Internal rotation type pipeline beveling machine

Abstract

The invention relates to the technical field of beveling machines, in particular to an internal rotation type pipeline beveling machine which comprises a base and a rotating seat, the rotating seat is rotatably connected to the base, a convex shaft is fixedly welded to the center of one side wall of the rotating seat, a beveling mechanism is arranged on the outer wall of the convex shaft, and an internal rotation positioning mechanism is arranged at one end, in the length direction, of the convex shaft. According to the internal rotation type pipeline beveling machine, the cutter base used for fixing the cutter is arranged and rotationally connected into the concave base through the rotating shaft, in the using process, the cutter base can be driven to rotate through the rotating shaft by controlling the electric push rod to stretch out and draw back, then the angle of the cutter is changed, bevels with different inclination angles are cut, and the practicability is high. And real-time adjustment in the machining process is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of beveling machines, in particular to an internal rotating pipe beveling machine. Background Art

[0002] As is known, the groove is mainly used for welding workpieces to ensure the welding degree. Under normal circumstances, the profile is processed by machining methods. When the requirements are not high, it can also be gas cut (if it is a type of weld that requires ultrasonic flaw detection, only machining methods can be used), but the oxide slag needs to be removed. According to the needs, there are X-shaped grooves, V-shaped grooves, U-shaped grooves, etc., but most of them require retaining a certain blunt edge.

[0003] Publication (announcement) number: CN102962521B, Publication (announcement) date: 2016-03-02 A pipe beveling machine is disclosed, comprising: a supporting spindle, a spindle sleeve is provided on the supporting spindle, the spindle sleeve is movably connected to the supporting spindle through a bearing, a transmission gear and a cutter disc are provided on the spindle sleeve, a hydraulic cutting feed device and a hydraulic expansion device are respectively provided at both ends of the supporting spindle, the driving device is meshed with the transmission gear through a power output gear; and a casing, the driving device is fixed on the casing, and the casing is movably connected to the spindle sleeve through a casing supporting main bearing. The present invention utilizes the hydraulic expansion device and the hydraulic cutting feed device to achieve the fixation of the beveling machine and the pipeline and the feed and retraction of the cutter disc.

[0004] Similar to the above application, most of the existing pipe processing beveling machines need to be fixed on the pipe and then bevel the pipe. The beveling machine generally uses a hydraulic expansion device to achieve the fixation between the beveling machine and the pipe. This fixing method requires that after each pipe is processed, the beveling machine needs to be disassembled from the original pipe and then fixed on the pipe to be processed. The pipe to be processed must first be fixed on the corresponding fixture to fix the pipe, resulting in low processing efficiency. In addition, the beveling machine is directly fixed to the outer wall of the pipe by a hydraulic device, and its fixed stability is guaranteed on the basis of the pipe being immutable, and it is difficult to control the pressure well. Summary of the invention

[0005] In order to solve the above problems, the present invention provides an internal rotating pipe beveling machine.

[0006] The present invention adopts the following technical scheme: an internal rotation pipe beveling machine, comprising a base and a rotating base, the rotating base is rotatably connected to the base, a convex shaft is welded and fixed at the center of one side wall of the rotating base, a beveling mechanism is arranged on the outer wall of the convex shaft, and an internal rotation positioning mechanism is arranged at one end of the convex shaft along the length direction; The groove mechanism comprises a strip seat and a concave seat welded and fixed on the outer wall of the convex shaft, a cutter seat is connected to the concave seat through a rotating shaft, a cutter is fixed to the groove on the lower surface of the cutter seat through bolts, a first U-shaped seat and a second U-shaped seat are respectively fixed to the strip seat and the cutter seat, and an electric push rod is rotatably connected between the first U-shaped seat and the second U-shaped seat; The inner rotation positioning mechanism includes a fixed tube and a screw, a plurality of strip grooves are formed on the outer wall of the fixed tube, an expansion positioning seat is inserted in the strip groove, the screw is rotatably connected to the through hole formed on the convex shaft, one end of the screw extends into the fixed tube, a screw nut seat is threadedly connected to the outer wall of the screw, and a connecting rod is rotatably connected between the screw nut seat and the expansion positioning seat, a circular groove which is mutually conductive with the through hole is formed on the side wall of the convex shaft, a fixed block is embedded and fixed in the circular groove, a rotating rod is rotatably connected to the fixed block, one end of the rotating rod extends into the through hole and is fixed with a second bevel gear, a first bevel gear is welded on the screw, and the first bevel gear and the second bevel gear are gear-meshingly connected.

