Steel pipe welding device

Abstract

The utility model belongs to the technical field of steel pipe welding devices, and particularly relates to a steel pipe welding device which comprises a main plate. A clamping device is mounted on the main plate; a motor is mounted in the mounting groove; the tops of the connecting block and the sliding block are fixedly connected with an acting box. A small motor is mounted on the outer side surface of one end of the action box; a bidirectional screw rod is mounted at the end part of an output shaft, inserted into the convex groove, of the small motor; the top of the convex action block is fixedly connected with a clamping plate block; a lifting device is mounted on the mounting base; a hydraulic cylinder is mounted in the fixing groove; the top of the telescopic rod is fixed to the bottom end face of the lifting box through a connecting plate. Sliding rods are fixedly connected to the two ends of the top of the mounting base; through the combined action of the clamping device and the lifting device, the butt joint precision of a steel pipe welding opening is improved, the welding operation quality is guaranteed, the position of a to-be-welded steel pipe is in a horizontal state all the time, and the welding operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe welding devices, in particular to a steel pipe welding device. Background Art

[0002] In the process of steel structure product production, in order to meet production needs, some parts and components need to be welded to ensure their connection effect. Among them, the most common is the welding of steel pipes;

[0003] The existing steel pipe welding device is composed of an operating table, a welding device, a mobile structure, a fixing device and other structures. By placing the two sections of steel pipes to be welded within the range of the fixing device on the operating table and opening the mobile structure, the welding of the steel pipe is achieved with the cooperation of the welding device.

[0004] However, when the existing welding device is in use, the joints between the steel pipes are prone to deviation, resulting in low precision in the jointing of the steel pipes and poor quality of the welding operation. In addition, when welding steel pipes of different sizes, a lot of time is required to readjust the position of the steel pipe connection, which makes the welding device less efficient. Therefore, a steel pipe welding device is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve some existing problems of steel pipe welding devices, the utility model provides a steel pipe welding device.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a steel pipe welding device described in the utility model comprises a main board; support rods are fixedly connected to the four corners of the bottom of the main board; a fixing rod is fixedly connected to the bottom of the support rod; a clamping device is installed on the main board; the clamping device comprises a No. 1 movable groove; a No. 1 movable groove is provided at an eccentric position at one end of the top of the main board; a No. 2 movable groove is provided at one end of the top of the main board at a symmetrical position of the No. 1 movable groove; an installation groove is provided at one end of the No. 1 movable groove away from the center point of the main board; a motor is installed inside the installation groove; a screw is installed at the end of the output shaft of the motor; the end of the screw is rotatably installed on the inner wall end face of the No. 1 movable groove; a connecting block is sleeved and installed on the outside of the cross section of the screw;

[0007] An action rod is fixedly connected to the inner wall end face of the No. 2 movable groove; a sliding block is sleeved and installed on the outside of the cross-section of the action rod; an action box is fixedly connected to the top of the connecting block and the sliding block; an action box is also fixedly connected to the top end face of the main board near the end of the No. 1 movable groove; a convex groove is opened inside the action box; a small motor is installed on the outer side face of one end of the action box; the output shaft end of the small motor passes through the plate body of the action box and is inserted into the convex groove; a bidirectional screw is installed on the output shaft end of the small motor inserted into the convex groove; a convex action block is sleeved and installed on the cross-section of the bidirectional screw; a clamping plate is fixedly connected to the top of the convex action block; an arc groove is opened on the opposite surface of the clamping plate; the fixing effect of steel rods of different sizes is realized.

[0008] Preferably, a rubber strip is installed on the arc surface of the inner wall of the arc groove; the horizontal plane where the bottom end surface of the clamping plate is located is higher than the horizontal plane where the top end surface of the convex action block is located; the stability of the steel pipe clamping is ensured.

[0009] Preferably, mounting bases are installed at both ends of the top of the main board; a lifting box is installed on the top of the mounting base; a rotating cavity is opened on the top of the lifting box; a roller is rotatably installed on the end surface of the inner wall of the rotating cavity through a pin shaft; the height of the horizontal plane where the bottom end surface of the roller's action range is located is the same as the height of the horizontal plane where the top end surface of the lifting box is located; this ensures that the steel pipe can maintain a horizontal state during welding.

[0010] Preferably, a lifting device is installed on the mounting base; the lifting device includes a fixing groove; a fixing groove is opened inside the mounting base; a through hole is opened at the top of the fixing groove; a pressing groove is opened at the top of the mounting base; the pressing groove is connected with the fixing groove through the through hole; thereby ensuring that the lifting device can function smoothly.

