An intelligent welding device for machining lathe castings

Abstract

The present invention relates to the technical field of welding, and particularly to an intelligent welding device for machining lathe castings. Its technical solution includes: a welding assembly, which includes a box body, an extrusion rod, an extrusion column, a spring piece, a positioning column, a sliding column, a curved rod, a welding torch and a fluctuation assembly. The extrusion rod is slidably connected inside the box body. The positioning column is fixedly installed inside the box body. The spring piece is fixedly installed in the middle of the positioning column. The extrusion rod penetrates through the spring piece, and the extrusion column is fixedly installed on the rod body of the extrusion rod. In the present invention, the arc of the tubular casting is determined by two extrusion balls and the welding torch. The movement of the extrusion balls changes the bending arc of the spring piece, so that the arc of the spring piece is the same as that of the tubular casting. Cooperating with the fluctuation assembly, the sliding column reciprocates along the spring piece, so that the welding torch moves in an arc. When the welding torch welds the convex or concave casting, the distance between the welding torch and the pipe casting remains unchanged all the time, avoiding missed welding.

Description

Technical Field

[0001] The present invention relates to the field of welding technology, and particularly to an intelligent welding device for machining lathe castings. Background Art

[0002] Lathe castings refer to objects with a certain shape, size, and performance formed through machining on a lathe. Lathe castings are connected together by welding. Welding, also known as fusion welding, is a manufacturing process and technology that joins metals or other thermoplastic materials such as plastics by heating, high temperature, or high pressure. When welding lathe castings, it is necessary to understand the performance, chemical composition, and physical properties of the castings in order to select appropriate welding materials and processes. During the welding process, it is also necessary to master appropriate temperature and environmental conditions to ensure the welding strength and quality.

[0003] In the patent application No. CN202311471939.1, a welding device for machining metal castings is proposed. The entire placement plate can be moved driven by a motor, replacing the manual welding method. The electric control can improve the flatness and stability of the welding by the welding machine, thereby improving the welding effect. The limiting structure can adjust the position to adapt to metal castings of different sizes, and has a wide range of applications.

[0004] However, the movement of this casting welding device is in the horizontal and vertical directions. When welding concave or convex castings, the welding machine of this welding device moves in a straight line, while the casting has a curvature, and the welding machine does not adhere to the casting, resulting in missed welding. Summary of the Invention

[0005] The object of the present invention is to address the problem of missed welding by the welding machine when welding concave or convex castings in the background art, and to propose an intelligent welding device for machining lathe castings.

[0006] The technical solution of the present invention: An intelligent welding device for machining lathe castings, comprising:

[0007] A heightening platform, on the top of which a workbench is fixedly installed, and on the side of which a slide rail is fixedly installed, and a manipulator is slidably connected to the top of the slide rail;

[0008] A welding assembly, including a box body, an extrusion rod, an extrusion column, a spring piece, a positioning column, a sliding column, a curved rod, a welding torch, and a fluctuation assembly. The extrusion rod is slidably connected inside the box body, the positioning column is fixedly installed inside the box body, the spring piece is fixedly installed in the middle of the positioning column, the extrusion rod penetrates through the spring piece, the extrusion column is fixedly installed on the rod body of the extrusion rod, the extrusion column abuts against the side of the spring piece, the sliding column is slidably connected to the side of the spring piece, the curved rod is fixedly installed at the end of the sliding column, the welding torch is fixedly installed at the end of the curved rod, and the fluctuation assembly is arranged on the rod body of the curved rod;

[0009] The conversion assembly comprises a conversion electric push rod, a built-in plate, a hook and an extension rod, wherein the end of the conversion electric push rod is fixedly mounted on the inner wall of the box body, the end of the conversion electric push rod is fixedly mounted on the hook, the end of the extrusion rod is fixedly connected to the extension rod, the end of the extension rod is fixedly mounted on the built-in plate, and the built-in plate is arranged inside the hook;

[0010] The end of the manipulator is rotatably connected to the box body, a tubular casting is placed at the top center of the elevated platform, and two symmetrical alignment components are arranged at the top of the elevated platform at both ends of the casting.

[0011] Optionally, two spring sheets are provided and are equidistantly distributed along a straight line inside the box body, and two adjacent spring sheets form a track. The sliding column slides in the track, and the positioning column is fixedly installed on the side of the spring sheet away from the sliding column. The spring sheet is provided with a make way groove for the extrusion rod.

