Straight piece type welding seam guide mechanism of high-frequency straight seam welded pipe unit

Abstract

The utility model relates to the technical field of straight seam steel pipe production, in particular to a straight piece type welding seam guide mechanism of a high-frequency straight seam welded pipe unit, which comprises a frame body, an extrusion mechanism is arranged in the frame body, the extrusion mechanism is provided with a pressing mechanism in a matched mode, and the extrusion mechanism comprises a connecting plate. A steel pipe is fed between the two arms of the U-shaped plate, then the threaded rod is rotated to drive the sleeve frame to move so that the first pressing plate can press the gap in the top of the steel pipe, meanwhile, the hydraulic cylinder is started to drive the movable plate to move in a reciprocating mode, the movable plate drives the two push plates to extrude the two sides of the steel pipe in a reciprocating mode through the two supporting arms, and the gap in the top of the steel pipe is smaller after the steel pipe is extruded. The first pressing plate abuts against the steel pipe to press and shape the top gap of the steel pipe, and the electric push rod is started to pull the second pressing plate in a reciprocating mode to press the pipe at the edge of the steel pipe gap on the first pressing plate, so that the pipe at the edge of the steel pipe gap is pressed to be flat, the top gap of the pipe is kept small through pressing, and welding of the pipe welding machine is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of straight seam steel pipe production, in particular to a straight sheet type weld seam guide mechanism for a high-frequency straight seam welded pipe unit. Background Art

[0002] When producing straight seam welded pipes, usually industrial equipment is used to curl and cut the plate to form a shaped steel pipe, and then the slit of the shaped steel pipe is welded to obtain a finished steel pipe. When welding the shaped steel pipe, a pipe welding unit is usually used to weld the pipe, which can automatically transport the pipe so that its slit faces upward and passes through the pipe welding machine, so that the slit of the pipe is welded by the welding head inside the pipe welding machine when passing through the inside of the pipe welding machine. However, during the production process of some shaped pipes, the elasticity of the pipe steel itself may cause a large gap on the top of the pipe, making it difficult for the pipe welding machine to weld the pipe, which is inconvenient. In addition, the material at the edge of the slit of some shaped steel pipes may be slightly warped due to factors such as collision, which is easy to affect the welding effect of the pipe welding machine, which is inconvenient. Utility Model Content

[0003] The utility model aims to provide a straight-piece weld guide mechanism for a high-frequency straight-seam pipe welding machine unit to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A straight-piece weld guide mechanism for a high-frequency straight-seam welded pipe unit comprises a frame, an extrusion mechanism is arranged inside the frame, and a pressing mechanism is arranged in conjunction with the extrusion mechanism;

[0006] The extrusion mechanism includes a connecting plate, and the bottom end of the connecting plate is fixedly connected to the bottom surface of the frame body, the top of the connecting plate is fixedly connected to a U-shaped plate, and sliding holes are opened on one side of both arms of the U-shaped plate, and slide plates are slidably sleeved inside the two sliding holes, and the adjacent ends of the two slide plates are fixedly connected to push plates, the top surface of the frame is fixedly connected to a hydraulic cylinder, and the movable end of the hydraulic cylinder passes through the top surface of the frame body and is fixedly connected to a movable plate, the movable plate is slidably connected between two opposite inner side walls of the frame, and the two slide plates are rotatably connected to support arms at the ends facing away from each other, and the two support arms are rotatably connected to the two ends of the movable plate respectively.

[0007] Preferably, bottom plates are fixedly connected to both sides of the bottom surface of the frame.

[0008] Furthermore, two opposite inner side walls of the frame are fixedly connected with U-shaped brackets, and two slide plates are respectively slidably sleeved between two arms of the two U-shaped brackets.

[0009] Further, the pressing mechanism includes a sleeve frame, and the inner wall of the sleeve frame is slidably sleeved with the outer wall of the frame body, a T-shaped plate is fixedly connected between the two opposite inner walls of the sleeve frame, the bottom end of the T-shaped plate is located below the sleeve frame, and the T-shaped plate is matched with a first pressing plate, the top surface of the first pressing plate is fixedly connected with a clamping strip, the bottom surface of the T-shaped plate is provided with an embedding groove, and the clamping strip is slidably clamped in the embedding groove, support plates are fixedly connected to both the top and bottom ends of one side of the frame body, and a screw is rotatably connected between the two support plates, one end of the sleeve frame is fixedly connected to an internal threaded barrel, and the inner side wall of the internal threaded barrel is screwed with the outer side wall of the screw rod.

