A structural assembly for welding polyurethane seamless steel pipe

Abstract

The utility model discloses a structure subassembly for polyurethane seamless steel pipe welding belongs to welding technical field, including support subassembly, the right side position of support subassembly is provided with lifting assembly, the top of lifting assembly is connected with clamping assembly through connecting piece, and clamping assembly clamps the pipeline, and the pipeline is on support subassembly, clamping assembly includes mounting panel, and the side away from support subassembly of mounting panel is provided with mounting bracket, and the lower end surface of mounting bracket is provided with support frame, and the bottom rotatable of support frame is provided with lead screw, and the upper end of lead screw is connected with lead screw motor after going out support frame and mounting panel, the screw thread of lead screw is connected with nut block, and the both ends symmetrical of nut block are provided with open and close clamp, and the middle position of open and close clamp is hinged together with the middle position of support frame. The utility model can realize the automatic clamping of pipeline, improves the welding efficiency of polyurethane seamless steel pipe, and is the key auxiliary tool of guaranteeing welding quality and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, and in particular to a structural component for welding seamless polyurethane steel pipes. Background Technology

[0002] Polyurethane seamless steel pipes are widely used in insulated piping systems (such as heating and cooling pipelines). The pipe body must strictly ensure axial alignment (straightness) and misalignment (the misalignment of the inner or outer wall must be controlled within the specified range, typically ≤10% of the wall thickness). Without support, the pipe may sag or shift due to its own weight (especially large-diameter pipes) or external forces, causing weld misalignment and leading to defects such as incomplete penetration and stress concentration. Therefore, to ensure welding accuracy, reduce deformation, and improve weld quality, support or clamping components are usually required during the welding process of polyurethane seamless steel pipes. Traditional clamping components mostly use radial clamps, tightened with stainless steel bands and bolts to hold the outer wall of the mold. This method requires frequent disassembly when changing pipes, which is time-consuming and labor-intensive. Based on this, this utility model proposes a structural component for welding polyurethane seamless steel pipes. Utility Model Content

[0003] The purpose of this invention is to provide a structural component for welding seamless polyurethane steel pipes, thereby solving the aforementioned problems.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This utility model discloses a structural component for welding seamless polyurethane steel pipes, including a support component, a lifting component is provided on the right side of the support component, and a clamping component is connected to the top of the lifting component via a connector. The clamping component clamps the pipe, and the pipe rests on the support component.

[0006] The clamping assembly includes a mounting plate, a mounting bracket on the side of the mounting plate away from the support assembly, a support frame on the lower end face of the mounting bracket, a lead screw rotatably mounted on the bottom of the support frame, the upper end of the lead screw passing through the support frame and the mounting plate and connected to a lead screw motor; a lead screw nut block is threaded onto the lead screw, and opening and closing clamps are symmetrically arranged at both ends of the lead screw nut block, the middle position of the opening and closing clamps is hinged to the middle position of the support frame, the lower end of the opening and closing clamps is hinged to a clamping plate, and a connecting rod is hinged between the clamping plate and the bottom of the support frame.

[0007] Furthermore, the inner wall of the clamping piece has an arc-shaped surface structure.

[0008] Furthermore, the support assembly includes symmetrically arranged upright plates, with symmetrically arranged pivots at the upper position between the upright plates, and support wheels mounted on the pivots.

[0009] Furthermore, the lifting assembly includes a lifting mechanism and a guide mechanism arranged symmetrically front and rear, a horizontal plate is provided between the top of the lifting mechanism and the guide mechanism, and the connecting member is fixedly connected to the horizontal plate.

[0010] Furthermore, the lifting mechanism includes a support tube at the bottom, a housing at the upper end of the support tube, a worm gear inside the housing, a lead screw threadedly connected to the center of the worm gear, a worm engaging with the worm gear on one side, and a forward / reverse motor connected to one end of the worm gear after it passes through the housing; a limit groove is formed in the vertical direction of the lead screw, and a limit block that mates with the limit groove is provided on the housing; the top of the lead screw is connected to the horizontal plate.

[0011] Furthermore, the length of the support tube is longer than the length of the lead screw.

[0012] Furthermore, the guiding mechanism includes a guide sleeve and a guide rod slidably disposed within the guide sleeve, the top of the guide rod being connected to the cross plate.

