Pipe flange welding device

Abstract

The utility model relates to the technical field of pipe flange welding, in particular to a pipe flange welding device which is characterized in that one end of the center line of the upper side of a welding table is fixedly connected with a vertically-arranged L-shaped frame, and the end, away from the welding table, of the L-shaped frame is fixedly connected with a vertically-arranged first electric telescopic rod; a laser welding head is fixedly connected to the lower end of the first electric telescopic rod, two vertically-arranged fixing plates are fixedly connected to the upper side of the welding table, and the two fixing plates are symmetrically located on the two sides of the laser welding head correspondingly. The distance adjusting mechanism is arranged to drive the two inner abutting plates to move, abutting positioning and firm fixing of a pipe head and a flange are achieved respectively, the machining accuracy is improved, the two rotation adjusting mechanisms are arranged to drive the pipe head and the flange to rotate synchronously respectively, comprehensive welding of a welding ring opening is carried out, and the device is high in automation degree, high in machining precision and high in machining efficiency. Machining efficiency is high, manpower is saved, and labor cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipe flange welding technical field, specifically a kind of pipe flange welding device. BACKGROUND

[0002] Flange connection is to fix two pipes, pipe fittings or equipment on a flange plate respectively, then add flange pad between two flange plates, and finally use bolts to tighten two flange plates to make them tightly combined, which is a detachable joint that can realize the connection between static pipe and rotating or reciprocating equipment. Pipe flange is widely used in electronic, petroleum, chemical, natural gas and other industries, which includes a circular pipe in the middle and end flanges welded on both ends of the circular pipe.

[0003] However, the traditional method for pipe flange welding is manual welding by holding welding gun manually, which cannot meet the precision requirement, cannot meet the user demand, has low automation degree, wastes manpower, has low processing efficiency, has high energy consumption and high processing cost. Therefore, the technical personnel in the field provide a pipe flange welding device to solve the problems in the above background technology. SUMMARY

[0004] The utility model aims at providing a pipe flange welding device to solve the problems in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a pipe flange welding device, comprising a welding table, a vertical L-shaped bracket is fixedly connected to one end of the upper center line of the welding table, a first electric telescopic rod is fixedly connected to the end of the L-shaped bracket away from the welding table, a laser welding head is fixedly connected to the lower end of the first electric telescopic rod, two vertical fixed plates are fixedly connected to the upper side of the welding table, and the two fixed plates are symmetrically arranged on both sides of the laser welding head, two second electric telescopic rods are fixedly connected to the sides away from the two fixed plates, one end of the second electric telescopic rod penetrates through the fixed plate and is fixedly connected with a machine case, a rotary adjusting mechanism is arranged in the machine case, one end of the rotary adjusting mechanism penetrates through the machine case and extends outward and is fixedly connected with a vertical clamp seat, the clamp seat is a hollow structure, a spacing adjusting mechanism is arranged in the clamp seat, and both ends of the spacing adjusting mechanism penetrate and extend to the outside of the clamp seat and are fixedly connected with two symmetrically arranged inner abutting plates respectively.

[0006] The spacing adjusting mechanism comprises a stepping motor fixed at one end of the clamp seat, a first driving shaft vertically arranged is fixedly connected to the driving end of the stepping motor, one end of the first driving shaft extends through the clamp seat and is fixedly connected with a bidirectional threaded rod, two symmetrically arranged nut blocks are threadedly connected to the bidirectional threaded rod respectively, and a moving rod is fixedly connected to one side of each of the two nut blocks, and a sliding opening is formed in one side of the clamp seat, and the two moving rods extend through the sliding opening and are fixedly connected with two inner abutting plates respectively.

[0007] As a further scheme of the utility model: the rotating adjusting mechanism comprises a servo motor fixed on the upper side of the case, a second driving shaft vertically arranged is fixedly connected to the driving end of the servo motor, one end of the second driving shaft extends through the case and is fixedly connected with a worm, a transversely arranged rotating rod is rotatably connected to the inner wall of one side of the case through a first bearing seat, and a worm wheel engaged with the worm is fixedly connected to the rotating rod, and the rotating rod extends through the case and is fixedly connected with the clamp seat.

[0008] As a further scheme of the utility model: a through hole is formed in one side of the case, and the rotating rod extends through the through hole, and the inner wall of the through hole is rotatably connected with the outer side wall of the rotating rod through a bearing piece.

