Alignment platform and multifunctional welding machine

Abstract

The present application provides an alignment platform and a multifunctional welding machine, which relate to the field of welding technology, including: a mounting platform; a vertical adjustment mechanism, which is arranged on the mounting platform and is used to adjust the height of the portion of the mounting platform provided with the vertical adjustment mechanism relative to the horizontal plane; a horizontal adjustment mechanism, which is arranged on the mounting platform, and the horizontal adjustment mechanism can cooperate with the vertical adjustment mechanism to adjust the position of the mounting platform in the horizontal plane. The alignment platform provided by the present application adjusts the height of the mounting platform through the vertical adjustment mechanism, and adjusts the position of the mounting platform in the horizontal plane through the cooperation of the horizontal adjustment mechanism and the vertical adjustment mechanism. The alignment platform is applied to the multifunctional welding machine, which solves the technical problem in the prior art that it takes a lot of time and manpower to adjust the relative position of the welding equipment and the workpiece.

Description

Technical Field

[0001] The present application relates to the field of welding technology, and in particular to an alignment platform and a multifunctional welding machine. Background Art

[0002] Before welding a workpiece, the welding equipment in the prior art usually needs to spend a lot of time and manpower to adjust the relative position of the welding equipment and the workpiece so that the two are relatively parallel and perpendicular. Summary of the invention

[0003] In view of this, the present application provides an alignment platform and a multifunctional welding machine, the purpose of which is to solve the technical problem in the prior art that a lot of time and manpower are required to adjust the relative position of the welding equipment and the workpiece to a certain extent.

[0004] In a first aspect, the present application provides an alignment platform, the alignment platform comprising:

[0005] Installation platform;

[0006] A vertical adjustment mechanism, disposed on the mounting platform, for adjusting the height of a portion of the mounting platform where the vertical adjustment mechanism is disposed relative to a horizontal plane;

[0007] A horizontal adjustment mechanism is arranged on the installation platform, and the horizontal adjustment mechanism can cooperate with the vertical adjustment mechanism to adjust the position of the installation platform on the horizontal plane.

[0008] Preferably, the vertical adjustment mechanism comprises:

[0009] a first wheel portion, the first wheel portion being rotatable about a first rotation axis, the first wheel portion and the first rotation axis being mounted on the mounting platform via a second rotation axis and being rotatable about the second rotation axis, and the second rotation axis being retractable relative to the mounting platform;

[0010] The locking assembly is used to lock the rotational movement of the first wheel portion around the second rotational axis after the first wheel portion rotates around the second rotational axis by a predetermined angle.

[0011] Preferably, the horizontal adjustment mechanism comprises a second wheel portion and a third wheel portion arranged side by side; after the height adjustment of the mounting platform is completed:

[0012] The first wheel portion rotates around the second rotation axis along the first rotation direction by a predetermined angle and is locked by the locking assembly, and the mounting platform swings around the third wheel portion via the first wheel portion and the second wheel portion to adjust the position of the mounting platform on the horizontal plane; or

[0013] The first wheel portion rotates around the second rotation axis along the second rotation direction by a predetermined angle and is locked by the locking assembly, and the mounting platform swings around the second wheel portion via the first wheel portion and the third wheel portion to adjust the position of the mounting platform in the horizontal plane.

[0014] Preferably, the mounting platform comprises: a plurality of supporting feet arranged on the mounting platform, and the plurality of supporting feet are used to be fixed to the ground to support the mounting platform.

[0015] In a second aspect, the present application further provides a multifunctional welding machine, comprising the alignment platform as described above, and the multifunctional welding machine further comprises:

[0016] A driving device and a welding mechanism, wherein the driving device is used to drive the welding mechanism, the alignment platform is used to carry the driving device and the welding mechanism, and the welding mechanism is arranged on one side of the vertical adjustment mechanism of the alignment platform.

[0017] Preferably, the driving device comprises:

[0018] A Z-axis driving mechanism, connected to the welding mechanism and used to drive the welding mechanism to move along a first horizontal direction;

[0019] A Y-axis driving mechanism connected to the Z-axis driving mechanism and used to drive the Z-axis driving mechanism to move in a vertical direction; the Y-axis driving mechanism also includes a counterweight connected to the Z-axis driving mechanism via a pulley assembly, so that the weight of the Z-axis driving mechanism and the welding machine mechanism is balanced;

[0020] An X-axis driving mechanism, connected to the Y-axis driving mechanism and used to drive the Y-axis driving mechanism to move along a second horizontal direction;

[0021] The first horizontal direction is perpendicular to the second horizontal direction.

