Storage tank body welding device

Abstract

The invention discloses a storage tank body welding device which comprises a welding frame, and a mounting plate is horizontally and fixedly connected to the welding frame; the number of the positioning clamping mechanisms is two, the two positioning clamping mechanisms are correspondingly arranged, each positioning clamping mechanism comprises a supporting seat and a positioning assembly, and the supporting seat is slidably connected to the top face of the mounting plate through a linear displacement assembly; the welding mechanism comprises a welding assembly and a first linear motor; the welding seam polishing frame is arranged on one side of the welding frame; the moving mechanism comprises a second linear motor and a moving frame, the second linear motor is installed on the weld joint polishing frame, and a lifting assembly is installed on the moving frame; the grinding mechanism is mounted on the side, away from the welding frame, of the weld joint grinding frame; and the visual guiding system is installed on the welding assembly. According to the automatic welding device, the curled plate can be welded in a full-automatic mode, human intervention is not needed, and the welding efficiency and the welding effect are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal welding equipment, in particular to a storage tank body welding device. BACKGROUND

[0002] The pressure vessel storage tank, such as a storage tank for storing refrigerant. Since the refrigerant is easy to vaporize, its storage tank usually requires to be able to withstand a certain pressure. There are mainly two ways to prepare the tank body of the pressure vessel storage tank in the prior art, one is to adopt an integrated extrusion forming mode, and the other is to adopt a plate material curling welding. Since extrusion forming requires a special mold, the current mainstream mode is still plate bending welding. The current welding device needs to set a welding point before welding, preliminarily fix the butt joint part, and then perform filling welding. The process is relatively complex and prone to deviation. Therefore, the present application provides a storage tank body welding device. SUMMARY

[0003] The purpose of the present application is to provide a storage tank body welding device to solve the problems existing in the prior art.

[0004] To achieve the above-mentioned purpose, the present application provides the following scheme: the present application provides a storage tank body welding device, which comprises:

[0005] A welding frame is horizontally fixedly connected with a mounting plate;

[0006] A positioning and clamping mechanism is provided with two groups, which are correspondingly arranged. The positioning and clamping mechanism comprises a supporting seat and a positioning assembly. The supporting seat is slidably connected to the top surface of the mounting plate through a linear displacement assembly. The positioning assembly is fixedly connected to the top surface of the supporting seat.

[0007] A welding mechanism comprises a welding assembly and a first linear motor. The first linear motor is installed at the top end of the welding frame. The welding assembly is installed on the first linear motor.

[0008] A weld seam polishing frame is arranged on one side of the welding frame.

[0009] A moving mechanism comprises a second linear motor and a moving frame. The second linear motor is installed on the weld seam polishing frame. The moving frame is installed on the second linear motor. A lifting assembly is installed on the moving frame.

[0010] A polishing mechanism is installed on the side of the weld seam polishing frame away from the welding frame and is correspondingly arranged with the lifting assembly.

[0011] A visual guidance system is installed on the welding assembly.

[0012] The positioning assembly comprises a mounting bearing fixedly connected to the support base, a rotating driving assembly and a positioning assembly are mounted on the mounting bearing, the rotating driving assembly comprises an outer gear ring fixedly connected to the inner ring of the mounting bearing, a driving motor is fixedly connected to the outer wall of the outer ring of the mounting bearing, a driving gear is fixedly connected to the output shaft of the driving motor, the driving gear is engaged with the outer gear ring, and the positioning assembly is mounted on the other side of the inner ring of the mounting bearing.

[0013] The positioning assembly comprises a mounting ring fixedly connected to the inner ring of the mounting bearing, mounting bosses are fixedly connected to the inner wall of the mounting ring at equal intervals in the circumferential direction, through holes are formed in the mounting bosses, the axis of the through holes is collinear with the radius line of the mounting ring, threaded rods are inserted into the through holes, arc-shaped positioning plates are fixedly connected to one end of the threaded rods, four groups of the arc-shaped positioning plates are located in the mounting ring, fixed heads are fixedly connected to the other end of the threaded rods, adjusting nuts are rotatably connected to the mounting bosses, the adjusting nuts are threadedly connected with the threaded rods, electric slip rings are mounted on the mounting bosses, and the rotor of the electric slip ring is fixedly connected with the outer wall of the adjusting nut.

