Pipeline welding machine

Abstract

The utility model discloses a pipeline welding machine which comprises a machine box, a heating assembly and at least two clamp sets, and each clamp set is used for clamping a pipe fitting to be welded. Each clamp set is installed on the top of the machine box through a base, and the two clamp sets can be close to each other or away from each other. The device further comprises a position adjusting mechanism which is located in the base of at least one clamp set and used for adjusting the positions of the clamp sets in the second direction and the third direction, so that the axes of the two to-be-welded pipes are close to or even coincide as much as possible, the outer walls of the two to-be-welded pipes are aligned as much as possible, and therefore the opposite area formed by the two to-be-welded pipes is enlarged to be maximum. The welding area is maximum, and the welding strength of the two pipe fittings is finally improved; the position adjusting mechanism is arranged in the base, the position of the clamp set on the base can be adjusted more directly, the total size of the clamp set and the base can be reduced, and the situation that the size of the clamp set provided with the position adjusting mechanism is too large is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a field of fusion technology, in particular to a pipeline welding machine. BACKGROUND

[0002] The prior art CN 106903894 A discloses a plastic pipe hot melting welding equipment, which comprises a case, the case has support members at both ends, a guide shaft is arranged between the support members, a pipeline fixed clamp and a pipeline movable clamp are arranged on the guide shaft, the pipeline fixed clamp and the pipeline movable clamp are used for clamping the pipeline, a pipeline heating device is movably arranged between the pipeline fixed clamp and the pipeline movable clamp, the end of the pipeline is heated by the pipeline heating device, and then the pipeline movable clamp is moved to fuse the two pipelines together.

[0003] In the above prior art, the pipeline fixed clamp and the pipeline movable clamp are arranged on the guide shaft, and the position of any clamp cannot be adjusted in the direction perpendicular to the guide shaft in the horizontal plane, that is, the front-back direction or the vertical direction in the horizontal plane. For a pipe to be welded with a large outer diameter, there is a certain manufacturing tolerance, which causes the wall thickness of the two pipes to be welded to be not completely consistent, or the shape to slightly deviate from the standard circle. When the two pipes to be welded are installed on the clamp, the centers of the two pipes to be welded may be misaligned or the pipe walls may be partially misaligned, that is, when the centers or the pipe walls of the two pipes to be welded deviate in the front-back direction or the vertical direction in the horizontal plane, the radial width of the area actually formed by the welding of the pipe wall after the welding is completed will be relatively small, that is, reliable welding cannot be formed, and the strength of the welding position is relatively poor. This problem is particularly obvious for pipes with a large outer diameter, because the larger the outer diameter, the greater the manufacturing tolerance of the pipe, and the greater the deviation of the pipe from the standard cylinder, making it more likely that the welding is unreliable and the welding strength is poor.

[0004] Therefore, it is necessary to improve the pipeline welding machine to solve the problem that the existing welding machine cannot adjust the position of any clamp in the direction perpendicular to the guide shaft of the mounting clamp in the horizontal plane, that is, the front-back direction or the vertical direction in the horizontal plane, and the welding strength is poor after the pipe fitting is welded. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model aims to provide a pipeline welding machine, which solves the problem that the pipe welding equipment in the prior art cannot adjust the position of any clamp in the direction perpendicular to the guide shaft of the mounting clamp in the horizontal plane, that is, the front-back direction or the vertical direction in the horizontal plane, and the welding strength is poor after the pipe fitting is welded.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0007] A pipe welding machine comprises a machine box, a heating assembly and two clamp assemblies, each of the clamp assemblies is used for clamping a pipe to be welded respectively; the heating assembly can be placed into or moved out of the two clamp assemblies, and when the heating assembly is placed into the two clamp assemblies, the end of the pipe can be heated;

[0008] Each of the clamp assemblies is installed on the top of the machine box through a base, and the two clamp assemblies can be close to or away from each other;

[0009] The direction in which the two clamp assemblies are close to or away from each other is defined as a first direction, the second direction in the horizontal plane is perpendicular to the first direction, and the third direction is perpendicular to the horizontal plane;

[0010] Further comprising a position adjusting mechanism in the base of at least one of the clamp assemblies, used for adjusting the position of the clamp assembly in the second direction and the third direction.

[0011] The pipe welding machine of the utility model, the clamp assembly is arranged on the base respectively, and the position of at least one clamp assembly is adjusted by using the position adjusting mechanism, so that the pipe to be welded clamped by the clamp assembly can be finely adjusted in the second direction and the third direction, the axes of the two pipes to be welded are close to each other or even coincide, and the outer walls of the two pipes to be welded are aligned as much as possible, so that the area of the pipe wall of the two pipes to be welded is increased to form a right angle, the welding area is maximum, and the welding strength of the two pipes is finally improved; the position adjusting mechanism is arranged in the base, on the one hand, the position of the clamp assembly on the base can be directly adjusted, and the adjustment effect is stable and high in precision; on the other hand, the position adjusting mechanism can be combined with the base, the overall structure is compact, the overall volume of the two is reduced, and the volume of the clamp assembly provided with the position adjusting mechanism is prevented from being too large.

[0012] Preferably, the position adjusting mechanism comprises a prying assembly for simultaneously adjusting the position of the clamp assembly in the second direction and the third direction; and the position adjusting mechanism comprises a translation assembly for adjusting the position of the clamp assembly in the second direction. The prying assembly can simultaneously adjust the position of the clamp assembly and the pipe to be welded clamped thereby in the second direction and the third direction, and can appropriately improve the adjustment efficiency, and when the prying assembly is used in cooperation with the translation assembly, the adjustment of the two pipes to be welded in the second direction and the third direction is more free, and the alignment precision of the two is higher.

[0013] Preferably, the base provided with the position adjusting mechanism comprises a support, a pitching member and a fixing member, the pitching member is arranged on the fixing member and movably connected with the fixing member, the support is arranged above the pitching member and fixed relative to the pitching member in the third direction, and the corresponding clamp assembly is fixed to the support.

