Tube plate T-shaped girth welding tool

Abstract

The utility model discloses a T-shaped girth welding tool for a tube plate, which relates to the technical field of welding tools and comprises a support seat, an annular plate is arranged above the support seat, a butt joint ring is integrally formed at the top end of the annular plate, a pipeline is sleeved on the outer wall of the butt joint ring, the pipeline is positioned above the annular plate, and the butt joint ring is arranged on the support seat. The supporting seat is provided with a positioning mechanism used for conducting self-positioning calibration on the circle center of the pipeline, the circle center of the annular plate and the circle center of the butt joint ring. By means of the positioning mechanism, the annular plate can be conveniently clamped, the circle centers of the pipeline, the annular plate and the butt joint ring can be automatically calibrated and aligned through overturning, the situation of automatic displacement of the pipeline in the welding process is effectively prevented, and therefore the welding efficiency of the pipeline, the annular plate and the butt joint ring can be further improved.

Description

Technical Field

[0001] This utility model relates to the field of welding tooling technology, specifically a T-shaped circumferential weld tooling for tube sheets. Background Technology

[0002] A tube sheet T-type circumferential weld is a circumferential weld formed at the intersection of a pipe and a ring-shaped plate connected by a T-shaped structure. The ring-shaped plate consists of a ring plate and a butt ring, and is widely used at the connection between pipes and plates in equipment such as heat exchangers and pressure vessels. Welding fixtures are non-standard devices specifically designed for welding processes, used to accurately position parts, control welding deformation, assist welding operations, and improve production efficiency.

[0003] In the current T-shaped ring weld process, in order to achieve the welding requirements of a full penetration weld, the gap between the butt ring and the pipe section needs to be 1-3mm, and the butt ring needs to protrude 3-4mm from the pipe section. This is to facilitate the welding operation between the pipe and the ring plate. However, in the current welding process, the pipe will be displaced to a certain extent, which makes it difficult to align during welding and affects the welding efficiency of the pipe, ring plate and butt ring. Utility Model Content

[0004] The purpose of this utility model is to provide a T-shaped circumferential weld tooling for tube sheets to solve the problem of workpiece misalignment and displacement during the existing circumferential weld process.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A T-shaped circumferential welder for tube sheet includes a support base, an annular plate above the support base, a butt ring integrally formed at the top of the annular plate, a pipe sleeved on the outer wall of the butt ring, the pipe being located above the annular plate, and a positioning mechanism on the support base for self-positioning calibration of the center of the pipe, the annular plate, and the butt ring.

[0007] The positioning mechanism includes a flipping component disposed on the support base;

[0008] The flipping assembly includes: a stepper motor installed at one end of the support base, a connecting flap fixedly connected to the output end of the stepper motor, the connecting flap being located inside the support base, the connecting flap contacting the lower surface of the annular plate, and the connecting flap being rotatably connected to the support base via a rotating shaft;

[0009] The support base is provided with a limit component.

[0010] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0011] In one alternative: the limiting component is a fixed baffle fixedly connected to the inside of one side of the support base, and the fixed baffle is in contact with the lower surface of one side of the connecting flap;

[0012] The connecting flap is equipped with a rotating component.

[0013] In one alternative embodiment: the rotating assembly includes: a DC motor mounted on the bottom end of the connecting flap, the DC motor being located on one side of the fixed baffle, the output end of the DC motor being fixedly connected to a limiting turntable, the limiting turntable being located inside the connecting flap, and the limiting turntable being rotatably connected to the connecting flap via a rotating shaft;

[0014] The connecting flap is equipped with a clamping component.

[0015] In one alternative embodiment: the clamping assembly includes: a plurality of limiting pressure rods circumferentially and equidistantly arranged on the upper surface of the connecting flap plate, the plurality of limiting pressure rods contacting the inner wall of the annular plate, the plurality of limiting pressure rods penetrating the connecting flap plate to the outside of the bottom end of the limiting turntable, and an arc-shaped sliding groove for sliding the limiting pressure rods is provided at the position where the limiting turntable connects with the plurality of limiting pressure rods;

[0016] The limiting pressure rod is equipped with an elastic component.

[0017] In one alternative: the elastic component is an elastic block fixedly connected to the top of the limiting pressure rod, and the elastic block is in contact with the inner wall of the pipe;

[0018] The connecting flap is equipped with a sliding component.

