A welding tool for stainless steel pipe

Abstract

The present invention belongs to the technical field of stainless steel pipe welding, and discloses a welding tool for stainless steel pipe, comprising a base and also comprising: a fixing component, wherein the fixing component is symmetrically arranged at both ends of the top of the base, and one side of the fixing component is meshedly connected with a rotating component; through the cooperation between structures such as the fixing component and the driving component, it is convenient to clamp and fix the special-shaped stainless steel pipe, and by setting the driving component, the disc is provided with rotational power, and through the rotation of the disc, the two first clamping plates and the second clamping plate are respectively moved toward the direction of the stainless steel pipe body, and then the two first clamping plates clamp and fix the two sides of the stainless steel pipe body, and at the same time, the second clamping plate applies a thrust to the top of the stainless steel pipe body, thereby stably fixing the stainless steel pipe body in the middle of the inner cavity of the support frame, thereby facilitating the clamping and fixing of the special-shaped stainless steel pipe, thereby improving the convenience of subsequent welding operations.

Description

Technical Field

[0001] The invention belongs to the technical field of stainless steel pipe welding, in particular to a welding tool for stainless steel pipes. Background Art

[0002] Stainless steel pipe is a tubular object made of stainless steel material, which is widely used in construction, machinery, chemical industry, food processing and other industries. Stainless steel has excellent corrosion resistance, high temperature resistance and strength, making stainless steel pipe particularly suitable for use in demanding environments. Most of the existing stainless steel pipes are cylindrical, and in some occasions that require good bending resistance and specific spatial layout, I-shaped stainless steel pipes are generally used to better meet the requirements of load bearing and spatial layout. Most of the existing welding tools are designed for cylindrical stainless steel pipes. Therefore, their clamping parts are usually circular or arc-shaped, which does not match the shape of the I-shaped stainless steel pipe, making it difficult to achieve close fit and stable clamping, thereby bringing inconvenience to the welding operation of special-shaped stainless steel pipes. Therefore, a welding tool for stainless steel pipes is proposed to solve the problems raised in the background technology. Summary of the Invention

[0003] In order to solve the problems raised in the above background technology, the present invention provides a welding tool for stainless steel pipes, which has the advantage of conveniently clamping and fixing special-shaped stainless steel pipes.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: a welding tool for a stainless steel pipe, comprising a base, which further comprises:

[0005] A fixed component, wherein the fixed component is symmetrically arranged at both ends of the top of the base, and one side of the fixed component is engaged with the rotating component;

[0006] A driving assembly, wherein the driving assembly is symmetrically arranged at both ends of the base;

[0007] A positioning assembly is provided in the middle of the top of the base, and a stainless steel pipe body is placed in the middle of the positioning assembly;

[0008] The fixing assembly includes a support frame, a disc is movably connected to the support frame, three arc grooves are formed in the surface of the disc, and a clamping structure is provided inside the support frame;

[0009] The clamping structure comprises two symmetrically arranged first clamping plates, and the top end of the inner cavity of the support frame is movably connected to the second clamping plate;

[0010] The positioning assembly includes a placement platform, wherein two square plates are symmetrically connected inside the placement platform, two oppositely oriented inclined slots are provided at both ends of the square plates, and a movable plate is fixedly connected to the bottom end of the square plates;

[0011] The rotating assembly includes a round rod, and two guide grooves are symmetrically provided on the surface of the round rod;

[0012] The driving assembly includes a motor fixedly connected to the top of the base, the output shaft end of the motor is fixedly connected to a threaded rod, the external thread of the threaded rod is connected to a slider, and a straight groove is opened on one side of the slider;

[0013] A connecting block is hingedly connected to one side of the disc close to the motor. The connecting block passes through the outer wall of the support frame and extends to the outside of the support frame. One end of the connecting block is movably engaged with the inside of the straight groove.

[0014] A plurality of tooth blocks are provided on the side of the disc away from the connecting block. Both ends of the round rod are movably connected to the inside of the base. Both ends of the round rod are fixedly connected to a gear plate. The gear plate is located outside the base and meshes with the tooth blocks on the surface of the disc.

[0015] The two guide grooves are oriented in opposite directions. One end of the square plate close to the round rod is fixedly connected with a protruding rod, and the protruding rod is movably engaged in the interior of the guide groove.