[0012] Optionally, the spring sheet adopts an arc-shaped structure, two extrusion rods are provided and symmetrically arranged inside the box body, the ends of the two extrusion rods are fixedly installed with extrusion balls, the curved rod adopts an L-shaped structure, the welding gun and the two extrusion balls are on the same plane, and the arc formed by the two extrusion balls and the end of the welding gun has the same curvature as the spring sheet.

[0013] Optionally, the wave assembly includes a traction sleeve, a docking plate, a traction frame, a rotating wheel and an insertion rod. The top of the rotating wheel is rotatably connected to the box body via a rotating shaft, the insertion rod is fixedly installed on the bottom of the rotating wheel, the traction sleeve is slidably connected at the rod body of the curved rod, the traction frame is fixedly installed on the top of the traction sleeve, the inner wall of the traction frame is slidably connected to the insertion rod, and the rotating wheel is fixedly installed with a motor via a rotating shaft.

[0014] Optionally, a plurality of traction sleeves are provided and are equidistantly distributed in a straight line along the curved rod, a same docking plate is fixedly mounted on the sides of the plurality of traction sleeves, and the traction frame adopts a hollow capsule-shaped structure.

[0015] Optionally, the hook includes a conversion block and a pull plate, the conversion block adopts a U-shaped structure, and the end of the conversion block is fixedly installed with two symmetrically arranged pull plates, there is a gap between the two pull plates, the extension rod passes through the gap between the two pull plates, and the built-in plate is located between the conversion block and the pull plate.

[0016] Optionally, there is a gap between the built-in plate and the conversion block, and when the conversion electric push rod is fully retracted, the pull plate contacts the built-in plate, and the spring sheet is in a straight state.

[0017] Optionally, the alignment component includes a turntable, an insertion tube, a first electric push rod, an extension rod, a linkage rod, and a jig table. Symmetrically arranged jig tables are fixedly installed at the top of the heightening table. The side of the jig table is rotatably connected to the turntable. The end of the insertion tube is fixedly installed at the center of the turntable. The inside of the insertion tube is hollow. A first electric push rod is fixedly installed at the center of the turntable and inside the insertion tube. The end of the insertion tube is rotatably connected to the extension rod. The end of the first electric push rod is hinged to the extension rod through the linkage rod. The alignment component is inserted into the inside of the tubular casting.

[0018] Optionally, a roller is rotatably connected to the end of the extension rod. The roller contacts the inner wall of the tubular casting. A plurality of extension rods are provided and are annularly and equiangularly distributed at the end of the insertion tube. A pressure switch is fixedly installed at the end of the extension rod at the bottommost position. The pressure switch is electrically connected to the first electric push rod.

[0019] Optionally, a second electric push rod is fixedly installed on the side of the turntable. A clamping plate is fixedly installed at the end of the second electric push rod. The insertion tube passes through the center of the clamping plate. The side of the clamping plate contacts the tubular casting.

[0020] Compared with the prior art, the present invention has the following beneficial technical effects:

[0021] In the present invention, the extrusion ball contacts the arc surface of the tubular casting and generates displacement. The extrusion ball uses the extrusion rod and the extrusion column to push the end position of the spring piece. Since the middle part of the spring piece is fixed, the end of the spring piece is deformed and bent under force. The two extrusion balls and the welding torch determine the radian of the tubular casting. Therefore, the radian after the spring piece is bent is the same as the radian of the tubular casting. Cooperating with the fluctuation component, the sliding column reciprocates along the spring piece, so that the welding torch moves in an arc. The arc movement track of the welding torch is the same as the arc radian of the pipe casting. Therefore, when the welding torch welds the convex or concave casting, the distance between the welding torch and the pipe casting is always kept unchanged, avoiding missed welding.

[0022] Furthermore, by the conversion electric push rod contracting and driving the conversion block and the pull plate to move, so that the built-in plate and the extension rod drive the extrusion rod to move. The extrusion rod uses the extrusion column to pull the end of the spring piece. Since the middle part of the spring piece is fixed by the positioning column, the radian of the spring piece changes. When the conversion electric push rod is fully contracted, the spring piece is in a straight state. The fluctuation component drives the sliding column to move along the spring piece. Therefore, the movement track of the welding torch is a straight line, converting the movement track of the welding torch from an arc movement track to a straight line movement track.