[0014] The welding assembly comprises a mounting frame mounted on the first linear motor, an electric control telescopic rod is vertically mounted on the mounting frame, a welding gun is mounted at the bottom end of the electric control telescopic rod, and the visual guiding system is mounted on the mounting frame.

[0015] The lifting assembly comprises a lifting plate rotatably connected to the top end of the moving frame, the cross section of the lifting plate is in V-shaped structure, a lifting hydraulic cylinder is hingedly connected to the moving frame, and the top end of the lifting hydraulic cylinder is hingedly connected with the bottom surface of the lifting plate.

[0016] The polishing mechanism comprises a mounting seat rotatably connected to one end of the top surface of the weld polishing frame, an installation arm is fixedly connected to the top surface of the mounting seat, a polishing abrasive wheel is rotatably connected to the end of the installation arm through a rotating shaft, a driven pulley is fixedly connected to the rotating shaft, a polishing motor is fixedly connected to the mounting seat, a driving pulley is fixedly connected to the output shaft of the polishing motor, the driving pulley and the driven pulley are drivingly connected through a belt, an angle adjusting assembly is mounted on the weld polishing frame, and the angle adjusting assembly is fixedly connected with the bottom surface of the mounting seat.

[0017] The angle adjusting assembly comprises a jacking hydraulic cylinder rotatably connected to the weld joint polishing frame, and the jacking hydraulic cylinder is hingedly connected to the bottom of the mounting seat.

[0018] The visual guiding system comprises a multi-dimensional capturing camera, which is mounted on the mounting frame and electrically connected with a controller.

[0019] The weld joint polishing frame is fixedly connected with a buffer frame at one side top, the buffer frame is correspondingly arranged with the lifting plate, and an included angle is arranged between the buffer frame and the top surface of the weld joint polishing frame.

[0020] The present application discloses the following technical effects:

[0021] During work, the plate is curled to form a cylindrical structure of the tank body, one set of positioning and clamping mechanisms is used to clamp the middle position of the tank body to keep the cylindrical structure unchanged, then the first linear motor cooperates with the welding assembly to perform spot welding, after spot welding, two sets of positioning and clamping mechanisms fix the two ends of the tank body, the visual guiding system and the first linear motor cooperate with the welding assembly to weld the weld joint part, after welding, the linear displacement assembly drives the positioning and clamping mechanisms to move the tank body to the lifting assembly, the second linear motor cooperates with the moving frame to move linearly, the polishing mechanism is used to polish the weld joint part of the inner wall of the tank body, then the lifting assembly unloads, and the outer wall of the tank body is polished and subjected to corrosion prevention treatment.

[0022] The present application can automatically weld the curled plate without human intervention, thereby improving the welding efficiency and effect. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0024] Figure 1 It is a structural schematic view of the tank body welding device of the present application;

[0025] Figure 2 It is a structural schematic view of the polishing mechanism of the present application;

[0026] Figure 3 It is Figure 1 An enlarged view of A in FIG. 4;

[0027] Figure 4 For Figure 2 Enlarged view at C.

[0028] Wherein, 1, welding frame; 2, mounting plate; 3, support seat; 4, weld polishing frame; 5, moving frame; 6, mounting bearing; 7, outer gear ring; 8, drive gear; 9, drive motor; 10, mounting ring; 11, mounting boss; 12, threaded rod; 13, arc positioning plate; 14, fixed head; 15, adjusting nut; 16, mounting frame; 17, electric control telescopic rod; 18, welding gun; 19, lifting plate; 20, lifting hydraulic cylinder; 21, mounting seat; 22, mounting arm; 23, polishing grinding wheel; 24, polishing motor; 25, jacking hydraulic cylinder; 26, buffer frame. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be apparently and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0030] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0031] With reference to Figures 1-4 The present application provides a kind of storage tank body welding device, comprising:

