Welding tool

Abstract

The utility model discloses a welding tool which comprises a base, two V-shaped brackets are installed on the base in a front-back symmetrical and sliding mode, connecting sliding grooves are formed in the V-shaped brackets in a left-right symmetrical mode, carrier roller limiting sliding frames are installed in the connecting sliding grooves in a sliding mode, and supporting carrier rollers are rotatably installed on the carrier roller limiting sliding frames. An extrusion frame is rotatably connected to the upper surface of the V-shaped bracket, a threaded sleeve is embedded in the upper surface of the extrusion frame, an adjusting screw rod is installed in the threaded sleeve in a threaded mode, the lower end of the adjusting screw rod is rotatably connected with an extrusion roller frame, and a fixed extrusion roller is rotatably installed on the extrusion roller frame. Limiting on the extrusion frame is relieved by screwing off the fixing bolts, the extrusion frame is rotated to enable the upper portion of the V-shaped bracket to be exposed, a pipeline can be hoisted by equipment such as a crane to be placed in a V-shaped groove of the V-shaped bracket, the pipeline can be conveniently installed by auxiliary hoisting equipment due to the fact that the pipeline is heavy, pipeline installation is facilitated, and manpower is reduced.

Description

Technical Field

[0001] The utility model relates to a welding tool, in particular to a welding tool for pipeline welding. Background Art

[0002] Welding uses a variety of energy sources, including gas flame, arc, laser, electron beam, friction, and ultrasonics. Besides being used in factories, welding can also be performed in a variety of environments, including the field, underwater, and in space. Regardless of the location, welding is a manufacturing process and technology that primarily heats and melts metals or other thermoplastic materials, such as plastics, to join them. Currently, when two steel pipes are butted and welded, welding fixtures are required to clamp and secure the pipes.

[0003] For example, a welding tool disclosed in Chinese patent publication number CN220073784U includes a platform and two clamping assemblies that can be moved closer to or away from each other by a driving mechanism arranged on the platform, the clamping assembly including a clamping plate, a clamping groove being arranged on one side of the clamping plate, a slide groove being arranged in the clamping plate, two notches of the slide groove being located on the top wall inside the clamping groove, a tightening band being arranged in the cavity of the clamping groove. The utility model provides two clamping plates in the welding tool and a tightening band in the clamping plates, and utilizes the stretchable and contractible characteristics of the tightening band to tighten the steel pipe, thereby achieving the effect of fixing the steel pipe. The structure can be adjusted according to the size of the steel pipe, and the adjustment is quick and convenient, which effectively improves the practicality of the welding tool, wherein the tightening band can effectively increase the contact area between the steel pipe and the clamping assembly, thereby increasing the fixing stability of the steel pipe;

[0004] Some problems were found during the use of the above-mentioned existing welding tool. First, metal pipes are often heavy and difficult to move simply by manpower during installation. Auxiliary equipment such as overhead cranes are often required for lifting. However, the clamping plate of the device will interfere with the lifting of the pipe from above or below, which makes the installation of heavier pipes more difficult. Secondly, when welding the pipe, it is often necessary to go around the interface, requiring the welder to rotate and move around the pipe, which is very inconvenient. Utility Model Content

[0005] The purpose of the present invention is to provide a welding tool to solve the existing problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a welding tool, comprising a base, on which two V-shaped brackets are symmetrically installed for sliding movement in the front and rear directions, and connecting slides are symmetrically provided in the left and right sides of the V-shaped bracket, and a roller limiting slide is slidably installed in the connecting slide, and a supporting roller is rotatably installed on the roller limiting slide, and an extrusion frame is rotatably connected to the V-shaped bracket, and a threaded sleeve is embedded and installed on the extrusion frame, and an adjusting screw is installed on the inner thread of the threaded sleeve, and the lower end of the adjusting screw is rotatably connected to the extrusion roller frame, and a fixed extrusion roller is rotatably installed on the extrusion roller frame, and a plurality of limiting holes are provided at one end of the fixed extrusion roller, and a limiting groove is provided in the extrusion roller frame, and a limiting pin is slidably installed in the limiting groove, and the limiting pin cooperates with the limiting hole.

[0007] Preferably, a limiting slide groove is provided on the base, a bidirectional screw is rotatably installed in the limiting slide groove, a driving motor is fixedly connected to the front side of the base, and the output end of the driving motor is fixedly connected to the bidirectional screw.

[0008] Preferably, a limiting slider is fixedly connected to the lower side of the V-shaped bracket, and a first threaded through hole is provided in the limiting slider, and the first threaded through hole cooperates with the thread of the bidirectional screw.