[0014] The prying assembly is movably connected with the tilting piece to adjust the levelness of the tilting piece and the support piece.

[0015] The translation assembly is connected with the support piece to adjust the position of the support piece in the second direction.

[0016] The support piece is used to install the clamp set. The tilting piece is movably connected with the fixed piece. The tilting piece can be tilted to a certain height relative to the fixed piece under the action of the prying assembly, so as to adjust the levelness of the tilting piece and the support piece. Thus, the clamp set on the support piece will be displaced in the second direction and the third direction, so as to simultaneously adjust the position of the to-be-welded pipes clamped by the clamp set in the second direction and the third direction. On this basis, if the two to-be-welded pipes are still misaligned in the second direction, the position of the support piece in the second direction is adjusted by the translation assembly, so as to adjust the position of the clamp set and the to-be-welded pipes clamped thereby in the second direction, thereby realizing the accurate alignment of the positions of the two to-be-welded pipes in the second direction. Finally, the positions of the two to-be-welded pipes in the second direction and the third direction are aligned.

[0017] Preferably, the tilting piece comprises a body covering the fixed piece and a side plate extending from the edge of the body in the third direction. The side plate surrounds the side wall of the fixed piece extending in the second direction. The tilting piece is movably connected with the fixed piece through the side plate.

[0018] The body is used to bear the support piece and form a stable cooperation with the support piece, so that the levelness adjustment of the tilting piece can be transmitted to the support piece and the clamp set thereon. The side plate is used to form a movable connection with the fixed piece and is tilted by the prying assembly at least on one side, so as to change the levelness of the body. The body and the side plate cooperate to stably adjust the levelness of the tilting piece relative to the fixed piece under the action of the prying assembly, so as to adjust the positions of the clamp set in the second direction and the third direction.

[0019] Preferably, the prying assembly comprises a pivoting piece, an eccentric piece and a first operating piece. The pivoting piece and the eccentric piece are respectively arranged at two ends of the side plate. The tilting piece and the fixed piece are rotatably connected through the pivoting piece. The eccentric piece is rotatably connected with the fixed piece and movably connected with the side plate. The first operating piece is fixedly connected with the eccentric piece. The first operating piece drives the eccentric piece to rotate, so as to change the levelness of the tilting piece and the positions of the clamp set on the support piece in the second direction and the third direction.

[0020] Due to the rotation connection between the eccentric part and the fixed part, when the eccentric part rotates under the action of the first operating part, a rotation center is generated with the fixed part, and the connection part between the eccentric part and the side plate is eccentric to the rotation center, thus the eccentric part can lift or drop one end of the side plate, at the same time, the pitch part and the fixed part are rotationally connected through the pivot part, thus the side plate swings a certain angle with the pivot part as the center under the action of the eccentric part, thus the levelness of the body is changed, and the center of the clamp group in the second direction and the third direction is also changed, the pivot part and the eccentric part connect the pitch part and the fixed part, which can avoid the separation of the pitch part and the fixed part, ensure the stability of the support part on the pitch part and the clamp group, and make the clamp group not only be able to adjust the position in the second direction and the third direction, but also avoid affecting the stability of the clamp group and the to-be-welded pipe clamped by the clamp group.

[0021] Preferably, the eccentric part includes a fixedly connected eccentric part and a center shaft, the eccentric part is movably connected with the side plate, the center shaft is rotationally connected with the fixed part, and the first operating part is fixedly connected with the center shaft. The fixedly connected eccentric part and the center shaft ensure the structural strength of the eccentric part, and synchronous action of the two, at the same time, the eccentric part is eccentrically arranged relative to the center shaft, and there is a displacement in the second direction and the third direction when rotating, thereby lifting one end of the side plate relative to the fixed part.

[0022] Preferably, the eccentric part includes an eccentric pin, one end of the side plate is provided with a movable slot, the eccentric pin is at least partially arranged in the movable slot and can abut against the inner wall of the movable slot, so that the eccentric rotation of the eccentric pin is transmitted to the pitch part through the inner wall of the movable slot. The eccentric pin cooperates with the movable slot to ensure the normal rotation of the eccentric part relative to the fixed part, and at the same time, the pitch part is prised, which is simple in structure, not easy to malfunction, and easy to control the displacement, and convenient for the operator to adjust.

[0023] Preferably, the translation assembly includes a second operating part, a screw rod and a fixed block, the second operating part is fixedly connected with the screw rod, the screw rod extends along the second direction, the fixed block is sleeved on the screw rod and is threadedly connected with the screw rod, and the fixed block is fixedly connected with the support part; when the screw rod is rotated, the fixed block moves on the screw rod along the second direction and drives the support part to move stably in the second direction, so as to realize the accurate adjustment of the support part and the clamp group thereon in the second direction; and since the support part has a cooperation relationship with the body of the pitch part, the support part and the body of the pitch part are adjusted synchronously in levelness, and then the support part can independently adjust the position in the second direction, so that the clamp group is accurately adjusted in the second direction and the third direction.

[0024] Preferably, the body of the pitching member forms a through groove, the through groove extends along the second direction, the screw rod passes through the through groove, the screw rod is further sleeved with a screw pair of abutting bodies on both sides of the through groove, and the screw rod is further provided with a locking member close to one end of the second operating member. The screw pair functions as follows: when the screw rod rotates, no movement along the second direction is generated, only the fixed block forms movement along the second direction, and the movement of the support member along the second direction is adjusted. The through groove utilizes the space on the body of the pitching member, reduces the space occupied by the position adjusting mechanism on the base, and makes the base structure relatively compact and smaller in size. The locking member functions as follows: after the position of the support member and the clamp group thereon along the second direction is adjusted, the screw rod is locked to avoid random rotation of the screw rod due to misoperation or the like in subsequent welding operation, so that the position of the support member and the clamp group thereon along the second direction remains constant in the subsequent welding operation.