[0010] Further, a fixing plate is fixedly connected between the two opposite inner side walls of the sleeve frame, and the fixing plate is located above the T-shaped plate, an electric push rod is fixedly connected to the top surface of the fixing plate, and the movable end of the electric push rod passes through the fixing plate and is fixedly connected to the U-shaped frame, one end of each arm of the U-shaped frame is fixedly connected to a plate body, and a clamping groove is provided on the bottom surfaces of the two plate bodies, the two plate bodies are matched with a second pressing plate, and the second pressing plate is located below the first pressing plate, a draw belt is fixedly connected to the top surface of the second pressing plate, two clamping rods are fixedly connected to the top end of the draw belt, and the two clamping rods are respectively movably clamped in the two clamping grooves, a through groove is provided on the top surface of the clamping strip, and a connecting hole is provided on the top surface of the T-shaped plate, and the draw belt is located inside the connecting hole and the through groove.

[0011] Furthermore, guide plates are fixedly connected at both ends of the T-shaped plate, and insertion rods are provided under the two guide plates, and rebound springs are fixedly connected between the top ends of the two insertion rods and the adjacent guide plates, two clamping holes are provided on the top surface of the clamping strip, and the two insertion rods are movably inserted into the two clamping holes respectively.

[0012] Preferably, both ends of the T-shaped plate are fixedly connected with sleeves, and the outer side walls of the two insertion rods are slidably sleeved inside the two sleeves respectively.

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

[0014] The steel pipe is fed between the two arms of the U-shaped plate, and the pull belt passes through the top gap of the steel pipe, so that the second pressing plate is located inside the steel pipe, and then the screw is rotated to drive the sleeve frame to move, so that the first pressing plate is pressed on the top gap of the steel pipe. At the same time, the hydraulic cylinder is started to drive the movable plate to move back and forth, so that the movable plate drives the two slides to move back and forth through the two supporting arms, thereby driving the two push plates to reciprocate and squeeze the two sides of the steel pipe, so that the steel pipe is squeezed and the top gap becomes smaller, and the first pressing plate contacts the steel pipe to limit the top gap of the steel pipe, and the electric push rod is started to reciprocate and pull the second pressing plate to press the pipe at the edge of the steel pipe gap on the first pressing plate, so that the pipe at the edge of the steel pipe gap is pressed flat, which is more convenient for welding by the pipe welding machine, and the top gap of the pipe is shaped by pressing to keep a small spacing, which is convenient for welding by the pipe welding machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is an exploded diagram of the extrusion mechanism structure in the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the pressure-actuating mechanism in the utility model;

[0018] Figure 4 It is a schematic diagram of the T-shaped plate and the plate body structure in the utility model;

[0019] Figure 5 It is a schematic diagram of the structure of the first pressing plate and the second pressing plate in the utility model.

[0020] In the figure: 100, frame; 110, bottom plate; 120, U-shaped bracket; 200, extrusion mechanism; 210, connecting plate; 220, U-shaped plate; 221, sliding hole; 230, hydraulic cylinder; 231, moving plate; 240, slide plate; 241, push plate; 242, support arm; 300, screw rod; 400, pressing mechanism; 410, sleeve frame; 411, internal threaded cylinder; 420, T-shaped Plate; 421, embedded groove; 422, connecting hole; 423, sleeve; 430, first pressure plate; 431, clamping strip; 432, through groove; 433, clamping hole; 440, second pressure plate; 441, drawstring; 442, clamping rod; 450, fixing plate; 451, electric push rod; 452, U-shaped frame; 460, plug rod; 461, rebound spring; 470, plate body; 471, clamping groove. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figures 1 to 5 In the embodiment of the utility model, a straight sheet type weld seam guide mechanism of a high frequency straight seam welded pipe unit includes a frame 100, an extrusion mechanism 200 is arranged inside the frame 100, and the extrusion mechanism 200 is matched with a pressing mechanism 400;

