bracket corresponding to the positioning groove. The end of the telescopic rod of the first gas spring is fixedly connected to a positioning ball. The positioning ball can enter the positioning groove. The outer circle of the positioning groove is arc-shaped. When the turntable rotates, the positioning groove can rotate with the turntable and thus disengage from the positioning ball. As the turntable rotates, the positioning ball can enter the next positioning groove.

[0013] The beneficial effects of this stainless steel pipe welding device:

[0014] The handwheel drives the turntable to rotate the support base. The positioning ball automatically inserts into the next positioning slot as the turntable rotates. Finally, the insertion rod is inserted into the socket to lock the angle, preventing the support base from rotating accidentally during the welding process. This allows the pipe to be quickly adjusted to any desired welding position and can position pipes of different lengths and diameters.

[0015] The V-groove of the support block utilizes the geometric axisymmetry to automatically center and position circular stainless steel tubes of different diameters, eliminating the need for manual adjustment of the tube position and solving the problem of difficult manual alignment in traditional clamps.

[0016] The rubber coating on the top plate and the abutment surface, and the rubber pressure block, through the high coefficient of friction and elastic deformation, not only avoid the metal clamps from scratching the pipe surface, but also provide stable clamping force to prevent the pipe from shifting due to vibration or thermal deformation during the welding process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 3 ;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 4 ;

[0021] Figure 5 For the present utility model Figure 4 A magnified view of a portion of point A in the middle.

[0022] The above-mentioned reference numerals are as follows: 1. Pipe fitting; 2. Knob; 3. L-shaped bracket; 4. First screw; 5. Pressure block; 6. Abutment block; 7. Handwheel; 8. Turntable; 9. Positioning groove; 10. First gas spring; 11. Positioning ball; 12. Bracket; 13. Support block; 14. Support seat; 15. Second gas spring; 16. Top plate; 17. Slider; 18. Third screw; 19. Slide groove; 20. Insertion hole; 21. Limiting ring; 22. Insertion rod; 23. Fixing seat; 24. Connecting rod; 25. Crank arm; 26. Handle. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments, but these specific embodiments do not limit the scope of protection of the present invention in any way.

[0024] See Figures 1-3 A stainless steel pipe welding device includes a bracket 12. The two ends of the bracket 12 are rotatably connected to the two ends of the round shaft of the support base 14 via bearings. The upper side of the support base 14 has a set of evenly arranged square holes. One end of the support base 14 is fixedly connected to a turntable 8. The turntable 8 has a set of evenly arranged circumferential insertion holes 20. A positioning component is fixedly installed on the upper side of one side of the bracket 12. The insertion rod 22 of the positioning component can be inserted into the corresponding insertion hole 20. The upper end of the support base 14 is fixedly connected to the outer shell of the second gas spring 15. The telescopic rod of the second gas spring 15 is fixedly connected to the top plate 16. The other end of the support base 14 has a sliding groove 19. A slider 17 is slidably installed in the sliding groove 19. The slider 17 is fixed to the lower middle part of the abutment 6. The slider 17 is screwed to a third screw 18. One end of the third screw 18 is rotatably connected to the support base 14.

[0025] In this embodiment, the bracket 12 is connected to the round shaft of the support base 14 through the bearing, so that the support base 14 can rotate around the shaft. The turntable 8 is fixedly connected to the support base 14, and the insertion hole 20 on it cooperates with the insertion rod 22 of the positioning component to lock the rotation angle of the support base 14. The second gas spring 15 drives the top plate 16 to move through the telescopic rod to provide stable extrusion force. It cooperates with the stop block 6 to limit the two ends of the pipe fitting 1. The screw connection structure (screw drive) of the third screw 18 and the slider 17 can manually adjust the position of the stop block 6 to adapt to pipes of different diameters and realize multi-angle positioning welding of the pipe.

[0026] The surfaces of the top plate 16 and the abutment 6 are coated with a rubber coating. The rubber coating on the surfaces of the top plate 16 and the abutment 6 increases friction (the high coefficient of friction of rubber) and elastic deformation, ensuring that the pipe does not slip during welding, while avoiding surface scratches caused by direct metal contact, improving clamping stability, preventing pipe misalignment due to vibration or rotation, protecting the end face of the stainless steel pipe, and avoiding damage that may be caused by traditional metal clamps.

[0027] Support blocks 13 are fixedly installed on the upper side of the support base 14 at the positions corresponding to each square hole. The upper side of the support block 13 is a V-shaped groove, and a pipe fitting 1 positioning component is fixedly installed on the upper part of one side of the support block 13.