[0025] Preferably, the body of the pitching member and the fixed member form an accommodating groove, and the fixed block and the end of the screw rod are located in the accommodating groove. The space between the body of the pitching member and the fixed member is fully utilized, the stability of the support member is not affected, the base space is saved, and the screw rod and the fixed block are protected by the pitching member and the fixed member to avoid interference with position adjustment caused by foreign matter clamped into the screw groove on the screw rod.

[0026] Preferably, the base further comprises a hard rail and a sliding member in sliding fit, the side surface of the hard rail is provided with a sliding groove extending along the second direction, and one side of the sliding member is inserted into the sliding groove. One of the hard rail and the sliding member is fixedly connected with the support member, and the other is fixedly connected with the pitching member. Under the action of the translation assembly, the hard rail and the sliding member can relatively move along the second direction. The hard rail and the sliding member function as follows: the movement of the support member along the second direction is guided to avoid deviation of the support member during movement, ensure the movement accuracy of the support member under the action of the screw rod, and realize accurate adjustment. Meanwhile, the sliding member is inserted into the hard rail from the side, so that the support member and the pitching member are limited in the third direction and cannot be separated in the third direction.

[0027] Preferably, the base further comprises a sliding groove on the top, the sliding groove extending along the first direction, a sliding block and a moving plate, the clamp set comprises a first clamp and a second clamp, the first clamp is fixedly connected with the base, the second clamp is fixedly connected with the moving plate, the sliding block is fixed on the bottom of the moving plate and is slidingly inserted into the sliding groove, and the moving plate moves relative to the base along the first direction to adjust the distance between the first clamp and the second clamp along the first direction, so that the clamp set can be adapted to pipes of different lengths, the adjustable clamp set can improve the stability of pipe clamping, and the cooperation of the sliding groove and the sliding block makes the adjustment of the second clamp more labor-saving and can keep the axes of the first clamp and the second clamp from deviating.

[0028] Preferably, the base with the position adjusting mechanism further comprises a locking mechanism, the locking mechanism comprises a locking seat, a locking body and a connecting piece, the locking seat is fixed to the top of the case, the locking body is fixedly connected to the side plate of the pitching piece, one end of the connecting piece is connected with the locking body, and the other end is connected with the locking seat, the locking mechanism can reduce the gap between components without affecting the adjustment result, improve the stability of the base relative to the top of the case, avoid pipe shaking during processing, and be beneficial to improving pipe welding precision and quality.

[0029] Compared with the prior art, the pipeline welding machine has at least the following beneficial effects:

[0030] The pipeline welding machine has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0032] Figure 1 Structure diagram of the pipeline welding machine of the embodiment of the utility model.

[0033] Figure 2 The schematic diagram of the clamp group and the base of the embodiment of the utility model.

[0034] Figure 3 The structure diagram of the clamp group and the base of the embodiment of the utility model, wherein the position adjusting mechanism is arranged in the base.

[0035] Figure 4 The cooperation diagram of the base and the position adjusting mechanism of the embodiment of the utility model.

[0036] Figure 5 The structure diagram of the prying assembly of the embodiment of the utility model.

[0037] Figure 6 The structure diagram of the translation assembly of the embodiment of the utility model.

[0038] Figure 7 The exploded structure diagram of the support and the translation assembly of the embodiment of the utility model.

[0039] Figure 8 The structure diagram of the movement of the base of the embodiment of the utility model in the first direction on the top of the case.

[0040] Figure 9 The structure diagram of the movement of the base of another embodiment of the utility model in the first direction on the top of the case.

[0041] Explanation of reference signs

[0042] 10, case; 11, base plate; 12, sliding rail; 13, communication groove; 14, motor; 15, slotted; 16, connecting block; 17, second screw; 18, screw rotation pair; 19, locking seat;

[0043] 20, heating assembly;

[0044] 30, first clamp group; 31, first clamp; 32, second clamp;

[0045] 40, second clamp group;

[0046] 50, first base; 51, support; 511, boss; 512, guide block installation plane; 52, pitching piece; 521, body; 522, side plate; 523, movable groove; 524, through groove; 525, containing groove; 53, fixed piece; 531, rotation groove; 532, notch; 54, hard rail; 541, sliding groove; 55, sliding piece;

[0047] 60, second base; 61, sliding groove; 62, sliding block; 63, moving plate; 631, through hole; 64, guide block; 65, tightening member;

[0048] 70, position adjusting mechanism; 71, prying assembly; 711, pivoting member; 712, eccentric member; 7121, eccentric portion; 7122, central shaft; 713, first operating member; 714, locking body; 715, connecting member; 72, translation assembly; 721, second operating member; 722, screw rod; 723, fixed block; 724, screw pair; 725, locking member;

[0049] 80, flattening mechanism. DETAILED DESCRIPTION

[0050] The technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0051] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0052] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0053] As shown in FIG. 1, the present application comprises a first base 1, a second base 2, a sliding groove 61, a sliding block 62, a moving plate 63, a guide block 64, a tightening member 65, a first operating member 713, a second operating member 721, a screw rod 722, a fixed block 723, a screw pair 724, a locking member 725, a pivoting member 711, an eccentric member 712, a central shaft 7122, a locking body 714, a connecting member 715, a prying assembly 71, a translation assembly 72, and a position adjusting mechanism 70. Figure 1As shown, the pipe welding machine of this utility model embodiment includes a housing 10, a heating component 20, and two clamping groups. The housing 10 is used to house electrical and control equipment and provides an installation platform for components such as the heating component 20 and the clamping groups. Each clamping group is used to clamp a pipe fitting to be welded. The heating component 20 can be placed between the two clamping groups. When the heating component 20 is placed between the two clamping groups, it can heat the end of the pipe fitting. The heating methods include contact heating and non-contact heating.

[0054] Each fixture assembly is mounted on the top of the chassis 10 via a base, and the two fixture assemblies can be close to or far apart. There are several specific methods, such as the base being movably connected to the chassis 10 and fixedly connected to the corresponding fixture assembly, with the base driving the fixture assembly to move; or the base being fixedly connected to the chassis 10 and the corresponding fixture assembly being movably connected to the base, with the fixture assembly moving on its own. In any of the above cases, the base must be mounted on the top of the chassis 10 and kept stable.