[0016] Preferably, a support plate is fixedly connected to the bottom end of the support frame, and one end of the second clamping plate and the two first clamping plates are each provided with a round block that is movably clamped in the arc groove.

[0017] Preferably, the length of the first clamping plate is greater than that of the second clamping plate, and a first gasket is provided on one side of the first clamping plate, the second clamping plate and the support plate close to the stainless steel pipe body.

[0018] Preferably, the inner wall of the support frame is provided with a sliding groove for circumferentially limiting the first clamping plate and the second clamping plate.

[0019] Preferably, two groups of limiting plates are symmetrically arranged on the top of the placement table, and a second gasket is fixedly connected to one side of the limiting plates close to the stainless steel tube body, and the second gasket and the first gasket are both made of rubber material.

[0020] Preferably, the movable plate is L-shaped, and in the initial state, the movable plate abuts against one end of the stainless steel tube body. The top of the placement table is provided with a plurality of limiting grooves that cooperate with the limiting plate, and the inner wall of the placement table is provided with a square groove for limiting the square plate in the horizontal direction.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention facilitates the clamping and fixing of special-shaped stainless steel pipes through the cooperation between structures such as the fixing component and the driving component. By setting the driving component, the disc is provided with rotational power, and the two first clamping plates and the second clamping plate are respectively moved toward the direction of the stainless steel pipe body through the rotation of the disc. Subsequently, the two first clamping plates clamp and fix the two sides of the stainless steel pipe body. At the same time, the second clamping plate applies a thrust to the top of the stainless steel pipe body, thereby stably fixing the stainless steel pipe body in the middle of the inner cavity of the support frame, thereby facilitating the clamping and fixing of the special-shaped stainless steel pipe, thereby improving the convenience of subsequent welding operations. The present invention facilitates the centering correction of the welding points of the two stainless steel pipe bodies through the cooperation between the positioning component and the rotating component. The two guide grooves are oriented in opposite directions, so that when the round rod rotates, the convex rod can drive the two square plates and the movable plate at the bottom end thereof to move toward each other along the trajectory of the guide groove, thereby preventing excessive gaps from being left between the two stainless steel pipe bodies. After the square plate moves, the limit plate moves along the trajectory of the inclined groove toward the stainless steel pipe body, so that the two limit plates apply thrust to the two sides of the stainless steel pipe body in two opposite directions, thereby centering and limiting the opposite ends of the two stainless steel pipe bodies, thereby improving the subsequent welding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a front view schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a side view schematic diagram of the overall structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the front cross-section structure of the fixing component of the present invention;

[0026] Figure 4 Schematic diagram of the positional relationship between the fixing assembly and the driving assembly of the present invention;

[0027] Figure 5 This is a schematic diagram of the positional relationship between the positioning assembly and the rotating assembly of the present invention;

[0028] Figure 6This is an exploded view of the positioning assembly of the present invention. In the figure: 1. Base; 2. Fixed assembly; 21. Support frame; 22. Disc; 23. Arc groove; 24. Clamping structure; 241. First clamping plate; 242. Second clamping plate; 243. Support plate; 244. First gasket; 25. Connecting block; 3. Driving assembly; 31. Motor; 32. Threaded rod; 33. Slider; 34. Straight groove; 4. Positioning assembly; 41. Placement table; 42. Square plate; 43. Bevel groove; 44. Protruding rod; 45. Limiting plate; 46. Second gasket; 47. Moving plate; 48. Limiting groove; 5. Rotating assembly; 51. Round rod; 52. Gear plate; 53. Guide groove; 6. Stainless steel pipe body. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0030] like Figures 1 to 6 As shown, the present invention provides a welding tool for stainless steel pipes, including a base 1 and further comprising:

[0031] The fixed component 2 is symmetrically arranged at both ends of the top of the base 1, and one side of the fixed component 2 is engaged with the rotating component 5;

[0032] The driving components 3 are symmetrically arranged at both ends of the base 1;

[0033] The positioning assembly 4 is arranged in the middle of the top of the base 1, and a stainless steel pipe body 6 is placed in the middle of the positioning assembly 4;

[0034] The fixing assembly 2 includes a support frame 21, a disc 22 is movably connected to the support frame 21, and three arc grooves 23 are formed in the surface of the disc 22. A clamping structure 24 is provided inside the support frame 21.