[0011] Preferably, a hydraulic cylinder is installed inside the fixed groove; a telescopic rod is installed on the top of the hydraulic cylinder; the top of the telescopic rod is fixed to the bottom end surface of the lifting box through a connecting plate; the size of the pressing groove is larger than the size of the connecting plate; the lifting and lowering effect of the lifting box is achieved.

[0012] Preferably, sliding rods are fixedly connected to the top two ends of the mounting base; sliding holes are opened at the bottom two ends of the lifting box; the lifting box is sleeved on the outside of the cross section of the sliding rods through the sliding holes; and the stability of the lifting box during the lifting process is ensured.

[0013] The utility model is beneficial in that:

[0014] 1. The utility model adopts the structural design of the clamping device, and the steel rods to be welded are placed on the top of the rollers inside the lifting box, and the ends of the steel pipes are located within the action range of the clamping plates. Then, the small motor is turned on, and the bidirectional screw inside the convex groove rotates, and the convex action block drives the clamping plates to move toward each other. Under the action of the rubber strip in the arc groove, the steel pipe to be welded is clamped and fixed. Subsequently, the motor inside the installation groove is turned on, and the screw inside the No. 1 movable groove rotates. Under the cooperation of the slider and the action rod, the connecting block drives the action box to move toward each other in the direction of the No. 2 movable groove, so that the positions of the ports to be welded are gradually approached and butted, thereby improving the butting accuracy of the steel pipe welding ports and ensuring the quality of the welding operation.

[0015] 2. The utility model adopts the structural design of the lifting device, and due to the action of the clamping plate, the fixed position of the steel pipe will change. Then, the hydraulic cylinder inside the fixing groove is opened, and the telescopic rod passes through the through hole and rises. Under the action of the sliding rod and the sliding hole, the connecting plate is separated from the pressing groove and drives the lifting box to move upward, thereby realizing the lifting effect of the lifting box, so that the position of the steel pipe to be welded is always in a horizontal state, without spending a lot of time to adjust the docking position of the steel pipe, thereby improving the efficiency of the welding operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is an isometric structural schematic diagram;

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the action box;

[0019] Figure 3 It is a structural diagram of the mainboard;

[0020] Figure 4 It is a schematic diagram of the structure of the clamping plate;

[0021] Figure 5 It is a structural schematic diagram of the lifting device;

[0022] Figure 6 This is an isometric structural diagram.

[0023] In the figure: 1. main board; 2. support rod; 3. fixed rod; 401. movable groove No. 1; 402. movable groove No. 2; 403. mounting groove; 404. motor; 405. screw rod; 406. action rod; 407. connecting block; 408. slider; 409. action box; 410. convex groove; 411. small motor; 412. bidirectional screw rod; 413. convex action block; 414. clamping plate; 415. arc groove; 416. rubber strip; 417. mounting base; 418. lifting box; 419. rotating chamber; 420. roller; 501. fixed groove; 502. hydraulic cylinder; 503. telescopic rod; 504. through hole; 505. pressing groove; 506. slide rod; 6. support plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4 As shown, a steel pipe welding device comprises a main board 1; support rods 2 are fixedly connected to the four corners of the bottom of the main board 1; a fixing rod 3 is fixedly connected to the bottom of the support rod 2; a clamping device is installed on the main board 1; the clamping device comprises a No. 1 movable groove 401; a No. 1 movable groove 401 is provided at an eccentric position at one end of the top of the main board 1; a No. 2 movable groove 402 is provided at one end of the top of the main board 1 at a symmetrical position of the No. 1 movable groove 401; a mounting groove 403 is provided at one end of the No. 1 movable groove 401 away from the center point of the main board 1; a motor 404 is installed inside the mounting groove 403; a screw 405 is installed at the end of the output shaft of the motor 404; the end of the screw 405 is rotatably installed on the inner wall end face of the No. 1 movable groove 401; a connecting block 407 is sleeved and installed on the outside of the cross section of the screw 405;