[0022] Preferably, the welding machine mechanism further comprises:

[0023] Welding gun components;

[0024] A B-axis driving assembly, comprising a first transmission part and a second transmission part connected to each other, wherein the second transmission part is connected to the welding gun assembly, and the second transmission part is used to drive the welding gun assembly to move in a vertical direction and in a second horizontal direction;

[0025] The rotation driving assembly is rotationally connected to the first transmission part and is used to drive the first transmission part to rotate around the first horizontal direction.

[0026] Preferably, the multifunctional welding machine further comprises:

[0027] A position sensor, disposed on the welding gun assembly, for collecting a position signal of the welding gun assembly;

[0028] A position detection component, disposed on the second transmission part and used to obtain a welding trajectory signal;

[0029] A control system is arranged on the alignment platform, and is used to receive the position signal and control the alignment platform to adjust the height of the welding gun assembly and the distance between the welding gun assembly and the workpiece to be welded, and to generate a welding trajectory of the welding gun assembly according to the welding trajectory signal.

[0030] Preferably, the multifunctional welding machine further comprises:

[0031] A welding quality detection component, which is arranged on the welding gun assembly and is used to detect welding defects;

[0032] An inclination sensor, disposed on the first transmission part and used to obtain an angle signal of the welding gun assembly relative to the first horizontal direction;

[0033] The welding quality detection component can send a welding quality signal to the control system when a welding defect is detected. After receiving the welding quality signal, the control system records the current time, the angle signal and the welding position.

[0034] Preferably, the rotation drive assembly is connected to the first transmission part through a first electric slip ring, and the rotation drive assembly further comprises a second electric slip ring spaced apart from the first electric slip ring, and the control system receives the welding quality signal, the angle signal and the welding trajectory signal through the second electric slip ring;

[0035] The control system further comprises an arc voltage tracking module for collecting arc voltage signals, and the control system monitors and stabilizes the pulse arc voltage according to the arc voltage signals.

[0036] The alignment platform provided in the present application adjusts the height of the mounting platform through a vertical adjustment mechanism, and adjusts the position of the mounting platform in the horizontal plane through a horizontal adjustment mechanism cooperating with the vertical adjustment mechanism. The alignment platform is applied to a multi-functional welding machine, which to a certain extent solves the technical problem in the prior art that a lot of time and manpower are required to adjust the relative position of the welding equipment and the workpiece.

[0037] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 A schematic diagram showing a first angle of the multifunctional welding machine is shown;

[0040] Figure 2 A schematic diagram of a Y-axis driving mechanism of a multifunctional welding machine is shown;

[0041] Figure 3 A schematic diagram showing a first angle of a Z-axis driving mechanism of a multifunctional welding machine is shown;

[0042] Figure 4 Shows Figure 3 Schematic diagram of the enlarged view at A in the middle;

[0043] Figure 5 A schematic diagram showing a second angle of the Z-axis driving mechanism of the multifunctional welding machine;

[0044] Figure 6 Shows Figure 5 Schematic diagram of the enlarged view at B in the middle;

[0045] Figure 7 Shows Figure 5 Schematic diagram of the enlarged view at C in the middle;

[0046] Figure 8 A schematic diagram showing a second angle of the multifunctional welding machine;

[0047] Fig. 9 A schematic diagram showing a third angle of the multifunctional welding machine;

[0048] Fig.10 Shows Fig. 9 Schematic diagram of the enlarged view at D in the middle;

[0049] Fig.11 Shows Fig. 9 Schematic diagram of the enlarged view at E in the middle.

[0050] Reference numerals:

[0051] 1-mounting platform; 2-vertical adjustment mechanism; 21-first wheel; 22-first rotation axis; 23-second rotation axis; 24-locking assembly; 241-fork; 242-locking ring; 243-locking rod; 26-first bevel gear; 27-second bevel gear; 3-horizontal adjustment mechanism; 31-second wheel; 4-support foot; 41-support adjustment part; 42-screw rod; 43-third bevel gear; 44-fourth bevel gear; 45-fixing part;

[0052] 5-Z-axis drive mechanism; 6-Y-axis drive mechanism; 61-Y-axis lead screw; 62-Y-axis nut; 63-counterweight; 64-Y-axis linear guide; 65-Y-axis servo motor; 66-pulley assembly; 7-X-axis drive mechanism;

[0053] 811-first electric slip ring; 812-tilt sensor; 813-B-axis servo motor; 814-B-axis lead screw; 815-B-axis nut; 816-B-axis linear guide; 817-rotating axis transmission gear; 818-rotating axis servo motor; 821-position sensor; 822-position detection camera; 823-locking nut; 824-welding gun angle encoder; 825-welding gun porcelain nozzle; 826-welding quality detection camera; 827-angle adjustment bracket; 828-gun core adjustment nut; 829-welding gun tungsten electrode; 83-wire feeding servo motor; 831-wire feeding pressure wheel; 832-wire feeding reducer; 833-wire reel; 84-second electric slip ring; 85-water-gas slip ring; 91-electric control cabinet; 92-display. DETAILED DESCRIPTION

