Welding tool for stainless steel pipe

Abstract

The invention belongs to the technical field of stainless steel pipe welding, and discloses a stainless steel pipe welding tool which comprises a base and further comprises fixing assemblies, the fixing assemblies are symmetrically arranged at the two ends of the top of the base, and one side of each fixing assembly is in meshed connection with a rotating assembly; through cooperation of the fixing assembly, the driving assembly and other structures, a special-shaped stainless steel pipe is conveniently clamped and fixed, through arrangement of the driving assembly, power for rotation is provided for a disc, through rotation of the disc, two first clamping plates and a second clamping plate are made to move in the direction of a stainless steel pipe body, and then the stainless steel pipe body is clamped and fixed. The two first clamping plates clamp and fix the two sides of the stainless steel pipe body, and meanwhile, the second clamping plate applies thrust to the top of the stainless steel pipe body, so that the stainless steel pipe body is stably fixed to the middle of the inner cavity of the supporting frame, a special-shaped stainless steel pipe is conveniently clamped and fixed, and then the convenience of subsequent welding operation is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of stainless steel pipe welding, in particular to a welding tool for a stainless steel pipe. 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 environments with higher requirements.

[0003] 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 do not match the shape of the I-shaped stainless steel pipe, and it is difficult to achieve close fit and stable clamping, which brings 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

[0004] 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.

[0005] To achieve the above object, the present invention provides the following technical solution: a welding tool for a stainless steel pipe, comprising a base, and further comprising:

[0006] A fixed component, wherein the fixed component is symmetrically arranged at two ends of the top of the base, and one side of the fixed component is meshedly connected with the rotating component;

[0007] A driving assembly, wherein the driving assembly is symmetrically arranged at two ends of the base;

[0008] A positioning assembly, wherein the positioning assembly is arranged in the middle of the top of the base, and a stainless steel pipe body is placed in the middle of the positioning assembly;

[0009] The fixing assembly includes a support frame, a disc is movably connected inside the support frame, three arc grooves are formed in an annular shape on the surface of the disc, and a clamping structure is provided inside the support frame;

[0010] 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 with a second clamping plate;

[0011] The positioning assembly comprises a placing platform, wherein two square plates are symmetrically connected inside the placing platform, two oppositely oriented inclined grooves are provided at both ends of the square plates, and a movable plate is fixedly connected to the bottom end of the square plates;

[0012] The rotating assembly includes a round rod, and two guide grooves are symmetrically formed on the surface of the round rod.

[0013] Preferably, 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 provided on one side of the slider.

[0014] Preferably, a connecting block is hingedly connected to one side of the disc close to the motor, the connecting block penetrates the outer wall of the support frame and extends to the outside of the support frame, and one end of the connecting block is movably clamped in the interior of the straight groove.

[0015] Preferably, a support plate is fixedly connected to the bottom end of the support frame, and a round block movably clamped in the arc groove is provided at one end of the second clamping plate and the two first clamping plates.

[0016] Preferably, the length of the first clamping plate is greater than the length 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.

[0017] Preferably, a slide groove for circumferentially limiting the first clamping plate and the second clamping plate is provided on the inner wall of the support frame, and a plurality of tooth blocks are provided on the side of the disc away from the connecting block.

[0018] Preferably, both ends of the round rod are movably connected to the inside of the base, and both ends of the round rod are fixedly connected to a gear plate, which is located outside the base and meshingly connected with the tooth blocks on the surface of the disc.

[0019] Preferably, the two guide grooves are oriented in opposite directions, and one end of the square plate close to the round rod is fixedly connected with a convex rod, and the convex rod is movably engaged in the interior of the guide groove.

[0020] Preferably, two groups of limiting plates are symmetrically arranged on the top of the placing table, and a second gasket is fixedly connected to one side of the limiting plates close to the stainless steel pipe body, and the second gasket and the first gasket are both made of rubber material.

[0021] 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 limit grooves that cooperate with the limit plate, and the inner wall of the placement table is provided with a square groove for limiting the square plate in the horizontal direction.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 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.

[0024] The present invention facilitates the centering correction of the welding points of the two stainless steel pipe bodies by cooperating between structures such as 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 their bottom ends 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 toward the stainless steel pipe body along the trajectory of the inclined groove, so that the two limit plates apply thrust to the two sides of the stainless steel pipe body in two opposite directions respectively, 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

[0025] Figure 1 It is a front schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a side schematic diagram of the overall structure of the present invention;

[0027] Figure 3 It is a schematic diagram of the front cross-section structure of the fixing component of the present invention;

[0028] Figure 4 It is a schematic diagram of the positional relationship between the fixing component and the driving component of the present invention;

[0029] Figure 5 It is a schematic diagram of the positional relationship between the positioning component and the rotating component of the present invention;

[0030] Figure 6 This is an exploded view of the positioning component of the present invention.

