Automatic pipe welding machine

Abstract

The utility model relates to the technical field of pipe welding machines, in particular to an automatic pipe welding machine which comprises a base, and a pipe welding unit is fixedly connected to the top of the base. The top of the base is slidably connected with a limiting seat, and one side of the limiting seat is rotatably connected with a limiting rod; a second clamping ring is slidably connected to the outer wall of the limiting rod. The arc-shaped end of the limiting rod is fixedly connected with a fixing plate, and a clamping base used for limiting the bent pipe body is slidably connected into the fixing plate. According to the pipe bending device, the second clamping ring is slidably connected to the outer portion of the limiting rod, the third motor is started to drive the two clamping plates to be clamped into the straight pipe body, the straight pipe body is rapidly positioned in cooperation with the first clamping ring, and the second clamping ring supports the middle of the bent pipe body and is clamped into the end face of the bent pipe body through the clamping base; therefore, when the bent pipe body and the straight pipe body rotate, butt joint is stable, limiting is rapid, the welding effect is better, the bearing capacity and the size stability of the pipe fitting connecting position are optimized, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe welding machines, in particular to an automatic pipe welding machine. Background Art

[0002] An automatic pipe welding machine is an automated device used for welding steel pipes or pipe fittings. By automatically controlling the welding specifications and maintaining stability, it has a good flux protection effect. Through the setting of a multi-angle welding head unit, the weld metal has high quality, stable performance, and a beautiful outer shape, and is widely used in various industrial fields. The operation content of the automatic pipe welding machine includes welding between various types of straight pipes and bent pipes. In some existing straight pipe and bent pipe welding operations, it is relatively difficult to fix the bent pipe. For example, when welding a quarter-circular pipe and a straight pipe, the arc-shaped pipe is different from the straight pipe. When rotating around the straight pipe as the axis, the center of gravity of the arc-shaped pipe constantly changes, generating stresses in all directions, which may cause large welding deformations and welding residual stresses, affecting the bearing capacity and dimensional stability of the joint and being inconvenient to use. Content of the Utility Model

[0003] The purpose of the utility model is to provide an automatic pipe welding machine to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] An automatic pipe welding machine, characterized by comprising:

[0006] A base, on the top of which a pipe welding unit is fixedly connected;

[0007] A limit seat, slidably connected to the top of the base, with a limit rod rotatably connected to one side of the limit seat, and a second clamping ring slidably connected to the outer wall of the limit rod;

[0008] A fixing plate, fixed to the arc-shaped end of the limit rod, and a clamping seat for limiting the bent pipe body is slidably connected inside the fixing plate;

[0009] A positioning module, arranged on the top of the base, for positioning the bent pipe body;

[0010] A driving module, arranged inside the limit seat, for driving the limit rod to rotate.

[0011] Furthermore, a chute is opened on the top of the base, the limit seat is slidably connected to the chute, two first hydraulic rods are fixedly connected to the inner wall of the chute, the output end of the first hydraulic rod is fixedly connected to the limit seat, an installation plate is rotatably connected inside the limit seat, and the limit rod is fixedly connected to the installation plate.

[0012] Furthermore, the driving module includes:

[0013] Two sliders are slidably connected to one side of the mounting plate, and a clamping plate is fixedly connected to one end of each slider;

[0014] A two-way lead screw two is rotatably connected to the inside of the mounting plate. The two-way lead screw two penetrates through the two sliders, and the adjacent segments of the sliders are threadedly connected to the two-way lead screw two;

[0015] A motor two is fixedly connected to the inside of the mounting plate. The output end of the motor two penetrates through the mounting plate and is fixedly connected to the two-way lead screw two;

[0016] A motor three is fixedly connected to the outer wall of the limit seat. The output end of the motor three penetrates through the limit seat and is fixedly connected to the mounting plate.

[0017] Preferably, a first snap ring is fixedly sleeved on the outer wall of the limit rod. Ball bearings are rotatably connected to the inner walls of the first snap ring and the second snap ring. A clamping rod is slidably connected to the outer wall of the limit rod, and the clamping rod is fixedly connected to the second snap ring.

