A precise clamping device for welding reconstruction of special equipment pressure pipeline

Abstract

The utility model discloses a kind of precise clamping devices for special equipment pressure pipeline welding reconstruction, belong to special equipment pressure pipeline welding reconstruction technical field, its technical scheme main points include base, the front side and rear side of the base top are provided with clamping mechanism, the top of the base is provided with the adjusting assembly of cooperation with clamping mechanism, the clamping device of existing has solved usually by two arc clamping blocks to pressure pipeline is clamped and fixed, since the caliber of arc clamping block is fixed size, so it is inconvenient to the pressure pipeline of different thickness and be clamped and fixed, and after clamping and fixing two pressure pipelines needing welding, two pressure pipelines cannot be in the same straight alignment state, position adjustment is also needed, it is more troublesome, and after clamping and fixing two pressure pipelines, it is inconvenient to the welding port of two pressure pipelines Quick butt joint, so as to bring the problem of inconvenience to user.

Description

Technical Field

[0001] This utility model relates to the field of welding and modification technology for pressure pipelines of special equipment, and in particular to a precision clamping device for welding and modification of pressure pipelines of special equipment. Background Technology

[0002] In the welding and modification of pressure pipelines for special equipment, the clamping and fixing of the pipeline is a crucial task. Precise clamping not only ensures the quality and accuracy of the welding, but also improves work efficiency and safety.

[0003] During the installation of existing pressure pipelines, due to differences in pipe diameter and errors in pipe laying, it is difficult to align the interfaces of the two sets of pipes when splicing them. It is difficult to correct them manually. Although lifting equipment can be used to correct pressure pipelines, the lifting equipment has high requirements for the construction environment and location, resulting in poor practicality. Therefore, it is necessary to improve the existing equipment.

[0004] The existing patent (publication number: CN219005159U) relates to the technical field of pressure pipeline installation, and in particular to a clamping device for splicing pressure pipelines. It uses two sets of first hydraulic cylinders to extend and, in conjunction with multiple sets of second hydraulic cylinders to extend or retract individually, to straighten two sets of pressure pipelines using two clamping devices. Workers then weld the joints of the two sets of pressure pipelines, and a dust extraction device cleans up the welding fumes, thereby improving the practicality of the equipment. The device includes a support device, a straightening device, and a dust extraction device. The support device is installed at the bottom of the straightening device, and the dust extraction device is installed at the top of the straightening device. The support device adjusts the stability of the straightening device, the straightening device straightens the pressure pipelines, and the dust extraction device treats the welding fumes generated during the welding of the pressure pipelines. The straightening device includes a base, a first support, a second support, two sets of top plates, two sets of first hydraulic cylinders, multiple sets of second hydraulic cylinders, multiple sets of sliders, multiple sets of slide rails, two sets of clamping devices, and a limiting device.

[0005] To address the aforementioned issues, existing patents offer solutions. However, existing clamping devices typically use two arc-shaped clamps to hold and fix the pressure pipes. Since the diameter of the arc-shaped clamps is a fixed size, it is inconvenient to clamp and fix pressure pipes of different thicknesses. Furthermore, after clamping and fixing two pressure pipes that need to be welded, it is impossible to align the two pressure pipes in a straight line, requiring positional adjustments, which is quite troublesome. Moreover, after clamping and fixing two pressure pipes, it is not convenient to quickly connect the welding ports of the two pressure pipes, thus causing inconvenience to the user.

[0006] To address this, a precision clamping device for welding and retrofitting pressure pipelines in special equipment is proposed. Utility Model Content

[0007] The purpose of this utility model is to provide a precision clamping device for welding and modifying pressure pipelines in special equipment. This device solves the problems of existing clamping devices that typically use two arc-shaped clamps to hold and fix pressure pipelines. Since the diameter of the arc-shaped clamps is a fixed size, it is not convenient to clamp and fix pressure pipelines of different thicknesses. Furthermore, after clamping and fixing two pressure pipelines to be welded, it is impossible to align the two pressure pipelines in a straight line, requiring position adjustment, which is quite troublesome. Moreover, after clamping and fixing two pressure pipelines, it is not convenient to quickly connect the welding ports of the two pressure pipelines, thus causing inconvenience to the user.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a precision clamping device for welding and modifying pressure pipelines of special equipment, including a base, with clamping mechanisms provided on the front and rear sides of the top of the base, and an adjustment component for use in conjunction with the clamping mechanisms provided on the top of the base;