[0054] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0055] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0056] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0057] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0058] Figure 1 A schematic diagram showing a first angle of the multifunctional welding machine is shown; Figure 2 A schematic diagram of a Y-axis driving mechanism of a multifunctional welding machine is shown; Figure 3 A schematic diagram showing a first angle of a Z-axis driving mechanism of a multifunctional welding machine is shown; Figure 4 Shows Figure 3 Schematic diagram of the enlarged view at A in the middle; Figure 5 A schematic diagram showing a second angle of the Z-axis driving mechanism of the multifunctional welding machine; Figure 6 Shows Figure 5 Schematic diagram of the enlarged view at B in the middle; Figure 7 Shows Figure 5 Schematic diagram of the enlarged view at C in the middle; Figure 8 A schematic diagram showing a second angle of the multifunctional welding machine; Fig. 9 A schematic diagram showing a third angle of the multifunctional welding machine; Fig.10 Shows Fig. 9 Schematic diagram of the enlarged view at D in the middle; Fig.11 Shows Fig. 9 Schematic diagram of the enlarged view at E in the middle.

[0059] See also Figures 8 to 11 The alignment platform provided in this embodiment includes: a mounting platform, a vertical adjustment mechanism, a horizontal adjustment mechanism and a support foot. The connection relationship and working principle of the above components will be described in detail below.

[0060] In this embodiment, the vertical adjustment mechanism 2 and the horizontal adjustment mechanism 3 are preferably arranged on the lower end surface of the installation platform 1. The vertical adjustment mechanism 2 is used to adjust the height of the portion of the installation platform 1 provided with the vertical adjustment mechanism 2 relative to the horizontal plane, and the horizontal adjustment mechanism 3 can cooperate with the vertical adjustment mechanism 2 to adjust the position of the installation platform 1 in the horizontal plane. The horizontal adjustment mechanism 3 and the vertical adjustment mechanism 2 can jointly support the installation platform 1.

[0061] The vertical adjustment mechanism 2 includes a first wheel portion 21 that can rotate around a first rotation axis 22. The first wheel portion 21 and the first rotation axis 22 are integrally mounted on the lower end surface of the mounting platform 1 via a second rotation axis 23 and can rotate around the second rotation axis 23. The second rotation axis 23 can be extended relative to the mounting platform 1. The vertical adjustment mechanism 2 in this embodiment also includes a locking assembly 24. The locking assembly 24 is used to lock the rotational movement of the first wheel portion 21 around the second rotation axis 23 after the first wheel portion 21 rotates around the second rotation axis 23 by a predetermined angle. When the locking assembly 24 is in a locked state, the first wheel portion 21 cannot rotate around the second rotation axis 23.

[0062] According to the features described above, it can be known that the vertical adjustment mechanism 2 adjusts the height of the mounting platform 1 by enabling the second rotating shaft 23 to be telescopic relative to the mounting platform 1. In this embodiment, an external thread (not shown in the figure) is formed on the upper end of the second rotating shaft 23, and the vertical adjustment mechanism 2 also includes a second bevel gear 27, and an internal thread matching the external thread is formed on the inner side of the mounting hole of the second bevel gear 27. The second bevel gear 27 is sleeved on the upper end of the second rotating shaft 23 by matching the internal thread with the external thread, so that the second bevel gear 27 and the second rotating shaft 23 form a screw nut assembly.

[0063] The second bevel gear 27 is meshed with the first bevel gear 26, and the first bevel gear 26 is driven by a driving motor. Therefore, the extension and retraction process of the second rotating shaft 23 is as follows: when the driving motor drives the first bevel gear 26 to rotate, the first bevel gear 26 drives the second bevel gear 27 to rotate, and under the drive of the second bevel gear 27, the second rotating shaft 23 completes the rise or fall. In this way, the height adjustment of the mounting platform 1 is achieved. In this embodiment, the locking assembly 24, the first wheel portion 21 and the first rotating shaft 22 are used to cooperate with the horizontal adjustment mechanism 3 to adjust the position of the mounting platform 1 in the horizontal plane, which will be described in detail below.

[0064] In this embodiment, Figure 8 As shown, the horizontal adjustment mechanism 3 includes a second wheel portion 31 and a third wheel portion (not shown in the figure) arranged side by side on the lower end surface of the installation platform 1, and the second wheel portion 31 and the third wheel portion and the first wheel portion 21 mentioned above jointly support the installation platform 1. In this embodiment, the second wheel portion 31 and the third wheel portion can be arranged in the space facing each other between two supporting feet 4 described below. This arrangement makes the second wheel portion 31 and the third wheel portion closer to the two corners of the installation platform 1 which is roughly rectangular in this embodiment, and can improve the stability of the installation platform 1 in the process of adjusting the height of the installation platform 1 described above and in the process of adjusting the position of the installation platform 1 in the horizontal plane described below.