[0018] Furthermore, a sliding rod is rotatably connected to the outer wall of the clamping rod. A second hydraulic rod is fixedly connected to one side of the mounting plate. A clamping block is fixedly sleeved on the output end of the second hydraulic rod. The sliding rod penetrates through the clamping block and is slidably connected to the clamping block.

[0019] Furthermore, two third hydraulic rods are symmetrically and fixedly connected to one side of the fixing plate. The output ends of the third hydraulic rods are fixedly connected to the clamping seat.

[0020] Furthermore, the positioning module includes:

[0021] A regulating frame is fixedly connected to the top of the base. Two first positioning seats are slidably connected to the inside of the regulating frame. A two-way lead screw one is rotatably connected to the inside of the regulating frame. The two-way lead screw one penetrates through the two first positioning seats. The adjacent segments of the first positioning seats are threadedly connected to the two-way lead screw one. A motor one is fixedly connected to the top of the regulating frame. The output end of the motor one is fixedly connected to the two-way lead screw one;

[0022] A first clamping plate is slidably connected to the outer wall of the regulating frame. A fourth hydraulic rod is fixedly connected to the outer wall of the regulating frame. The output end of the fourth hydraulic rod is fixedly connected to the first clamping plate;

[0023] A vertical plate is fixedly connected to the top of the base. A second clamping plate is slidably connected to one side of the vertical plate. A fifth hydraulic rod is fixedly connected to one side of the vertical plate. The output end of the fifth hydraulic rod is fixedly connected to the second clamping plate;

[0024] Two sixth hydraulic rods are fixedly connected to the top of the base. The tops of the two sixth hydraulic rods are fixedly connected to a second positioning seat.

[0025] Compared with the prior art, the beneficial effects of the present utility model are:

[0026] 1. A snap ring two is slidably connected to the outside of the limit rod. Starting the motor three can drive two clamping plates to be clamped inside the straight pipe body. With the cooperation of the snap ring one, the straight pipe body can be quickly positioned. The snap ring two supports the middle part of the elbow pipe body, and the clamping seat is clamped into the end face of the elbow pipe body, so that the elbow pipe body and the straight pipe body are stably butted, quickly limited during rotation, and the welding effect is better. The bearing capacity and dimensional stability of the pipe fitting connection are optimized, which is convenient for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0028] Figure 2 is a schematic diagram of the side sectional structure of the base of the present utility model;

[0029] Figure 3 is the present utility model Figure 2 partial enlarged structural schematic diagram at A in;

[0030] Figure 4 is a schematic diagram of the limit rod structure of the present utility model;

[0031] Figure 5 is a schematic diagram of the side sectional structure of the control frame of the present utility model.

[0032] In the figure: 10. Base; 11. Slide groove; 111. Hydraulic rod one; 12. Limit seat; 121. Mounting plate; 13. Limit rod; 131. Snap ring one; 132. Snap ring two; 133. Ball; 134. Hydraulic rod two; 135. Clamping block; 136. Slide rod; 137. Clamping rod; 14. Fixed plate; 141. Clamping seat; 142. Hydraulic rod three; 15. Positioning module; 151. Regulation frame; 152. Positioning seat one; 153. Bidirectional lead screw one; 154. Motor one; 155. Clamping plate one; 1551. Hydraulic rod four; 156. Vertical plate; 1561. Clamping plate two; 1562. Hydraulic rod five; 157. Hydraulic rod six; 1571. Positioning seat two; 16. Driving module; 161. Slide block; 1611. Clamping plate; 162. Bidirectional lead screw two; 163. Motor two; 164. Motor three; 20. Welded pipe unit; 30. Elbow pipe body; 31. Straight pipe body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0034] Please refer toFigures 1 to 5 In an embodiment of the present utility model, an automatic pipe welding machine is characterized by comprising: a base 10, on the top of which a pipe welding unit 20 is fixedly connected; a limit seat 12, slidably connected to the top of the base 10, on one side of the limit seat 12, a limit rod 13 is rotatably connected, and a second clamping ring 132 is slidably connected to the outer wall of the limit rod 13; a fixing plate 14, fixed to the arc end of the limit rod 13, and a clamping seat 141 for limiting the bent pipe body 30 is slidably connected inside the fixing plate 14; a positioning module 15, arranged on the top of the base 10 for positioning the bent pipe body 30; and a driving module 16, arranged inside the limit seat 12 for driving the limit rod 13 to rotate.