[0009] The clamping mechanism includes a first bracket, a forward and reverse motor is provided on the right side of the first bracket, and a bidirectional screw is fixedly connected to the output shaft of the forward and reverse motor. The left side of the bidirectional screw extends through to the left side of the first bracket. The side of the surface of the bidirectional screw near the inner wall of the first bracket is rotatably connected to the inner wall of the first bracket through a bearing. Both sides of the surface of the bidirectional screw are threaded with internal thread blocks. Connecting blocks are fixedly connected to the front and rear sides of the top of the internal thread blocks. The tops of the two connecting blocks extend through to the top of the first bracket and are fixedly connected with a clamping plate. A pressing component is provided on the top of the first bracket.

[0010] Preferably, the adjustment assembly includes two fixing plates, which are respectively fixedly connected to the front and rear sides of the top of the base, and a multi-section hydraulic cylinder is fixedly connected to one side of each fixing plate.

[0011] Preferably, the output ends of the two multi-section hydraulic cylinders are fixedly connected to transmission plates, the tops of the two transmission plates are fixedly connected to support plates, and the tops of the two support plates are respectively fixedly connected to the bottoms of the two first brackets.

[0012] Preferably, limit sliders are fixedly connected to both sides of the bottom of the support plate, and limit guide rails are slidably connected to the inner walls of the limit sliders. The bottom of the limit guide rails is fixedly connected to the top of the base.

[0013] Preferably, the pressing component includes a second bracket, the two sides of the bottom of the second bracket are fixedly connected to the two sides of the top of the first bracket, a lifting cylinder is fixedly connected to the top of the second bracket, the output rod of the lifting cylinder passes through the second bracket and is fixedly connected to a pressing plate, and a first rubber pad is fixedly connected to the bottom of the pressing plate.

[0014] Preferably, the top of the second bracket is provided with a through hole for use with a lifting cylinder, and the surface of the output rod of the lifting cylinder is slidably connected to the inner wall of the through hole.

[0015] Preferably, the bottom of the reversible motor is fixedly connected to a fixing frame, and the side of the fixing frame near the first bracket is fixedly connected to the first bracket.

[0016] Preferably, the first bracket has a limiting groove on the front and rear sides of the top, which is used to cooperate with the connecting block. The side of the connecting block near the inner wall of the limiting groove is slidably connected to the inner wall of the limiting groove, and a second rubber pad is fixedly connected to the opposite side of the two clamping plates.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application, through the setting of the clamping mechanism, can quickly and stably clamp and fix pressure pipes of different diameters. After clamping and fixing two pressure pipes that need to be welded, the two pressure pipes can be aligned in the same straight line, so that no position adjustment is required, which is more convenient.

[0019] 2. By adjusting the settings of the components, the distance between the two clamping mechanisms can be adjusted according to the requirements. After the two clamping mechanisms clamp and fix the two pressure pipes respectively, the two clamping mechanisms can be adjusted to move in opposite directions, so that the welding ports of the two pressure pipes can be quickly connected. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the precision clamping device for welding and modifying pressure pipelines in special equipment according to this utility model.

[0021] Figure 2 In this utility model Figure 1 Front view structural diagram;

[0022] Figure 3 This is an exploded structural diagram of the clamping mechanism in this utility model;

[0023] Figure 4 This is a structural diagram of the adjustment component in this utility model;

[0024] Figure 5 This is an exploded structural diagram of the pressing component in this utility model.

[0025] In the diagram, 1. Base; 2. Clamping mechanism; 201. First bracket; 202. Forward and reverse motor; 203. Bidirectional screw; 204. Internal thread block; 205. Connecting block; 206. Clamping plate; 207. Pressing assembly; 207a. Second bracket; 207b. Lifting cylinder; 207c. Pressing plate; 207d. First rubber pad; 207e. Through hole; 3. Adjustment assembly; 301. Fixing plate; 302. Multi-section hydraulic cylinder; 303. Transmission plate; 304. Support plate; 305. Limiting slider; 306. Limiting guide rail; 4. Fixing frame; 5. Limiting groove; 6. Second rubber pad. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 The present invention provides the following technical solution:

[0028] A precision clamping device for welding and modifying pressure pipelines of special equipment includes a base 1, a clamping mechanism 2 is provided on the front and rear sides of the top of the base 1, and an adjustment component 3 is provided on the top of the base 1 to cooperate with the clamping mechanism 2.