[0023] The extrusion mechanism 200 includes a connecting plate 210, and the bottom end of the connecting plate 210 is fixedly connected to the bottom surface of the frame 100, the top of the connecting plate 210 is fixedly connected to a U-shaped plate 220, and a sliding hole 221 is opened on one side of both arms of the U-shaped plate 220, and a slide plate 240 is slidably sleeved inside the two sliding holes 221, and the adjacent ends of the two slide plates 240 are fixedly connected to a push plate 241, the top surface of the frame 100 is fixedly connected to a hydraulic cylinder 230, and the movable end of the hydraulic cylinder 230 passes through the top surface of the frame 100 and is fixedly connected to a moving plate 231, the moving plate 231 is slidably connected between the two opposite inner side walls of the frame 100, the two slide plates 240 are rotatably connected to the ends thereof, and the two arms 242 are rotatably connected to the two ends of the moving plate 231, and the bottom plate 110 is fixedly connected to both sides of the bottom surface of the frame 100.

[0024] Specifically, the formed straight seam steel pipe is passed through the U-shaped plate 220, and then the user starts the hydraulic cylinder 230 to drive the movable plate 231 to move back and forth, so that the movable plate 231 presses the two support arms 242 to rotate back and forth toward each other and then reset, so that the two support arms 242 drive the two slide plates 240 to move back and forth, and the two push plates 241 reciprocate to squeeze the two sides of the formed steel pipe, and the reciprocating squeezing of the moving steel pipe makes the top gap smaller, and then the steel pipe is sent into the pipe welding machine by the pipe welding unit for welding, so that it is convenient for the pipe welding unit to weld the top gap of the steel pipe.

[0025] Embodiment 1

[0026] like Figure 1-2 As shown, in this embodiment, two opposite inner side walls of the frame 100 are fixedly connected with U-shaped brackets 120 , and two slide plates 240 are slidably sleeved between two arms of the two U-shaped brackets 120 .

[0027] In this embodiment, two U-shaped brackets 120 are used to support the two slide plates 240 , so that the slide plates 240 can be moved more smoothly when driven by the supporting arms 242 .

[0028] like Figure 3-5 As shown, in the present embodiment, the pressing mechanism 400 includes a sleeve frame 410, and the inner wall of the sleeve frame 410 is slidably sleeved with the outer wall of the frame body 100, a T-shaped plate 420 is fixedly connected between the two opposite inner walls of the sleeve frame 410, the bottom end of the T-shaped plate 420 is located below the sleeve frame 410, and the T-shaped plate 420 is equipped with a first pressing plate 430, a clamping strip 431 is fixedly connected to the top surface of the first pressing plate 430, an embedding groove 421 is provided on the bottom surface of the T-shaped plate 420, and the clamping strip 431 is slidably clamped in the embedding groove 421, support plates are fixedly connected to both ends of the top and bottom of one side of the frame body 100, and a screw 300 is rotatably connected between the two support plates, an internal threaded barrel 411 is fixedly connected to one end of the sleeve frame 410, and the inner wall of the internal threaded barrel 411 is screwed with the outer wall of the screw 300.

[0029] During specific implementation, the screw rod 300 is rotated to drive the internal threaded tube 411 and the sleeve frame 410 to slide on the frame body 100, thereby adjusting the height position of the sleeve frame 410, and the first pressing plate 430 is an arc-shaped plate structure, which can be adapted to different types of first pressing plates 430 according to different specifications of steel pipes, and the specifications of the clamping strips 431 on all types of first pressing plates 430 are the same. When in use, the first pressing plate 430 is fixed by sliding the clamping strips 431 into the embedded groove 421. Then, when the steel pipe is sent into the interior of the welding pipe machine by the welding pipe unit, the hydraulic cylinder 230 is started to make the two push plates 241 push the two sides of the steel pipe to make the straight seam at the top of the steel pipe smaller. At the same time, the screw rod 300 is rotated to adjust the height of the sleeve frame 410, so that the first pressing plate 430 is pressed on the gap at the top of the steel pipe, the steel pipe is limited and the gap at the top of the steel pipe is pressed to reduce the gap, which is convenient for the welding machine to perform welding.