[0035] Specifically, by slidably connecting a second clamping ring 132 to the outside of the limit rod 13, starting the third motor 164 can drive two clamping plates 1611 to be clamped inside the straight pipe body 31, cooperating with the first clamping ring 131 to quickly position the straight pipe body 31, the second clamping ring 132 supports the middle part of the bent pipe body 30, and the clamping seat 141 is clamped into the end face inside the bent pipe body 30, so that when the bent pipe body 30 and the straight pipe body 31 rotate, the butt joint is stable, the limiting is rapid, the welding effect is better, the bearing capacity and dimensional stability of the pipe fitting connection part are optimized, and it is convenient to use.

[0036] Embodiment 1

[0037] As Figures 1 - 4 shown, in this embodiment, a first clamping ring 131 is fixedly sleeved on the outer wall of the limit rod 13, rolling balls 133 are rotatably connected to the inner walls of the first clamping ring 131 and the second clamping ring 132, a clamping rod 137 is slidably connected to the outer wall of the limit rod 13, the clamping rod 137 is fixedly connected to the second clamping ring 132, a sliding rod 136 is rotatably connected to the outer wall of the clamping rod 137, a second hydraulic rod 134 is fixedly connected to one side of the mounting plate 121, a clamping block 135 is fixedly sleeved on the output end of the second hydraulic rod 134, the sliding rod 136 penetrates through the clamping block 135 and is slidably connected thereto, and two third hydraulic rods 142 are symmetrically fixedly connected to one side of the fixing plate 14, and the output ends of the third hydraulic rods 142 are fixedly connected to the clamping seat 141.

[0038] In this embodiment, the straight pipe body 31 can be assisted in support and limited by the first snap ring 131 cooperating with the second snap ring 132, and the friction during the movement and turning of the second snap ring 132 is reduced by the rolling balls 133, making the movement smoother. The sliding limit of the second snap ring 132 is achieved by the limit of the snap rod 137 by the limit rod 13. When the second hydraulic rod 134 is started, the second hydraulic rod 134 drives the slide rod 136 to move through the fixture block 135, thereby driving the snap rod 137 to move along the track of the limit rod 13. The cooperation of the fixture block 135 and the slide rod 136 can adapt to the change in the lateral position during the movement of the snap rod 137, preventing movement interference and adjusting the position of the second snap ring 132. The second snap ring 132 can assist in supporting the bent pipe body 30. After the fixing plate 14 contacts one end of the bent pipe body 30, starting two third hydraulic rods 142 synchronously can drive the clamping seat 141 to move, thereby clamping the clamping seat 141 into the inside of the bent pipe body 30 to limit the bent pipe body 30.

[0039] As Figures 1 - 3 shown, in this embodiment, a chute 11 is provided at the top of the base 10. The limit seat 12 is slidably connected to the chute 11. Two first hydraulic rods 111 are fixedly connected to an inner wall of the chute 11. The output end of the first hydraulic rod 111 is fixedly connected to the limit seat 12. An installation plate 121 is rotatably connected to the inside of the limit seat 12. The limit rod 13 is fixedly connected to the installation plate 121. The driving module 16 includes: two sliders 161, slidably connected to one side of the installation plate 121. One end of the slider 161 is fixedly connected to a clamping plate 1611; a second bidirectional lead screw 162, rotatably connected to the inside of the installation plate 121. The second bidirectional lead screw 162 passes through the two sliders 161. The adjacent segments of the slider 161 and the second bidirectional lead screw 162 are in screwed connection; a second motor 163, fixedly connected to the inside of the installation plate 121. The output end of the second motor 163 passes through the installation plate 121 and is fixedly connected to the second bidirectional lead screw 162; a third motor 164, fixedly connected to the outer wall of the limit seat 12. The output end of the third motor 164 passes through the limit seat 12 and is fixedly connected to the installation plate 121.