[0023] Furthermore, the first electric push rod contracts and the linkage rod is used to expand multiple extension rods. The multiple extension rods expand to support the tubular casting. The insertion tube is located on the axis of the supported tubular casting. Since the two alignment components are symmetrically arranged, the two insertion tubes are located on the same straight line. The two alignment components respectively support the two tubular castings, and the axes of the two tubular castings are aligned, so that the two tubular castings are aligned for welding, thus achieving the effect of aligning the pipe castings with different diameters.

[0024] Furthermore, when the tubular casting is a straight pipe, the turntable rotates to rotate the pipe, and the welding torch reciprocates linearly, so as to form a wave-shaped weld on the outer wall of the pipe casting, improving the welding strength; when the tubular casting is a tubular with uneven surface, the turntable rotates to rotate the pipe, and the welding torch reciprocates in a curve, forming a wave-shaped weld on the outer wall of the pipe casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The overall structural schematic diagram of an embodiment of the present invention is given;

[0026] Figure 2 The structural schematic diagram of the welding torch of an embodiment of the present invention is given;

[0027] Figure 3 The semi-sectional schematic diagram of the box body structure of an embodiment of the present invention is given;

[0028] Figure 4 The structural schematic diagram of the insertion rod of an embodiment of the present invention is given;

[0029] Figure 5 The schematic diagram of the concave state of the spring piece structure of an embodiment of the present invention is given;

[0030] Figure 6 The schematic diagram of the convex state of the spring piece structure of an embodiment of the present invention is given;

[0031] Figure 7 The structural schematic diagram of the extension rod of an embodiment of the present invention is given;

[0032] Figure 8 For Figure 7 the enlarged schematic diagram of the roller structure of part A of

[0033] Reference Numerals: 1, raising platform; 2, workbench; 3, slide rail; 4, manipulator; 5, welding assembly; 51, box body; 52, extrusion rod; 53, extrusion ball; 54, extrusion column; 55, spring piece; 56, relief groove; 57, positioning column; 58, slide column; 59, curved rod; 510, welding torch; 511, traction sleeve; 512, docking plate; 513, traction frame; 514, runner; 515, insertion rod; 6, alignment assembly; 61, turntable; 62, insertion tube; 63, first electric push rod; 64, extension rod; 65, roller; 66, linkage rod; 67, pressure switch; 68, second electric push rod; 69, clamping plate; 610, fixture table; 7, conversion assembly; 71, conversion electric push rod; 72, conversion block; 73, built-in plate; 74, pulling plate; 75, extension rod. Detailed Embodiment

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present invention.

[0035] Generally, the components of the embodiments of the present invention described and shown in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents the selected embodiments of the present invention.

[0036] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0037] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention 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 a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] Example 1

[0040] This embodiment provides an intelligent welding device for machining lathe castings. As Figure 1 shown, it includes a heightening platform 1. A workbench 2 is fixedly installed on the top of the heightening platform 1. A slide rail 3 is fixedly installed on the side of the heightening platform 1. A manipulator 4 is slidably connected to the top of the slide rail 3. A tubular casting is placed at the center of the top of the heightening platform 1. A welding assembly 5 is arranged at the end of the manipulator 4. The manipulator 4 slides on the slide rail 3 to adjust its position, and the manipulator 4 welds the tubular casting through the welding assembly 5;

[0041] As Figure 2 and 4 shown, the welding assembly 5 includes a box body 51, an extrusion rod 52, an extrusion column 54, a spring piece 55, a positioning column 57, a sliding column 58, a curved rod 59, a welding torch 510 and a fluctuation assembly. The end of the manipulator 4 is rotatably connected to the box body 51. The extrusion rod 52 is slidably connected inside the box body 51. As Figure 3 shown, a positioning column 57 is fixedly installed inside the box body 51. A spring piece 55 is fixedly installed in the middle of the positioning column 57. The extrusion rod 52 passes through the spring piece 55. The spring piece 55 adopts an arc structure. There are two spring pieces 55, and they are equidistantly distributed along a straight line inside the box body 51. Adjacent two spring pieces 55 form a track. The sliding column 58 slides in the track. The end of the sliding column 58 is fixedly installed with a curved rod 59. The end of the curved rod 59 is fixedly installed with a welding torch 510.

