Straight weld joint leveling device for circular tube

Abstract

The utility model provides a round pipe linear welding seam leveling device which comprises an outer dull polish motor, a bearing plate and a lifting frame. An outer grinding wheel is mounted on a motor shaft of the outer grinding motor; a moving plate is welded to the lower side face of the bearing plate, a long-strip-shaped through groove is formed in the center of the moving plate, a threaded displacement rod is rotationally connected into the long-strip-shaped through groove of the moving plate, and the front end of the threaded displacement rod is installed on a motor shaft of a displacement motor. A guide rod and a threaded column are welded to the lower side face of the lifting frame, an inner grinding motor is installed on the left side face of the lifting frame, and an inner grinding wheel is installed on a motor shaft of the inner grinding motor. Through the arrangement of the threaded displacement rod, the movable plate, the inner grinding wheel and the outer grinding wheel, synchronous polishing and leveling work of welding seams on the inner surface and the outer surface of the steel pipe is achieved, and the machining efficiency of the welding seams of the cylindrical steel pipe is improved; the problem that welding seams on the inner surface and the outer surface of a steel pipe cannot be synchronously polished in traditional round pipe linear welding seam leveling machining, and consequently the welding seam leveling machining efficiency is low is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of welding seam processing, especially relates to a straight line welding seam flattening device of circular pipe. BACKGROUND

[0002] The straight seam welded pipe is a kind of cylindrical steel pipe made of steel strip by curling into pipe and by high-frequency welding or arc welding.At present, the straight seam welded pipe forms an axial straight line welding seam on the outer surface after welding, and due to the influence of welding process, the surface of the straight line welding seam of the circular pipe is uneven, so the inner and outer surfaces of the circular pipe welding seam need to be polished and flattened by workers after welding to ensure the overall appearance of the straight seam welded pipe, however, in the actual manual grinding machine flattening process of the steel pipe, the inner surface welding seam of the steel pipe also needs to be polished and flattened after the outer surface welding seam of the steel pipe is flattened, so the outer surface welding seam and the inner surface welding seam of the steel pipe cannot be polished simultaneously, which affects the straight line welding seam flattening efficiency of the circular pipe. SUMMARY

[0003] Therefore, the utility model aims at providing a straight line welding seam flattening device of circular pipe to solve the problem of low welding seam flattening efficiency caused by the fact that the traditional straight line welding seam flattening process cannot polish the inner and outer surface welding seams of the steel pipe simultaneously.

[0004] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0005] A straight line welding seam flattening device of circular pipe is applied to a steel pipe, which comprises a bottom plate, a vertical plate welded on the upper side of the bottom plate near the rear end, a support rod welded on the front side of the vertical plate, a portal welded on the upper side of the center of the bottom plate, a hydraulic telescopic rod connected to the upper side of the portal through bolts, a support installed at the bottom end of the hydraulic telescopic rod, an outer grinding motor installed on the left side of the support, an outer grinding wheel installed on the motor shaft of the outer grinding motor, a bearing plate and a lifting frame; the upper side of the bearing plate is connected to a baffle through bolts, the lower side of the bearing plate is welded to a moving plate, a long slot is arranged at the center of the moving plate, a threaded displacement rod is rotatably connected to the long slot of the moving plate, the front end of the threaded displacement rod is installed on the motor shaft of a displacement motor, a slot is arranged at the center of the bearing plate, a bidirectional threaded rod is rotatably connected to the slot, a clamping plate is meshingly connected to the outer side of the bidirectional threaded rod, and a handrail turntable is installed at the right end of the bidirectional threaded rod; the front end of the support rod is welded to a support plate, and the upper side of the support plate is rotatably connected to a rotating sleeve; the lower side of the lifting frame is welded to a guide rod and a threaded column, an inner grinding motor is installed on the left side of the lifting frame, and an inner grinding wheel is installed on the motor shaft of the inner grinding motor.

[0006] Further, the number of the clamping plates is two groups, the clamping plates are symmetrically distributed left and right, the lower side of each group of clamping plates is provided with a protrusion, the protrusions of the clamping plates are embedded in the grooves of the bearing plate, the left side and the right side of the clamping plate are respectively attached to the groove walls of the bearing plate grooves, the protrusions of each group of clamping plates are provided with through holes penetrating left and right, the outer side of the bidirectional threaded rod is connected to the threaded holes of the left clamping plate through the forward threaded end, and the outer side of the bidirectional threaded rod is connected to the threaded holes of the right clamping plate through the reverse threaded end.

[0007] Further, the lower side of the moving plate is provided with a protrusion, the front side of the protrusion is provided with a threaded hole, and the outer side of the threaded displacement rod is connected to the threaded hole of the protrusion of the moving plate.