[0028] In this embodiment, the V-groove of the support block 13 utilizes an axisymmetric structure to automatically center the circular pipe, reducing positioning errors. The V-groove of the pipe fitting 1 clamping assembly cooperates to form a dual constraint of support and clamping, ensuring that the pipe is completely fixed during welding.

[0029] The pipe fitting 1 clamping assembly includes an L-shaped frame 3, with a first screw 4 screwed to the upper end of the L-shaped frame 3, a pressure block 5 fixed to the lower end of the first screw 4, and a knob 2 fixed to the upper end of the first screw 4.

[0030] Press block 5 is a rubber block.

[0031] The first screw 4 on the L-shaped frame is rotated to convert into the vertical displacement of the pressure block 5. The rubber pressure block 5 distributes the pressure evenly through elastic deformation, avoiding local stress concentration that could cause pipe deformation. This allows operators to manually adjust the clamping force according to the pipe material and wall thickness.

[0032] The positioning component includes a fixed base 23. A limit ring 21 is fixedly installed on one upper end of the fixed base 23. The limit ring 21 is slidably connected to an insertion rod 22. One end of the insertion rod 22 is rotatably connected to one end of a connecting rod 24. The other end of the connecting rod 24 is rotatably connected to the corner of a crank arm 25. The crank arm 25 is rotatably connected to the upper side of the other end of the fixed base 23. The other end of the crank arm 25 is fixedly connected to a handle 26.

[0033] The handle 26 drives the insertion rod 22 to move linearly via the crank arm 25 and connecting rod 24, enabling the insertion and withdrawal of the socket 20. The limiting ring 21 constrains the movement direction of the insertion rod 22 to ensure positioning accuracy. The handle 26 allows for the rapid release of the insertion rod 22, facilitating the rotation and angle adjustment of the support base 14. It also provides a reliable mechanical lock to prevent the support base 14 from rotating accidentally during the welding process.

[0034] Turntable 8 is fixedly connected to handwheel 7.

[0035] The turntable 8 is also provided with a set of evenly arranged positioning grooves 9. The bracket 12 is fixedly provided with a first gas spring 10 on the upper side of one end of the positioning groove 9. The end of the telescopic rod of the first gas spring 10 is fixedly connected to the positioning ball 11. The positioning ball 11 can enter the positioning groove 9. The outer circle of the positioning groove 9 is arc-shaped. When the turntable 8 rotates, the positioning groove 9 can rotate with the turntable 8 and thus disengage from the positioning ball 11. As the turntable 8 rotates, the positioning ball 11 can enter the positioning groove 9 again.

[0036] The first gas spring 10 drives the positioning ball 11 to pop out. When the turntable 8 rotates, the arc-shaped outer circle of the positioning groove 9 forces the positioning ball 11 to retract. After the next positioning groove 9 is aligned, it is reinserted, realizing a continuous cycle of rotation and positioning. The handwheel 7 provides a coarse adjustment function, and the positioning ball 11 system achieves precise positioning. The arc-shaped design of the positioning groove 9 reduces friction, ensuring smooth rotation of the turntable 8 and avoiding the jamming problem of traditional pin hole positioning.

[0037] The working process of this utility model is as follows: When in use, the stainless steel pipe to be welded is placed into the V-groove of the support block 13 on the support base 14 so that the welding ends of the pipe are aligned (if two pipes are joined together, it is necessary to ensure that the weld position is between adjacent support blocks 13, and leave space for welding operation).

[0038] Rotate the third screw 18 at the other end of the support base 14 to drive the slider 17 to move, so that the abutment 6 fits against one end face of the pipe, and cooperates with the top plate 16 driven by the second gas spring 15 (the gas spring automatically extends and the top plate 16 presses against the other end of the pipe) to achieve lateral limiting of both ends of the pipe.

[0039] Rotate the knob 2 of the positioning component of the pipe fitting 1, which drives the first screw 4 to move down, so that the rubber pressure block 5 gradually presses the upper surface of the pipe until the resistance is obvious and the pipe is not loose (adjust according to the pipe wall thickness; for thin-walled pipes, the pressing force can be appropriately reduced to avoid deformation).

[0040] Pull the handle 26 of the positioning component upward to drive the crank arm 25 to rotate around the fixed base 23, and pull the insertion rod 22 out of the insertion hole 20 of the turntable 8 through the connecting rod 24 to release the angle lock of the support base 14.