[0026] An action rod 406 is fixedly connected to the inner wall end face of the second movable groove 402; a slider 408 is installed on the outer cross-section of the action rod 406; an action box 409 is fixedly connected to the top of the connecting block 407 and the slider 408; an action box 409 is also fixedly connected to the top end face of the main board 1 near the end of the first movable groove 401; a convex groove 410 is opened inside the action box 409; a small motor 411 is installed on the outer side face of one end of the action box 409; the output shaft end of the small motor 411 passes through the plate body of the action box 409 and is inserted into the convex groove 410; a bidirectional screw rod 412 is installed on the output shaft end of the small motor 411 inserted into the convex groove 410; the bidirectional screw rod 412 The cross-section sleeve is installed with a convex action block 413; a clamping plate 414 is fixedly connected to the top of the convex action block 413; an arc groove 415 is provided on the opposite surface of the clamping plate 414; a rubber strip 416 is installed on the inner wall arc surface of the arc groove 415; the horizontal plane where the bottom end surface of the clamping plate 414 is located is higher than the horizontal plane where the top end surface of the convex action block 413 is located; mounting bases 417 are installed at both ends of the top of the main board 1; a lifting box 418 is installed on the top of the mounting base 417; a rotating chamber 419 is provided on the top of the lifting box 418; a roller 420 is rotatably installed on the inner wall end surface of the rotating chamber 419 through a pin shaft; the bottom end of the action range of the roller 420 The height of the horizontal plane where the surface is located is the same as the height of the horizontal plane where the top end surface of the lifting box 418 is located; when working, in the process of producing steel structure products, in order to meet production needs, it is necessary to weld some parts and components to ensure their connection effect. Among them, the most common is the welding of steel pipes. However, when the existing welding device is in action, the docking interface between the steel pipes is prone to deviation, which makes the docking accuracy of the steel pipes not high, resulting in poor quality of the welding operation. The present application uses a clamping device to place the steel rods to be welded on the top of the rollers 420 inside the lifting box 418, and make the ends of the steel pipes located within the action range of the clamping plate 414. Then, turn on the small motor 411, the bidirectional screw rod 412 inside the convex groove 410 rotates, and the convex action block 413 drives the clamping plate 414 to move toward each other, and under the action of the rubber strip 416 in the arc groove 415, the steel pipe to be welded is clamped and fixed. Subsequently, turn on the motor 404 inside the installation groove 403, and the screw rod 405 inside the No. 1 movable groove 401 rotates. With the cooperation of the slider 408 and the action rod 406, the connecting block 407 drives the action box 409 to move toward each other in the direction of the No. 2 movable groove 402, so that the position of the welded joint is gradually approached and butted, thereby improving the butt joint accuracy of the steel pipe welded joint and ensuring the quality of the welding operation.

[0027] See also Figure 5As shown, a lifting device is installed on the mounting base 417; the lifting device includes a fixing groove 501; a fixing groove 501 is opened inside the mounting base 417; a through hole 504 is opened at the top of the fixing groove 501; a pressing groove 505 is opened at the top of the mounting base 417; the pressing groove 505 is connected with the fixing groove 501 through the through hole 504; a hydraulic cylinder 502 is installed inside the fixing groove 501; a telescopic rod 503 is installed on the top of the hydraulic cylinder 502; the top of the telescopic rod 503 is fixed to the bottom end surface of the lifting box 418 through a connecting plate; the size of the pressing groove 505 is larger than the size of the connecting plate; sliding rods 506 are fixedly connected to the top ends of the mounting base 417; sliding holes are opened at the bottom ends of the lifting box 418; the lifting box 418 is sleeved on the cross section of the sliding rod 506 through the sliding holes When working, when welding steel pipes of different sizes, it takes a lot of time to readjust the position of the steel pipe connection, which makes the welding device less efficient. The present application works through a lifting device. When the size of the steel rod to be welded changes, the clamping plate 414 will change the fixed position of the steel pipe. Then, the hydraulic cylinder 502 inside the fixed groove 501 is opened, and the telescopic rod 503 passes through the through hole 504 and rises. Under the action of the sliding rod 506 and the sliding hole, the connecting plate is disengaged from the pressing groove 505 and drives the lifting box 418 to move upward, thereby realizing the lifting and lowering effect of the lifting box 418, so that the position of the steel pipe to be welded is always in a horizontal state, and there is no need to spend a lot of time to adjust the docking position of the steel pipe, thereby improving the efficiency of the welding operation.

[0028] See also Figure 6 As shown, as another embodiment of the present invention, a support plate 6 is provided at the bottom of the small motor 411; during operation, the small motor 411 can be ensured to have a more stable operating state.