[0030] like Figure 3-5 As shown, in this embodiment, a fixing plate 450 is fixedly connected between two opposite inner side walls of the sleeve frame 410, and the fixing plate 450 is located above the T-shaped plate 420. An electric push rod 451 is fixedly connected to the top surface of the fixing plate 450, and the movable end of the electric push rod 451 passes through the fixing plate 450 and is fixedly connected to a U-shaped frame 452. One end of each arm of the U-shaped frame 452 is fixedly connected to a plate body 470, and a card slot 471 is opened on the bottom surface of the two plate bodies 470. The two plate bodies 470 A second pressure plate 440 is provided and is located below the first pressure plate 430. A drawstring 441 is fixedly connected to the top surface of the second pressure plate 440. Two clamping rods 442 are fixedly connected to the top of the drawstring 441, and the two clamping rods 442 are movably clamped in two clamping slots 471 respectively. A through groove 432 is provided on the top surface of the clamping strip 431, and a connecting hole 422 is provided on the top surface of the T-shaped plate 420. The drawstring 441 is located inside the connecting hole 422 and the through groove 432.

[0031] In specific implementation, the second pressing plate 440 is also an arc-shaped plate structure, and different types of second pressing plates 440 can be matched according to steel pipes of different specifications. When in use, the second pressing plate 440 is placed under the first pressing plate 430, and then the pull belt 441 is passed through the through groove 432 on the first pressing plate 430 and the connecting hole 422 on the T-shaped plate 420, and then the two clamping rods 442 are slidably embedded in the clamping grooves 471 on the two plate bodies 470, and then when the steel pipe is sent into the welding machine by the welding pipe unit, the pull belt 441 passes through the top of the steel pipe The second pressing plate 440 is located inside the steel pipe, and then the electric push rod 451 is started to make reciprocating motion, so that the electric push rod 451 reciprocates and pulls the second pressing plate 440 upward, so that the second pressing plate 440 and the first pressing plate 430 are reciprocated and approached to press and flatten the steel at the edge of the steel pipe gap, and at the same time, the second pressing plate 440 reciprocates and presses the steel in the steel pipe gap on the first pressing plate 430 to shape the steel, so that the steel maintains its shape, thereby keeping the gap at the top of the steel in shape, which is convenient for subsequent welding by the pipe welding machine.

[0032] Embodiment 2

[0033] On the basis of Example 1, in order to compensate for the fact that the first pressure plate 430 in Example 1 is always in contact with the steel pipe, when the welding pipe unit drives the steel pipe to move, the friction force may drive the first pressure plate 430 to slide, causing the clamping strip 431 to slide out of the embedded groove 421. By setting the insertion rod 460, the effect of improving the fixation of the first pressure plate 430 is achieved.

[0034] like Figure 4 As shown, in the present embodiment, guide plates are fixedly connected at both ends of the T-shaped plate 420, and plug rods 460 are arranged under the two guide plates, and rebound springs 461 are fixedly connected between the top ends of the two plug rods 460 and the adjacent guide plates, two clamping holes 433 are provided on the top surface of the clamping strip 431, and the two plug rods 460 are movably inserted into the two clamping holes 433 respectively, and sleeves 423 are fixedly connected at both ends of the T-shaped plate 420, and the outer side walls of the two plug rods 460 are slidably sleeved in the two sleeves 423 respectively.

[0035] During specific implementation, when the clamping strip 431 on the first pressure plate 430 is slid into the embedding groove 421, the two insertion rods 460 are manually lifted, and then the clamping strip 431 is inserted into the embedding groove 421, and then the insertion rods 460 are released. After the clamping strip 431 slides to a suitable position, the two insertion rods 460 will be automatically inserted into the two clamping holes 433 on the clamping strip 431 under the push of the adjacent rebound springs 461, thereby improving the fixing effect of the clamping strip 431.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A straight-plate weld guide mechanism for a high-frequency straight-seam pipe welding machine unit, comprising a frame (100), characterized in that: The frame (100) is provided with an extrusion mechanism (200) inside, and the extrusion mechanism (200) is matched with a pressing mechanism (400); The squeezing mechanism (200) comprises a connecting plate (210), and the bottom end of the connecting plate (210) is fixedly connected to the inner bottom surface of the frame (100), the top end of the connecting plate (210) is fixedly connected to a U-shaped plate (220), and one side of both arms of the U-shaped plate (220) is provided with a sliding hole (221), the insides of the two sliding holes (221) are slidably sleeved with a sliding plate (240), and the adjacent ends of the two sliding plates (240) are fixedly connected to a push plate (241). The top surface of the frame (100) is fixedly connected to a hydraulic cylinder (230), and the movable end of the hydraulic cylinder (230) penetrates the inner top surface of the frame (100) and is fixedly connected to a movable plate (231), and the movable plate (231) is slidably connected between two opposite inner side walls of the frame (100), and the two sliding plates (240) are rotatably connected to supporting arms (242) at opposite ends, and the two supporting arms (242) are rotatably connected to two ends of the movable plate (231), respectively.