[0007] As a further description of the above technical solution: a cylindrical groove is opened on one side wall of the base, a bearing is embedded and fixed in the cylindrical groove, and the rotating seat is embedded and fixed in the bearing.

[0008] As a further description of the above technical solution: a strip-shaped fixing hole is provided on the base, and a driving mechanism is also provided on the base, and the driving mechanism is used to drive the rotating seat to rotate.

[0009] As a further description of the above technical solution: the driving mechanism includes a motor seat and a driving motor, the driving motor is bolted to the motor seat, the motor seat is welded to the outer wall of the base, a driving gear is fixed to the output shaft of the driving motor, a ring gear is welded to the outer wall of the rotating seat, and the driving gear is meshed with the ring gear.

[0010] As a further description of the above technical solution: there are four expansion positioning seats in total, and the four expansion positioning seats are distributed in a ring shape, and there is an angle of ninety degrees between two adjacent expansion positioning seats.

[0011] As a further description of the above technical solution: a plurality of arc-shaped grooves are formed on the upper surface of the expansion positioning seat at equal intervals along the length direction, and rollers are rotatably connected to the plurality of arc-shaped grooves via rotating shafts.

[0012] As a further description of the above technical solution: the other end of the rotating rod extends to the outside of the convex shaft and is welded with a handle, and a limiting nut is threadedly connected on the rotating rod between the fixed block and the handle.

[0013] In the above technical scheme, the internal rotation type pipe beveling machine provided by the present invention is provided with a base and a rotating seat, and the base bolts are fixed to the bottom plate of the fixed pipe clamp. When in use, the pipe is fixed to the pipe clamp so that one end of the pipe is sleeved on the outside of the internal rotation positioning mechanism. At this time, the pipe can be beveled by the beveling mechanism provided on the convex shaft. With such a structural design, on the one hand, the beveling mechanism does not need to be fixed on the pipe. When the pipe is beveled, the pipe can be directly and quickly assembled on the pipe clamp to perform beveling processing, thereby greatly improving the processing efficiency of the pipe. In addition, an internal rotation positioning mechanism is provided on the convex shaft. On the one hand, the pipe can be auxiliary positioned by the internal rotation positioning mechanism so that it is on the same axis as the convex shaft, thereby improving the accuracy of pipe fixing. In addition, the pipe is auxiliary supported by the internal rotation positioning mechanism, thereby improving the strength of the pipe and preventing the pipe from being deformed and damaged during processing. Furthermore, the cutter seat for fixing the cutter is rotatably connected in the concave seat via a rotating shaft. During use, the cutter seat can be driven to rotate via the rotating shaft by controlling the extension and retraction of the electric push rod, thereby changing the angle of the cutter, thereby achieving cutting of bevels with different inclination angles, and realizing real-time adjustment during the processing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments: Figure 1 A schematic diagram of the structure of an internal rotating pipe beveling machine provided in an embodiment of the present invention; Figure 2 A schematic diagram of the disassembled structure of the internal rotating pipe beveling machine provided in an embodiment of the present invention; Figure 3 A fixed tube provided by an embodiment of the present invention; Figure 4 A cross-sectional view of a fixed tube and a convex shaft provided in an embodiment of the present invention; Figure 5 A schematic diagram of the connection structure between the lead screw and the expansion positioning seat provided in an embodiment of the present invention; Figure 6 A schematic diagram of the structure of a groove mechanism provided in an embodiment of the present invention; Figure 7 A schematic structural diagram of an expansion positioning seat provided in an embodiment of the present invention.