[0065] In order to further improve the stability of the above-mentioned installation platform 1, preferably, the distance between the second wheel portion 31 and the first wheel portion 21 and the distance between the third wheel portion and the first wheel portion 21 can be equal. Figure 8 In the perspective shown, although not shown, it can be understood that the first wheel portion 21, the second wheel portion 31 and the third wheel portion form an isosceles triangle with the connecting line between the first wheel portion 21 and the second wheel portion 31 and the connecting line between the first wheel portion 21 and the third wheel portion as the waist.

[0066] According to the features described above, the specific process of adjusting the position of the installation platform 1 in the horizontal plane will be described in detail below.

[0067] After the height adjustment of the mounting platform 1 is completed: the first wheel portion 21 rotates about the second rotating axis 23 along the first rotation direction by a first predetermined angle, the locking assembly 24 is locked, and the mounting platform 1 is swung by a second predetermined angle through the first wheel portion 21 and the second wheel portion 31 with the third wheel portion as the center to adjust the position of the mounting platform 1 in the horizontal plane; or the first wheel portion 21 rotates about the second rotating axis 23 along the second rotation direction by a first predetermined angle, and the mounting platform 1 is swung by a second predetermined angle through the first wheel portion 21 and the third wheel portion with the second wheel portion 31 as the center to adjust the position of the mounting platform 1 in the horizontal plane.

[0068] Taking the swinging of the second wheel 31 as an example, in this embodiment, the horizontal adjustment mechanism 3 further includes a swinging motor (not shown in the figure), the output shaft of the swinging motor is connected to the input end of the swinging reducer, and the output end of the swinging reducer is connected to the second wheel 31, that is, the swinging motor drives the second wheel 31 to rotate via the swinging reducer. Figure 8 The orientation shown is for reference. When the second wheel portion 31 swings, the swing direction of the second wheel portion 31 is counterclockwise swinging with the third wheel portion as the center. In this case, since the first wheel portion 21 also swings counterclockwise during this swinging process, the first wheel portion 21 swings counterclockwise around the second rotation axis 23 (i.e., the first rotation direction mentioned above, and similarly, the second rotation direction is Figure 8 The first wheel portion 21 is then locked, and the swing motor drives the second wheel portion 31.

[0069] In this embodiment, the locking assembly 24 may include a fork 241 and a locking ring 242. The first end and the second end of the fork 241 may be clamped on the two bottom surfaces of the first wheel portion 21, respectively, and the fork 241 is connected to the locking ring 242. In this case, the fork 241 and the locking ring 242 can rotate around the second rotating shaft 23 together with the first wheel portion 21 and the first rotating shaft 22. On this basis, the locking assembly 24 also includes a locking rod 243 installed on the mounting platform 1, and the outer side of the locking rod 243 may be formed with an external thread, and the locking ring 242 may be sleeved on the outer side of the locking rod 243. At this time, the locking ring 242 can be locked by sleeved on the outer side of the locking rod 243 with a nut that matches the external thread of the locking rod 243.

[0070] Furthermore, if Fig.10 As shown, in this embodiment, a plurality of nuts can be screwed on the locking rod 243, and then the locking ring 242 is sleeved on the outer portion of the locking rod 243, and then the nuts are screwed to lock it, so as to achieve the locking of the first wheel portion 21 after rotating the first predetermined angle.

[0071] It should be noted that the first wheel portion 21 and the first rotating shaft 22 are connected to the second rotating shaft 23 through an intermediary portion, that is, the first wheel portion 21 can rotate around the second rotating shaft 23 relative to the intermediary portion, which prevents the second rotating shaft 23 from rotating due to the rotation of the first wheel portion 21 and the first rotating shaft 22, thereby avoiding changes in the height of the already adjusted installation platform 1.

[0072] like Fig.11 As shown, after the height of the mounting platform 1 and the position of the mounting platform 1 in the horizontal plane are adjusted, in order to fix the adjusted position of the mounting platform 1 relative to the ground, the mounting platform 1 also includes a plurality of supporting feet 4 arranged on the mounting platform 1, and the plurality of supporting feet 4 can be fixed to the ground to support the mounting platform 1.

[0073] In this embodiment, it has been mentioned in the above description that the lower end surface of the mounting platform 1 is approximately rectangular, so in this embodiment, four support feet 4 can be respectively provided at the four corners of the lower end surface of the mounting platform 1. According to the above description, it can be known that before the height of the mounting platform 1 and the position of the mounting platform 1 in the horizontal plane are adjusted, the state of the support feet 4 is a suspended state, so when the height of the mounting platform 1 and the position of the mounting platform 1 in the horizontal plane are adjusted, the process of the support feet 4 supporting the mounting platform 1 is actually the process of the support feet 4 descending, and the principle of this process will be described in detail below.

