Welding tool for stainless steel pipe welding production

Abstract

The utility model relates to the technical field of pipeline welding, in particular to a welding tool for stainless steel pipe welding production, which comprises a rack, a support plate, a piston cylinder, a telescopic rod I, a telescopic rod II, a clamping block I and the like. The welding tool comprises a rack, the rack is a mounting carrier of the welding tool, a supporting plate is fixedly connected to the top of the rack, a piston cylinder is fixedly connected into the supporting plate in a penetrating mode, the top of the piston cylinder communicates with a first telescopic rod, a first clamping block is installed at the telescopic end of the first telescopic rod, and the first clamping block is matched with the supporting plate to vertically clamp a stainless steel pipe. The sliding plate is pushed through the multi-stage telescopic air cylinder, the sliding plate elastically acts on the connecting plate, so that the piston rod can elastically compress air pressure in the piston cylinder, the air pressure respectively acts on the telescopic rod I and the telescopic rod II, and the clamping block I and the clamping block II can elastically clamp a stainless steel pipe. And therefore, the effect of accurately controlling the clamping force adaptive to the stainless steel pipes with different sizes is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline welding, in particular to a welding tool for stainless steel pipe welding production. Background Art

[0002] A stainless steel pipe is a hollow steel pipe that is not easily rusted, with characteristics such as good corrosion resistance, high strength, and beauty. It is widely used in industrial conveying pipelines such as petroleum, chemical industry, medical treatment, food, light industry, and mechanical instruments, as well as mechanical structure components. In the manufacturing process of stainless steel pipes, welding is a very crucial link. The design and use of welding tools directly affect the welding quality and production efficiency. With the development of the manufacturing industry, the demand for stainless steel pipes is increasing day by day, especially for higher quality and precision requirements. Although traditional manual welding is flexible, its efficiency is low and it is difficult to ensure consistent quality. Therefore, developing special welding tools has become an important means to improve welding quality and production efficiency.

[0003] Current welding tool jigs have some limitations when dealing with right-angle welding of stainless steel pipes. For example, in terms of adjusting the clamping force, they rely on a lead screw adjustment mechanism, which is not only cumbersome to operate but also may lead to insufficient or excessive clamping force due to improper adjustment, thereby affecting the welding quality and production efficiency. In addition, the existing jig designs usually only clamp part of the surface of the stainless steel pipe, rather than fixing all four sides simultaneously in all directions, which further limits its stability and application scope. To improve this situation, a more flexible and efficient clamping mechanism can be considered. Therefore, we have designed a welding tool for stainless steel pipe welding production to achieve the effect of stably clamping right-angle welded stainless steel pipes. Summary of the Utility Model

[0004] In order to overcome the disadvantages that the operation of traditional lead screw adjustment clamping is cumbersome when right-angle welding existing stainless steel pipes and the appropriate clamping force cannot be accurately controlled, a welding tool for stainless steel pipe welding production is provided.

[0005] The technical solution is as follows: A welding tooling for stainless steel pipe welding production, including a frame, a support plate, a piston cylinder, a telescopic rod I, a telescopic rod II, a clamping block I, a clamping block II, a piston rod, a driving component and a limiting plate. The frame is the installation carrier of this welding tooling. A support plate is fixedly connected to the top of the frame. A piston cylinder is fixedly connected through the support plate. A telescopic rod I is communicated with the top of the piston cylinder. A clamping block I is installed at the telescopic end of the telescopic rod I. The clamping block I cooperates with the support plate to vertically clamp the stainless steel pipe. Two telescopic rods II are communicated with the side of the piston cylinder. The telescopic rods II are vertically distributed on the side of the piston cylinder. Clamping blocks II are installed at the telescopic ends of the telescopic rods II. Among them, the stroke of the clamping block I is greater than the stroke of the clamping block II. A piston rod is arranged in the piston cylinder. The piston rod slides through the bottom of the piston cylinder. A driving component is arranged at the bottom of the frame. The driving component is used to drive the piston rod to move up and down. Limiting plates are fixedly connected to the adjacent sides of the support plate far from the piston cylinder. The limiting plates cooperate with the clamping blocks II to horizontally clamp the stainless steel pipe.

[0006] As a further preferred solution, the driving component includes a connecting plate, a guide rod, a sliding plate, a spring and a multi-stage telescopic cylinder. The lower end of the piston rod is fixedly connected with a connecting plate. A guide rod is fixedly connected to the lower side of the connecting plate. A sliding plate is slidably installed on the guide rod. A spring is sleeved between the connecting plate and the guide rod of the sliding plate. A multi-stage telescopic cylinder is fixedly connected to the lower side of the support plate. The telescopic end of the multi-stage telescopic cylinder is connected with the sliding plate.