[0032] Welding frame 1, welding frame 1 is horizontally fixedly connected with mounting plate 2;

[0033] Positioning clamping mechanism, positioning clamping mechanism is provided with two groups, two groups of positioning clamping mechanism are correspondingly set, positioning clamping mechanism includes support seat 3 and positioning assembly, support seat 3 is slidably connected on the top surface of mounting plate 2 by linear displacement component, and positioning assembly is fixedly connected on the top surface of support seat 3;Linear displacement component uses prior art, such as screw slide etc.;

[0034] Welding mechanism, including welding assembly and first linear motor, first linear motor is installed at the top end of welding frame 1, and welding assembly is installed on first linear motor;

[0035] Weld polishing frame 4, weld polishing frame 4 is set on one side of welding frame 1;

[0036] Moving mechanism, moving mechanism includes second linear motor and moving frame 5, second linear motor is installed on weld polishing frame 4, moving frame 5 is installed on second linear motor, and lifting assembly is installed on moving frame 5;

[0037] The polishing mechanism is installed on the side of the welding seam polishing frame 4 away from the welding frame 1 and is arranged corresponding to the lifting assembly;

[0038] The visual guiding system is installed on the welding assembly.

[0039] In the working process of the present application, the plate is curled to form a cylindrical structure of the can body, one set of positioning and clamping mechanism is used to clamp the middle position of the can body to keep the cylindrical structure unchanged, then the first linear motor cooperates with the welding assembly to perform spot welding, after the spot welding is completed, two sets of positioning and clamping mechanisms are used to fix the two ends of the can body, the visual guiding system, the first linear motor and the welding assembly are used to weld the welding seam, after the welding is completed, the positioning and clamping mechanism is driven by the linear displacement assembly to move the can body to the lifting assembly, the second linear motor cooperates with the moving frame 5 to move linearly, the polishing mechanism is used to polish the welding seam on the inner wall of the can body, then the lifting assembly is used to unload, the outer wall of the can body is polished and corrosion prevention treatment is performed.

[0040] The present application can automatically weld the curled plate without human intervention, thereby improving the welding efficiency and welding effect.

[0041] Further optimization scheme, the positioning assembly includes a mounting bearing 6 fixedly connected to the support seat 3, a rotating drive assembly and a positioning assembly are installed on the mounting bearing 6, the rotating drive assembly includes an outer gear ring 7 fixedly connected to the inner ring of the mounting bearing 6, a driving motor 9 is fixedly connected to the outer wall of the outer ring of the mounting bearing 6, the output shaft of the driving motor 9 is fixedly connected with a driving gear 8, and the driving gear 8 is engaged with the outer gear ring 7, and the positioning assembly is installed on the other side of the inner ring of the mounting bearing 6.

[0042] Further optimization scheme, the positioning assembly includes a mounting ring 10 fixedly connected to the inner ring of the mounting bearing 6, mounting bosses 11 are fixedly connected to the inner wall of the mounting ring 10 at equal intervals in the circumferential direction, through holes are formed in the mounting bosses 11, the axis of the through holes is collinear with the radius line of the mounting ring 10, threaded rods 12 are inserted into the through holes, arc-shaped positioning plates 13 are fixedly connected to one end of the threaded rods 12, four sets of arc-shaped positioning plates 13 are located in the mounting ring 10, fixed heads 14 are fixedly connected to the other end of the threaded rods 12, adjusting nuts 15 are rotatably connected to the mounting bosses 11, the adjusting nuts 15 are threadedly connected with the threaded rods 12, electric slip rings are installed on the mounting bosses 11, and the rotor of the electric slip ring is fixedly connected with the outer wall of the adjusting nut 15.