[0035] The clamping structure 24 includes two symmetrically arranged first clamping plates 241, and the top end of the inner cavity of the support frame 21 is movably connected to the second clamping plate 242;

[0036] The positioning assembly 4 includes a placement platform 41. Two square plates 42 are symmetrically connected inside the placement platform 41. Two oppositely oriented inclined slots 43 are formed at both ends of the square plates 42. A movable plate 47 is fixedly connected to the bottom end of the square plates 42.

[0037] The rotating assembly 5 includes a round rod 51 , and two guide grooves 53 are symmetrically formed on the surface of the round rod 51 .

[0038] The above scheme is adopted: by setting up a driving component 3, a rotational power is provided to the disc 22, and through the rotation of the disc 22, the two first clamping plates 241 and the second clamping plate 242 are respectively moved toward the direction of the stainless steel tube body 6. Subsequently, the two first clamping plates 241 clamp and fix the two sides of the stainless steel tube body 6. At the same time, the second clamping plate 242 applies a thrust to the top of the stainless steel tube body 6, thereby stably fixing the stainless steel tube body 6 in the middle of the inner cavity of the support frame 21, thereby facilitating the clamping and fixing of the special-shaped stainless steel tube, thereby improving the convenience of subsequent welding operations.

[0039] like Figure 2 、 Figure 3 and Figure 4 As shown, the drive assembly 3 includes a motor 31 fixedly connected to the top of the base 1, the output shaft end of the motor 31 is fixedly connected to a threaded rod 32, the external thread of the threaded rod 32 is connected to a slider 33, a straight groove 34 is provided on one side of the slider 33, and a connecting block 25 is hinged on the side of the disc 22 close to the motor 31. The connecting block 25 passes through the outer wall of the support frame 21 and extends to the outside of the support frame 21. One end of the connecting block 25 is movably engaged in the inside of the straight groove 34.

[0040] The above solution is adopted: through the design of the straight groove 34, its function is that when the slider 33 drives the connecting block 25 to move upward through the straight groove 34, the length value between the connecting block 25 and the slider 33 will change. At this time, through the design of the straight groove 34, the slider 33 moves upward while the connecting block 25 can slide inside the straight groove 34, thereby compensating for the length difference between the connecting block 25 and the slider 33 when the slider 33 drives the disc 22 to rotate, thereby ensuring the normal operation of the device.

[0041] like Figure 3 and Figure 4 As shown, the bottom end of the support frame 21 is fixedly connected to a support plate 243, and one end of the second clamping plate 242 and the two first clamping plates 241 are provided with a round block that is movably clamped inside the arc groove 23. The length of the first clamping plate 241 is greater than the length of the second clamping plate 242. The first clamping plate 241, the second clamping plate 242 and the support plate 243 are close to the stainless steel pipe body 6. A first gasket 244 is provided. The inner wall of the support frame 21 is provided with a sliding groove for circumferentially limiting the first clamping plate 241 and the second clamping plate 242. A plurality of tooth blocks are provided on the side of the disc 22 away from the connecting block 25. Both ends of the round rod 51 are movably connected to the inside of the base 1. Both ends of the round rod 51 are fixedly connected to a gear plate 52. The gear plate 52 is located outside the base 1 and is meshed with the tooth blocks on the surface of the disc 22.

[0042] Adopting the above solution: the length of the first clamping plate 241 is greater than the length of the second clamping plate 242, and its function is to Figure 3 It can be seen that the stainless steel tube body 6 is in an I-shape. At this time, the distance between the left and right sides of the stainless steel tube body 6 is different from the distance between the upper and lower sides. At this time, the length value of the first clamping plate 241 is greater than the length value of the second clamping plate 242, thereby making up for the length difference between the two sides, so that the second clamping plate 242 can abut against the top of the stainless steel tube body 6 while the two first clamping plates 241 can also abut against the left and right sides of the stainless steel tube body 6, thereby effectively clamping and fixing the special-shaped stainless steel tube.