[0007] As a further preferred solution, the clamping block I is an L-shaped clamping plate. The telescopic end of the telescopic rod I and the bending point of the clamping block I are detachably connected.

[0008] As a further preferred solution, it further includes rubber blocks. Rubber blocks are arranged on the clamping surfaces of the clamping block I and the clamping block II. The rubber blocks can effectively buffer the clamping pressure of the clamping block I and the clamping block II.

[0009] As a further preferred solution, it further includes a support plate, an electric push rod, an extension plate and a connecting rod. A support plate is fixedly connected to the bottom of the support plate near the limiting plate. An electric push rod is installed on the support plate. A chute is opened at one end of the limiting plate near the top corner. An extension plate is slidably connected in the chute of the limiting plate. A connecting rod is fixedly connected to the extension plate. The connecting rod penetrates through the limiting plate. The push rod of the electric push rod is connected with the connecting rod.

[0010] As a further preferred solution, the extension plate on the limiting plate can extend to be flush with the adjacent top corner of the support plate. Buffer pads are arranged on the clamping surfaces of the limiting plate and the extension plate.

[0011] Compared with the prior art, the utility model has the following advantages: 1. The utility model drives the sliding plate through a multi-stage telescopic cylinder, and through the elastic action of the sliding plate on the connecting plate, the piston rod can elastically compress the air pressure in the piston cylinder, and through the air pressure acting on the telescopic rod I and the telescopic rod II respectively, the clamping block I and the clamping block II can elastically clamp on the stainless steel pipe, so as to achieve the effect of accurately controlling the clamping force suitable for stainless steel pipes of different sizes.

[0012] 2. The utility model can set the clamping block I and the clamping block II at the same time, and cooperate with the support plate and the limiting plate to perform multi-directional limiting clamping on the stainless steel pipe for right-angle processing, so that stainless steel pipes of various shapes can be effectively limited on the support plate for welding processing, improving the applicable range of the welding tooling.

[0013] 3. The utility model can also set an extendable extension plate on the limiting plate. When it is necessary to accurately align two steel pipes for right-angle processing, the extension plate is driven by an electric push rod to extend from the limiting plate and form a right angle. The welding personnel only need to push the two stainless steel pipes against the limiting plate to achieve right-angle alignment, saving the workload of manual assistance adjustment with tools and improving the welding efficiency of the stainless steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 is a three-dimensional structural schematic diagram of parts such as the piston cylinder, the clamping block I and the clamping block II of the present utility model.

[0016] Figure 3 is a cross-sectional view of parts such as the piston cylinder and the piston rod of the utility model.

[0017] Figure 4 is a three-dimensional structural schematic diagram of parts such as the support plate and the limiting block of the utility model.

[0018] The meanings of the reference numerals in the drawings: 1. Frame, 101. Support plate, 2. Piston cylinder, 201. Telescopic rod I, 202. Telescopic rod II, 3. Piston rod, 301. Connecting plate, 4. Clamping block I, 5. Clamping block II, 6. Guide rod, 7. Sliding plate, 8. Spring, 9. Multi-stage telescopic cylinder, 10. Limiting plate, 11. Support plate, 12. Electric push rod, 13. Extension plate, 131. Connecting rod, 14. Rubber block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] Embodiment: A welding tool for stainless steel pipe welding production, as Figure 1 and Figure 2 shown, including a frame 1, a support plate 101, a piston cylinder 2, a first telescopic rod 201, a second telescopic rod 202, a first clamping block 4, a second clamping block 5, a piston rod 3, a driving component and a limiting plate 10. The frame 1 is an installation carrier of this welding tool. A support plate 101 is fixedly connected to the top of the frame 1. A piston cylinder 2 is fixedly connected through the support plate 101. A first telescopic rod 201 is communicated with the top of the piston cylinder 2. A first clamping block 4 is installed at the telescopic end of the first telescopic rod 201. The first clamping block 4 cooperates with the support plate 101 to vertically clamp the stainless steel pipe. Two second telescopic rods 202 are communicated with the side surface of the piston cylinder 2. The second telescopic rods 202 are vertically distributed on the side surface of the piston cylinder 2. Second clamping blocks 5 are installed at the telescopic ends of the second telescopic rods 202. Among them, the stroke of the first clamping block 4 is greater than the stroke of the second clamping block 5. A piston rod 3 is arranged in the piston cylinder 2. The piston rod 3 slidably penetrates through the bottom of the piston cylinder 2. A driving component is arranged at the bottom of the frame 1. The driving component is used to drive the piston rod 3 to move up and down. Limiting plates 10 are fixedly connected to the adjacent side edges of the support plate 101 far from the piston cylinder 2. The limiting plates 10 cooperate with the second clamping blocks 5 to horizontally clamp the stainless steel pipe.