[0040] During specific implementation, the limiting seat 12 is slidably limited through the chute 11. Synchronously starting the two hydraulic rods 111 can drive the limiting seat 12 to move, facilitating the docking of the straight pipe body 31 and the bent pipe body 30. And through the limiting of the mounting plate 121 by the limiting seat 12, the rotational limiting of the limiting rod 13 is realized, enabling the limiting rod 13 to rotate synchronously with the bent pipe body 30 and the straight pipe body 31. When one end of the straight pipe body 31 contacts the mounting plate 121, the two clamping plates 1611 are inside the straight pipe body 31. Starting the second motor 163 drives the two-way lead screw 162 to rotate, thereby driving the two sliders 161 to move synchronously. The clamping plates 1611 are used to contact the inner wall of the straight pipe body 31 for auxiliary positioning. Starting the third motor 164 can drive the mounting plate 121 and its components to rotate, thereby driving the bent pipe body 30 and the straight pipe body 31 to rotate around the axis of the straight pipe body 31 for welding.

[0041] Embodiment 2

[0042] On the basis of Embodiment 1, in order to facilitate the stable limiting of the bent pipe body 30 and the straight pipe body 31 before welding the bent pipe body 30 and the straight pipe body 31, it is convenient for subsequent automatic welding.

[0043] As Figures 1 - 5 shown, in this embodiment, the positioning module 15 includes: a regulating frame 151, fixedly connected to the top of the base 10. Two first positioning seats 152 are slidably connected inside the regulating frame 151. A first two-way lead screw 153 is rotatably connected inside the regulating frame 151. The first two-way lead screw 153 penetrates through the two first positioning seats 152, and the adjacent segments of the first positioning seats 152 are threadedly engaged with the first two-way lead screw 153. A first motor 154 is fixedly connected to the top of the regulating frame 151, and the output end of the first motor 154 is fixedly connected to the first two-way lead screw 153; a first clamping plate 155, slidably connected to the outer wall of the regulating frame 151. A fourth hydraulic rod 1551 is fixedly connected to the outer wall of the regulating frame 151, and the output end of the fourth hydraulic rod 1551 is fixedly connected to the first clamping plate 155; a vertical plate 156, fixedly connected to the top of the base 10. A second clamping plate 1561 is slidably connected to one side of the vertical plate 156. A fifth hydraulic rod 1562 is fixedly connected to one side of the vertical plate 156, and the output end of the fifth hydraulic rod 1562 is fixedly connected to the second clamping plate 1561; two sixth hydraulic rods 157, fixedly connected to the top of the base 10, and a second positioning seat 1571 is fixedly connected to the tops of the two sixth hydraulic rods 157.

[0044] During specific implementation, the first motor 154 is started to drive the first bidirectional lead screw 153 to rotate, thereby driving the two first positioning seats 152 to approach each other, and the two first positioning seats 152 are used in cooperation to clamp and limit the straight pipe body 31; before the elbow pipe body 30 and the straight pipe body 31 are butted, the first clamping plate 155 contacts the adjacent end surface of the straight pipe body 31, and starting the fourth hydraulic rod 1551 can lift the first clamping plate 155; the vertical plate 156 slidably limits the second clamping plate 1561, and before the fixing plate 14 contacts the elbow pipe body 30, auxiliary positioning is performed by the second clamping plate 1561 contacting the end surface of the elbow pipe body 30, and starting the fifth hydraulic rod 1562 can horizontally move the second clamping plate 1561 away; the sixth hydraulic rod 157 and the first positioning seat 152 have the same external shape structure, and the bottom of the elbow pipe body 30 can be supported by the sixth hydraulic rod 157 before welding.