[0015] In the figure: 1, base; 11, cylindrical groove; 12, bearing; 13, strip fixing hole; 2, driving mechanism; 21, motor seat; 22, driving motor; 23, driving gear; 24, gear ring; 3, rotating seat; 4, convex shaft; 5, groove mechanism; 51, strip seat; 52, first U-shaped seat; 53, concave seat; 54, cutter seat; 55, second U-shaped seat; 56, electric push rod; 57, cutter; 6, inner rotation positioning mechanism; 61, fixed tube; 62, expansion positioning seat; 621, arc groove; 622, roller; 63, strip groove; 64, lead screw; 65, lead screw nut seat; 66, connecting rod; 67, first bevel gear; 68, circular groove; 69, fixed block; 610, rotating rod; 611, second bevel gear; 612, limit nut; 613, handle. DETAILED DESCRIPTION

[0016] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below with reference to specific diagrams. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0017] See also Figure 1-Figure 7 The embodiment of the present invention provides a technical solution: an internal rotation pipe beveling machine, comprising a base 1 and a rotating base 3, the rotating base 3 is rotatably connected to the base 1, a convex shaft 4 is welded and fixed at the center of one side wall of the rotating base 3, a beveling mechanism 5 is arranged on the outer wall of the convex shaft 4, and an internal rotation positioning mechanism 6 is arranged at one end of the convex shaft 4 along the length direction; The internal rotation positioning mechanism 6 includes a fixed tube 61 and a lead screw 64. The fixed tube 61 is welded and fixed to one end of the convex shaft 4. A plurality of strip grooves 63 are formed on the outer wall of the fixed tube 61. An expansion positioning seat 62 is inserted into the strip groove 63. The lead screw 64 is rotatably connected to the through hole formed on the convex shaft 4 (refer to Figure 6The through hole is provided at the axis center line of the convex shaft), one end of the lead screw 64 extends into the fixed tube 61, a lead screw nut seat 65 is threadedly connected to the outer wall of the lead screw 64, and a connecting rod 66 is rotatably connected between the lead screw nut seat 65 and the expansion positioning seat 62, a circular groove 68 is provided on the side wall of the convex shaft 4 and is communicated with the through hole, a fixing block 69 is embedded and fixed in the circular groove 68, a rotating rod 610 is rotatably connected to the fixing block 69, one end of the rotating rod 610 extends into the through hole and is fixed with a second bevel gear 611, and a first bevel gear is welded on the lead screw 64 Wheel 67, the first bevel gear 67 and the second bevel gear 611 are meshedly connected, a plurality of arc grooves 621 are provided at equal intervals on the upper surface of the expansion positioning seat 62 along the length direction, and rollers 622 are rotatably connected in the plurality of arc grooves 621 through a rotating shaft, a strip fixing hole 13 is provided on the base 1, and the strip fixing hole 13 is used for installing and fixing the base 1. When in use, the base 1 is bolted to the bottom plate by matching bolts and the strip fixing holes 13. A driving mechanism 2 is also provided on the base 1, and the driving mechanism 2 is used to drive the rotating seat 3 to rotate.