[0021] As Figure 2 shown, the driving component includes a connecting plate 301, a guide rod 6, a sliding plate 7, a spring 8 and a multi-stage telescopic cylinder 9. The lower end of the piston rod 3 is fixedly connected with the connecting plate 301. A guide rod 6 is fixedly connected to the lower side of the connecting plate 301. A sliding plate 7 is slidably installed on the guide rod 6. A spring 8 is sleeved between the connecting plate 301 and the guide rod 6 between the sliding plates 7. A multi-stage telescopic cylinder 9 is fixedly connected to the lower side of the support plate 101. The telescopic end of the multi-stage telescopic cylinder 9 is connected with the sliding plate 7. The multi-stage telescopic cylinder 9 drives the piston rod 3 to be pulled in and out in the piston cylinder 2 through the telescopic movement of the telescopic end, so as to realize the clamping and fixing of the stainless steel pipe by the first clamping block 4 and the second clamping block 5 by changing the air pressure change in the piston cylinder 2.

[0022] As Figure 3 shown, the first clamping block 4 is an L-shaped clamping plate. The telescopic end of the first telescopic rod 201 and the bending point of the first clamping block 4 are detachably connected.

[0023] As shown in Figure 2 and Figure 3 shown, it further includes a rubber block 14. Rubber blocks 14 are arranged on the clamping surfaces of the clamping block I 4 and the clamping block II 5. The rubber blocks 14 can effectively buffer the clamping pressure of the clamping block I 4 and the clamping block II 5, and avoid deformation or rupture of the clamped stainless steel pipe.

[0024] As shown in Figure 1 and Figure 4 shown, it further includes a support plate 11, an electric push rod 12, an extension plate 13 and a connecting rod 131. A support plate 11 is fixedly connected to the bottom of the support plate 101 close to the limit plate 10. An electric push rod 12 is installed on the support plate 11. A chute is opened at one end close to the top corner on the limit plate 10. An extension plate 13 is slidably connected in the chute of the limit plate 10. A connecting rod 131 is fixedly connected to the extension plate 13. The connecting rod 131 penetrates through the limit plate 10, and the push rod of the electric push rod 12 is connected to the connecting rod 131; the extension plate 13 on the limit plate 10 can extend to be flush with the adjacent top corner of the support plate 101. Buffer pads are arranged on the clamping surfaces of the limit plate 10 and the extension plate 13. While increasing the friction of the stainless steel pipe, the buffer pads are adapted to the rubber blocks 14 for buffering clamping.

[0025] When it is necessary to perform right-angle welding on the stainless steel pipe, first place the two steel pipes that need to be welded at right angles on the support plate 101, and push them against the limiting plate 10 to the top corners of the support plate 101 respectively. When it is difficult to accurately align the two vertically welded stainless steel pipes, the electric push rod 12 can be activated. The electric push rod 12 drives the rod forward through the telescopic end, and the forward-moving connecting rod 131 drives the extension plate 13 to extend from the limiting plate 10 to the top corner of the support plate 101. At this time, the two stainless steel pipes are pushed to the top angle formed by the extension plate 13. The right-angle welding end of the stainless steel pipe can be made flush, and then the multi-stage telescopic cylinder 9 is activated. The telescopic end of the multi-stage telescopic cylinder 9 will drive the sliding plate 7 to move upward. At this time, the upward sliding plate 7 will push the connecting plate 301 upward through the spring 8 under the guidance of the guide rod 6. The upward connecting plate 301 will elastically act on the piston rod 3, so that the piston rod 3 is pushed upward in the piston cylinder 2. The gas squeezed by the piston rod 3 in the piston cylinder 2 will be respectively passed into the telescopic rod I 201 and the telescopic rod II 202. At this time, the enlarged internal space of the telescopic rod I 201 The air pressure will act on its telescopic end, causing the telescopic end of the telescopic rod Ⅰ201 to push the clamping block Ⅰ4 downward to move downward. At the same time, the increased air pressure inside the telescopic rod 2 at two locations will also act on its telescopic end, causing the telescopic ends of the telescopic rod Ⅱ202 to push the clamping block Ⅱ5 toward the direction of the matching limit plate 10. Since the stroke of the clamping block Ⅰ4 is greater than the stroke of the clamping block Ⅱ5, the clamping block Ⅱ5 pushed by the telescopic end of the telescopic rod Ⅱ202 will first be squeezed on the stainless steel pipe limited by the limit plate 10, so that the stainless steel pipe can be stably limited in the clamping block in the horizontal direction. Ⅱ5 and the limiting plate 10, and the clamping block Ⅰ4 pushed by the telescopic end of the telescopic rod Ⅰ201 will be squeezed on the stainless steel pipe from above, so that the stainless steel pipe can be stably limited in the vertical direction between the clamping block Ⅰ4 and the support plate 101. When welding is required, the push rod of the electric push rod 12 drives the connecting rod 131 to be pulled back to its original position, so that the connecting rod 131 can drive the extension plate 13 to be reset and retracted into the limiting plate 10, so that the two vertically limited stainless steel pipes can expose the welding ends at the right angles for subsequent welding work.