[0043] like Figure 5 and Figure 6 As shown, the two guide grooves 53 are in opposite directions, and the end of the square plate 42 close to the round rod 51 is fixedly connected to the protruding rod 44, and the protruding rod 44 is movably clamped in the inside of the guide groove 53. The top of the placement table 41 is symmetrically provided with two groups of limiting plates 45, and the side of the limiting plate 45 close to the stainless steel tube body 6 is fixedly connected to the second gasket 46. The second gasket 46 and the first gasket 244 are both made of rubber material. The movable plate 47 is L-shaped, and the movable plate 47 is in abutment with one end of the stainless steel tube body 6 in the initial state. A plurality of limiting grooves 48 that cooperate with the limiting plate 45 are provided on the top of the placement table 41, and a square groove for limiting the square plate 42 in the horizontal direction is provided on the inner wall of the placement table 41.

[0044] The above solution is adopted: the two guide grooves 53 are oriented in opposite directions, so that when the round rod 51 rotates, the protruding rod 44 can drive the two square plates 42 and the movable plate 47 at the bottom thereof to move toward each other along the trajectory of the guide groove 53, thereby preventing excessive gaps from being left between the two stainless steel tube bodies 6. After the square plate 42 moves, the limit plate 45 moves toward the stainless steel tube body 6 along the trajectory of the inclined groove 43, so that the two limit plates 45 apply thrust to the two sides of the stainless steel tube body 6 in two opposite directions, thereby centering and limiting the opposite ends of the two stainless steel tube bodies 6, thereby improving the subsequent welding accuracy;

[0045] The second gasket 46 and the first gasket 244 are both made of rubber material. Their function is that since the surface of the rubber gasket has a large friction force, the design of the second gasket 46 and the first gasket 244 can increase the friction force when clamping the stainless steel tube body 6, thereby making the clamping more stable and reliable. At the same time, the rubber material also has a good buffering and vibration reduction effect. When the two stainless steel tube bodies 6 are in the process of welding, they may vibrate due to external force. At this time, the rubber gasket can absorb and disperse these vibrations and impact forces, thereby reducing the impact on the stainless steel tube body 6, and thereby improving the overall accuracy of welding of special-shaped stainless steel tubes.

[0046] The working principle and usage process of the present invention are as follows: the operator places two stainless steel pipe bodies 6 to be welded together on the top of the placement table 41, and at the same time, the opposite ends of the two stainless steel pipe bodies 6 are located on the top of the support plate 243. Then, the operator starts the motor 31 to drive the threaded rod 32 to rotate, thereby causing the slider 33 to move upward through the threaded connection with the threaded rod 32. While the slider 33 moves, it drives the connecting block 25 to move upward through the straight groove 34, thereby causing the connecting block 25 to drive the disc 22 to rotate. At the same time, one end of the connecting block 25 also slides inside the straight groove 34.

[0047] As the disc 22 rotates, its teeth are meshed with the gear disc 52, thereby driving the round rod 51 to rotate through the two gear discs 52, thereby causing the protruding rod 44 to slide along the trajectory of the guide groove 53. Since the two guide grooves 53 are in opposite directions, the two protruding rods 44 drive the two square plates 42 to move toward each other under the action of the horizontal limit of the square groove. The movement of the square plate 42 drives the moving plate 47 to move synchronously, so that after the two moving plates 47 move toward each other, they respectively abut against the opposite ends of the two stainless steel pipe bodies 6 and squeeze the stainless steel pipe bodies 6 to move toward each other, thereby preventing excessive gaps from being left between the two stainless steel pipe bodies 6, which would affect the welding process.

[0048] When the square plate 42 of the arc groove 23 moves, it drives the two limiting plates 45 to slide along the two tracks facing the opposite oblique grooves 43. Subsequently, the two limiting plates 45 move toward each other under the action of the limiting groove 48. After the limiting plates 45 move, they drive the second gasket 46 to abut against the side wall of the stainless steel tube body 6. Subsequently, the two sets of second gaskets 46 apply thrust to the two sides of the stainless steel tube body 6 in two opposite directions, thereby aligning and limiting the opposite ends of the two stainless steel tube bodies 6, thereby making the positions of the two stainless steel tube bodies 6 to be welded closely fit, thereby improving the subsequent welding accuracy;

[0049] After the disc 22 rotates, the round blocks at one end of the two first clamping plates 241 and the second clamping plates 242 slide along the trajectory of the arc groove 23. Since the inner wall of the support frame 21 is provided with a sliding groove for circumferentially limiting the two, the two first clamping plates 241 and the second clamping plate 242 can only move horizontally and linearly along the trajectory of the arc groove 23 toward the direction of the stainless steel pipe body 6. When the slider 33 moves to the predetermined position, the two first clamping plates 241 and the second clamping plate 242 respectively abut against the side walls of the stainless steel pipe body 6, thereby clamping and fixing one end of the stainless steel pipe body 6. At the same time, through the design of the first gasket 244, the friction force is increased, thereby improving the stability of fixation and clamping. Finally, the operator manually welds the connection between the two stainless steel pipe bodies 6.