[0009] As a further scheme of the utility model: the inner wall of one end of the clamp seat is rotatably connected with the end of the bidirectional threaded rod away from the first driving shaft through a second bearing seat.

[0010] As a further scheme of the utility model: one side of each of the two nut blocks is abuttingly and slidably connected with the inner wall of the clamp seat.

[0011] As a further scheme of the utility model: the L-shaped frame is fixedly connected with a control panel on one side, and one end of the first electric telescopic rod, the laser welding head, the second electric telescopic rod, the rotating adjusting mechanism and the spacing adjusting mechanism is electrically connected with the control panel respectively.

[0012] As a further scheme of the utility model: the two inner abutting plates are both semi-cylindrical.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1、Through the setting of two spacing adjusting mechanisms, two stepping motors are started to work respectively, the first driving shaft is driven to rotate, and the bidirectional threaded rod is driven to rotate, and since the axial rotation of the nut block follows the restriction of the sliding opening by the moving rod, the two nut blocks are forced to displace in opposite directions, thereby driving the two inner abutting plates to displace in opposite directions, until the two groups of inner abutting plates are abuttingly connected with the inner walls of the through holes of the pipe head and the flange respectively to realize positioning, which is firm and improves the machining accuracy.

[0015] 2. By setting two rotating adjusting mechanisms, starting two servo motors to rotate synchronously, driving the second driving shaft to rotate, and further driving the worm to rotate, since the worm is engaged with the worm gear, further driving the rotating rod to rotate, so as to realize the synchronous rotation of the pipe head and the flange, and the overall welding of the welding ring, the device has high automation degree, fast processing efficiency, saves manpower and reduces labor cost. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of a pipe flange welding device;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of a pipe flange welding device;

[0018] Figure 3 It is a front view sectional structural schematic diagram of a pipe flange welding device. Figure 2

[0019] In the figure: 1, welding table; 2, L-shaped frame; 3, first electric telescopic rod; 4, laser welding head; 5, fixed plate; 6, second electric telescopic rod; 7, machine box; 8, clamp seat; 9, inner abutting plate; 10, stepping motor; 11, first driving shaft; 12, bidirectional threaded rod; 13, nut block; 14, moving rod; 15, sliding port; 16, servo motor; 17, second driving shaft; 18, worm; 19, rotating rod; 20, worm gear; 21, control panel. DETAILED DESCRIPTION

[0020] Please refer to Figures 1 to 3 ​The utility model discloses an embodiment of a kind of pipe flange welding device, including welding table 1, the upper side centerline one end of welding table 1 is fixedly connected with the vertically arranged L-shaped frame 2, and the end of L-shaped frame 2 away from welding table 1 is fixedly connected with the vertically arranged first electric telescopic rod 3, the lower end of first electric telescopic rod 3 is fixedly connected with laser welding head 4, start first electric telescopic rod 3 work elongation, push laser welding head 4 and move down and welding place and resist tight, start laser welding head 4 and carry out welding, the upper side of welding table 1 is fixedly connected with two vertically arranged fixed plates 5, and two fixed plates 5 are respectively located the both sides of laser welding head 4 and symmetrically set, the side of two fixed plates 5 apart from each other is fixedly connected with two transversely symmetrically arranged second electric telescopic rods 6, start two second electric telescopic rods 6 work elongation, respectively push the welding ring mouth of pipe head and flange and resist tight, and one end of second electric telescopic rod 6 penetrates fixed plate 5 and is fixedly connected with machine case 7, rotating adjusting mechanism is equipped in machine case 7, and one end of rotating adjusting mechanism penetrates machine case 7 and extends outward and is fixedly connected with the vertically arranged clamp holder 8 of setting, clamp holder 8 is hollow structure, spacing adjusting mechanism is equipped in clamp holder 8, and both ends of spacing adjusting mechanism are all penetrated and extended to the outside of clamp holder 8 and are respectively fixedly connected with two symmetrically arranged inner resist tight plates 9, and the device is high in degree of automation, processing efficiency is fast, saves manpower, reduces artificial cost;