[0055] For ease of description, the direction in which the two clamping sets move closer or further apart is defined as the first direction, the direction perpendicular to the first direction in the horizontal plane is defined as the second direction, and the direction perpendicular to the horizontal plane is defined as the third direction. Corresponding to the attached diagram, the first direction is... Figure 1 The X-axis direction, the second direction is Figure 1 The Y-axis direction in the middle, and the third direction is Figure 1 The Z-axis direction; that is, the two clamping groups approach each other in the X-axis direction, so that the heated pipe ends abut and fuse together. Taking the main view of the pipe welding machine as an example, the first direction is equivalent to the left and right direction in the main view, the second direction is equivalent to the direction perpendicular to the paper of the main view, that is, the front and back direction, and the third direction is equivalent to the up and down direction in the main view, that is, the vertical direction.

[0056] Due to manufacturing tolerances, the pipes held by each clamping assembly may have some deviations, such as misalignment of the pipe wall or the pipe axis in the second direction, or misalignment in the third direction, or misalignment in both the second and third directions. Therefore, this embodiment also includes a position adjustment mechanism 70, which is located in the base of at least one clamping assembly. It is used to adjust the position of the clamping assembly in the second and third directions, so that the pipes to be welded held by the clamping assembly can be finely adjusted in the second and third directions, so that the axes of the two pipes to be welded are as close as possible or even coincide, and the outer walls of the two pipes to be welded are as aligned as possible, thereby increasing the area where the pipe walls of the two pipes to be welded form a face-to-face shape, maximizing the welding area, and ultimately improving the welding strength of the two pipes. By setting the position adjustment mechanism 70 in the base, on the one hand, the position of the clamping assembly on the base can be adjusted more directly, and the adjustment result is stable and highly accurate; on the other hand, the position adjustment mechanism 70 can be combined with the base, resulting in a compact overall structure, reducing the overall volume of both, and avoiding the clamping assembly with the position adjustment mechanism 70 being too large.

[0057] like Figure 2 As shown, in this embodiment, the fixture group includes a first fixture group 30 and a second fixture group 40, and the base includes a first base 50 and a second base 60. The first fixture group 30 is disposed on the first base 50, and the second fixture group 40 is disposed on the second base 60. The first base 50 is fixedly connected to the chassis 10, and the second base 60 is movably connected to the chassis 10 so as to drive the second fixture group 40 to move in the first direction.

[0058] Of course, in other embodiments, both the first clamp group 30 and the second clamp group 40 can move in the first direction, and the movement methods can be the same or different.

[0059] For example, the second clamping assembly 40 is mounted on the second base 60, which is slidably connected to the top of the chassis 10 via a slider 62 and a slide rail 12, enabling a wide range of movement. Specifically, as shown... Figure 8 As shown, the top of the chassis 10 has a base plate 11, and the base plate 11 is also provided with a slide rail 12 for the second base 60 to slide. The base plate 11 is also provided with a connecting groove 13 that communicates with the inside of the chassis 10. The inside of the chassis 10 has a motor 14 that controls the second base 60 to move along the slide rail 12. The motor 14 is a linear motor 14, and its output end passes through the connecting groove 13 and is fixedly connected to the fixing member 53 at the bottom of the second base 60, driving the fixing member 53 of the second base 60 to move along the slide rail 12 in the first direction, closer to or away from the first base 50.

[0060] The first clamp assembly 30 is mounted on the first base 50. The first base 50 is connected to the base plate 11 on the top of the chassis 10 via screws and bolts. Rotating the screws allows for fine-tuning of the position of the first base 50 on the top of the chassis 10, thereby enabling small-range adjustments to the first clamp assembly 30. Specifically, as shown... Figure 9 As shown, the top of the chassis 10 is provided with a base plate 11, and the base plate 11 is provided with a slot 15 extending along the first direction. The base plate 11 is also provided with a screw rotating pair 18. The second screw 17 is threadedly engaged with the screw rotating pair 18. The second screw 17 is also provided with a connecting block 16. The connecting block 16 is placed in the slot 15 and fixedly connected to the fixing member 53 of the first base 50. By rotating the second screw 17, the connecting block 16 can be moved in the slot 15 along the first direction, and the position of the first base 50 in the first direction can be adjusted at the same time.

[0061] Both the first base 50 and the second base 60 have a fastener 53, and the structures of the fasteners 53 may be the same or different.

[0062] In some embodiments, the position adjustment mechanism 70 is provided in the first base 50, and the position adjustment mechanism 70 is not provided in the second base 60. Due to the presence of the position adjustment mechanism 70, there is a height difference between the first clamp group 30 and the second clamp group 40. Therefore, it is necessary to raise the second base 60 or add an extension layer below the second base 60 so that the height of the pipe to be welded held by the first clamp group 30 and the second clamp group 40 is approximately the same, and the height difference can be eliminated by the position adjustment mechanism 70.

[0063] In other embodiments, both the first base 50 and the second base 60 are provided with a position adjustment mechanism 70, which can adjust the position of both the first clamp group 30 and the second clamp group 40 in the second direction and the third direction upward. However, since the facing area of ​​the two pipes to be welded is only adjusted, it is generally only necessary to adjust one of them. Setting the position adjustment mechanism 70 in only one base can appropriately reduce the cost of the pipe welding machine. Moreover, with one clamp group fixed and the other clamp group adjusted to adjust the position in the second direction and the third direction upward, the operation is also simplified.

[0064] As a preferred option, such as Figure 2 As shown, in this embodiment, the position adjustment mechanism 70 is only provided in the first base 50.