[0074] In fact, in this embodiment, the lowering method of the support foot 4 can be similar to the extension and retraction method of the second rotating shaft 23. Fig.11As shown, in this embodiment, the fixing portion 45 to be in contact with the ground is connected to the screw rod 42, the screw rod 42 and the fourth bevel gear 44 are matched by threads, the fourth bevel gear 44 and the third bevel gear 43 are meshed with each other, and the rotating shaft of the third bevel gear 43 is connected to the support adjustment portion 41. Preferably, the cross section of the support adjustment portion 41 is formed into a rectangle, so that the support adjustment portion 41 can be driven by a crank (by the operator's hand) or other rotating mechanism formed with a hole of the same shape. The transmission process of the movement is similar to the telescopic method of the second rotating shaft 23 above, and will not be repeated here.

[0075] In addition, the fixing portion 45 of the support foot 4 may also be formed with a plurality of threaded holes for installing anchor bolts together with the threaded holes on the ground to fix the support foot 4 and thereby achieve relative fixation of the position of the installation platform 1 .

[0076] See also Figures 1 to 11 This embodiment also provides a multifunctional welding machine, including the above-mentioned alignment platform, and also includes a driving device and a welding machine mechanism. The connection relationship and working principle of these structures will be specifically described below.

[0077] In this embodiment, the driving device is used to drive the welding mechanism, and both are arranged on the upper end surface of the alignment platform, and the alignment platform is used to carry the driving device and the welding mechanism. In this embodiment, the driving device can be a three-coordinate driving mechanism, which will be described in detail below.

[0078] In this embodiment, the driving device includes a Z-axis driving mechanism 5 connected to the welding machine mechanism and used to drive the welding machine mechanism to move along a first horizontal direction, a Y-axis driving mechanism 6 connected to the Z-axis driving mechanism 5 and used to drive the Z-axis driving mechanism 5 to move along a vertical direction, and an X-axis driving mechanism 7 connected to the Y-axis driving mechanism 6 and used to drive the Y-axis driving mechanism 6 to move along a second horizontal direction.

[0079] The first horizontal direction is perpendicular to the second horizontal direction, that is, the first horizontal direction and the second horizontal direction perpendicular to each other jointly define a horizontal plane. In this embodiment, the Y-axis driving mechanism 6 is taken as an example to specifically explain the working principles of the above driving mechanisms.

[0080] See also Figure 2 In this embodiment, the Y-axis drive mechanism 6 is driven by a screw nut mechanism. The Y-axis screw 61 is arranged in the main frame of the Y-axis drive mechanism 6, and the Y-axis servo motor 65 drives the Y-axis screw 61 to rotate via the Y-axis reducer. The Y-axis nut 62 is sleeved on the outer side of the Y-axis screw 61 and connected to the Z-axis drive mechanism 5. When the Y-axis servo motor 65 rotates, the Y-axis screw 61 can be driven to rotate, thereby driving the Y-axis nut 62 to rise and fall along the Y-axis screw 61, thereby driving the Z-axis drive mechanism 5 to rise and fall along the vertical direction.

[0081] In order to make the Z-axis drive mechanism 5 respond more quickly to the above-mentioned lifting motion, in this embodiment, the Z-axis drive mechanism 5 is also provided with a Z-axis slider, which cooperates with the Y-axis linear guide 64 provided on the outer side of the main frame of the Y-axis drive mechanism 6. Further, the Y-axis drive mechanism 6 also includes a counterweight 63 connected to the Z-axis drive mechanism 5 via a pulley assembly 66. The counterweight 63 balances the weight of the Z-axis drive mechanism 5 and the welding mechanism, further speeding up the response speed of the above-mentioned lifting motion, and also avoiding the Z-axis drive mechanism 5 and the welding mechanism from applying a tilting moment to the Y-axis linear guide 64 for a long time, thereby reducing the reliability of the cooperation.

[0082] In addition, the Y-axis drive mechanism 6 is also provided with Y-axis travel switches at the upper and lower ends of the main frame of the Y-axis drive mechanism 6, which are used to detect the movement position of the Y-axis nut 62 to prevent the Y-axis nut 62 from exceeding the travel of the Y-axis screw 61 and causing equipment collision.

[0083] Based on the features described above, see Figures 3 to 7 , the welding machine mechanism in this embodiment will be further described below. In this embodiment, the welding machine mechanism also includes a welding gun assembly, a B-axis driving assembly connected to the welding gun assembly, and a rotation driving assembly connected to the B-axis driving assembly. The B-axis driving assembly and the rotation driving assembly are connected through a first electric slip ring 811, the B-axis driving assembly is used to drive the welding gun assembly to move along the vertical direction and along the second horizontal direction, and the rotation driving assembly is used to drive the welding gun assembly and the B-axis driving assembly to rotate around the first horizontal direction.