[0021] Spacing adjusting mechanism includes the step motor 10 fixed in one end of clamp holder 8, the drive end of step motor 10 is fixedly connected with the vertically arranged first drive shaft 11, and one end of first drive shaft 11 penetrates and extends into clamp holder 8 and is fixedly connected with the two-way threaded rod 12, two-way threaded rod 12 is respectively screw-connected with two symmetrically arranged nut blocks 13, and one side of two nut blocks 13 is fixedly connected with moving rod 14, the one side of clamp holder 8 is provided with sliding port 15, two moving rods 14 are all penetrated sliding port 15 and are respectively fixedly connected with two inner resist tight plates 9, start step motor 10 and work, drive first drive shaft 11 to rotate, in turn drive two-way threaded rod 12 to rotate, because two-way threaded rod 12 is respectively screw-connected with two nut blocks 13, and the axial rotation of nut block 13 follows moving rod 14 and is restricted by sliding port 15, therefore two nut blocks 13 forcibly displace to opposite direction, to drive two inner resist tight plates 9 to displace to opposite direction, until two groups of inner resist tight plates 9 are respectively with the inner wall of the through-hole of pipe head and flange and resist tight and realize positioning, firm, improve processing accuracy;

[0022] In Figure 3The rotating adjusting mechanism comprises a servo motor 16 fixed on the upper side of the case 7, a second driving shaft 17 vertically arranged and fixedly connected to the driving end of the servo motor 16, and a worm 18 fixedly connected to one end of the second driving shaft 17 extending into the case 7, a rotating rod 19 transversely arranged and rotatably connected to the inner wall of one side of the case 7 through a first bearing seat, and a worm wheel 20 fixedly connected to the rotating rod 19 and engaged with the worm 18, the rotating rod 19 extending through the case 7 and being fixedly connected with the clamp seat 8, the servo motor 16 is started to rotate synchronously, driving the second driving shaft 17 to rotate, and then driving the worm 18 to rotate, since the worm 18 is engaged with the worm wheel 20, the rotating rod 19 is driven to rotate, thereby realizing synchronous rotation of the pipe head and the flange;

[0023] In Figure 3 , the case 7 is provided with a through hole on one side, and the rotating rod 19 extends through the through hole, the inner wall of the through hole is rotatably connected with the outer side wall of the rotating rod 19 through a bearing, facilitating rotation of the rotating rod 19;

[0024] In Figure 3 , the inner wall of one end of the clamp seat 8 is rotatably connected with the end of the bidirectional threaded rod 12 away from the first driving shaft 11 through a second bearing seat, supporting and stabilizing rotation of the bidirectional threaded rod 12;

[0025] In Figure 3 , the inner wall of the clamp seat 8 is abuttingly and slidingly connected with one side of each of the two nut blocks 13, limiting axial rotation of the nut blocks 13;

[0026] In Figure 1 , the L-shaped frame 2 is fixedly connected with a control panel 21 on one side, and the first electric telescopic rod 3, the laser welding head 4, the second electric telescopic rod 6, the rotating adjusting mechanism and the distance adjusting mechanism are electrically connected with the control panel 21 on one end, and an external power supply is connected, which is convenient to operate and is prior art;

[0027] In Figure 2 , the two inner abutting plates 9 are semi-cylindrical in shape, which is convenient to abut and abut against the inner wall of the circular hole, and the pipe head and the flange are fixed more firmly.

[0028] The working principle of the utility model is: when using the device to weld pipe flange, first, the through hole of pipe head and flange is respectively sleeved on two groups of inner abutting plates 9, then, two stepping motors 10 are respectively started to work, drive the first drive shaft 11 to rotate, further drive the bidirectional screw rod 12 to rotate, because the bidirectional screw rod 12 is respectively screwed with two nut blocks 13, and the axial rotation of nut block 13 is limited by the movement of sliding hole 15, so two nut blocks 13 are forced to move in opposite directions, thereby driving two inner abutting plates 9 to move in opposite directions, until two groups of inner abutting plates 9 are respectively abutted and positioned with the inner wall of the through hole of pipe head and flange, fixed firmly, improve the machining accuracy;

[0029] Then, two second electric telescopic rods 6 are started to work and elongate, respectively push the welding ring of pipe head and flange to abut, then, the first electric telescopic rod 3 is started to work and elongate, push the laser welding head 4 to move down and abut with the welding position, start the laser welding head 4 to weld, at the same time, two servo motors 16 are started to rotate synchronously, drive the second drive shaft 17 to rotate, further drive the worm 18 to rotate, because the worm 18 is engaged with the worm wheel 20, further drive the rotating rod 19 to rotate, so as to realize the synchronous rotation of pipe head and flange, and the comprehensive welding of welding ring, the device has high automation degree, fast machining efficiency, saves manpower and reduces labor cost.