[0065] Specifically, taking the first clamp group 30, the first base 50, and the position adjustment mechanism 70 within them as examples, such as... Figure 4 As shown, the position adjustment mechanism 70 includes a prying component 71 for simultaneously adjusting the position of the first clamping assembly 30 in the second direction and the third direction; the position adjustment mechanism 70 also includes a translation component 72 for adjusting the position of the first clamping assembly 30 in the second direction. The prying component 71 can simultaneously adjust the position of the first clamping assembly 30 and the clamped tube to be welded in the second direction and the third direction. During use, to ensure alignment of the tube to be welded with another tube to be welded in the third direction, misalignment may occur in the second direction. Therefore, the translation component 72 needs to fine-tune the first clamping assembly 30 and the clamped tube to be welded again to align the two tubes in the second direction, ultimately achieving full alignment of the two tubes in the second direction and the third direction. Of course, if the two tubes are already aligned in the second direction and the third direction after the prying component 71 simultaneously adjusts the position of the first clamping assembly 30 and the clamped tube to be welded, then the translation component 72 is not needed. This setup not only improves adjustment efficiency by utilizing the prying component 71 (which requires less effort than a regular lifting mechanism), but also allows for more free adjustment of the two pipes to be welded in the second and third directions, resulting in higher alignment accuracy.

[0066] like Figure 4As shown, the first base 50 with the built-in position adjustment mechanism 70 includes a support member 51, a pitch member 52, and a fixing member 53. The pitch member 52 is mounted on the fixing member 53 and is movably connected to the fixing member 53. The support member 51 is located above the pitch member 52, and the two are fixed relative to each other in a third direction. The corresponding first clamp group 30 is fixed to the support member 51. The prying component 71 is movably connected to the pitch member 52 to adjust the levelness of the pitch member 52 and the support member 51. The translation component 72 is connected to the support member 51 to adjust the position of the support member 51 in a second direction.

[0067] In the first base, the fixing member 53 also functions to cooperate with the pitching member 52. As the mounting base for the pitching member 52, the pitching member 52 is movably connected to the fixing member 53. Under the action of the prying component 71, the pitching member 52 can be tilted relative to the fixing member 53 to a certain height, adjusting the level of the pitching member 52 and the support member 51. As a result, the first clamping group 30 located on the support member 51 will be displaced in both the second direction and the third direction, thereby simultaneously adjusting the position of the pipe to be welded held by the first clamping group 30 in the second direction and the third direction. On this basis, if there is still a misalignment in the second direction between the two pipes to be welded, the position of the support member 51 in the second direction can be adjusted by the translation component 72, thereby adjusting the position of the first clamping group 30 and the clamped pipe to be welded in the second direction, achieving precise alignment of the two pipes to be welded in the second direction, and finally ensuring that the two pipes to be welded are aligned in both the second direction and the third direction.

[0068] For some pipe fittings with larger diameters, there may be some processing errors, which may cause the pipe axis to not coincide with the axis of the clamping assembly when the pipe to be welded is clamped. The inability to coincide mainly includes the following situations: there is an offset value and / or offset angle between the pipe axis and the clamping assembly axis in the second direction and / or third direction, resulting in an offset value and / or offset angle between the two pipe axes in the second direction and / or third direction. Although the offset value or offset angle between the pipe axis and the clamping assembly axis is not easy to eliminate, the prying component 71 of this embodiment can not only adjust the position of the first clamping assembly 30 and the pipe to be welded held in the second direction and third direction, reducing the offset value between the two pipes to be welded, but also adjust the levelness of the pitching component and the support component, and adjust the tilt angle between the axis of the first clamping assembly 30 and the pipe to be welded held and the horizontal plane. Therefore, even if the offset angle between the pipe axis and the axis of the clamping assembly 30 cannot be adjusted, the axes of the two pipes to be welded can be made to coincide as much as possible, so as to maximize the area of ​​the pipe walls facing each other.

[0069] After the above adjustments, the end face of the pipe to be welded may be tilted relative to the vertical plane, or the end face may be rough, which is not conducive to the end face connection of the two pipes to be welded. Therefore, the pipe welding machine in this embodiment also includes a leveling mechanism 80, which can cut the end face of the pipe to be welded to make the pipe end face smooth.

[0070] like Figure 5 As shown, the pitch member 52 includes a body 521 covering the fixing member 53 and a side plate 522 extending from the edge of the body 521 along a third direction. The side plate 522 surrounds the side wall of the fixing member 53 extending along a second direction, and the pitch member 52 is movably connected to the fixing member 53 through the side plate 522. The body 521 serves to support the support member 51. The lower surface of the support member 51 fits against the upper surface of the body 521 to form a stable fit, so as to prevent the support member 51 from shaking relative to the body 521, so that the level adjustment of the pitch member 52 can be transmitted to the support member 51 and the first clamp group 30 on it. The side plate 522 serves to form a movable connection with the fixing member 53 and is pried up by the prying component 71 at least one side, thereby changing the level of the body 521. The body 521 and the side plate 522 cooperate to smoothly adjust the level of the pitch member relative to the fixing member 53 under the action of the prying component 71, thereby adjusting the position of the first clamp group 30 in the second and third directions.

[0071] Generally, the support member 51 is a cubic plate structure with a certain thickness, with a flat surface or a raised structure; the body 521 of the pitch member 52 is also a cubic plate structure with a certain thickness, and the side plate 522 is a cubic plate structure with a certain thickness integrally formed on the opposite side of the body 521; the fixing member 53 is also a cubic plate structure with a certain thickness.

[0072] like Figure 5 As shown, the prying assembly 71 includes a pivot 711, an eccentric member 712, and a first operating member 713; the pivot 711 and the eccentric member 712 are respectively disposed at both ends of the side plate 522; the pitch member 52 and the fixing member 53 are rotatably connected through the pivot 711; the eccentric member 712 is rotatably connected to the fixing member 53 and movably connected to the side plate 522; the first operating member 713 is fixedly connected to the eccentric member 712, and the first operating member 713 drives the eccentric member 712 to rotate, so as to change the level of the pitch member 52 and the position of the clamp assembly on the support member 51 in the second direction and the third direction.