[0008] Further, the support plate is of an L-shaped structure, the lower side of the support plate is sequentially provided with two groups of through holes from front to back, the rotating sleeve is rotatably connected to the through hole at the back side of the support plate, and the guide rod is inserted into the through hole at the front side of the support plate.

[0009] Further, the rotating sleeve is a cylinder structure penetrating up and down, the inner side of the cylinder structure of the rotating sleeve is provided with threads, and the outer side of the threaded column is connected to the threaded structure of the inner side of the cylinder structure of the rotating sleeve.

[0010] Further, the center of the baffle is provided with a through hole, and the support rod is inserted into the through hole of the baffle.

[0011] Compared with the prior art, the round pipe straight weld leveling device has the following beneficial effects:

[0012] The threaded engagement transmission mechanism composed of the threaded displacement rod and the protrusion of the moving plate driven by the displacement motor operates, the moving plate drives the bearing plate to move directionally along the long through groove of the bottom plate, the inner sand wheel and the outer sand wheel move the straight welds on the inner and outer surfaces of the steel pipe placed in the bearing plate to perform movable polishing work, synchronous polishing and leveling work of the inner and outer surfaces of the steel pipe are realized, the traditional manual independent polishing mode of the inner and outer welds of the steel pipe is replaced, and the processing efficiency of the cylindrical steel pipe weld is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] The drawings that form a part of this application provide further understanding of the present application, the schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0014] Figure 1 The front view structural schematic diagram of the embodiment of the present application;

[0015] Figure 2 The top view structural schematic diagram of the embodiment of the present application;

[0016] Figure 3 The front view structure schematic diagram of the utility model embodiment is shown in the figure.

[0017] Figure 4 The upside view structure schematic diagram of the utility model embodiment is shown in the figure.

[0018] Figure 5 The front view cross section structure schematic diagram of the utility model embodiment is shown in the figure.

[0019] Figure 6 The cut structure schematic diagram of the utility model embodiment is shown in the figure.

[0020] Figure 7 The structure schematic diagram of the A part of the utility model embodiment is shown in the figure. Figure 6 The structure schematic diagram of the A part of the utility model embodiment is shown in the figure.

[0021] Mark explanation:

[0022] 1-steel pipe;2-gantry;3-bottom plate;4-displacement motor;5-hydraulic telescopic rod;6-supporting rod;7-clamping plate;8-baffle;9-bearing plate;10-outer sand wheel;11-bracket;12-stand plate;13-outer sanding motor;14-inner sanding motor;15-inner sand wheel;16-guide rod;17-lifting frame;18-moving plate;19-thread displacement rod;20-bidirectional thread rod;21-handrail turntable;22-branch plate;23-thread column;24-rotating sleeve. Specific implementation

[0023] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0024] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship based on the figures shown, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0025] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication.For ordinary skilled in the art, the above-mentioned terms can be understood by the specific meaning in the utility model through specific circumstances.

[0026] The utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0027] As Figures 1-7 The utility model provides a round tube straight weld whole flattening device, apply to steel pipe 1, including bottom plate 3, the position of bottom plate 3 upper side near rear end is welded with vertical board 12, the front side of vertical board 12 is welded with support rod 6, the upper side center position of bottom plate 3 is welded with portal frame 2, the upper side of portal frame 2 is connected with hydraulic telescopic rod 5 through bolt, the bottom end of hydraulic telescopic rod 5 installs support 11, support 11 left side surface installs outer ground glass motor 13, and the motor shaft of outer ground glass motor 13 is installed with outer sand wheel 10, still including bearing plate 9 and lifting frame 17, the upper side of bearing plate 9 is connected with baffle 8 through bolt, the lower side of bearing plate 9 is welded with moving plate 18, and the long slot of moving plate 18 center position is equipped with, and the long slot of moving plate 18 is rotatably connected with threaded displacement rod 19, and the front end of threaded displacement rod 19 is installed on the motor shaft of displacement motor 4, and the center position of bearing plate 9 is equipped with slot, and the inside rotation of slot is connected with two-way threaded rod 20, and the outer side of two-way threaded rod 20 is engagedly connected with clamping plate 7, and two-way threaded rod 20 right end is installed with handrail turntable 21, the front end of support rod 6 is welded with support plate 22, and the upper side of support plate 22 is rotatably connected with rotating sleeve 24, the lower side of lifting frame 17 is welded with guide rod 16 and threaded column 23, and lifting frame 17 left side surface installs inner ground glass motor 14, and the motor shaft of inner ground glass motor 14 is installed with inner sand wheel 15.