[0018] Specifically, when the internal rotation pipe beveling machine is used, the base 1 is first used to fix the internal rotation pipe beveling machine at a designated position on the bottom plate of the pipe clamp. When in use, the pipe to be processed is first sleeved on the outer side of the internal rotation positioning mechanism 6. At this time, the lead screw 64 is controlled to rotate, driving the lead screw nut seat 65 to move on the lead screw 64, thereby driving the connecting rod 66 to rotate, so that the roller 622 provided on the expansion positioning seat 62 contacts the inner wall of the pipe. There are four expansion positioning seats 62 in total, and the four expansion positioning seats 62 are distributed in a ring shape, and there is a ninety-degree angle between two adjacent expansion positioning seats 62, so that the pipe is auxiliary positioned and supported by the internal rotation positioning mechanism 6. At this time, the steel pipe is clamped and fixed by the pipe clamp, and then the rotating seat 3 is controlled to rotate by the driving mechanism, and the rotating seat 3 drives the convex shaft 4 to rotate, and the convex shaft 4 drives the beveling mechanism 5 to rotate. During the processing, the pipe is driven by the pipe clamp to slowly approach the beveling mechanism 5 to perform beveling processing on the pipe. When the cam 4 rotates, it will drive the inward rotation positioning mechanism 6 to rotate. When the inward rotation positioning mechanism 6 is inserted into the pipeline, the pipeline and the cam 4 are positioned. At this time, the roller 622 set on the expansion positioning seat 62 contacts the inner wall of the pipeline, thereby reducing the contact friction between the expansion positioning seat 62 and the inner wall of the pipeline, and improving the rotation stability of the inward rotation positioning mechanism 6.

[0019] In another embodiment provided by the present invention, a cylindrical groove 11 is opened on one side wall of the base 1 , a bearing 12 is embedded and fixed in the cylindrical groove 11 , and the rotating seat 3 is embedded and fixed in the bearing 12 .

[0020] Specifically, the rotating seat 3 is connected to the base 1 through the bearing 12, so that the rotating seat 3 is rotatably connected to the base 1, and the cooperating shortcoming mechanism 2 can drive the rotating seat 3 to rotate.

[0021] In another embodiment provided by the present invention, the driving mechanism 2 includes a motor base 21 and a driving motor 22, the driving motor 22 is bolted to the motor base 21, the motor base 21 is welded and fixed to the outer wall of the base 1, a driving gear 23 is fixed to the output shaft of the driving motor 22, a gear ring 24 is welded to the outer wall of the rotating base 3, and the driving gear 23 is meshed with the gear ring 24.

[0022] Specifically, the working mode of the driving mechanism 2 is to turn on the driving motor 22, and the driving motor 22 drives the driving gear 23 to rotate, and the driving gear 23 drives the rotating seat 3 to rotate through the ring gear 24, and the cam shaft 4 is driven to rotate through the rotating seat 3, thereby driving the groove mechanism 5 set on the cam shaft 4 to rotate, and perform groove processing on the pipeline.

[0023] In another embodiment provided by the present invention, the groove mechanism 5 includes a strip seat 51 and a concave seat 53 welded and fixed on the outer wall of the convex shaft 4, and the concave seat 53 is connected to a cutter seat 54 through a rotating shaft, and a cutter 57 is fixed to the groove on the lower surface of the cutter seat 54 by bolts. The strip seat 51 and the cutter seat 54 are respectively bolted with a first U-shaped seat 52 and a second U-shaped seat 55, and an electric push rod 56 is rotatably connected between the first U-shaped seat 52 and the second U-shaped seat 55.

[0024] Specifically, when the beveling mechanism 5 is in use, first the cutter seat 54 is rotated to be connected to the concave seat 53 through the rotating shaft. When in use, the electric push rod 56 is controlled to extend and retract, which can drive the cutter seat 54 along the rotating shaft to adjust the angle, so that the angle of the cutter seat 54 is adjustable, and the cutter 57 is bolted to the cutter seat 54, so that the angle of the cutter 57 is adjustable, which is convenient for cutting bevels of different angles.

[0025] In another embodiment of the present invention, the other end of the rotating rod 610 extends to the outside of the convex shaft 4 and is welded with a handle 613 , and a limiting nut 612 is threadedly connected to the rotating rod 610 between the fixing block 69 and the handle 613 .

[0026] Specifically, on the basis of the above-mentioned embodiment, the method for controlling the rotation of the lead screw 64 is to rotate the rotating rod 610 through the handle 613, the rotating rod 610 drives the second bevel gear 611 to rotate, the second bevel gear 611 drives the first bevel gear 67 to rotate, and the first bevel gear 67 drives the lead screw 64 to rotate. By driving the handle 613 to rotate the rotating rod 610 forward and reversely, the lead screw 64 can be driven forward and reversely, and when it is necessary to position the rotating rod 610 and limit its rotation, the limit nut 612 threadedly connected on the rotating rod 610 can be tightened at this time.