[0084] In this embodiment, Figure 5 and Figure 6 As shown, the rotation drive assembly includes a rotation axis servo motor 818. The rotation axis servo motor 818 outputs torque through a reducer, and the output torque can be transmitted through a rotation axis transmission gear 817, so that the welding gun assembly and the B-axis drive assembly rotate around the first horizontal direction.

[0085] In this embodiment, the B-axis drive assembly includes a first transmission part and a second transmission part connected to each other, wherein the first transmission part is connected to the rotation drive assembly through a first electrical slip ring 811, so that the B-axis drive assembly and the welding gun assembly can still be powered while rotating. Figure 4As shown, the second transmission part of the B-axis drive assembly includes a B-axis lead screw 814, a B-axis nut 815, a B-axis linear guide 816 and a B-axis slider. The B-axis lead screw 814 is driven by the B-axis servo motor 813 through a reducer, and the B-axis nut 815 can be sleeved on the outer side of the B-axis lead screw 814. The two are matched by threads. When the B-axis lead screw 814 rotates, the B-axis nut 815 can move up and down along the B-axis lead screw 814. In this embodiment, the B-axis linear guide 816 is connected to the B-axis nut 815, so the B-axis linear guide 816 can be raised and lowered synchronously with the B-axis nut 815, and the B-axis slider cooperates with the B-axis linear guide 816 (that is, the B-axis slider can slide back and forth along the B-axis linear guide 816).

[0086] To further adjust the position of the B-axis slider, refer to Figure 7 In this embodiment, a locking nut 823 is further provided at one end of the B-axis slider in its sliding direction. The locking nut 823 can be screwed so as to abut against one end of the B-axis slider in its sliding direction, so that the other end of the B-axis slider is completely at one end of the B-axis linear guide 816, so that the B-axis slider is locked. Alternatively, the locking nut 823 can be screwed so that the sliding range of the B-axis slider is roughly limited to the area between the end of the locking nut 823 facing the B-axis slider and the end of the B-axis linear guide 816 to which this end points.

[0087] In this embodiment, the welding gun assembly is connected to the B-axis slider, so the movement of the welding gun assembly and the B-axis slider is also synchronized. Figure 7 The welding gun assembly in this embodiment includes a welding gun porcelain nozzle 825, a welding gun tungsten electrode 829 that penetrates the welding gun porcelain nozzle 825 and partially extends out of the welding gun porcelain nozzle 825, a gun core adjustment nut 828 that adjusts the extension length of the welding gun tungsten electrode 829, and a welding gun angle code disk 824 that adjusts the angle of the welding gun relative to the second horizontal direction. The welding gun porcelain nozzle 825 can rotate around the second horizontal direction, and this rotation angle is displayed by the welding gun angle code disk 824.

[0088] According to the features described above, it can be known that the welding gun porcelain nozzle 825 can realize: movement along the first horizontal direction (Z-axis drive mechanism 5), movement along the second horizontal direction (X-axis drive mechanism 7 and B-axis slider), movement along the vertical direction (Y-axis drive mechanism 6, B-axis lead screw 814 and B-axis nut 815), rotation around the first horizontal direction (rotation drive assembly) and rotation around the second horizontal direction (adjusted by the angle encoder). It can be seen that the welding gun porcelain nozzle 825 can realize five-axis linkage and can be fine-tuned in the vertical direction and the second horizontal direction, which greatly improves the flexibility of the welding gun porcelain nozzle 825.

[0089] See also Figure 6The welding gun assembly cooperates with the wire feeding assembly, that is, the wire feeding assembly supplies welding wire to the welding gun assembly. In this embodiment, the wire feeding assembly is arranged on the first transmission part of the B-axis driving assembly, and the wire feeding assembly includes: a welding wire reel 833 for winding and storing welding wire, a wire feeding pressure wheel 831 for conducting welding wire, and a wire feeding servo motor 83 and a wire feeding reducer 832 for driving the wire feeding pressure wheel 831 to rotate. Through the cooperation of various components in the wire feeding assembly, the welding wire is continuously delivered to the welding gun porcelain nozzle 825 to be melted by the welding gun tungsten electrode 829.

[0090] Based on the features described above, the driving device and the welding machine mechanism in this embodiment can be powered by the electric control cabinet 91. In addition, in this embodiment, the multifunctional welding machine is also provided with a control system, and the control system can also be provided in the electric control cabinet 91, and the display and setting of its parameters can be set through the display 92. In this embodiment, the above-mentioned movement processes of the alignment platform, the driving device and the welding machine mechanism can be controlled by the control system, which will be specifically described below.