[0019] In one alternative embodiment: the sliding assembly includes: a plurality of sliding sleeves circumferentially and equidistantly arranged inside the connecting flap, the plurality of sliding sleeves being located at the bottom ends of a plurality of limiting pressure rods, the plurality of sliding sleeves being fixedly connected to the plurality of limiting pressure rods, and a linear groove for sliding the limiting pressure rods and sliding sleeves being provided at the junction of the connecting flap with the limiting pressure rods and sliding sleeves;

[0020] The connecting flap is equipped with a guide component.

[0021] In one alternative embodiment: the guide assembly includes: a plurality of fixed guide rods circumferentially and equidistantly fixed inside the connecting flap, and a plurality of sliding sleeves respectively slidably sleeved on the outer walls of the plurality of fixed guide rods.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] This invention, through the setting of a positioning mechanism, can conveniently clamp the annular plate, and through flipping, automatically align the center of the pipe with the annular plate and the mating ring, effectively preventing the pipe from automatically shifting during the welding process, thereby further improving the efficiency of welding the pipe, annular plate and mating ring. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model.

[0025] Figure 2 This is a schematic diagram of the internal structure of the support base of this utility model.

[0026] Figure 3 This is a schematic diagram of the internal structure of the connecting flap of this utility model.

[0027] Figure 4 for Figure 2 A magnified schematic diagram of the structure at point A in the diagram.

[0028] Figure reference numerals: 1. Support base; 201. Elastic pressure block; 202. Limiting pressure rod; 203. Linear slide; 204. Limiting turntable; 205. Arc-shaped slide; 206. DC motor; 207. Sliding sleeve block; 208. Fixed guide rod; 209. Connecting flap; 2010. Fixed baffle; 2011. Stepper motor; 3. Pipe; 4. Annular plate; 5. Connecting ring. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0030] In one embodiment, such as Figures 1-4 As shown, a T-shaped circumferential weld tooling for tube sheet includes a support base 1, an annular plate 4 is provided above the support base 1, a butt ring 5 is integrally formed at the top of the annular plate 4, a pipe 3 is sleeved on the outer wall of the butt ring 5, the pipe 3 is located above the annular plate 4, and a positioning mechanism is provided on the support base 1 for self-positioning calibration of the center of the pipe 3, the annular plate 4, and the butt ring 5.

[0031] The positioning mechanism includes: a flipping component disposed on the support base 1;

[0032] The flipping assembly includes: a stepper motor 2011 installed at one end of the support base 1, a connecting flap 209 fixedly connected to the output end of the stepper motor 2011, the connecting flap 209 being located inside the support base 1, the connecting flap 209 being in contact with the lower surface of the annular plate 4, and the connecting flap 209 being rotatably connected to the support base 1 via a rotating shaft.

[0033] A limit component is provided on the support base 1;

[0034] The limiting component is a fixed baffle 2010 fixedly connected to the inside of one side of the support base 1. The fixed baffle 2010 is in contact with the lower surface of one side of the connecting flap 209.

[0035] A rotating component is provided on the connecting flap 209;

[0036] In this embodiment, when in use, the stepper motor 2011 is started to drive the connecting flap 209 to flip. At this time, the connecting flap 209 separates from the outer wall of the fixed baffle 2010 by flipping until the connecting flap 209 flips to a vertical state.

[0037] Then, the outer wall of the end of the annular plate 4 away from the docking ring 5 is fitted together with the outer wall of the connecting flap 209. Then, the pipe 3 is pushed to fit onto the outer wall of the docking ring 5, and the distance between the end of the pipe 3 and the outer wall of the annular plate 4 is controlled. Then, the annular plate 4 can be conveniently clamped by the positioning mechanism. In this process, the positioning mechanism can effectively prevent the pipe 3 from automatically shifting during the welding process.

[0038] Then, the stepper motor 2011 is started to drive the connecting flap 209 to flip and reset. At the same time, the positioning mechanism can drive the pipe 3, the annular plate 4, and the docking ring 5 to flip to a vertical state. When the connecting flap 209 contacts the outer wall of the fixed baffle 2010, the pipe 3 is completely vertical. At the same time, multiple elastic pressure blocks 201 squeeze the inner wall of the pipe 3 through their own elasticity, so that the center of the pipe 3, the annular plate 4, and the docking ring 5 can be automatically aligned and calibrated, thereby enabling rapid welding of the pipe 3, the annular plate 4, and the docking ring 5, which can further improve the welding efficiency of the pipe 3, the annular plate 4, and the docking ring 5.