[0009] Preferably, a second screw is rotatably installed in the connecting slide, and a second threaded through hole is opened in the roller limiting slide, and the second threaded through hole is matched with the thread of the second screw.

[0010] Preferably, a through hole is opened in the convex edge of one side of the extrusion frame, and a fixing bolt is arranged in the through hole. A threaded fixing hole is opened on the upper surface of the V-shaped bracket near the edge of one side, and the threaded fixing hole is threadedly matched with the fixing bolt.

[0011] Preferably, a limiting sliding hole is provided on the extrusion frame and located in front and behind the threaded sleeve, and a limiting sliding rod is fixed on the extrusion roller frame and located in front and behind the adjusting screw, and the limiting sliding rod is slidably engaged with the limiting sliding hole.

[0012] Preferably, a spring pad is fixedly connected to the limit latch, a return spring is sleeved on the limit latch, and a pull ring is fixedly connected to one end of the limit latch.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. Remove the restriction on the extrusion frame by unscrewing the fixing bolts. Rotating the extrusion frame can expose the top of the V-shaped bracket. The pipe can be hoisted by equipment such as a crane and placed inside the V-shaped groove of the V-shaped bracket. The heavier pipe can be installed with auxiliary hoisting equipment, which facilitates pipe installation and reduces manpower usage.

[0015] 2. The two supporting rollers and the fixed squeezing roller form a triangle to clamp the fixed pipe. The supporting rollers and the fixed squeezing roller can rotate independently, so that the pipe can be rotated after being fixed, thereby adjusting the position of the pipe connection. The welder does not need to move, and can weld a circle of the connection by rotating the pipe.

[0016] 3. By threading the second screw rod in conjunction with the second threaded through hole, rotating the second screw rod can drive the roller limiting slide to move, thereby adjusting the distance between the two supporting rollers, so that the supporting rollers can support pipes of different thicknesses, thereby enabling the device to clamp and fix pipes of different thicknesses, and having a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a cross-sectional view of the utility model;

[0019] Figure 3 For the utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a schematic diagram of the V-shaped bracket and extrusion frame structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the roller limiting slide of the utility model;

[0022] Figure 6 It is a partial exploded view of the utility model.

[0023] In the figure: 1. Base; 101. Limiting slide; 102. Bidirectional screw; 103. Driving motor; 2. V-shaped bracket; 201. Connecting slide; 202. Second screw; 203. Threaded fixing hole; 204. Limiting slider; 205. First threaded through hole; 3. Roller limiting slide; 301. Second threaded through hole; 302. Support roller; 4. Extrusion frame; 401. Through hole; 402. Fixing bolt; 403. Threaded sleeve; 404. Limiting slide; 5. Extrusion roller frame; 501. Fixed extrusion roller; 502. Limiting hole; 503. Adjusting screw; 504. Limiting slide; 6. Limiting groove; 601. Limiting pin; 602. Spring washer; 603. Return spring; 604. Pull ring. DETAILED DESCRIPTION

[0024] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-6 The utility model provides a technical solution: a welding tool, including a base 1, two V-shaped brackets 2 are symmetrically slidably installed on the base 1, and a connecting slide 201 is symmetrically provided in the V-shaped bracket 2. A roller limiting slide 3 is slidably installed in the connecting slide 201, and a supporting roller 302 is rotatably installed on the roller limiting slide 3. An extrusion frame 4 is rotatably connected to the V-shaped bracket 2, and a threaded sleeve 403 is embedded and installed on the extrusion frame 4. An adjusting screw 503 is installed on the inner thread of the threaded sleeve 403, and the lower end of the adjusting screw 503 is rotatably connected to the extrusion roller frame 5. A fixed extrusion roller 501 is rotatably installed on the extrusion roller frame 5, and a plurality of limiting holes 502 are provided at one end of the fixed extrusion roller 501. A limiting groove 6 is provided in the extrusion roller frame 5, and a limiting pin 601 is slidably installed in the limiting groove 6. The limiting pin 601 cooperates with the limiting hole 502.