[0030] The above is only the preferred embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A pipe flange welding device comprising a welding station (1), characterized in that, The upper side center line of the welding table (1) is fixedly connected with an L-shaped frame (2) arranged vertically, and the end of the L-shaped frame (2) away from the welding table (1) is fixedly connected with a first electric telescopic rod (3) arranged vertically, and the lower end of the first electric telescopic rod (3) is fixedly connected with a laser welding head (4), and the upper side of the welding table (1) is fixedly connected with two fixed plates (5) arranged vertically, and the two fixed plates (5) are symmetrically arranged on the two sides of the laser welding head (4) respectively, and the sides away from each other of the two fixed plates (5) are fixedly connected with two second electric telescopic rods (6) arranged transversely and symmetrically, and one end of the second electric telescopic rod (6) penetrates through the fixed plate (5) and is fixedly connected with a machine box (7), and the machine box (7) is provided with a rotary adjusting mechanism, and one end of the rotary adjusting mechanism penetrates through the machine box (7) and extends outward and is fixedly connected with a clamp seat (8) arranged vertically, and the clamp seat (8) is a hollow structure, and the clamp seat (8) is provided with a spacing adjusting mechanism, and the two ends of the spacing adjusting mechanism both penetrate and extend to the outside of the clamp seat (8) and are fixedly connected with two inner abutting plates (9) arranged symmetrically respectively. The spacing adjusting mechanism comprises a stepping motor (10) fixed at one end of the clamp seat (8), and the driving end of the stepping motor (10) is fixedly connected with a first driving shaft (11) arranged vertically, and one end of the first driving shaft (11) penetrates and extends into the clamp seat (8) and is fixedly connected with a bidirectional threaded rod (12), and the bidirectional threaded rod (12) is threadedly connected with two symmetrically arranged nut blocks (13) respectively, and one side of each of the two nut blocks (13) is fixedly connected with a moving rod (14), and one side of the clamp seat (8) is provided with a sliding opening (15), and the two moving rods (14) both penetrate through the sliding opening (15) and are fixedly connected with the two inner abutting plates (9) respectively.

2. A pipe flange welding apparatus according to claim 1, wherein The rotary adjusting mechanism comprises a servo motor (16) fixed on the upper side of the machine box (7), and the driving end of the servo motor (16) is fixedly connected with a second driving shaft (17) arranged vertically, and one end of the second driving shaft (17) penetrates and extends into the machine box (7) and is fixedly connected with a worm (18), and one side of the inner wall of the machine box (7) is rotatably connected with a transversely arranged rotating rod (19) through a first bearing seat, and the rotating rod (19) is fixedly connected with a worm wheel (20) meshingly connected with the worm (18), and the rotating rod (19) penetrates through the machine box (7) and is fixedly connected with the clamp seat (8).

3. A pipe flange welding apparatus according to claim 2, wherein One side of the machine box (7) is provided with a through hole, and the rotating rod (19) penetrates through the through hole, and the inner wall of the through hole is rotatably connected with the outer side wall of the rotating rod (19) through a bearing piece.

4. The tube flange welding apparatus of claim 1, wherein, The inner wall of one end of the clamp seat (8) is rotatably connected with the end of the bidirectional threaded rod (12) away from the first driving shaft (11) through a second bearing seat.

5. The tube flange welding apparatus of claim 1, wherein, One side of each of the two nut blocks (13) is abuttingly and slidingly connected with the inner wall of the clamp seat (8).

6. A pipe flange welding apparatus according to claim 1, wherein One side of the L-shaped frame (2) is fixedly connected with a control panel (21), and one end of the first electric telescopic rod (3), the laser welding head (4), the second electric telescopic rod (6), the rotary adjusting mechanism and the spacing adjusting mechanism is electrically connected with the control panel (21) respectively.

7. The tube flange welding apparatus of claim 1, wherein, The two inner abutting plates (9) are both arranged in a semi-cylindrical shape.

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