[0013] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0014] This utility model relates to a structural component for welding seamless polyurethane steel pipes. It features an automatic pipe clamping assembly. By activating a lead screw motor, the lead screw block moves up and down according to the lead screw principle, thereby opening and closing the clamps. This, in turn, causes the clamping plates to clamp and release the pipe, achieving automated clamping. The operation is simple and quick, freeing up labor. Furthermore, the height of the clamping assembly can be adjusted via a lifting mechanism to accommodate pipes of different sizes, improving its practicality. In summary, this structural component for welding seamless polyurethane steel pipes enables automated pipe clamping, improving welding efficiency and serving as a key auxiliary tool for ensuring welding quality and efficiency. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a front view of the structural component of the present invention used for welding seamless steel pipes with polyurethane.

[0017] Figure 2 This is a schematic diagram of the supporting component structure;

[0018] Figure 3 This is a sectional view of the lifting mechanism;

[0019] Figure 4 This is a schematic diagram of a partial structure of the lifting mechanism;

[0020] Figure 5 This is a schematic diagram of the clamping component structure;

[0021] Explanation of reference numerals in the attached drawings: 1. Support assembly; 2. Lifting assembly; 3. Connector; 4. Clamping assembly; 5. Pipe;

[0022] 101. Vertical plate; 102. Support wheel; 103. Rotating shaft;

[0023] 201. Support tube; 202. Housing; 203. Lead screw; 204. Worm gear; 205. Worm; 206. Limiting groove; 207. Limiting block;

[0024] 401. Mounting plate; 402. Mounting bracket; 403. Support bracket; 404. Lead screw block; 405. Lead screw; 406. Opening and closing clamp; 407. Clamping plate; 408. Connecting rod; 409. Lead screw motor. Detailed Implementation

[0025] like Figure 1-5 As shown, a structural component for welding seamless polyurethane steel pipes includes a support component 1. A lifting component 2 is installed on the right side of the support component 1. The top of the lifting component 2 is connected to a clamping component 4 via a connector 3. The clamping component 4 clamps a pipe 5, which rests on the support component 1. The support component 1 provides support for the pipe 5, ensuring its stability during the welding process and thus improving the welding quality. The lifting component 2 can move the clamping component 4 up and down, allowing for alignment and adjustment of the clamping component 4 when clamping pipes 5 of different sizes, ensuring accurate clamping, promoting stable welding, and guaranteeing welding quality.

[0026] The clamping assembly 4 includes a mounting plate 401. A mounting bracket 402 is mounted on the side of the mounting plate 401 away from the support assembly 1. A support bracket 403 is mounted on the lower end surface of the mounting bracket 402. A lead screw 405 is rotatably mounted on the bottom of the support bracket 403. The upper end of the lead screw 405 passes through the support bracket 403 and the mounting plate 402 and is connected to a lead screw motor 409. A lead screw nut block 404 is threaded onto the lead screw 405. Opening and closing clamps 406 are symmetrically mounted on both ends of the lead screw nut block 404. The middle position of the opening and closing clamp 406 is hinged to the middle position of the support bracket 403. A clamping piece 407 is hinged to the lower end of the opening and closing clamp 406. A connecting rod 408 is hinged between the clamping piece 407 and the bottom of the support bracket 403. Specifically, the lead screw motor 409 is started, which drives the lead screw 405 to rotate. Under the constraint of the support frame 403 and the opening and closing clamp 406, the lead screw block 404 moves up and down, which drives the opening and closing clamp 406 on it to open and close, thereby satisfying the opening and closing action of the clamping plate 407, realizing the clamping of the pipe 5 and improving the stability of the welding process.

[0027] The inner wall of the clamping piece 407 has an arc-shaped surface structure, which is used to match the pipe 5, increase the contact area, and improve the stability of clamping.

[0028] The support assembly 1 includes upright plates 101 installed symmetrically on the left and right. Rotating shafts 103 are symmetrically installed on the upper part of the upright plates 101. Support wheels 102 are installed on the rotating shafts 103. A V-shaped support groove is formed between the support wheels 102. The pipe 5 is placed in the V-shaped support groove to achieve stable support.

[0029] The lifting assembly 2 includes a lifting mechanism and a guide mechanism symmetrically installed front and rear. A horizontal plate is installed between the tops of the lifting mechanism and the guide mechanism, and the connecting piece 3 is fixedly connected to the horizontal plate. The lifting mechanism's movement causes the rigidly connected horizontal plate to move up and down, which in turn causes the guide mechanism to move synchronously. The guide mechanism also provides support, forming a rectangular structure between the lifting mechanism, guide mechanism, horizontal plate, and worktable. This ensures the stability of the horizontal plate's vertical movement, and consequently, enables the clamping assembly 4 to move up and down, meeting the requirements for clamping pipes 5 of different sizes.