[0029] The clamping mechanism 2 includes a first bracket 201. A forward and reverse motor 202 is provided on the right side of the first bracket 201. The output shaft of the forward and reverse motor 202 is fixedly connected to a bidirectional screw 203. The left side of the bidirectional screw 203 extends through to the left side of the first bracket 201. The side of the surface of the bidirectional screw 203 near the inner wall of the first bracket 201 is rotatably connected to the inner wall of the first bracket 201 through a bearing. Both sides of the surface of the bidirectional screw 203 are threadedly connected to internal thread blocks 204. Connecting blocks 205 are fixedly connected to the front and rear sides of the top of the internal thread blocks 204. The tops of the two connecting blocks 205 extend through to the top of the first bracket 201 and are fixedly connected to a clamping plate 206. A pressing component 207 is provided on the top of the first bracket 201.

[0030] In this embodiment: by setting a base 1, a clamping mechanism 2, and an adjusting component 3, the base 1 provides a supporting foundation for the entire device during use. The clamping mechanism 2 can quickly and stably clamp and fix pressure pipes of different diameters. After clamping and fixing two pressure pipes to be welded, the two pressure pipes can be aligned in a straight line, thus eliminating the need for position adjustment, which is convenient. The adjusting component 3 allows the distance between the two clamping mechanisms 2 to be adjusted as needed. After the two clamping mechanisms 2 clamp and fix the two pressure pipes respectively, they can be adjusted to move in opposite directions, thereby quickly connecting the welding ports of the two pressure pipes.

[0031] Specifically, such as Figure 1 , Figure 2 , Figure 4 As shown, the adjustment assembly 3 includes two fixing plates 301, which are fixedly connected to the front and rear sides of the top of the base 1, respectively. A multi-section hydraulic cylinder 302 is fixedly connected to the opposite side of each of the two fixing plates 301.

[0032] Specifically, such as Figure 1 , Figure 2 , Figure 4 As shown, the output ends of the two multi-section hydraulic cylinders 302 are fixedly connected to transmission plates 303, and the tops of the two transmission plates 303 are fixedly connected to support plates 304. The tops of the two support plates 304 are respectively fixedly connected to the bottoms of the two first brackets 201.

[0033] Specifically, such as Figure 1 , Figure 2 , Figure 4 As shown, limit sliders 305 are fixedly connected to both sides of the bottom of the support plate 304. Limit guide rails 306 are slidably connected to the inner wall of the limit sliders 305. The bottom of the limit guide rails 306 is fixedly connected to the top of the base 1.

[0034] In this embodiment: by setting a fixed plate 301, a multi-section hydraulic cylinder 302, a transmission plate 303, a support plate 304, a limiting slider 305, and a limiting guide rail 306, in use, by activating the two multi-section hydraulic cylinders 302, the output rods of the two multi-section hydraulic cylinders 302 are retracted or extended, which respectively drives the two transmission plates 303 to move in opposite or opposite directions. The two transmission plates 303 will respectively drive the two support plates 304 to move in opposite or opposite directions. The two support plates 304 will respectively drive the two first brackets 201 to move in opposite or opposite directions. Thus, the distance between the two clamping mechanisms 2 can be adjusted according to the needs. After the two clamping mechanisms 2 clamp and fix the two pressure pipes respectively, the two clamping mechanisms 2 can be adjusted to move in opposite directions through the above operation, so that the welding ports of the two pressure pipes can be quickly connected. The setting of the limiting slider 305 and the limiting guide rail 306 can provide auxiliary support and guide limitation for the support plate 304, so that the support plate 304 can move back and forth smoothly.