[0091] In this embodiment, in the multifunctional welding machine, the purpose of the alignment platform is to make the position of the welding gun assembly relatively vertical and horizontal with the position of the workpiece to be welded, that is, to achieve horizontal alignment and vertical alignment. In this embodiment, since the vertical adjustment mechanism 2 is provided with a first wheel portion 21, in order to achieve the adjustment of the welding gun assembly, the vertical adjustment mechanism 2 is arranged on the side of the mounting platform 1 where the welding gun assembly is located.

[0092] like Figure 7 As shown, the welding gun assembly is provided with a position sensor 821, which obtains the position signal of the workpiece to be welded, and then transmits the position signal to the control system, which controls the drive motors of the vertical adjustment mechanism 2 and the horizontal adjustment mechanism 3 according to the position signal, and successively performs vertical alignment and horizontal alignment, thereby realizing automatic alignment. The position sensor 821 can adopt a high-precision displacement sensor, so that the above-mentioned automatic alignment can achieve a control accuracy of ±0.5mm.

[0093] Still see Figure 7 In this embodiment, a position detection camera 822 can also be provided below the welding gun assembly, and the position detection camera 822 is installed below the welding gun assembly through an angle adjustment bracket 827 (the angle of the position detection camera 822 relative to the second horizontal direction can be adjusted). The position detection camera 822 can identify the image information of the workpiece to be welded and generate a welding trajectory signal. The welding trajectory signal is processed by the intelligent visual weld detection and positioning module of the control system to generate a welding trajectory. Thus, the multifunctional welding machine can automatically perform welding according to the welding trajectory through the control system, without the need for CAD drawing or manual setting, saving manpower and improving welding efficiency.

[0094] like Figure 4As shown, in this embodiment, a welding quality detection component is also installed on the B-axis slider, and the welding quality detection component can be a welding quality detection camera 826. The welding quality detection camera 826 can compare the current fish scale pattern welding with the data in the database online and in real time when the multifunctional welding machine is performing welding operations. When welding defects are found, a welding quality signal is sent to the control system, and the control system immediately records the current welding time, angle (the angle of the welding gun assembly relative to the first horizontal direction, which will be described in detail below) and welding position, and generates a report for the operator to repair later and the quality management personnel to check later. This effectively improves the management of welding quality.

[0095] The encoder used in the welding machine in the prior art is used to position the angle. Usually, after rotating 65536 times in one direction, the encoder will have an overtravel alarm. It is necessary to perform a return to origin operation or manually clear the encoder. Figure 6 As shown, in this embodiment, a tilt sensor 812 for obtaining the angle signal of the welding gun assembly relative to the first horizontal direction is provided on the first transmission part of the B-axis drive assembly, and the angle signal is transmitted to the control system to realize the above-mentioned recording, and the welding trajectory obtained by the above-mentioned control system is fed back in real time. Therefore, the welding gun assembly in this embodiment can realize infinite rotation and, since the angle signal obtained by the tilt sensor 812 is simpler than that of the encoder, the calculation burden of the control system is also reduced at the same time. In addition, the tilt sensor 812 in this embodiment can be a high-precision angle sensor (error accuracy 0.01°) to ensure the accuracy of the angle signal.

[0096] In this embodiment, the above-mentioned welding quality signal, angle signal and welding trajectory signal are all transmitted to the control system through the second electric slip ring 84 spaced apart from the first electric slip ring 811. Since the second electric slip ring 84 is spaced apart from the first electric slip ring 811, the process of signal transmission is not disturbed, thereby ensuring the accuracy of signal feedback. The second electric slip ring 84 is arranged in the rotary drive assembly, that is, coaxially arranged with the first electric slip ring 811. In addition, the rotary drive assembly is also provided with a water-gas slip ring 85 for conveying water or shielding gas to the welding gun assembly, and the water-gas slip ring 85 is also coaxially arranged with the first electric slip ring 811 and the second electric slip ring 84.

[0097] In this embodiment, the control system also includes an arc voltage tracking module, which can collect arc voltage signals, and monitor and stabilize the pulse arc voltage in real time through feedback of the arc voltage signals. The operator can set the welding distance between the welding gun tungsten electrode 829 and the workpiece to be welded according to the process requirements (setting range 0.5-1.5mm). A closer welding distance can ensure a deeper welding penetration, which can be applied to the welding of products with strict requirements on welding penetration, such as pressure vessels, oil pipelines, nuclear power plant shell and tube condensers, shell and tube titanium alloy heat exchangers, etc.

[0098] The above description is only a preferred embodiment of the present application, and does not limit the protection scope of the present application. All equivalent structural changes made by using the contents of the present application specification and drawings under the innovative concept of the present application, or direct / indirect application in other related technical fields are included in the protection scope of the present application.