[0028] In the embodiment of the present disclosure, the number of clamping plates 7 is two groups, and the clamping plates 7 are symmetrically distributed left and right. The lower side of each group of clamping plates 7 is provided with a protrusion. The protrusions of the clamping plates 7 are embedded in the grooves of the bearing plate 9. The left and right sides of the clamping plates 7 are respectively attached to the groove walls of the grooves of the bearing plate 9. The protrusions of each group of clamping plates 7 are provided with left and right through threaded holes. The outer side of the two-way threaded rod 20 is engagedly connected to the threaded holes of the clamping plates 7 on the left side through the forward threaded end. The outer side of the two-way threaded rod 20 is engagedly connected to the threaded holes of the clamping plates 7 on the right side through the reverse threaded end. The two-way threaded rod 20 drives the two groups of clamping plates 7 to move left and right along the long slot of the bearing plate 9. The clamping plates 7 extrude and clamp the outer side of the steel pipe 1, ensuring that the steel pipe 1 is stably placed and avoiding the weld of the steel pipe 1 from rotating and deviating from the outer sand wheel 10 and the inner sand wheel 15.

[0029] In the embodiment of the present disclosure, the lower side of the moving plate 18 is provided with a protrusion, the front side of the protrusion is provided with a threaded hole, the outer side of the threaded displacement rod 19 is threadedly engaged with the threaded hole of the protrusion of the moving plate 18, and the threaded displacement rod 19 drives the moving plate 18 to move forward and backward along the long groove of the bottom plate 3 during rotation, so that the moving plate 18 drives the clamped and placed steel pipe 1 on the bearing plate 9 to move forward and backward synchronously, and the linear welds on the inner and outer surfaces of the steel pipe 1 rub against the outer sand wheel 10 and the inner sand wheel 15, thereby completing the grinding work of the linear welds on the inner and outer surfaces of the steel pipe 1.

[0030] In the embodiment of the present disclosure, the support plate 22 is in an L-shaped structure, the lower side of the support plate 22 is sequentially provided with two groups of through holes from front to back, the rotating sleeve 24 is rotationally connected in the through hole at the back side of the support plate 22, and the guide rod 16 is inserted in the through hole at the front side of the support plate 22, so that the lifting frame 17 welded and connected at the top end of the guide rod 16 moves vertically and stably under the directional support of the through hole at the front side of the support plate 22 and the guide rod 16, thereby preventing the inner sand wheel 15 from rotating and deviating left and right during movement.

[0031] In the embodiment of the present disclosure, the rotating sleeve 24 is a cylinder structure penetrating from top to bottom, the inner side of the cylinder structure of the rotating sleeve 24 is provided with threads, the outer side of the threaded column 23 is threadedly engaged with the thread structure at the inner side of the cylinder structure of the rotating sleeve 24, and the rotating sleeve 24 drives the lifting frame 17 welded and connected at the upper side of the threaded column 23 to move up and down when the rotating sleeve 24 rotates, so that the height position of the inner sand wheel 15 is changed according to the size of the inner diameter of the steel pipe 1, and the outer surface of the inner sand wheel 15 is ensured to contact the linear welds of the steel pipe 1 with different inner diameters.

[0032] In the embodiment of the present disclosure, the baffle 8 is provided with a through hole at the center position, the support rod 6 is inserted in the through hole of the baffle 8, the inner side of the through hole of the baffle 8 slides forward and backward in close contact with the outer side of the baffle 8 and the bearing plate 9 welded and connected at the lower side, and the baffle 8 supports the support rod 6.

[0033] The specific use mode and effect of the embodiment are as follows:

[0034] The utility model discloses a straight weld of steel pipe is flattened to the work, places steel pipe 1 on the upside of bearing plate 9, makes the straight weld of steel pipe 1 inner surface and outer surface distribute between outer grinding wheel 10 and inner grinding wheel 15, then manually rotates handrail turntable 21, and handrail turntable 21 drives two -way threaded rod 20 to rotate, because two -way threaded rod 20 outer side face positive thread end and reverse thread end are engaged in connection in the protruding block threaded through -hole of two sets of clamping plate 7 respectively, and two -way threaded rod 20 drives two sets of clamping plate 7 and moves to the left and right along the through -slot of bearing plate 9, and two sets of clamping plate 7 are positioned and clamped to steel pipe 1, and hydraulic telescopic link 5 drives the outer grinding wheel 10 installed on the motor shaft of outer grinding motor 13 on support 11 upper outside and is attached to the weld outer surface place of steel pipe 1, and manually rotates and drives rotating sleeve 24, and rotating sleeve 24 drives the thread column 23 of the inside surface engagement connection in the cylinder and moves upwards, and thread column 23 drives lifting frame 17 and moves vertically along the through -slot insertion nest structure in the guide rod 16 in the through -hole of support plate 22, and lets lifting frame 17 drive inner grinding wheel 15 and attach to the weld inner surface place of steel pipe 1, then by displacement motor 4 drive screw displacement rod 19 rotates, and screw displacement rod 19 drive the moving plate 18 of outer side surface engagement connection and move back along the through -slot of bottom plate 3, and moving plate 18 then drive the steel pipe 1 of clamping and placing on bearing plate 9 upside and move back synchronously, at this time, inner grinding motor 14 drive inner grinding wheel 15 high -speed rotation, and outer grinding motor 13 drive outer grinding wheel 10 high -speed rotation, and outer grinding wheel 10 and inner grinding wheel 15 polish the straight weld of steel pipe 1 and move back to the work of the flattening of steel pipe straight weld.