[0029] Working principle: In the process of steel structure product production, in order to meet production needs, it is necessary to weld some parts and components to ensure their connection effect. Among them, the most common is the welding of steel pipes. However, when the existing welding device is in action, the interface between the steel pipes is prone to deviation, which makes the docking accuracy of the steel pipes not high, resulting in poor quality of welding operations. The present application is implemented through a clamping device, by placing the steel rods to be welded on the top of the rollers 420 inside the lifting box 418, and making the ends of the steel pipes within the action range of the clamping plate 414, and then, turning on the small motor 411, the bidirectional lead screw 412 inside the convex groove 410 rotates, and the convex action block 413 drives the clamping plate 414 to move toward each other. Under the action of the rubber strip 416 in the arc groove 415, the steel pipe to be welded is clamped and fixed. Subsequently, the motor 404 inside the mounting groove 403 is turned on, and the screw 405 inside the No. 1 movable groove 401 rotates. 06, the connecting block 407 drives the action box 409 to move toward each other in the direction of the second moving groove 402, so that the position of the welded joint is gradually approached and butted, thereby improving the butt joint accuracy of the steel pipe welded joint and ensuring the quality of the welding operation; in addition, when welding steel pipes of different sizes, it takes a lot of time to readjust the position of the steel pipe connection, which makes the efficiency of the welding device low. The present application acts through a lifting device. When the size of the steel rod to be welded changes, the fixed position of the steel pipe will change due to the action of the clamping plate 414. Then, the hydraulic cylinder 502 inside the fixed groove 501 is opened, and the telescopic rod 503 rises through the through hole 504. Under the action of the sliding rod 506 and the sliding hole, the connecting plate is disengaged from the pressing groove 505 and drives the lifting box 418 to move upward, realizing the lifting effect of the lifting box 418, so that the position of the steel pipe to be welded is always in a horizontal state, without spending a lot of time to adjust the butt joint position of the steel pipe, thereby improving the efficiency of the welding operation.

[0030] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A steel pipe welding device, comprising a main board (1); support rods (2) are fixedly connected to the four corners of the bottom of the main board (1); a fixing rod (3) is fixedly connected to the bottom of the support rod (2); a clamping device is installed on the main board (1); characterized in that: The clamping device comprises a No. 1 movable groove (401); a No. 1 movable groove (401) is provided at an eccentric position at one end of the top of the main board (1); a No. 2 movable groove (402) is provided at one end of the top of the main board (1) at a symmetrical position of the No. 1 movable groove (401); a mounting groove (403) is provided at one end of the No. 1 movable groove (401) away from the center point of the main board (1); a motor (404) is installed inside the mounting groove (403); a screw rod (405) is installed at the end of the output shaft of the motor (404); the end of the screw rod (405) is rotatably installed on the inner wall end face of the No. 1 movable groove (401); a connecting block (407) is sleeved and installed outside the cross section of the screw rod (405); An action rod (406) is fixedly connected to the inner wall end surface of the second movable groove (402); a sliding block (408) is sleeved and installed on the outer cross section of the action rod (406); an action box (409) is fixedly connected to the top of the connecting block (407) and the sliding block (408); an action box (409) is also fixedly connected to the top end surface of the main board (1) near the end of the first movable groove (401); a convex groove (410) is opened inside the action box (409); a convex groove (410) is installed on the outer side surface of one end of the action box (409) A small motor (411) is installed; the output shaft end of the small motor (411) passes through the plate body of the action box (409) and is inserted into the convex groove (410); a bidirectional screw rod (412) is installed on the output shaft end of the small motor (411) inserted into the convex groove (410); a convex action block (413) is installed on the cross section of the bidirectional screw rod (412); a clamping plate (414) is fixedly connected to the top of the convex action block (413); an arc groove (415) is opened on the opposite surface of the clamping plate (414).

2. A steel pipe welding device according to claim 1, characterized in that: A rubber strip (416) is installed on the inner wall arc surface of the arc groove (415); the horizontal plane where the bottom end surface of the clamping plate (414) is located is higher than the horizontal plane where the top end surface of the convex action block (413) is located.

3. A steel pipe welding device according to claim 2, characterized in that: Both ends of the top of the main board (1) are provided with mounting bases (417); a lifting box (418) is installed on the top of the mounting base (417); a rotating chamber (419) is provided on the top of the lifting box (418); a roller (420) is rotatably mounted on the inner wall end surface of the rotating chamber (419) via a pin shaft; the height of the horizontal plane where the bottom end surface of the action range of the roller (420) is located is the same as the height of the horizontal plane where the top end surface of the lifting box (418) is located.

4. A steel pipe welding device according to claim 3, characterized in that: A lifting device is installed on the mounting base (417); the lifting device comprises a fixing groove (501); a fixing groove (501) is provided inside the mounting base (417); a through hole (504) is provided at the top of the fixing groove (501); a pressing groove (505) is provided at the top of the mounting base (417); the pressing groove (505) is connected with the fixing groove (501) through the through hole (504).

5. A steel pipe welding device according to claim 4, characterized in that: A hydraulic cylinder (502) is installed inside the fixing groove (501); a telescopic rod (503) is installed on the top of the hydraulic cylinder (502); the top of the telescopic rod (503) is fixed to the bottom end surface of the lifting box (418) through a connecting plate; the size of the pressing groove (505) is larger than the size of the connecting plate.

6. A steel pipe welding device according to claim 5, characterized in that: The top two ends of the mounting base (417) are fixedly connected with sliding rods (506); the bottom two ends of the lifting box (418) are provided with sliding holes; the lifting box (418) is sleeved on the outside of the cross section of the sliding rod (506) through the sliding holes.

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