[0042] The sliding column 58 slides along the track and drives the welding torch 510 to move through the curved rod 59. Therefore, the welding torch 510 performs an arc movement, and the radian of the arc is the same as the radian of the track. There are two extrusion rods 52, and they are symmetrically arranged inside the box body 51. Extrusion balls 53 are fixedly installed at the ends of the two extrusion rods 52. Yielding grooves 56 for yielding to the extrusion rod 52 are formed on the spring piece 55.

[0043] As Figure 5 and 6 shown, an extrusion column 54 is fixedly installed on the rod body of the extrusion rod 52. The extrusion column 54 abuts against the side of the spring piece 55. The side of the spring piece 55 is slidably connected to the sliding column 58. By the manipulator 4, the box body 51 is moved towards the tubular casting. The extrusion ball 53 contacts the tubular casting and is extruded. The extrusion ball 53 moves towards the direction of the spring piece 55. The extrusion ball 53 uses the extrusion column 54 to push the spring piece 55. Since the middle of the spring piece 55 is fixed on the box body 51 by the positioning column 57, when the extrusion column 54 pushes the spring piece 55, the positions of the two ends of the spring piece 55 move, so that the spring piece 55 bends.

[0044] As Figure 4As shown, the curved lever 59 adopts an L-shaped structure. Through the L-shaped structure design of the curved lever 59, the welding torch 510 and the two extrusion balls 53 are in the same plane. Since three points determine an arc in the same plane, an arc is determined by the two extrusion balls 53 and the end of the welding torch 510, and the arc determined by the two extrusion balls 53 and the end of the welding torch 510 has the same radian as the spring piece 55.

[0045] When the extrusion ball 53 extends and is extruded by the tubular casting, and when the welding torch 510 contacts the tubular casting, the bent radian of the spring piece 55 is the same as the radian of the tubular casting. At this time, the sliding column 58 slides on the side of the spring piece 55, and the sliding column 58 drives the curved lever 59 to move, so that the welding torch 510 moves. At this time, the movement track of the welding torch 510 is arc-shaped, and the radian of this arc is the same as the radian of the tubular casting.

[0046] As Figure 5 shown, initially, the opening of the spring piece 55 faces the extrusion ball 53. When the radian of the tubular casting is convex, the spring piece 55 bends to form an arc surface with the same radian as the tubular casting. When the radian of the tubular casting is concave, the extrusion column 54 pushes the end of the spring piece 55 to change the opening direction.

[0047] As Figure 4 shown, a fluctuation assembly is arranged on the rod body of the curved lever 59. The fluctuation assembly includes a traction sleeve 511, a docking plate 512, a traction frame 513, a runner 514 and a plug rod 515. The top of the runner 514 is rotatably connected to the box body 51 through a rotating shaft. The bottom of the runner 514 is fixedly installed with the plug rod 515. The traction sleeve 511 is slidably connected to the rod body of the curved lever 59. The top of the traction sleeve 511 is fixedly installed with the traction frame 513. The inner wall of the traction frame 513 is slidably connected to the plug rod 515. The runner 514 is fixedly installed with a motor through the rotating shaft. The motor drives the runner 514 to rotate, and the runner 514 uses the traction frame 513 to make the traction frame 513 perform a reciprocating motion, that is, the traction sleeve 511 performs a reciprocating motion, so that the curved lever 59 and the docking plate 512 at its end perform a reciprocating motion.

[0048] A plurality of traction sleeves 511 are provided and are linearly equidistantly distributed along the curved lever 59. The same docking plate 512 is fixedly installed on the sides of the plurality of traction sleeves 511. The traction frame 513 adopts a hollow capsule-like structure.

[0049] The runner 514 rotates and drives the traction frame 513 to reciprocate by using the plug rod 515. The traction frame 513 drives the traction sleeve 511 to move, so that the traction sleeve 511 performs a reciprocating motion, that is, the traction sleeve 511 drives the curved lever 59 to move, so that the curved lever 59 drives the sliding column 58 to move in the track formed by the two spring pieces 55. At this time, the sliding column 58 and the welding torch 510 form an arc-shaped movement track.

[0050] In this embodiment, the extrusion ball 53 contacts the arc surface of the tubular casting and generates displacement. The extrusion ball 53 uses the extrusion rod 52 and the extrusion column 54 to push the end position of the spring piece 55. Since the middle part of the spring piece 55 is fixed, the end of the spring piece 55 is deformed and bent under force. The two extrusion balls 53 and the welding torch 510 determine the radian of the tubular casting. Therefore, the radian of the spring piece 55 after bending is the same as that of the tubular casting. Cooperating with the fluctuation component, the sliding column 58 reciprocates along the spring piece 55, so that the welding torch 510 moves in an arc, and the arc movement track of the welding torch 510 is the same as the arc radian of the pipe casting surface.