2. According to claim 1, a high-frequency straight seam welded pipe unit straight sheet type weld guide mechanism is characterized in that: Bottom plates (110) are fixedly connected to both sides of the bottom surface of the frame (100).

3. The straight sheet type weld guide mechanism of the high frequency straight seam welded pipe unit according to claim 1 is characterized in that: The two opposite inner side walls of the frame (100) are fixedly connected with U-shaped brackets (120), and the two slide plates (240) are respectively slidably sleeved between the two arms of the two U-shaped brackets (120).

4. The straight sheet type weld guide mechanism of the high frequency straight seam welded pipe unit according to claim 3 is characterized in that: The pressing mechanism (400) comprises a sleeve frame (410), wherein the inner side wall of the sleeve frame (410) is slidably sleeved with the outer side wall of the frame body (100), a T-shaped plate (420) is fixedly connected between two opposite inner side walls of the sleeve frame (410), the bottom end of the T-shaped plate (420) is located below the sleeve frame (410), and the T-shaped plate (420) is matched with a first pressing plate (430), and the top surface of the first pressing plate (430) is fixedly connected with a clamping strip (430). 1), an embedding groove (421) is provided on the bottom surface of the T-shaped plate (420), and a clamping strip (431) is slidably clamped in the embedding groove (421), a support plate is fixedly connected to both the top and bottom ends of one side of the frame (100), and a screw (300) is rotatably connected between the two support plates, and an internal threaded tube (411) is fixedly connected to one end of the sleeve frame (410), and the inner side wall of the internal threaded tube (411) is screwed together with the outer side wall of the screw (300).

5. The straight sheet type weld guide mechanism of the high frequency straight seam welded pipe unit according to claim 4 is characterized in that: A fixing plate (450) is fixedly connected between two opposite inner side walls of the sleeve frame (410), and the fixing plate (450) is located above the T-shaped plate (420). An electric push rod (451) is fixedly connected to the top surface of the fixing plate (450), and the movable end of the electric push rod (451) passes through the fixing plate (450) and is fixedly connected to a U-shaped frame (452). One end of each arm of the U-shaped frame (452) is fixedly connected to a plate body (470), and a card slot (471) is provided on the bottom surface of the two plate bodies (470). The two plate bodies (470) are matched with a second A pressure plate (440), and the second pressure plate (440) is located below the first pressure plate (430), the top surface of the second pressure plate (440) is fixedly connected with a drawstring (441), the top of the drawstring (441) is fixedly connected with two clamping rods (442), and the two clamping rods (442) are respectively movably clamped in two clamping grooves (471), the top surface of the clamping strip (431) is provided with a through groove (432), and the top surface of the T-shaped plate (420) is provided with a connecting hole (422), and the drawstring (441) is located in the connecting hole (422) and the through groove (432).

6. The straight sheet type weld seam guide mechanism of the high frequency straight seam welded pipe unit according to claim 5, characterized in that: Both ends of the T-shaped plate (420) are fixedly connected to guide plates, and an insertion rod (460) is provided below the two guide plates. A rebound spring (461) is fixedly connected between the top ends of the two insertion rods (460) and the adjacent guide plates. Two clamping holes (433) are provided on the top surface of the clamping strip (431), and the two insertion rods (460) are movably inserted into the two clamping holes (433) respectively.

7. The straight sheet type weld guide mechanism of the high frequency straight seam welded pipe unit according to claim 6, characterized in that: Both ends of the T-shaped plate (420) are fixedly connected with sleeves (423), and the outer side walls of the two insertion rods (460) are respectively slidably sleeved inside the two sleeves (423).

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