[0031] In the figure: 1. base; 2. fixing component; 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 component; 31. motor; 32. threaded rod; 33. slider; 34. straight groove; 4. positioning component; 41. placing table; 42. square plate; 43. inclined groove; 44. convex rod; 45. limit plate; 46. second gasket; 47. moving plate; 48. limit groove; 5. rotating component; 51. round rod; 52. gear plate; 53. guide groove; 6. stainless steel pipe body. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in 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.

[0033] like Figures 1 to 6 As shown, the present invention provides a welding tool for a stainless steel pipe, comprising a base 1, and further comprising:

[0034] A fixed component 2, the fixed component 2 is symmetrically arranged at two ends of the top of the base 1, and one side of the fixed component 2 is meshedly connected with a rotating component 5;

[0035] A driving assembly 3, wherein the driving assembly 3 is symmetrically arranged at two ends of the base 1;

[0036] A positioning assembly 4, which 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;

[0037] The fixing assembly 2 includes a support frame 21, a disc 22 is movably connected inside the support frame 21, three arc grooves 23 are formed in an annular shape on the surface of the disc 22, and a clamping structure 24 is provided inside the support frame 21;

[0038] 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 with a second clamping plate 242;

[0039] The positioning assembly 4 includes a placing platform 41, and two square plates 42 are symmetrically connected inside the placing platform 41. Two oppositely oriented inclined grooves 43 are formed at both ends of the square plate 42, and a movable plate 47 is fixedly connected to the bottom end of the square plate 42.

[0040] 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 .

[0041] 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 pipe body 6, and then, the two first clamping plates 241 clamp and fix the two sides of the stainless steel pipe body 6, and at the same time, the second clamping plate 242 applies a thrust to the top of the stainless steel pipe body 6, so that the stainless steel pipe body 6 is stably fixed in the middle of the inner cavity of the support frame 21, so as to facilitate the clamping and fixing of the special-shaped stainless steel pipe, thereby improving the convenience of subsequent welding operations.

[0042] like Figure 2 , Figure 3 and Figure 4 As shown, 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, 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 clamped in the inside of the straight groove 34.

[0043] The above scheme 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 connecting block 25 can slide inside the straight groove 34 while the slider 33 moves upward, 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.

[0044] like Figure 3 and Figure 4 As shown, a support plate 243 is fixedly connected to the bottom end of the support frame 21, 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 in the arc groove 23, the length of the first clamping plate 241 is greater than the length of the second clamping plate 242, and the first clamping plate 241, the second clamping plate 242 and the support plate 243 are provided with a first gasket 244 on the side close to the stainless steel pipe body 6, and 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, and a plurality of tooth blocks are provided on the side of the disc 22 away from the connecting block 25, and both ends of the round rod 51 are movably connected to the inside of the base 1, and both ends of the round rod 51 are fixedly connected to a gear plate 52, which is located outside the base 1 and is meshed with the tooth blocks on the surface of the disc 22.

[0045] The above solution is adopted: the length of the first clamping plate 241 is greater than the length of the second clamping plate 242, and its function is that 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.

[0046] like Figure 5 and Figure 6 As shown, the two guide grooves 53 are oriented in opposite directions, and one end of the square plate 42 close to the round rod 51 is fixedly connected to the convex rod 44, and the convex rod 44 is movably clamped in the inside of the guide groove 53. Two groups of limit plates 45 are symmetrically arranged on the top of the placement table 41, and the side of the limit plates 45 close to the stainless steel pipe body 6 is fixedly connected to the second gasket 46, and 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 abutted against one end of the stainless steel pipe body 6 in the initial state. A plurality of limit grooves 48 cooperating with the limit plates 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.

[0047] By adopting the above scheme: 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 track of the guide groove 53, thereby preventing too much gap from being left between the two stainless steel pipe bodies 6. After the square plate 42 moves, the limiting plate 45 moves toward the stainless steel pipe body 6 along the track of the inclined groove 43, so that the two limiting plates 45 apply thrust to the two sides of the stainless steel pipe body 6 in two opposite directions respectively, thereby centering and limiting the opposite ends of the two stainless steel pipe bodies 6, thereby improving the subsequent welding accuracy;

[0048] 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 pipe 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 pipe bodies 6 are in the process of welding, vibration may be generated 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 pipe body 6, and further improving the overall accuracy of welding of special-shaped stainless steel pipes.