[0051] Embodiment 2

[0052] Based on Embodiment 1, this embodiment proposes an intelligent welding device for processing lathe castings, as Figure 5 shown. A conversion component 7 is arranged inside the box body 51. The conversion component 7 includes a conversion electric push rod 71, an inner plate 73, a hook claw and an extension rod 75. The end of the conversion electric push rod 71 is fixedly installed on the inner wall of the box body 51. A hook claw is fixedly installed at the end of the conversion electric push rod 71. The end of the extrusion rod 52 is fixedly connected to the extension rod 75. The end of the extension rod 75 is fixedly installed with the inner plate 73, and the inner plate 73 is arranged inside the hook claw.

[0053] As Figure 6 shown, the hook claw includes a conversion block 72 and a pulling plate 74. The conversion block 72 adopts a U-shaped structure. Two symmetrically arranged pulling plates 74 are fixedly installed at the end of the conversion block 72. There is a spacing between the two pulling plates 74. The extension rod 75 passes through the spacing between the two pulling plates 74, and the inner plate 73 is located between the conversion block 72 and the pulling plate 74.

[0054] When the conversion electric push rod 71 contracts, it uses the conversion block 72 and the pulling plate 74 to hook the inner plate 73. The inner plate 73 drives the extrusion rod 52 to move through the extension rod 75. The extrusion rod 52 displaces and drives the spring piece 55 to bend through the extrusion column 54, so that the spring piece 55 changes from the bent state to the flat line state.

[0055] When the conversion electric push rod 71 is fully contracted, the pulling plate 74 contacts the inner plate 73, and the spring piece 55 is in a straight state. When performing axial welding on the pipe casting, the welded seam is a straight line. At this time, the conversion electric push rod 71 is fully contracted, and the spring piece 55 is in a straight state. The fluctuation component drives the sliding column 58 to move along the spring piece 55. Therefore, the movement track of the welding torch 510 is a straight line.

[0056] As Figure 5As shown, there is a gap between the built-in plate 73 and the conversion block 72. When the squeezing ball 53 contacts the tubular workpiece and generates displacement, the squeezing ball 53 uses the squeezing rod 52 to drive the extension rod 75 to move, and the extension rod 75 drives the built-in plate 73 to move. Since there is a gap between the built-in plate 73 and the conversion block 72, the built-in plate 73 will not be stuck by the conversion block 72.

[0057] In this embodiment, the conversion push rod 71 is contracted and drives the conversion block 72 and the pull plate 74 to move, so that the built-in plate 73 and the extension rod 75 drive the extrusion rod 52 to move, and the extrusion rod 52 uses the extrusion column 54 to pull the end of the spring sheet 55. Since the middle part of the spring sheet 55 is fixed by the positioning column 57, the curvature of the spring sheet 55 changes. When the conversion push rod 71 is fully contracted, the spring sheet 55 is in a straight state, and the wave assembly drives the sliding column 58 to move along the spring sheet 55. Therefore, the moving trajectory of the welding gun 510 is a straight line, and the welding gun 510 is converted from an arc motion trajectory to a straight motion trajectory.

[0058] Example 3

[0059] Based on the above-mentioned embodiment 1 or embodiment 2, this embodiment proposes an intelligent welding device for lathe casting processing, such as Figure 7 As shown, the top of the raising platform 1 is provided with two symmetrical alignment components 6 at both ends of the casting, and the alignment components 6 include a turntable 61, a plug 62, a first electric push rod 63, an extension rod 64, a linkage rod 66 and a fixture table 610. The top of the raising platform 1 is fixedly installed with a symmetrically arranged fixture table 610, and the side of the fixture table 610 is rotatably connected to the turntable 61. The end of the plug 62 is fixedly installed at the center of the turntable 61. The inside of the plug 62 is hollow. The first electric push rod 63 is fixedly installed at the center of the turntable 61 and inside the plug 62. The end of the plug 62 is rotatably connected to the extension rod 64. The end of the first electric push rod 63 is hinged to the extension rod 64 through the linkage rod 66, and the alignment component 6 is inserted into the tubular casting.