[0027] The basic principles, main features and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and the description in the specification are only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An internal rotating pipe beveling machine, comprising a base (1) and a rotating base (3), characterized in that: The rotating seat (3) is rotatably connected to the base (1); a convex shaft (4) is welded and fixed at the center of one side wall of the rotating seat (3); a groove mechanism (5) is provided on the outer wall of the convex shaft (4); and an inner rotation positioning mechanism (6) is provided at one end of the convex shaft (4) along the length direction; The groove mechanism (5) comprises a strip seat (51) and a concave seat (53) which are welded and fixed on the outer wall of the convex shaft (4); a cutter seat (54) is connected to the concave seat (53) via a rotating shaft; a cutter (57) is fixed to a groove on the lower surface of the cutter seat (54) via bolts; a first U-shaped seat (52) and a second U-shaped seat (55) are respectively fixed to the strip seat (51) and the cutter seat (54) via bolts; an electric push rod (56) is rotatably connected between the first U-shaped seat (52) and the second U-shaped seat (55); The inner rotation positioning mechanism (6) comprises a fixed tube (61) and a lead screw (64). The outer wall of the fixed tube (61) is provided with a plurality of strip grooves (63). An expansion positioning seat (62) is inserted into the strip groove (63). The lead screw (64) is rotatably connected to a through hole provided on the convex shaft (4). One end of the lead screw (64) extends into the fixed tube (61). A lead screw nut seat (65) is threadedly connected to the outer wall of the lead screw (64). The lead screw nut seat (65) is connected to the expansion positioning seat (62). ) are rotatably connected with a connecting rod (66), a circular groove (68) which is in communication with the through hole is formed on the side wall of the convex shaft (4), a fixing block (69) is embedded and fixed in the circular groove (68), a rotating rod (610) is rotatably connected to the fixing block (69), one end of the rotating rod (610) extends into the through hole and is fixed with a second bevel gear (611), a first bevel gear (67) is welded to the lead screw (64), and the first bevel gear (67) and the second bevel gear (611) are meshingly connected; The other end of the rotating rod (610) extends to the outside of the convex shaft (4) and is welded with a handle (613). A limit nut (612) is threadedly connected between the fixing block (69) and the handle (613) on the rotating rod (610).

2. The internal rotation pipe beveling machine according to claim 1, characterized in that: A cylindrical groove (11) is provided on one side wall of the base (1), a bearing (12) is embedded and fixed in the cylindrical groove (11), and the rotating seat (3) is embedded and fixed in the bearing (12).

3. The internal rotation pipe beveling machine according to claim 1, characterized in that: The base (1) is provided with a strip-shaped fixing hole (13), and the base (1) is also provided with a driving mechanism (2), wherein the driving mechanism (2) is used to drive the rotating base (3) to rotate.

4. The internal rotation pipe beveling machine according to claim 3, characterized in that: The driving mechanism (2) comprises a motor seat (21) and a driving motor (22); the driving motor (22) is bolted to the motor seat (21); the motor seat (21) is welded to the outer wall of the base (1); a driving gear (23) is fixed to the output shaft of the driving motor (22); a gear ring (24) is welded to the outer wall of the rotating seat (3); the driving gear (23) and the gear ring (24) are meshedly connected.

5. The internal rotation pipe beveling machine according to claim 1, characterized in that: A total of four expansion positioning seats (62) are provided, and the four expansion positioning seats (62) are distributed in a ring shape, with an angle of ninety degrees between two adjacent expansion positioning seats (62).

6. The internal rotation pipe beveling machine according to claim 6, characterized in that: The upper surface of the expansion positioning seat (62) is provided with a plurality of arc-shaped grooves (621) at equal intervals along the length direction, and rollers (622) are rotatably connected to the plurality of arc-shaped grooves (621) via rotating shafts.

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