[0030] The lifting mechanism includes a support tube 201 at the bottom, a housing 202 mounted on the upper end of the support tube 201, a worm gear 204 installed inside the housing 202, a lead screw 203 threadedly connected to the center of the worm gear 204, and a worm 205 meshing with it on one side of the worm gear 204. One end of the worm 205 extends out of the housing 202 and is connected to a forward / reverse motor. A limit groove 206 is formed vertically on the lead screw 203, and a limit block 207 that mates with the limit groove 206 is mounted on the housing 202. The top of the lead screw 203 is connected to the horizontal plate. Specifically, the forward / reverse motor is started, driving the worm 205 to rotate, which in turn rotates the worm gear 204. When the worm gear 204 rotates, the lead screw 203, meshing with it, moves up and down within the support tube 201 under the mutual restraint of the limit block 207 and the limit groove 206.

[0031] The length of the support tube 201 is longer than the length of the lead screw 203.

[0032] The guiding mechanism includes a guide sleeve and a guide rod slidably installed within the guide sleeve, with the top of the guide rod connected to the cross plate.

[0033] The operation process of this utility model is as follows:

[0034] First, based on the dimensions of pipe 5, the height of clamping assembly 4 is finely adjusted using lifting assembly 2 until the arc center between the clamping plates 407 of clamping assembly 4 coincides with the center of pipe 5; then, clamping assembly 4 is activated to clamp the outer wall of pipe 5, and welding is performed after clamping; finally, after welding is completed, clamping assembly 4 releases pipe 5, and the worker removes the welded pipe 5.

[0035] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A structural component for welding seamless polyurethane steel pipes, characterized in that: Includes a support component (1), a lifting component (2) is provided on the right side of the support component (1), the top of the lifting component (2) is connected to a clamping component (4) via a connector (3), the clamping component (4) clamps a pipe (5), and the pipe (5) rests on the support component (1); The clamping assembly (4) includes a mounting plate (401). A mounting bracket (402) is provided on the side of the mounting plate (401) away from the support assembly (1). A support bracket (403) is provided on the lower end surface of the mounting bracket (402). A lead screw (405) is rotatably provided at the bottom of the support bracket (403). The upper end of the lead screw (405) passes through the support bracket (403) and the mounting bracket (402) and is connected to a lead screw motor (409). The lead screw (405) is threadedly connected to a lead screw block (404). The two ends of the lead screw block (404) are symmetrically provided with opening and closing clamps (406). The middle position of the opening and closing clamp (406) is hinged to the middle position of the support frame (403). The lower end of the opening and closing clamp (406) is hinged to a clamping piece (407). The clamping piece (407) and the bottom of the support frame (403) are hinged to a connecting rod (408).

2. The structural component for welding seamless polyurethane steel pipes according to claim 1, characterized in that: The inner wall of the clamping piece (407) has an arc-shaped surface structure.

3. The structural component for welding seamless polyurethane steel pipes according to claim 1, characterized in that: The support assembly (1) includes upright plates (101) arranged symmetrically on the left and right. A pivot (103) is arranged symmetrically on the upper part of the upright plates (101), and a support wheel (102) is provided on the pivot (103).

4. The structural component for welding seamless polyurethane steel pipes according to claim 1, characterized in that: The lifting assembly (2) includes a lifting mechanism and a guide mechanism arranged symmetrically in front and behind. A horizontal plate is provided between the top of the lifting mechanism and the guide mechanism. The connecting piece (3) is fixedly connected to the horizontal plate.

5. The structural component for welding seamless polyurethane steel pipes according to claim 4, characterized in that: The lifting mechanism includes a support tube (201) at the bottom, a housing (202) at the upper end of the support tube (201), a worm gear (204) inside the housing (202), a lead screw (203) threadedly connected to the center of the worm gear (204), a worm (205) meshing with the worm gear (204) on one side, and one end of the worm (205) passing through the housing (202) and connected to a forward and reverse motor; a limit groove (206) is formed in the vertical direction of the lead screw (203), and a limit block (207) is provided on the housing (202) to cooperate with the limit groove (206); the top of the lead screw (203) is connected to the horizontal plate.

6. The structural component for welding seamless polyurethane steel pipes according to claim 5, characterized in that: The length of the support tube (201) is longer than the length of the lead screw (203).

7. The structural component for welding seamless polyurethane steel pipes according to claim 1, characterized in that: The guiding mechanism includes a guide sleeve and a guide rod slidably disposed within the guide sleeve, the top of which is connected to a cross plate.

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