[0060] The first electric push rod 63 is contracted and the extension rod 64 is propped up by the linkage rod 66. The ends of the multiple extension rods 64 are pressed against the inner wall of the tubular casting to lift up the tubular casting. At this time, the insert 62 is located on the larger axis of the tubular casting. Since the two alignment components 6 are symmetrically arranged, the two inserts 62 are located on the same straight line. The two alignment components 6 respectively prop up the two tubular castings, and the axis lines of the two tubular castings are aligned, so that the two tubular castings are aligned for welding.

[0061] like Figure 8As shown, a roller 65 is rotatably connected to the end of the extension rod 64. The roller 65 contacts the inner wall of the tubular casting. A plurality of extension rods 64 are provided and are evenly distributed at equal angles in a ring at the end of the insertion tube 62. A pressure switch 67 is fixedly installed at the end of the extension rod 64 at the lowest position. The pressure switch 67 is electrically connected to the first electric push rod 63. The pressure switch 67 senses the force on the extension rod 64 at the lowest position. When the extension rod 64 at the lowest position is stressed, it indicates that the tubular casting has been propped up, so as to adapt to the sizes of pipe castings with different diameters.

[0062] As Figure 7 shown, a second electric push rod 68 is fixedly installed on the side of the turntable 61. A clamping plate 69 is fixedly installed at the end of the second electric push rod 68. The insertion tube 62 passes through the center of the clamping plate 69. The side of the clamping plate 69 contacts the tubular casting. By extending the second electric push rod 68, the clamping plate 69 is moved, and the end of the pipe casting is clamped by the clamping plate 69. When the tubular casting is a straight pipe, the turntable 61 rotates to rotate the pipe, cooperating with the linear reciprocating motion of the welding torch 510, so as to form a wave-shaped weld on the outer wall of the pipe casting and improve the welding strength; when the tubular casting is an uneven tube, the turntable 61 rotates to rotate the pipe, cooperating with the curved reciprocating motion of the welding torch 510, and a wave-shaped weld is formed on the outer wall of the pipe casting.

[0063] In this embodiment, the first electric push rod 63 contracts and the plurality of extension rods 64 are unfolded by using the linkage rod 66. The plurality of extension rods 64 are unfolded to prop up the tubular casting. The insertion tube 62 is located on the axis of the propped-up tubular casting. Since the two alignment components 6 are symmetrically arranged, the two insertion tubes 62 are located on the same straight line. The two alignment components 6 respectively prop up two tubular castings, and the axis lines of the two tubular castings are aligned, so that the two tubular castings are aligned for welding, thereby propping up and aligning the tubular castings with different diameters.

[0064] The above specific embodiments are only several alternative embodiments of the present invention. Based on the technical solution of the present invention and the relevant revelations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. An intelligent welding device for machining lathe castings, characterized in that, Including: A raising platform (1), on the top of the raising platform (1), a workbench (2) is fixedly installed, on the side of the raising platform (1), a slide rail (3) is fixedly installed, and on the top of the slide rail (3), a manipulator (4) is slidably connected; A welding assembly (5), including a box body (51), a pressing rod (52), a pressing column (54), a spring piece (55), a positioning column (57), a sliding column (58), a curved rod (59), a welding torch (510) and a fluctuation assembly. Inside the box body (51), the pressing rod (52) is slidably connected. Inside the box body (51), the positioning column (57) is fixedly installed. In the middle of the positioning column (57), the spring piece (55) is fixedly installed. The pressing rod (52) penetrates through the spring piece (55). On the rod body of the pressing rod (52), the pressing column (54) is fixedly installed. The pressing column (54) abuts against the side of the spring piece (55). On the side of the spring piece (55), the sliding column (58) is slidably connected. At the end of the sliding column (58), the curved rod (59) is fixedly installed. At the end of the curved rod (59), the welding torch (510) is fixedly installed. On the rod body of the curved rod (59), the fluctuation assembly is arranged; A conversion assembly (7), including a conversion electric push rod (71), an inner plate (73), a hook claw and an extension rod (75). At the end of the conversion electric push rod (71), it is fixedly installed on the inner wall of the box body (51). At the end of the conversion electric push rod (71), the hook claw is fixedly installed. The end of the pressing rod (52) is fixedly connected to the extension rod (75). At the end of the extension rod (75), the inner plate (73) is fixedly installed. The inner plate (73) is arranged inside the hook claw; The end of the manipulator (4) is rotatably connected to the box body (51). At the center of the top of the raising platform (1), a tubular casting is placed. At both ends of the casting on the top of the raising platform (1), two symmetrical alignment assemblies (6) are arranged; Two spring pieces (55) are provided and are equidistantly distributed in a straight line inside the box body (51). An adjacent pair of spring pieces (55) forms a track. The sliding column (58) slides in the track. The positioning column (57) is fixedly installed on the side of the spring piece (55) away from the sliding column (58). On the spring piece (55), a relief groove (56) for making way for the pressing rod (52) is provided; The spring piece (55) adopts an arc structure. Two pressing rods (52) are provided and are symmetrically arranged inside the box body (51). At the ends of both pressing rods (52), pressing balls (53) are fixedly installed. The curved rod (59) adopts an L-shaped structure. The welding torch (510) and the two pressing balls (53) are in the same plane. The arc formed by the two pressing balls (53) and the end of the welding torch (510) is the same as the radian of the spring piece (55); The fluctuation component includes a traction sleeve (511), a docking plate (512), a traction frame (513), a runner (514) and a plug rod (515). The top of the runner (514) is rotationally connected to the box body (51) through a rotating shaft. The bottom of the runner (514) is fixedly installed with a plug rod (515). The rod body of the curved rod (59) is slidably connected to the traction sleeve (511). The top of the traction sleeve (511) is fixedly installed with a traction frame (513). The inner wall of the traction frame (513) is slidably connected to the plug rod (515). The runner (514) is fixedly installed with a motor through a rotating shaft.