[0049] The working principle and use 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, and then the slider 33 moves upward through the threaded connection with the threaded rod 32. When the slider 33 moves, it drives the connecting block 25 to move upward through the straight groove 34, and then the connecting block 25 drives the disc 22 to rotate. At the same time, one end of the connecting block 25 also slides inside the straight groove 34;

[0050] When the disc 22 rotates, its tooth block is meshed with the guide groove 53, so that the two guide grooves 53 drive the round rod 51 to rotate, and then the convex rod 44 slides along the track of the guide groove 53. Since the two guide grooves 53 are in opposite directions, the two convex rods 44 drive the two square plates 42 to move toward each other under the action of the horizontal limit of the square groove. When the square plate 42 moves, the moving plate 47 is driven 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 too much gap between the two stainless steel pipe bodies 6 from affecting the welding process.

[0051] When the square plate 42 of the arc groove 23 moves, the two limit plates 45 are driven to slide along the two tracks facing the opposite inclined grooves 43, and then the two limit plates 45 move toward each other under the action of the limit groove 48. After the limit plates 45 move, they drive the second gasket 46 to abut against the side wall of the stainless steel pipe body 6. Then, the two groups of second gaskets 46 apply thrust to the two sides of the stainless steel pipe body 6 in two opposite directions, so as to center and limit the opposite ends of the two stainless steel pipe bodies 6, so as to make the positions where the two stainless steel pipe bodies 6 need to be welded fit closely, thereby improving the subsequent welding accuracy;

[0052] 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.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used 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", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including 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.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding tool for a stainless steel pipe, comprising a base (1), characterized in that: Also includes: A fixed component (2), wherein the fixed component (2) is symmetrically arranged at two ends of the top of the base (1), and one side of the fixed component (2) is meshingly connected with the rotating component (5); A driving assembly (3), wherein the driving assembly (3) is symmetrically arranged at two ends of the base (1); A positioning component (4), wherein the positioning component (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 component (4); The fixing assembly (2) comprises a support frame (21), a disc (22) is movably connected inside the support frame (21), three arc grooves (23) are formed 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 first clamping plates (241) which are symmetrically arranged, 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) comprises a placing platform (41), the interior of the placing platform (41) is symmetrically connected with two square plates (42), two oppositely oriented inclined grooves (43) are provided at both ends of the square plate (42), and a movable plate (47) is fixedly connected to the bottom end of the square plate (42); The rotating assembly (5) comprises a round rod (51), and two guide grooves (53) are symmetrically provided on the surface of the round rod (51).

2. The welding tool for stainless steel pipe according to claim 1, characterized in that: The driving assembly (3) comprises 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 provided on one side of the slider (33).

3. The welding tool for stainless steel pipe according to claim 2, characterized in that: A connecting block (25) is hingedly connected to one side of the disc (22) close to the motor (31); the connecting block (25) penetrates 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 interior of the straight groove (34).

4. The welding tool for stainless steel pipe 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 the second clamping plate (242) and the two first clamping plates (241) are both provided with a round block that is movably clamped inside the arc groove (23).

5. The welding tool for stainless steel pipe according to claim 4, 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).

6. The welding tool for stainless steel pipe according to claim 4, 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), and a plurality of tooth blocks are provided on the side of the disc (22) away from the connecting block (25).

7. The welding tool for stainless steel pipe according to claim 1, characterized in that: Both ends of the round rod (51) are movably connected to the inside of the base (1), and 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 a tooth block on the surface of the disc (22).

8. The welding tool for stainless steel pipe according to claim 1, characterized in that: The two guide grooves (53) are oriented in opposite directions, and one end of the square plate (42) close to the round rod (51) is fixedly connected with a protruding rod (44), and the protruding rod (44) is movably clamped in the interior of the guide groove (53).

9. The welding tool for stainless steel pipe according to claim 1, characterized in that: Two groups of limiting plates (45) are symmetrically arranged on the top of the placing 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), and the second gasket (46) and the first gasket (244) are both made of rubber material.

10. The welding tool for stainless steel pipe according to claim 1, characterized in that: The movable plate (47) is L-shaped. In an initial state, the movable plate (47) abuts against one end of the stainless steel pipe body (6). The top of the placement platform (41) is provided with a plurality of limiting grooves (48) that cooperate with 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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