[0073] Since the eccentric member 712 is rotatably connected to the fixed member 53, when the eccentric member 712 rotates under the action of the first operating member 713, it generates a rotation center with the fixed member 53. The connection point between the eccentric member 712 and the side plate 522 is eccentric relative to the rotation center. Therefore, the eccentric member 712 will cause one end of the side plate 522 to tilt up or down. Simultaneously, the pitch member 52 and the fixed member 53 are rotatably connected through the pivot member 711. Therefore, under the action of the eccentric member 712, the side plate 522 swings about the pivot member 711 as a certain distance. The angle changes the level of the body 521 and also changes the position of the center of the first clamping assembly 30 in the second and third directions. The pivot 711 and the eccentric 712 connect the pitching member 52 and the fixing member 53, which can prevent the pitching member 52 from separating from the fixing member 53, and ensure the stability of the support member 51 on the pitching member 52 and the first clamping assembly 30. This allows the first clamping assembly 30 to be adjusted in position in the second and third directions, while avoiding affecting the stability of the first clamping assembly 30 and the pipe to be welded held.

[0074] Specifically, such as Figure 5 As shown, the eccentric component 712 includes an eccentric portion 7121 and a central shaft 7122 that are fixedly connected. The eccentric portion 7121 is movably connected to the side plate 522, and the central shaft 7122 is rotatably connected to the fixing member 53. The first operating member 713 is fixedly connected to the central shaft 7122. The fixedly connected eccentric portion 7121 and central shaft 7122 ensure the structural strength of the eccentric component 712. The two operate synchronously. At the same time, the eccentric portion 7121 is eccentrically set relative to the central shaft 7122. When rotating, there is an offset in the second direction and the third direction, which causes one end of the side plate 522 to tilt relative to the fixing member 53.

[0075] The fixing member 53 is provided with a rotating groove 531. One end of the central shaft 7122 is rotatably embedded in the rotating groove 531. The rotating groove 531 can be a complete circular groove or an arc-shaped groove with a notch 532. In this embodiment, for example... Figure 5 As shown, the first operating component 713 is a handle, the rotating groove 531 is an arc-shaped groove with a notch 532, and part of the central shaft 7122 is exposed in the notch 532 of the rotating groove 531. The handle is fixedly connected to this part of the central shaft 7122. Thus, the handle can drive the eccentric component 712 to rotate, and the rotation amplitude is limited by the notch 532 of the arc-shaped groove to prevent the eccentric component 712 from rotating too much.

[0076] Turning the handle up or down causes the central shaft 7122 to rotate, and the eccentric part 7121 to rotate around the central shaft 7122, pushing the pitch member 52 to close downward or open upward around the pivot member 711, changing the levelness of the pitch member body 521 and its support member 51, and thus changing the position of the center of the first clamp group 30 in the second direction and the third direction.

[0077] likeFigure 5 As shown, the eccentric part 7121 includes an eccentric pin, and one end of the side plate 522 is provided with a movable groove 523. The eccentric pin is at least partially inserted into the movable groove 523 and can abut against the inner wall of the movable groove 523 so that the eccentric rotation of the eccentric pin is transmitted to the pitch member 52 through the inner wall of the movable groove 523.

[0078] Specifically, the movable groove 523 is a horizontally arranged closed groove, and the eccentric pin is eccentrically set at the end of the central shaft 7122. When the central shaft 7122 rotates under the action of the first operating member 713, the eccentric pin generates a second-direction and a third-direction offset, and moves within the movable groove 523. Since the movable groove 523 is horizontally arranged, its horizontal width is greater than the diameter of the eccentric pin. Therefore, when the eccentric pin moves within the movable groove 523, it will not exert a second-direction force on the side plate 522, but will exert a third-direction force on the upper and lower inner walls of the movable groove 523, causing one end of the side plate 522 to move in the third-direction upward. At the same time, since the pivot member 711 is rotatably connected to the other end of the side plate 522 and the fixing member 53, the side plate 522 can only rotate around the pivot member 711 as the center, thereby changing the levelness of the body 521 and its supporting member 51, and thus changing the position of the center of the first clamping group 30 in the second-direction and third-direction upward.

[0079] To further explain, the side plates 522 extending from the edge of the body 521 along a third direction include two pieces. The two side plates 522 are respectively arranged around the opposite side walls of the fixing member 53 extending along the second direction. The pivot member 711 is a pivot shaft that extends along the first direction, passes through the fixing member 53, and has its two ends inserted into the two side plates 522 respectively. That is, the pivot shaft passes through the two side plates 522 and the fixing member 53, which can improve the stability of the pivoting movement of the pitch member 52 relative to the fixing member 53. Both ends of the central shaft 7122 are fixed with eccentric pins. Each of the two side plates 522 has a corresponding movable groove 523. Each eccentric pin is at least partially inserted into the corresponding movable groove 523, so that when the central shaft 7122 rotates, the pitch member 52 tilts upward or closes more smoothly.

[0080] like Figure 6As shown, the translation component 72 includes a second operating member 721, a screw 722, and a fixing block 723. The second operating member 721 is fixedly connected to the screw 722, which extends along a second direction. The fixing block 723 is sleeved on the screw 722 and threadedly connected to it. The fixing block 723 is also fixedly connected to the support member 51. When the screw 722 is rotated, the fixing block 723 moves along the second direction on the screw 722, causing the support member 51 to move smoothly in the second direction, thus achieving precise adjustment of the support member 51 and the first clamping assembly 30 on it in the second direction. Furthermore, since the support member 51 and the body 521 of the pitch member 52 have a cooperative relationship, the support member 51 and the body 521 of the pitch member 52 adjust their level synchronously. Then, the support member 51 can independently adjust its position in the second direction, allowing the first clamping assembly 30 to be precisely adjusted in the second and third directions.