2. The intelligent welding equipment for machining lathe castings according to claim 1, wherein: A plurality of the traction sleeves (511) are provided and are linearly and equidistantly distributed along the curved rod (59). The same docking plate (512) is fixedly installed on the side parts of the plurality of traction sleeves (511). The traction frame (513) adopts a hollow capsule-like structure.

3. An intelligent welding device for machining lathe castings according to claim 1, characterized in that: The hook claw includes a conversion block (72) and a pull plate (74). The conversion block (72) adopts a U-shaped structure. Two symmetrically arranged pull plates (74) are fixedly installed at the end of the conversion block (72). There is a spacing between the two pull plates (74). The extension rod (75) passes through the spacing between the two pull plates (74). The built-in plate (73) is located between the conversion block (72) and the pull plate (74).

4. An intelligent welding device for machining lathe castings according to claim 3, characterized in that: There is a spacing between the built-in plate (73) and the conversion block (72). When the conversion electric push rod (71) is fully retracted, the pull plate (74) contacts the built-in plate (73), and the spring piece (55) is in a straight state.

5. An intelligent welding device for processing lathe castings according to claim 1, characterized in that: The alignment component (6) includes a turntable (61), an insertion tube (62), a first electric push rod (63), an extension rod (64), a linkage rod (66) and a fixture table (610). Symmetrically arranged fixture tables (610) are fixedly installed on the top of the heightening platform (1). The turntable (61) is rotationally connected to the side part of the fixture table (610). The end of the insertion tube (62) is fixedly installed at the center of the turntable (61). The inside of the insertion tube (62) is hollow. A first electric push rod (63) is fixedly installed at the center of the turntable (61) and inside the insertion tube (62). The end of the insertion tube (62) is rotationally connected to the extension rod (64). The end of the first electric push rod (63) is hinged to the extension rod (64) through the linkage rod (66). The alignment component (6) is inserted into the internal part of the tubular casting.

6. The intelligent welding equipment for machining lathe castings according to claim 5, characterized in that: The end of the extension rod (64) is rotationally connected with a roller (65). The roller (65) contacts the inner wall of the tubular casting. A plurality of extension rods (64) are provided and are annularly and equally angularly distributed at the end of the insertion tube (62). A pressure switch (67) is fixedly installed at the end of the extension rod (64) at the bottommost position. The pressure switch (67) is electrically connected to the first electric push rod (63).

7. An intelligent welding device for processing lathe castings according to claim 6, characterized in that: A second electric push rod (68) is fixedly installed on the side part of the turntable (61). A clamping plate (69) is fixedly installed at the end of the second electric push rod (68). The insertion tube (62) passes through the center of the clamping plate (69). The side part of the clamping plate (69) contacts the tubular casting.

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