[0039] In one embodiment, such as Figures 2-4 As shown, the rotating assembly includes: a DC motor 206 installed at the bottom of the connecting flap 209, the DC motor 206 being located on one side of the fixed baffle 2010, the output end of the DC motor 206 being fixedly connected to a limiting turntable 204, the limiting turntable 204 being located inside the connecting flap 209, and the limiting turntable 204 being rotatably connected to the connecting flap 209 via a rotating shaft;

[0040] A clamping assembly is provided on the connecting flap 209;

[0041] The clamping assembly includes: multiple limiting pressure rods 202 circumferentially and equidistantly arranged on the upper surface of the connecting flap 209, all of which are in contact with the inner wall of the annular plate 4, and all of which penetrate the connecting flap 209 to the bottom outside of the limiting turntable 204. An arc-shaped groove 205 for sliding of the limiting pressure rods 202 is provided at the contact position between the limiting turntable 204 and the multiple limiting pressure rods 202.

[0042] The limit rod 202 is equipped with an elastic component;

[0043] The elastic component is an elastic block 201 fixedly connected to the top of the limiting pressure rod 202. The elastic block 201 is in contact with the inner wall of the pipe 3. Through the cooperation of the rotating component, the clamping component and the elastic component, the pipe 3 and the annular plate 4 can be limited and clamped respectively, and the center of the pipe 3 and the annular plate 4 can be automatically aligned.

[0044] A sliding component is provided on the connecting flap 209;

[0045] In one embodiment, such as Figures 2-4 As shown, the sliding assembly includes: a plurality of sliding sleeves 207 circumferentially and equidistantly arranged inside the connecting flap 209, the plurality of sliding sleeves 207 being located at the bottom ends of a plurality of limiting pressure rods 202 respectively, the plurality of sliding sleeves 207 being fixedly connected to the plurality of limiting pressure rods 202 respectively, and a linear groove 203 for sliding the limiting pressure rods 202 and the sliding sleeves 207 being provided at the contact position between the connecting flap 209 and the limiting pressure rods 202 and the sliding sleeves 207;

[0046] A guide component is provided on the connecting flap 209;

[0047] The guide assembly includes: multiple fixed guide rods 208 that are circumferentially and equidistantly fixed inside the connecting flap 209; and multiple sliding sleeves 207 that are respectively slidably sleeved on the outer walls of the multiple fixed guide rods 208. Through the cooperation between the sliding assembly and the guide assembly, the multiple limiting pressure rods 202 can be slidably limited.

[0048] The above embodiments disclose a T-shaped circumferential weld tooling for tube sheets. It should be noted that the stepper motor 2011 is a motor that relies on external pulse signals to perform stepping motion. When the external drive signal is lost, the motor cannot determine the drive mode and rotation direction, causing the rotor to be fixed at a certain position of an electromagnet ring, thereby realizing the self-locking function. Therefore, during the process of the stepper motor 2011 driving the connecting flap 209 to flip, the connecting flap 209 can be locked and fixed at any angle.

[0049] When in use, start the stepper motor 2011 to drive the connecting flap 209 to flip. At this time, the connecting flap 209 separates from the outer wall of the fixed baffle 2010 by flipping until the connecting flap 209 flips to a vertical state.

[0050] Then, the outer wall of the end of the annular plate 4 away from the docking ring 5 is brought into contact with the outer wall of the connecting flap 209. At this time, multiple limiting pressure rods 202 are located inside the annular plate 4. Then, the pipe 3 is pushed to fit onto the outer wall of the docking ring 5, and the distance between the end of the pipe 3 and the outer wall of the annular plate 4 is controlled. Then, the DC motor 206 is started to drive the limiting turntable 204 to rotate. At this time, under the pressure of the inner wall of the arc-shaped slide groove 205, the multiple limiting pressure rods 202 drive the sliding sleeve block 207 to slide along the inner wall of the straight slide groove 203 and the outer wall of the fixed guide rod 208 until the multiple limiting pressure rods 202 are in contact with the inner wall of the annular plate 4, so that the annular plate 4 can be easily clamped.

[0051] During this process, the elastic pressure block 201 is tightly fitted to the inner wall of the pipe 3 under the action of the limiting pressure rod 202. At this time, the friction between the elastic pressure block 201 and the inner wall of the pipe 3 can effectively prevent the pipe 3 from automatically displacing during the welding process.