[0041] Rotate the handwheel 7 on the turntable 8 to drive the support base 14 to rotate around the circular axis (simultaneously observe the welding angle of the pipe). During the process, the positioning ball 11 will automatically disengage from the current positioning slot 9 as the turntable 8 rotates (the arc-shaped outer circle of the positioning slot 9 forces the positioning ball 11 to compress the first gas spring 10), and automatically pop out and embed when rotating to the next positioning slot 9. Each embedding into a positioning slot 9 corresponds to a fixed angle (e.g., 15° / gear, the gear interval can be adjusted according to the number of sockets 20).

[0042] When the pipe is rotated to the target welding position, stop turning the handwheel 7, press down the handle 26 of the positioning component, push the insertion rod 22 through the limit ring 21 and insert it into the corresponding insertion hole 20 of the turntable 8 to complete the final locking of the angle of the support seat 14.

[0043] The operator holds the welding torch and aims it at the weld seam of the pipe to weld. If segmented welding or adjustment of the welding position is required, the above unlocking, fine-tuning angle and locking steps can be repeated. There is no need to disassemble the pipe. Just adjust the angle of the support 14 directly. After adjustment, loosen the top block, adjust the angle of the pipe fitting 1, tighten the top block and weld. After welding is completed, wait for the weld to cool to a safe temperature, release the pipe fitting 1 and remove the welded pipe fitting 1.

[0044] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present invention shall still fall within the scope of the present utility model.

Claims

1. A stainless steel pipe welding device, comprising a support (12), characterized in that: The two ends of the bracket (12) are respectively rotatably connected to the two ends of the round shaft of the support base (14) through bearings. The upper side of the support base (14) is provided with a set of evenly arranged square holes. One end of the round shaft of the support base (14) is fixedly connected to the turntable (8). The turntable (8) is provided with a set of evenly arranged circumferential insertion holes (20). A positioning component is fixedly provided on the upper side of one side of the bracket (12). The insertion rod (22) of the positioning component can be inserted into the corresponding insertion hole (20). The upper end of the support (14) is fixedly connected to the outer shell of the second gas spring (15), and the telescopic rod of the second gas spring (15) is fixedly connected to the top plate (16). The other end of the support (14) is provided with a sliding groove (19), and a slider (17) is slidably arranged in the sliding groove (19). The slider (17) is fixed to the lower middle part of the abutment (6). The slider (17) is screwed to the third screw (18), and one end of the third screw (18) is rotatably connected to the support (14).

2. The stainless steel pipe welding device according to claim 1, characterized in that: The surfaces of the top plate (16) and the abutment (6) are provided with a rubber coating.

3. The stainless steel pipe welding device according to claim 2, characterized in that: Support blocks (13) are fixedly installed on the upper side of the support base (14) corresponding to the positions between each square hole. The upper side of the support block (13) is a V-shaped groove. A pipe fitting (1) clamping assembly is fixedly installed on the upper part of one side of the support block (13).

4. The stainless steel pipe welding apparatus according to claim 3, characterized in that: The pipe fitting (1) clamping assembly includes an L-shaped frame (3), with a first screw (4) screwed to the upper end of the L-shaped frame (3), a pressure block (5) fixed at the lower end of the first screw (4), and a knob (2) fixed at the upper end of the first screw (4).

5. The stainless steel pipe welding apparatus according to claim 4, characterized in that: The pressing block (5) is a rubber block.

6. The stainless steel pipe welding apparatus according to claim 1, characterized in that: The positioning component includes a fixed base (23), a limiting ring (21) is fixedly provided on the upper end of the fixed base (23), the limiting ring (21) is slidably connected to the insertion rod (22), one end of the insertion rod (22) is rotatably connected to one end of the connecting rod (24), the other end of the connecting rod (24) is rotatably connected to the corner of the crank arm (25), the crank arm (25) is rotatably connected to the upper side of the other end of the fixed base (23), and the other end of the crank arm (25) is fixedly connected to the handle (26).

7. The stainless steel pipe welding apparatus according to claim 1, characterized in that: The turntable (8) is fixedly connected to the handwheel (7).

8. The stainless steel pipe welding apparatus according to claim 7, characterized in that: The turntable (8) is also provided with a set of circumferentially evenly arranged positioning grooves (9). The bracket (12) is fixedly provided with a first gas spring (10) on the upper side of one end corresponding to the positioning groove (9). The end of the telescopic rod of the first gas spring (10) is fixedly connected to a positioning ball (11). The positioning ball (11) can enter the positioning groove (9). The outer circle of the positioning groove (9) is arc-shaped. When the turntable (8) rotates, the positioning groove (9) can rotate with the turntable (8) and thus disengage from the positioning ball (11). As the turntable (8) rotates, the positioning ball (11) can enter the next positioning groove (9).

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