[0026] In this embodiment, the two supporting rollers 302 cooperate with the fixed squeezing roller 501. The two supporting rollers 302 are respectively arranged in the inclined surfaces on both sides of the center of the V-shaped bracket 2, which can support the pipe to be placed on the V-shaped bracket 2. The rotating adjusting screw 503 can drive the squeezing roller frame 5 to move downward. The downward movement of the squeezing roller frame 5 will drive the fixed squeezing roller 501 to move downward. The fixed squeezing roller 501 is used to squeeze the pipe downward, so that the pipe can be fixed in the device. At the same time, the triangular supporting rollers 302 and the fixed squeezing roller 501 are used to fix the pipe. The supporting rollers 302 and the fixed squeezing roller 501 can rotate separately, so that the pipe can be rotated after being fixed, thereby adjusting the position of the pipe connection, so that the welder does not need to move, and can weld a circle of the connection by rotating the pipe. The squeezing frame 4 is rotatably installed on the V-shaped bracket 2. After the restriction on the squeezing frame 4 is released, the squeezing frame 4 can rotate to one side, such as Figure 4 In the state shown, the top of the V-shaped bracket 2 is completely exposed, and the pipe can be hoisted by equipment such as a crane and placed inside the V-shaped groove of the V-shaped bracket 2. The roller limiting slide 3 is slidably installed inside the connecting slide 201. By adjusting the position of the roller limiting slide 3, the distance between the two supporting rollers 302 can be adjusted to adapt to the clamping and fixation of pipes of different thicknesses.

[0027] Among them, in order to achieve the purpose of adjusting the distance between the two V-shaped brackets 2, this device adopts the following technical solutions: a limiting groove 101 is opened on the base 1, and a bidirectional screw 102 is rotatably installed in the limiting groove 101. A driving motor 103 is fixedly connected to the front of the base 1, and the output end of the driving motor 103 is fixedly connected to the bidirectional screw 102. A limiting slider 204 is fixedly connected to the bottom of the V-shaped bracket 2, and a first threaded through hole 205 is opened in the limiting slider 204, and the first threaded through hole 205 is threadedly matched with the bidirectional screw 102. A second screw 202 is rotatably installed in the connecting groove 201, and a second threaded through hole 301 is opened in the roller limiting slide 3, and the second threaded through hole 301 is threadedly matched with the second screw 202.

[0028] By starting the drive motor 103, the bidirectional screw 102 can be driven to rotate, and the bidirectional screw 102 is threadedly engaged with the first threaded through hole 205, so that the rotation of the bidirectional screw 102 can drive the limit slider 204 to move, and the movement of the limit slider 204 will drive the V-shaped bracket 2 to move, thereby adjusting the distance between the two V-shaped brackets 2, so that the clamped pipes are continuously close to each other, and the connection is welded using welding equipment. The second screw 202 is threadedly engaged with the second threaded through hole 301, and rotating the second screw 202 can drive the roller limit slide 3 to move, thereby adjusting the distance between the two support rollers 302, so that the support rollers 302 can support pipes of different thicknesses.

[0029] Among them, in order to achieve the purpose of limiting the rotation of the fixed extrusion roller 501, this device adopts the following technical solutions: a through hole 401 is opened in the convex edge of one side of the extrusion frame 4, and a fixing bolt 402 is arranged in the through hole 401; a threaded fixing hole 203 is opened on the V-shaped bracket 2 near one side edge, and the threaded fixing hole 203 is threadedly matched with the fixing bolt 402; a limiting sliding hole 404 is opened on the extrusion frame 4 and located in front and behind the threaded sleeve 403; a limiting sliding rod 504 is fixed on the extrusion roller frame 5 and located in front and behind the adjusting screw 503; the limiting sliding rod 504 is slidably matched with the limiting sliding hole 404; a spring pad 602 is fixed on the limiting latch 601; a return spring 603 is sleeved on the limiting latch 601; and a pull ring 604 is fixed on one end of the limiting latch 601.

[0030] By passing the fixing bolt 402 through the through hole 401 and screwing it into the threaded fixing hole 203, the convex edge of one side of the extrusion frame 4 can be fixed on the V-shaped bracket 2, thereby fixing the extrusion frame 4 to prevent the extrusion frame 4 from rotating at will. The limiting slide bar 504 slides in cooperation with the limiting slide hole 404 to limit the extrusion roller frame 5 to move only up and down. The return spring 603 can provide a certain thrust for the spring pad 602. The spring pad 602 is subjected to the thrust to drive the limiting pin 601 to insert into the limiting hole 502, thereby limiting the rotation of the fixed extrusion roller 501, thereby preventing the pipe from rotating at will and affecting the welding during the welding process. The pull ring 604 is used to drive the limiting pin 601 to move out of the limiting hole 502 to release the restriction on the fixed extrusion roller 501. At this time, the fixed extrusion roller 501 can rotate, and the pipe can automatically rotate to adjust the welding position.