[0081] The body 521 of the pitching member 52 forms a through groove 524, which extends along the second direction. The screw 722 passes through the through groove 524. On both sides of the screw 722, a helical pair 724 abutting against the body 521 is also fitted. A locking member 725 is also provided at the end of the screw 722 near the second operating member 721. The function of the locking member 725 is to lock the screw 722 after the support member 51 and its first clamping assembly 30 are adjusted in the second direction, preventing the screw 722 from rotating freely due to misoperation or other reasons during subsequent welding operations, thus preventing damage to the support. The support member 51 and its first clamping group 30 are offset again in the second direction to ensure that the position of the support member 51 and its first clamping group 30 in the second direction remains constant during subsequent welding operations; the function of the screw pair 724 is that the screw 722 will not move in the second direction when it rotates, only the fixed block 723 moves in the second direction, thereby adjusting the movement of the support member 51 in the second direction; and the through groove 524 utilizes the space on the body 521 of the pitch member 52 to reduce the space occupied by the position adjustment mechanism 70 on the base, making the base structure relatively compact and smaller in size.

[0082] The screw 722 is connected to the body 521 of the pitching member 52 via the through groove 524 and the screw pair 724, so that the screw 722 and the body 521 of the pitching member 52 maintain the same level. That is, the adjustment of the support member 51 by the screw 722 and the fixing block 723 is based on the level adjustment of the pitching member 52. However, it should be noted that since the translation component 72 and the pitching member 52 adjust the level synchronously, when the translation component 72 adjusts the position of the support member 51 in the second direction, it will also slightly change the center height of the first clamp group 30. Therefore, when using the prying component 71 to adjust the center height of the first clamp group 30 in the early stage, it is necessary to appropriately increase or decrease the adjustment amount in the third direction based on the offset value in the second direction, or to use multiple adjustments to make the axes of the two pipes basically coincide or the outer walls basically aligned.

[0083] like Figure 6 and Figure 7 As shown, a receiving groove 525 is formed between the body 521 of the pitching member 52 and the fixing member 53. That is, notches are formed at the positions directly opposite each other on the body 521 and the fixing member 53. After the two are assembled together, the notches overlap to form the receiving groove 525. The ends of the fixing block 723 and the screw 722 are located in the receiving groove 525. This makes full use of the extra space between the body 521 and the fixing member 53 of the pitching member 52, saving space in the first base 50 without affecting the stability of the support member 51. At the same time, the pitching member 52 and the fixing member 53 protect the screw 722 and the fixing block 723, preventing debris from getting stuck in the spiral groove on the screw 722 and interfering with the position adjustment. In this embodiment, the through groove 524 only needs to be opened on one side of the body 521 of the pitching member 52, without completely penetrating the body 521 of the pitching member 52. The through groove 524 is connected to the receiving groove 525, which reduces the processing difficulty, reduces processing errors, and makes the rotation of the screw 722 more stable.

[0084] like Figure 4 and Figure 7As shown, the first base 50 also includes a slidingly fitted rigid rail 54 and a sliding member 55. The rigid rail 54 has a sliding groove 541 extending along the second direction on its side, and one side of the sliding member 55 is inserted into the sliding groove 541. One of the rigid rail 54 and the sliding member 55 is fixedly connected to the support member 51, and the other is fixedly connected to the pitch member 52. Under the action of the translation component 72, the rigid rail 54 and the sliding member 55 can move relative to each other along the second direction, realizing the relative movement of the support member 51 relative to the pitch member 52 along the second direction. The function of the rigid rail 54 and the sliding member 55 is to guide the movement of the support member 51 in the second direction, prevent the support member 51 from deviating during movement, ensure the movement accuracy of the support member 51 under the action of the screw, and achieve precise adjustment. At the same time, the sliding member 55 is inserted into the rigid rail 54 from the side, so that the support member 51 and the pitch member 52 form a third-direction restriction, i.e., the vertical direction, and the two will not separate in the vertical direction.

[0085] like Figure 3 and Figure 7 As shown, both the first base 50 and the second base 60 include a slide 61, a slider 62 and a moving plate 63 located on their respective tops. The slide 61 extends along the first direction. The first clamp group 30 and the second clamp group 40 both include a first clamp 31 and a second clamp 32. The following description uses the first base 50 and the first clamp group 30 as examples.

[0086] The first clamp 31 is fixedly connected to the first base 50, and the second clamp 32 is fixedly connected to the movable plate 63. The slider 62 is fixed to the bottom of the movable plate 63 and slidably inserted into the groove 61. The movable plate 63 moves relative to the first base 50 in the first direction to adjust the distance between the first clamp 31 and the second clamp 32 in the first direction. This allows the first clamp assembly 30 to adapt to pipes of different lengths. When the pipe is short, the distance between the first clamp 31 and the second clamp 32 in the first direction can be reduced. When the pipe is long, the distance between the first clamp 31 and the second clamp 32 in the first direction can be increased to maintain the balance of the pipe and prevent the front end from tilting due to excessive weight at the rear end. The adjustable first clamp assembly 30 can improve the clamping stability of the pipe. The cooperation between the groove 61 and the slider 62 makes the adjustment of the second clamp 32 easier and also keeps the axes of the first clamp 31 and the second clamp 32 from shifting.

[0087] like Figure 3As shown, the upper surface of the support member 51 has a boss 511 extending in the first direction in the middle. The boss 511 has a guide block mounting plane 512 on each side. After the two guide blocks 64 are spaced apart on the guide block mounting plane 512 in the second direction, a sliding groove 61 extending in the first direction is formed between the two guide blocks 64. The bottom surface of the moving plate 63 is fixed with a slider 62. The slider 62 slides and engages with the sliding groove 61, so that the moving plate 63 can move in the first direction. In addition, the moving plate 63 has a through hole 631. A clamping member 65 is provided in the through hole 631. The positions of the through hole 631 and the clamping member 65 correspond to the upper surface of the guide block 64. Rotating the clamping member 65 makes it on the upper surface of the guide block 64, so that the moving plate 63 and the guide block 64 are relatively fixed, ensuring the stability of the second clamp fixedly connected to the moving plate 63.