[0045] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0046] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic pipe welding machine, characterized in that, Comprising: A base (10), on the top of which a welded pipe unit (20) is fixedly connected; A limit seat (12), slidably connected to the top of the base (10), on one side of the limit seat (12) a limit rod (13) is rotatably connected, and a second clamping ring (132) is slidably connected to the outer wall of the limit rod (13); A fixing plate (14), fixed to the arc-shaped end of the limit rod (13), and a clamping seat (141) for limiting the bent pipe body (30) is slidably connected inside the fixing plate (14); A positioning module (15), arranged on the top of the base (10) for positioning the bent pipe body (30); A driving module (16), arranged inside the limit seat (12) for driving the limit rod (13) to rotate.

2. The automatic pipe welding machine according to claim 1, wherein A chute (11) is opened on the top of the base (10), the limit seat (12) is slidably connected to the chute (11), two first hydraulic rods (111) are fixedly connected to one inner wall of the chute (11), the output end of the first hydraulic rod (111) is fixedly connected to the limit seat (12), an installation plate (121) is rotatably connected inside the limit seat (12), and the limit rod (13) is fixedly connected to the installation plate (121).

3. The automatic pipe welding machine according to claim 2, wherein The driving module (16) includes: Two sliders (161), slidably connected to one side of the installation plate (121), and a clamping plate (1611) is fixedly connected to one end of the slider (161); A second bidirectional lead screw (162), rotatably connected inside the installation plate (121), the second bidirectional lead screw (162) penetrates through the two sliders (161), and the adjacent segments of the slider (161) and the second bidirectional lead screw (162) are screwed together; A second motor (163), fixedly connected inside the installation plate (121), and the output end of the second motor (163) penetrates through the installation plate (121) and is fixedly connected to the second bidirectional lead screw (162); A third motor (164), fixedly connected to the outer wall of the limit seat (12), and the output end of the third motor (164) penetrates through the limit seat (12) and is fixedly connected to the installation plate (121).

4. The automatic pipe welding machine according to claim 2, characterized in that, A first clamping ring (131) is fixedly sleeved on the outer wall of the limit rod (13), and balls (133) are rotatably connected to the inner walls of the first clamping ring (131) and the second clamping ring (132), a clamping rod (137) is slidably connected to the outer wall of the limit rod (13), and the clamping rod (137) is fixedly connected to the second clamping ring (132).

5. The automatic pipe welding machine according to claim 4, characterized in that, A sliding rod (136) is rotatably connected to the outer wall of the clamping rod (137), a second hydraulic rod (134) is fixedly connected to one side of the installation plate (121), and a clamping block (135) is fixedly sleeved on the output end of the second hydraulic rod (134), and the sliding rod (136) penetrates through the clamping block (135) and is slidably connected thereto.

6. The automatic pipe welding machine according to claim 1, characterized in that, Two third hydraulic rods (142) are symmetrically fixedly connected to one side of the fixing plate (14), and the output ends of the third hydraulic rods (142) are fixedly connected to the clamping seat (141).

7. The automatic pipe welding machine according to claim 1, characterized in that, The positioning module (15) includes: The regulating frame (151) is fixedly connected to the top of the base (10). Two first positioning seats (152) are slidably connected inside the regulating frame (151). A first bidirectional lead screw (153) is rotatably connected inside the regulating frame (151). The first bidirectional lead screw (153) penetrates through the two first positioning seats (152). The adjacent segments of the first positioning seats (152) and the first bidirectional lead screw (153) are in threaded connection. A first motor (154) is fixedly connected to the top of the regulating frame (151). The output end of the first motor (154) is fixedly connected to the first bidirectional lead screw (153). A first clamping plate (155) is slidably connected to the outer wall of the regulating frame (151). A fourth hydraulic rod (1551) is fixedly connected to the outer wall of the regulating frame (151). The output end of the fourth hydraulic rod (1551) is fixedly connected to the first clamping plate (155). A vertical plate (156) is fixedly connected to the top of the base (10). A second clamping plate (1561) is slidably connected to one side of the vertical plate (156). A fifth hydraulic rod (1562) is fixedly connected to one side of the vertical plate (156). The output end of the fifth hydraulic rod (1562) is fixedly connected to the second clamping plate (1561). Two sixth hydraulic rods (157) are fixedly connected to the top of the base (10). A second positioning seat (1571) is fixedly connected to the tops of the two sixth hydraulic rods (157).

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