[0031] The working principle and use process of the utility model: when using, the device needs to be placed in a suitable position, unscrew the fixing bolt 402 to release the restriction of the extrusion frame 4, and rotate the extrusion frame 4 to expose the upper part of the V-shaped bracket 2, such as Figure 4 In the state shown, the pipe can be hoisted from above and placed on the V-shaped bracket 2, and then the extrusion frame 4 is rotated to cover the V-shaped bracket 2, and the fixing bolt 402 is passed through the through hole 401 and screwed into the threaded fixing hole 203, so that the convex edge of one side of the extrusion frame 4 can be fixed on the V-shaped bracket 2, and then the extrusion frame 4 can be fixed. Rotating the adjusting screw 503 can drive the extrusion roller frame 5 to move downward, and the downward movement of the extrusion roller frame 5 will drive the fixed extrusion roller 501 to move downward. The fixed extrusion roller 501 is used to squeeze the pipe downward, and the pipe can be fixed in the device. Starting the drive motor 103 can drive the bidirectional screw 102 to rotate, and the bidirectional screw 102 and the first threaded through hole 401 are screwed together. The hole 205 is threadedly matched, so that the rotation of the bidirectional screw 102 can drive the limit slider 204 to move, and the movement of the limit slider 204 will drive the V-shaped bracket 2 to move, thereby adjusting the distance between the pipes fixed on the two V-shaped brackets 2, so that the two pipes can be fitted together for welding, and the pull ring 604 is pulled to drive the limit pin 601 to move out of the limit hole 502, so that the restriction on the fixed squeezing roller 501 can be released. At this time, the fixed squeezing roller 501 and the supporting roller 302 can all rotate, and then the clamped pipe can also rotate. Rotating the pipe can adjust the position of the connection, so that the welder does not need to move, and can weld a circle of the connection by rotating the pipe.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding tool, comprising a base (1), characterized in that: Two V-shaped brackets (2) are symmetrically slidably mounted on the base (1) in a front-to-back manner. Connecting chutes (201) are symmetrically provided in the V-shaped brackets (2). A roller limiting slide (3) is slidably mounted in the connecting chutes (201). A supporting roller (302) is rotatably mounted on the roller limiting slide (3). An extrusion frame (4) is rotatably connected to the V-shaped bracket (2). A threaded sleeve (403) is embedded and mounted on the extrusion frame (4). The threaded sleeve (403) An adjusting screw (503) is installed on the internal thread, and the lower end of the adjusting screw (503) is rotatably connected to the squeezing roller frame (5). A fixed squeezing roller (501) is rotatably installed on the squeezing roller frame (5), and a plurality of limiting holes (502) are provided at one end of the fixed squeezing roller (501). A limiting groove (6) is provided in the squeezing roller frame (5), and a limiting pin (601) is slidably installed in the limiting groove (6). The limiting pin (601) and the limiting hole (502) cooperate with each other.

2. A welding tool according to claim 1, characterized in that: A limiting slide groove (101) is provided on the base (1), a bidirectional screw (102) is rotatably installed in the limiting slide groove (101), a driving motor (103) is fixedly connected to the front of the base (1), and an output end of the driving motor (103) is fixedly connected to the bidirectional screw (102).

3. A welding tool according to claim 2, characterized in that: A limiting slider (204) is fixedly connected to the lower side of the V-shaped bracket (2), and a first threaded through hole (205) is provided in the limiting slider (204), and the first threaded through hole (205) is threadably matched with the bidirectional screw (102).

4. The welding tool according to claim 1, characterized in that: A second screw rod (202) is rotatably installed in the connecting slide groove (201), and a second threaded through hole (301) is provided in the roller limiting slide (3), and the second threaded through hole (301) is threadably matched with the second screw rod (202).

5. The welding tool according to claim 1, characterized in that: A through hole (401) is provided in a convex edge on one side of the extrusion frame (4), a fixing bolt (402) is provided in the through hole (401), and a threaded fixing hole (203) is provided on the upper surface of the V-shaped bracket (2) near one side edge, the threaded fixing hole (203) being threadedly matched with the fixing bolt (402).

6. The welding tool according to claim 1, characterized in that: A limiting sliding hole (404) is provided on the extrusion frame (4) and located in front and behind the threaded sleeve (403); a limiting sliding rod (504) is fixedly connected on the extrusion roller frame (5) and located in front and behind the adjusting screw (503); the limiting sliding rod (504) is slidably matched with the limiting sliding hole (404).

7. The welding tool according to claim 1, characterized in that: A spring pad (602) is fixedly connected to the limit pin (601), a return spring (603) is sleeved on the limit pin (601), and a pull ring (604) is fixedly connected to one end of the limit pin (601).

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