[0088] like Figure 2 As shown, a first base 50 with a position adjustment mechanism 70 is provided. The vertical distance between the support member 51 and the top of the chassis 10 increases, and there are some gaps between the components. Therefore, in this embodiment, a locking mechanism is also provided on the first base 50. The locking mechanism includes a locking seat 19, a locking body 714, and a connecting member 715. The locking seat 19 is fixed to the top of the chassis 10. The locking body 714 is fixedly connected to the pitch member 52. One end of the connecting member 715 is connected to the locking body 714, and the other end is connected to the locking seat 19.

[0089] In this embodiment, the top of the chassis 10 has a base plate 11, and the locking seat 19 is disposed on the side of the base plate 11. The connecting member 715 is a third screw, which is threadedly connected to the locking seat 19. By rotating the third screw, the vertical distance between the pitch member and the locking seat 19 is controlled, thereby tightening the pitch member. Without affecting the adjustment result, the gap between the components is reduced, and the overall stability of the first base 50 relative to the top of the chassis 10 is improved. This avoids the pipe from shaking during the processing (mainly when flattening the end face of the pipe), which is beneficial to improving the welding accuracy and quality of the pipe.

[0090] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A pipe welding machine comprising a machine box, a heating assembly and two clamp sets, each of the clamp sets being used to clamp a pipe to be welded respectively, the heating assembly being capable of being put into or moved out of the two clamp sets, and when the heating assembly is put into the two clamp sets, the end of the pipe can be heated; characterized in that, each of the clamp sets is installed on the top of the machine box through a base, and the two clamp sets can be moved towards or away from each other; the direction in which the two clamp sets are moved towards or away from each other is defined as a first direction, the second direction in the horizontal plane perpendicular to the first direction is defined as a second direction, and the direction perpendicular to the horizontal plane is defined as a third direction; further comprising a position adjusting mechanism in the base of at least one of the clamp sets, used to adjust the position of the clamp set in the second direction and the third direction. The position adjusting mechanism comprises a prying assembly, used to adjust the position of the clamp set in the second direction and the third direction simultaneously. The position adjusting mechanism comprises a translation assembly, used to adjust the position of the clamp set in the second direction.

2. The pipe welding machine of claim 1, wherein, The base in which the position adjusting mechanism is arranged comprises a support, a pitching member and a fixing member, the pitching member is arranged on the fixing member and is movably connected with the fixing member, the support is arranged above the pitching member and is fixed relative to the pitching member in the third direction, and the corresponding clamp set is fixed to the support. The prying assembly is movably connected with the pitching member, so as to adjust the levelness of the pitching member and the support.

3. The pipe welding machine of claim 2, wherein, The translation assembly is connected with the support, so as to adjust the position of the support in the second direction. The pitching member comprises a body covering the fixing member and a side plate extending from the edge of the body in the third direction, the side plate is arranged outside the side wall of the fixing member extending in the second direction, and the pitching member is movably connected with the fixing member through the side plate. The prying assembly comprises a pivoting member, an eccentric member and a first operating member.

4. The welding machine of claim 3, wherein, The pivoting member and the eccentric member are arranged at two ends of the side plate respectively.

5. The pipe welding machine of claim 4, wherein, The pitching member and the fixing member are rotatably connected through the pivoting member. The eccentric member is rotatably connected with the fixing member and movably connected with the side plate. The first operating member is fixedly connected with the eccentric member, and the first operating member drives the eccentric member to rotate, so as to change the levelness of the pitching member and the position of the clamp set on the support in the second direction and the third direction. The eccentric member comprises a fixedly connected eccentric part and a central shaft, the eccentric part is movably connected with the side plate, the central shaft is rotatably connected with the fixing member, and the first operating member is fixedly connected with the central shaft. The eccentric part comprises an eccentric pin, one end of the side plate is provided with a movable slot, and the eccentric pin is at least partially arranged in the movable slot and can abut against the inner wall of the movable slot, so that the eccentric rotation of the eccentric pin is transmitted to the pitching member through the inner wall of the movable slot.

6. The pipe welding machine of claim 5, wherein, ​ 7. The pipe welding machine of claim 6, wherein, ​ 8. The pipe welding machine of claim 4, wherein, The translation assembly comprises a second operating member, a screw rod and a fixed block, the second operating member is fixedly connected with the screw rod, the screw rod extends along the second direction, the fixed block is sleeved on the screw rod and is threadedly connected with the screw rod, and the fixed block is fixedly connected with the support.

9. The pipe welding machine of claim 8, wherein, The body of the pitching member forms a through groove extending along the second direction, the screw rod passes through the through groove, and a screw pair of abutting bodies is further sleeved on both sides of the screw rod, and an end of the screw rod close to the second operating member is further provided with a locking member; and / or, an accommodating groove is formed between the body of the pitching member and the fixed member, and the fixed block and the end of the screw rod are located in the accommodating groove.

10. The pipe welding machine of claim 8, wherein, The base further comprises a hard rail and a sliding member in sliding fit, the side surface of the hard rail is provided with a sliding groove extending along the second direction, and one side of the sliding member is inserted into the sliding groove; One of the hard rail and the sliding member is fixedly connected with the support, and the other is fixedly connected with the pitching member, and under the action of the translation assembly, the hard rail and the sliding member can relatively move along the second direction.

11. The pipe welding machine of any one of claims 1 to 10, wherein, The base further comprises a sliding groove and a sliding block at the top, the sliding groove extends along the first direction, and the clamp assembly comprises a first clamp and a second clamp; the first clamp is fixedly connected with the base, the second clamp is fixedly connected with the moving plate, the sliding block is fixed to the bottom of the moving plate and is slidingly inserted into the sliding groove, and the moving plate moves along the first direction relative to the base to adjust the interval of the first clamp and the second clamp in the first direction.

12. The pipe welding machine of claim 4, wherein, The base with the position adjusting mechanism further comprises a locking mechanism, and the locking mechanism comprises a locking seat, a locking body and a connecting member; The locking seat is fixed to the top of the case; The locking body is fixedly connected to the side plate of the pitching member; One end of the connecting member is connected with the locking body, and the other end is connected with the locking seat.

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