[0035] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, the pressing assembly 207 includes a second bracket 207a. The two sides of the bottom of the second bracket 207a are fixedly connected to the two sides of the top of the first bracket 201. A lifting cylinder 207b is fixedly connected to the top of the second bracket 207a. The output rod of the lifting cylinder 207b passes through the second bracket 207a and is fixedly connected to a pressing plate 207c. A first rubber pad 207d is fixedly connected to the bottom of the pressing plate 207c.

[0036] Specifically, such as Figure 5 As shown, the top of the second bracket 207a is provided with a through hole 207e that works in conjunction with the lifting cylinder 207b, and the surface of the output rod of the lifting cylinder 207b is slidably connected to the inner wall of the through hole 207e.

[0037] In this embodiment: by setting up a second bracket 207a, a lifting cylinder 207b, a lower pressure plate 207c, a first rubber pad 207d, and a through hole 207e, in use, after the two clamping plates 206 clamp and fix the pressure pipe, the lifting cylinder 207b can be activated, causing the output rod of the lifting cylinder 207b to drive the lower pressure plate 207c to move down until the first rubber pad 207d is tightly attached to the pressure pipe, thus pressing and fixing the pressure pipe, which can further improve the fixing stability of the pressure pipe. The through hole 207e is set so that the output rod of the lifting cylinder 207b can pass through the second bracket 207a for telescopic output.

[0038] Specifically, such as Figure 1 , Figure 2 , Figure 3As shown, a fixing frame 4 is fixedly connected to the bottom of the forward and reverse motor 202, and the side of the fixing frame 4 near the first bracket 201 is fixedly connected to the first bracket 201.

[0039] Specifically, such as Figure 1 , Figure 3 As shown, the first bracket 201 has a limiting groove 5 on the front and rear sides of the top, which is used to cooperate with the connecting block 205. The side of the connecting block 205 near the inner wall of the limiting groove 5 is slidably connected to the inner wall of the limiting groove 5. The two clamping plates 206 are fixedly connected to the opposite side of each other with a second rubber pad 6.

[0040] In this embodiment: by setting the fixing frame 4, the forward and reverse motor 202 can be supported and fixed; by setting the limiting slide groove 5, the connecting block 205 can be guided and limited, so that the connecting block 205 and the internal thread block 204 can move smoothly left and right; by setting the second rubber pad 6, the clamping plate 206 can prevent damage to the pressure pipeline rigid clamping and can improve the clamping friction.

[0041] Working principle: In use, one of the clamping mechanisms 2 is first used to clamp and fix one of the pressure pipes to be welded. The pressure pipe can be passed between the two clamping plates 206 and placed on the first bracket 201. Then, the forward and reverse motor 202 can be started, so that the output shaft of the forward and reverse motor 202 drives the bidirectional screw 203 to rotate. The rotation of the bidirectional screw 203 causes the two internal threaded blocks 204 to move simultaneously in opposite directions through the threads. The two internal threaded blocks 204 will respectively drive the two clamping plates 206 to move closer to the pressure pipe through the connecting block 205, until the two... The second rubber pad 6 on the clamping plate 206 is tightly fitted to the pressure pipe, allowing the pressure pipe to be clamped and fixed from both sides by the two clamping plates 206. Then, the lifting cylinder 207b can be activated, causing its output rod to move the lower pressure plate 207c downward until the first rubber pad 207d is tightly fitted to the pressure pipe, thus pressing and fixing the pressure pipe. This further improves the stability of the pressure pipe's fixation. Therefore, through the cooperation of the two clamping plates 206 and the lower pressure plate 207c, pressure pipes of different diameters can be quickly and stably clamped and fixed. The same operation is performed using another clamping mechanism 2 to clamp and fix another pressure pipe that needs to be welded. Since the two fixing plates clamp the pressure pipe simultaneously from both sides towards the middle, after fixing the two pressure pipes, both pressure pipes can be positioned in the center of the top of the first support 201, thus aligning the two pressure pipes in a straight line without the need for position adjustment, which is convenient. Furthermore, by activating the two multi-section hydraulic cylinders 302, the output rods of the two multi-section hydraulic cylinders 302 can be retracted or extended, thereby driving the two transmission plates 303 to move in opposite directions. The two transmission plates 303 will then drive the two support plates 304 to move in opposite directions, and the two support plates 304 will then drive the two first supports 201 to move in opposite directions. This allows the distance between the two clamping mechanisms 2 to be adjusted as needed. After the two clamping mechanisms 2 have clamped and fixed the two pressure pipes, the above operation can be used to adjust the two clamping mechanisms 2 to move in opposite directions, thereby quickly connecting the welding ports of the two pressure pipes, and then welding can be performed on the two pressure pipes.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A precision clamping device for welding and modifying pressure pipelines of special equipment, comprising a base (1), characterized in that: The base (1) is provided with clamping mechanisms (2) on the front and rear sides of the top, and the base (1) is provided with an adjustment component (3) that works in conjunction with the clamping mechanisms (2) on the top. The clamping mechanism (2) includes a first bracket (201), a reversible motor (202) is provided on the right side of the first bracket (201), the output shaft of the reversible motor (202) is fixedly connected to a bidirectional screw (203), the left side of the bidirectional screw (203) extends through to the left side of the first bracket (201), the side of the surface of the bidirectional screw (203) close to the inner wall of the first bracket (201) is rotatably connected to the inner wall of the first bracket (201) through a bearing, both sides of the surface of the bidirectional screw (203) are threadedly connected to internal thread blocks (204), the front and rear sides of the top of the internal thread blocks (204) are fixedly connected to connecting blocks (205), the tops of the two connecting blocks (205) extend through to the top of the first bracket (201) and are fixedly connected to a clamping plate (206), and the top of the first bracket (201) is provided with a pressing component (207).