[0026] The technical principles of the embodiments of the present utility model are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present utility model, and cannot be interpreted in any way as limiting the protection scope of the embodiments of the present utility model. Based on the explanations here, technicians in this field can think of other specific implementation methods of the embodiments of the present utility model without creative work, and these methods will fall within the protection scope of the embodiments of the present utility model.

Claims

1. A welding tool for stainless steel pipe welding production, comprising a frame (1), a support plate (101), and a piston cylinder (2), wherein the frame (1) is a mounting carrier of the welding tool, the top of the frame (1) is fixedly connected to the support plate (101), and the support plate (101) is penetrated and fixedly connected to the piston cylinder (2), characterized in that: The invention also comprises a telescopic rod I (201), a telescopic rod II (202), a clamping block I (4), a clamping block II (5), a piston rod (3), a driving assembly and a limit plate (10); the top of the piston cylinder (2) is connected to the telescopic rod I (201); the telescopic end of the telescopic rod I (201) is installed with a clamping block I (4); the side of the piston cylinder (2) is connected to two telescopic rods II (202); the telescopic rods II (202) are vertically distributed on the side of the piston cylinder (2); the telescopic rods II (202) are connected to the side of the piston cylinder (2); The telescopic ends of (202) are both installed with clamp blocks II (5), wherein the stroke of the clamp block I (4) is greater than the stroke of the clamp block II (5), a piston rod (3) is arranged in the piston cylinder (2), and the piston rod (3) slides through the bottom of the piston cylinder (2), a driving assembly is arranged at the bottom of the frame (1), and the driving assembly is used to drive the piston rod (3) to move up and down, and the adjacent sides of the support plate (101) away from the piston cylinder (2) are fixedly connected with limit plates (10).

2. A welding tool for stainless steel pipe welding production as claimed in claim 1, characterized in that: The driving assembly comprises a connecting plate (301), a guide rod (6), a sliding plate (7), a spring (8) and a multi-stage telescopic cylinder (9); the lower end of the piston rod (3) is fixedly connected to the connecting plate (301); the lower side of the connecting plate (301) is fixedly connected to the guide rod (6); the sliding plate (7) is slidably mounted on the guide rod (6); a spring (8) is sleeved between the guide rod (6) between the connecting plate (301) and the sliding plate (7); the lower side of the support plate (101) is fixedly connected to the multi-stage telescopic cylinder (9); the telescopic end of the multi-stage telescopic cylinder (9) is connected to the sliding plate (7).

3. A welding tool for stainless steel pipe welding production as claimed in claim 2, characterized in that: The clamping block I (4) is an L-shaped clamping plate, and the telescopic end of the telescopic rod I (201) and the bending point of the clamping block I (4) are detachably connected.

4. A welding tool for stainless steel pipe welding production as claimed in claim 3, characterized in that: It also includes a rubber block (14), and the clamping surfaces of the clamping block I (4) and the clamping block II (5) are both provided with the rubber block (14).

5. A welding tool for stainless steel pipe welding production as claimed in claim 4, characterized in that: The invention also comprises a support plate (11), an electric push rod (12), an extension plate (13) and a connecting rod (131); the support plate (11) is fixedly connected to the bottom of the support plate (101) near the limit plate (10); the electric push rod (12) is installed on the support plate (11); a sliding groove is opened at one end of the limit plate (10) near the top corner; the extension plate (13) is slidably connected in the sliding groove of the limit plate (10); the extension plate (13) is fixedly connected to the extension plate (13); the connecting rod (131) passes through the limit plate (10); the push rod of the electric push rod (12) is connected to the connecting rod (131).

6. A welding tool for stainless steel pipe welding production as claimed in claim 5, characterized in that: The extension plate (13) on the limiting plate (10) can be extended to be flush with adjacent top corners of the support plate (101), and the clamping surfaces of the limiting plate (10) and the extension plate (13) are both provided with buffer pads.

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