[0052] Then, the stepper motor 2011 is started to drive the connecting flap 209 to flip and reset. At the same time, the pipe 3, the annular plate 4, and the docking ring 5 are flipped to a vertical state by the connecting flap 209 through the elastic pressure block 201 and the limiting pressure rod 202. When the connecting flap 209 contacts the outer wall of the fixed baffle 2010, the pipe 3 is completely vertical. At the same time, multiple elastic pressure blocks 201 squeeze the inner wall of the pipe 3 through their own elasticity, so that the center of the pipe 3, the annular plate 4, and the docking ring 5 can be automatically aligned and calibrated, thereby enabling rapid welding of the pipe 3, the annular plate 4, and the docking ring 5, which can further improve the welding efficiency of the pipe 3, the annular plate 4, and the docking ring 5.

[0053] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A tube sheet T-ring joint welding tool, comprising a support seat (1), an annular plate (4) is arranged above the support seat (1), a butt joint ring (5) is integrally formed at the top end of the annular plate (4), a pipeline (3) is sleeved on the outer wall of the butt joint ring (5), and the pipeline (3) is located above the annular plate (4), characterized in that, The support seat (1) is provided with a positioning mechanism for self-positioning calibration of the center of the pipeline (3), the annular plate (4) and the butt joint ring (5); The positioning mechanism comprises a turnover assembly arranged on the support seat (1); The turnover assembly comprises a stepping motor (2011) mounted at one end of the support seat (1), the output end of the stepping motor (2011) is fixedly connected with a connecting flap (209), the connecting flap (209) is located on the inner side of the support seat (1), the connecting flap (209) is in contact with the lower surface of the annular plate (4), and the connecting flap (209) is rotatably connected with the support seat (1) through a rotating shaft; The support seat (1) is provided with a limiting assembly.

2. The tube sheet T-ring seam welding tooling of claim 1, wherein, The limiting assembly is a fixed baffle (2010) fixedly connected to the inner side of one side of the support seat (1), and the fixed baffle (2010) is in contact with the lower surface of one side of the connecting flap (209); The connecting flap (209) is provided with a rotating assembly.

3. The tube sheet T-ring seam welding tooling of claim 2, wherein, The rotating assembly comprises a DC motor (206) mounted at the bottom end of the connecting flap (209), the DC motor (206) is located on one side of the fixed baffle (2010), the output end of the DC motor (206) is fixedly connected with a limiting turntable (204), the limiting turntable (204) is located in the interior of the connecting flap (209), and the limiting turntable (204) is rotatably connected with the connecting flap (209) through a rotating shaft; The connecting flap (209) is provided with a clamping assembly.

4. The tube sheet T-ring seam welding tooling of claim 3, wherein, The clamping assembly comprises a plurality of limiting pressure rods (202) circumferentially and equidistantly arranged on the upper surface of the connecting flap (209), the plurality of limiting pressure rods (202) are in contact with the inner wall of the annular plate (4), the plurality of limiting pressure rods (202) penetrate through the connecting flap (209) to the bottom end outside of the limiting turntable (204), and the limiting turntable (204) is provided with an arc-shaped sliding groove (205) for sliding of the limiting pressure rod (202) at the position where the limiting turntable (204) is in contact with the plurality of limiting pressure rods (202); The limiting pressure rod (202) is provided with an elastic assembly.

5. A tube sheet T-ring seam welding tooling as claimed in claim 4, wherein, The elastic assembly is an elastic pressing block (201) fixedly connected to the top end of the limiting pressure rod (202), and the elastic pressing block (201) is in contact with the inner wall of the pipeline (3); The connecting flap (209) is provided with a sliding assembly.

6. A tube sheet T-ring seam welding tooling as claimed in claim 5, wherein, The sliding assembly comprises a plurality of sliding sleeve blocks (207) circumferentially and equidistantly arranged in the interior of the connecting flap (209), the plurality of sliding sleeve blocks (207) are located at the bottom end of the plurality of limiting pressure rods (202) respectively, the plurality of sliding sleeve blocks (207) are fixedly connected with the plurality of limiting pressure rods (202) respectively, and the connecting flap (209) is provided with a straight sliding groove (203) for sliding of the limiting pressure rod (202) and the sliding sleeve block (207) at the position where the connecting flap (209) is in contact with the limiting pressure rod (202) and the sliding sleeve block (207); The connecting flap (209) is provided with a guide assembly.

7. A tube sheet T-ring seam welding tooling according to claim 6, wherein, The guiding assembly comprises a plurality of fixed guide rods (208) fixed and connected at the inner part of the connecting flap (209) in a circumferential equidistant manner, and a plurality of sliding sleeve blocks (207) respectively slidingly sleeved on the outer walls of the plurality of fixed guide rods (208).

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