2. The precision clamping device for welding and modifying pressure pipelines in special equipment according to claim 1, characterized in that: The adjustment assembly (3) includes two fixing plates (301), which are fixedly connected to the front and rear sides of the top of the base (1) respectively. A multi-section hydraulic cylinder (302) is fixedly connected to the opposite side of each of the two fixing plates (301).

3. The precision clamping device for welding and modifying pressure pipelines in special equipment according to claim 2, characterized in that: The output ends of the two multi-section hydraulic cylinders (302) are fixedly connected to transmission plates (303), the tops of the two transmission plates (303) are fixedly connected to support plates (304), and the tops of the two support plates (304) are fixedly connected to the bottoms of the two first brackets (201).

4. The precision clamping device for welding and modifying pressure pipelines in special equipment according to claim 3, characterized in that: Limiting sliders (305) are fixedly connected to both sides of the bottom of the support plate (304). The inner wall of the limiting slider (305) is slidably connected to a limiting guide rail (306). The bottom of the limiting guide rail (306) is fixedly connected to the top of the base (1).

5. The precision clamping device for welding and modifying pressure pipelines in special equipment according to claim 1, characterized in that: The pressing assembly (207) includes a second bracket (207a), the two sides of the bottom of the second bracket (207a) are fixedly connected to the two sides of the top of the first bracket (201), a lifting cylinder (207b) is fixedly connected to the top of the second bracket (207a), the output rod of the lifting cylinder (207b) passes through the second bracket (207a) and is fixedly connected to a pressing plate (207c), and a first rubber pad (207d) is fixedly connected to the bottom of the pressing plate (207c).

6. The precision clamping device for welding and modifying pressure pipelines in special equipment according to claim 5, characterized in that: The top of the second bracket (207a) is provided with a through hole (207e) for use with the lifting cylinder (207b), and the surface of the output rod of the lifting cylinder (207b) is slidably connected to the inner wall of the through hole (207e).

7. The precision clamping device for welding and modifying pressure pipelines of special equipment according to claim 1, characterized in that: The bottom of the forward and reverse motor (202) is fixedly connected to a fixing frame (4), and the fixing frame (4) is fixedly connected to the first support (201) on the side near the first support (201).

8. The precision clamping device for welding and modifying pressure pipelines of special equipment according to claim 1, characterized in that: The first bracket (201) has a limiting groove (5) on the front and rear sides of the top, which is used to cooperate with the connecting block (205). The side of the connecting block (205) close to the inner wall of the limiting groove (5) is slidably connected to the inner wall of the limiting groove (5). The two clamping plates (206) are fixedly connected to the opposite sides of each other with a second rubber pad (6).

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