[0035] The above only is the preferred embodiment of the utility model, and does not use to limit the utility model, and any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should include in the protection scope of the utility model.

Claims

1. A round tube straight weld seam flattening device applied to a steel pipe (1); comprising a bottom plate (3); a vertical plate (12) is welded on the upper side of the bottom plate (3) near the rear end, a support rod (6) is welded on the front side of the vertical plate (12), a portal frame (2) is welded on the upper side of the center of the bottom plate (3), a hydraulic telescopic rod (5) is connected to the upper side of the portal frame (2) through bolts, a support (11) is installed at the bottom end of the hydraulic telescopic rod (5), an outer grinding motor (13) is installed on the left side of the support (11), and an outer grinding wheel (10) is installed on the motor shaft of the outer grinding motor (13); characterized in that: It also includes a bearing plate (9) and lifting frame (17); the upper side of the bearing plate (9) is connected with the baffle (8) by bolt, the lower side of the bearing plate (9) is welded with the moving plate (18), the moving plate (18) is provided with a long slot in the center position, the long slot of the moving plate (18) is rotatably connected with the threaded displacement rod (19), the front end of the threaded displacement rod (19) is installed on the motor shaft of the displacement motor (4), the center position of the bearing plate (9) is provided with a slot, the inside of the slot is rotatably connected with the two-way threaded rod (20), the outer side of the two-way threaded rod (20) is engaged with the clamping plate (7), the right end of the two-way threaded rod (20) is installed with the handrail turntable (21); the front end of the supporting rod (6) is welded with the supporting plate (22), the upper side of the supporting plate (22) is rotatably connected with the rotating sleeve (24); the lower side of the lifting frame (17) is welded with the guide rod (16) and the threaded column (23), the left side of the lifting frame (17) is installed with the inner grinding motor (14), the motor shaft of the inner grinding motor (14) is installed with the inner grinding wheel (15).

2. The apparatus of claim 1 wherein: The number of the clamping plate (7) is two groups, the clamping plate (7) is symmetrically distributed on the left and right sides, the lower side of each group of clamping plate (7) is provided with a protrusion, the protrusion of the clamping plate (7) is embedded in the groove of the bearing plate (9), the left side and the right side of the clamping plate (7) are respectively attached to the groove wall of the bearing plate (9), the protrusion of each group of clamping plate (7) is provided with a left-right through threaded hole, the outer side of the two-way threaded rod (20) is engaged with the threaded hole of the left clamping plate (7) in the forward threaded end, the outer side of the two-way threaded rod (20) is engaged with the threaded hole of the right clamping plate (7) in the reverse threaded end.

3. The apparatus of claim 1 wherein: The lower side of the moving plate (18) is provided with a protrusion, the front side of the protrusion is provided with a threaded hole, the outer side of the threaded displacement rod (19) is threadedly engaged with the threaded hole of the protrusion of the moving plate (18).

4. The apparatus of claim 1 wherein: The supporting plate (22) is L-shaped structure, the lower side of the supporting plate (22) is provided with two groups of through holes from front to back, the rotating sleeve (24) is rotatably connected in the through hole of the rear side of the supporting plate (22), the guide rod (16) is inserted in the through hole of the front side of the supporting plate (22).

5. The apparatus of claim 1 wherein: The rotating sleeve (24) is a cylinder structure penetrating up and down, the inner side of the cylinder structure of the rotating sleeve (24) is provided with a thread, the outer side of the threaded column (23) is threadedly engaged with the thread structure of the inner side of the cylinder structure of the rotating sleeve (24).

6. The apparatus of claim 1 wherein: The center position of the baffle (8) is provided with a through hole, the supporting rod (6) is inserted in the through hole of the baffle (8).

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