[0050] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A welding tool for stainless steel pipes, comprising a base (1), characterized in that: Also includes: A fixed component (2), the fixed component (2) being symmetrically arranged at both ends of the top of the base (1), and one side of the fixed component (2) being meshedly connected to the rotating component (5); A drive assembly (3), wherein the drive assembly (3) is symmetrically arranged at both ends of the base (1); A positioning assembly (4), wherein the positioning assembly (4) is arranged in the middle of the top end of the base (1), and a stainless steel pipe body (6) is placed in the middle of the positioning assembly (4); The fixing assembly (2) includes a support frame (21), a disc (22) is movably connected to the interior of the support frame (21), three arc grooves (23) are provided in an annular shape on the surface of the disc (22), and a clamping structure (24) is provided inside the support frame (21); The clamping structure (24) comprises two symmetrically arranged first clamping plates (241), and the top end of the inner cavity of the support frame (21) is movably connected to a second clamping plate (242); The positioning assembly (4) includes a placement table (41), the interior of the placement table (41) is symmetrically connected to two square plates (42), two oppositely oriented inclined grooves (43) are provided at both ends of the square plate (42), and the bottom end of the square plate (42) is fixedly connected to a movable plate (47); The rotating assembly (5) includes a round rod (51), and two guide grooves (53) are symmetrically provided on the surface of the round rod (51); The driving assembly (3) includes a motor (31) fixedly connected to the top of the base (1), the output shaft end of the motor (31) is fixedly connected to a threaded rod (32), the external thread of the threaded rod (32) is connected to a slider (33), and a straight groove (34) is formed on one side of the slider (33); A connecting block (25) is hingedly connected to one side of the disc (22) close to the motor (31), the connecting block (25) passes through the outer wall of the support frame (21) and extends to the outside of the support frame (21), and one end of the connecting block (25) is movably engaged in the interior of the straight groove (34); A plurality of tooth blocks are provided on one side of the circular disc (22) away from the connecting block (25); both ends of the circular rod (51) are movably connected to the inside of the base (1); both ends of the circular rod (51) are fixedly connected to a gear plate (52); the gear plate (52) is located outside the base (1) and is meshed with the tooth blocks on the surface of the circular disc (22); The two guide grooves (53) are oriented in opposite directions. One end of the square plate (42) close to the round rod (51) is fixedly connected to a protruding rod (44), and the protruding rod (44) is movably engaged in the interior of the guide groove (53).

2. The stainless steel pipe welding tool according to claim 1, characterized in that: The bottom end of the support frame (21) is fixedly connected to a support plate (243), and one end of each of the second clamping plate (242) and the two first clamping plates (241) is provided with a round block that is movably clamped inside the arc groove (23).

3. The stainless steel pipe welding tool according to claim 2, characterized in that: The length of the first clamping plate (241) is greater than the length of the second clamping plate (242), and a first gasket (244) is provided on one side of the first clamping plate (241), the second clamping plate (242), and the support plate (243) close to the stainless steel pipe body (6).

4. The stainless steel pipe welding tool according to claim 2, characterized in that: The inner wall of the support frame (21) is provided with a sliding groove for circumferentially limiting the first clamping plate (241) and the second clamping plate (242).

5. The stainless steel pipe welding tool according to claim 3, characterized in that: Two groups of limiting plates (45) are symmetrically arranged on the top of the placement platform (41), and a second gasket (46) is fixedly connected to one side of the limiting plates (45) close to the stainless steel pipe body (6). The second gasket (46) and the first gasket (244) are both made of rubber material.

6. The stainless steel pipe welding tool according to claim 5, characterized in that: The movable plate (47) is L-shaped. In the initial state, the movable plate (47) abuts against one end of the stainless steel tube body (6). The top of the placement platform (41) is provided with a plurality of limiting grooves (48) that match the limiting plate (45). The inner wall of the placement platform (41) is provided with a square groove for limiting the square plate (42) in the horizontal direction.

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