Claims

1. An alignment platform, characterized in that: The alignment platform comprises: Installation platform; A vertical adjustment mechanism, disposed on the mounting platform, for adjusting the height of a portion of the mounting platform where the vertical adjustment mechanism is disposed relative to a horizontal plane; A horizontal adjustment mechanism, disposed on the mounting platform, the horizontal adjustment mechanism being capable of cooperating with the vertical adjustment mechanism to adjust the position of the mounting platform on a horizontal plane; The vertical adjustment mechanism comprises: a first wheel portion, the first wheel portion being rotatable about a first rotation axis, the first wheel portion and the first rotation axis being mounted on the mounting platform via a second rotation axis and being rotatable about the second rotation axis, and the second rotation axis being retractable relative to the mounting platform; a locking assembly, used to lock the rotational movement of the first wheel portion around the second rotational axis after the first wheel portion rotates around the second rotational axis by a predetermined angle; The horizontal adjustment mechanism includes a second wheel portion and a third wheel portion arranged side by side; after the height adjustment of the mounting platform is completed: The first wheel portion rotates around the second rotation axis along the first rotation direction by a predetermined angle and is locked by the locking assembly, and the mounting platform swings around the third wheel portion via the first wheel portion and the second wheel portion to adjust the position of the mounting platform on the horizontal plane; or The first wheel portion rotates around the second rotation axis along the second rotation direction by a predetermined angle and is locked by the locking assembly, and the mounting platform swings around the second wheel portion via the first wheel portion and the third wheel portion to adjust the position of the mounting platform on the horizontal plane; The installation platform comprises: a plurality of supporting feet arranged on the installation platform, the plurality of supporting feet are used to be fixed to the ground to support the installation platform; the second wheel part and the third wheel part are both arranged in the space between two supporting feet facing each other.

2. A multifunctional welding machine, characterized in that: Including the alignment platform according to claim 1, the multifunctional welding machine also includes: A driving device and a welding mechanism, wherein the driving device is used to drive the welding mechanism, the alignment platform is used to carry the driving device and the welding mechanism, and the welding mechanism is arranged on one side of the vertical adjustment mechanism of the alignment platform.

3. The multifunctional welding machine according to claim 2, characterized in that: The driving device comprises: A Z-axis driving mechanism, connected to the welding mechanism and used to drive the welding mechanism to move along a first horizontal direction; A Y-axis driving mechanism connected to the Z-axis driving mechanism and used to drive the Z-axis driving mechanism to move in a vertical direction; the Y-axis driving mechanism also includes a counterweight connected to the Z-axis driving mechanism via a pulley assembly, so that the weight of the Z-axis driving mechanism and the welding machine mechanism is balanced; An X-axis driving mechanism, connected to the Y-axis driving mechanism and used to drive the Y-axis driving mechanism to move along a second horizontal direction; The first horizontal direction is perpendicular to the second horizontal direction.

4. The multifunctional welding machine according to claim 3, characterized in that: The welding machine mechanism also includes: Welding gun components; A B-axis driving assembly, comprising a first transmission part and a second transmission part connected to each other, wherein the second transmission part is connected to the welding gun assembly, and the second transmission part is used to drive the welding gun assembly to move in a vertical direction and in a second horizontal direction; The rotation driving assembly is rotationally connected to the first transmission part and is used to drive the first transmission part to rotate around the first horizontal direction.

5. The multifunctional welding machine according to claim 4, characterized in that: The multifunctional welding machine also includes: A position sensor, disposed on the welding gun assembly, for collecting a position signal of the welding gun assembly; A position detection component, disposed on the second transmission part and used to obtain a welding trajectory signal; A control system is arranged on the alignment platform, and is used to receive the position signal and control the alignment platform to adjust the height of the welding gun assembly and the distance between the welding gun assembly and the workpiece to be welded, and to generate a welding trajectory of the welding gun assembly according to the welding trajectory signal.

6. The multifunctional welding machine according to claim 5, characterized in that: The multifunctional welding machine also includes: A welding quality detection component, which is arranged on the welding gun assembly and is used to detect welding defects; An inclination sensor, disposed on the first transmission part and used to obtain an angle signal of the welding gun assembly relative to the first horizontal direction; The welding quality detection component can send a welding quality signal to the control system when a welding defect is detected. After receiving the welding quality signal, the control system records the current time, the angle signal and the welding position.

7. The multifunctional welding machine according to claim 6, characterized in that: The rotary drive assembly is connected to the first transmission part through a first electric slip ring, the rotary drive assembly further comprises a second electric slip ring spaced apart from the first electric slip ring, and the control system receives a welding quality signal, an angle signal and a welding trajectory signal through the second electric slip ring; The control system further comprises an arc voltage tracking module for collecting arc voltage signals, and the control system monitors and stabilizes the pulse arc voltage according to the arc voltage signals.

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