[0043] In this embodiment, two sets of positioning and clamping mechanisms clamp one of the can body and the upper and lower end covers respectively, the driving motor 9 controls the rotation of the driving gear 8, the driving gear 8 drives the rotation of the outer gear ring 7, so that the installation ring 10 rotates with the inner ring of the installation bearing 6, and the welding gun 18 performs circular welding on the can body and the end cover. At the same time, a visual detection module needs to be provided on the installation plate 2 for detecting the welding quality. When the can body is welded, one of the positioning and clamping mechanisms clamps the curled plate, the welding gun 18 performs spot welding on the end point part, and then the two sets of positioning and clamping mechanisms clamp the two ends of the can body, the positioning and clamping mechanisms are controlled to move linearly by the linear displacement assembly, the welding gun 18 performs welding on the welding seam, the electric slip ring drives the rotation of the adjusting nut 15, the adjusting nut 15 controls the threaded rod 12 to slide along the radius line of the installation ring 10, pushes the arc-shaped plate to abut against the can body, and the four sets of arc-shaped plates cooperate to position the can body, without human intervention.

[0044] The threaded rod 12 and the through hole can only keep relative sliding, without relative rotation. A limiting part needs to be provided in the through hole for limiting, such as the cooperation of the limiting block and the limiting groove, which is not specifically limited in this embodiment.

[0045] Further optimization scheme, the welding assembly includes a mounting frame 16 mounted on the first linear motor, the mounting frame 16 is vertically mounted with an electric control telescopic rod 17, the bottom end of the electric control telescopic rod 17 is mounted with a welding gun 18, and a visual guidance system is mounted on the mounting frame 16.

[0046] The mounting frame 16 moves on the straight line through the first linear motor, the electric control telescopic rod 17 moves with the mounting frame 16, and the welding gun 18 moves up and down through the electric control telescopic rod 17, so as to realize the welding of the welding seam part.

[0047] Further optimization scheme, the lifting assembly includes a lifting plate 19 rotationally connected to the top end of the moving frame 5, the cross-sectional shape of the lifting plate 19 is V-shaped structure, the moving frame 5 is hingedly connected with a lifting hydraulic cylinder 20, and the top end of the lifting hydraulic cylinder 20 is hingedly connected with the bottom surface of the lifting plate 19.

[0048] The lifting plate 19 is deflected by the lifting hydraulic cylinder 20 to realize blanking, and the top surface of the lifting plate 19 is provided with an anti-skid layer and a heat insulation layer.

[0049] Further optimization scheme, the polishing mechanism includes a mounting seat 21 rotationally connected to one end of the top surface of the welding seam polishing frame 4, the mounting seat 21 is fixedly connected with a mounting arm 22 on the top surface, the mounting arm 22 is rotationally connected with a polishing abrasive wheel 23 at the end portion through a rotating shaft, a driven pulley is fixedly connected to the rotating shaft, a polishing motor 24 is fixedly connected to the mounting seat 21, a driving pulley is fixedly connected to the output shaft of the polishing motor 24, and the driving pulley and the driven pulley are driven in cooperation through a belt, an angle adjusting assembly is installed on the welding seam polishing frame 4, and the angle adjusting assembly is fixedly connected with the bottom surface of the mounting seat 21.

[0050] Further optimization scheme, the angle adjusting assembly comprises a jacking hydraulic cylinder 25 rotatably connected to the weld polishing frame 4, and the top of the jacking hydraulic cylinder 25 is hingedly connected to the bottom of the mounting seat 21.

[0051] Further optimization scheme, the visual guidance system comprises a multi-dimensional capture camera, the multi-dimensional capture camera is mounted on the mounting frame 16, the multi-dimensional capture camera is electrically connected with a controller, and the controller is electrically connected with the electric telescopic rod 17.

[0052] In the embodiment, the weld is scanned by the multi-dimensional capture camera before welding, and a laser ranging assembly is needed to be mounted on the mounting frame 16, laser ranging is performed through the laser ranging assembly, the welding depth curve of the welding gun 18 is simulated through laser ranging and the multi-dimensional capture camera, and the curve is introduced into the controller, the controller controls the electric telescopic rod 17 according to the welding curve, so that the weld part can change along with the change of the material, so that the thickness of the weld is kept consistent, so that the stress dispersion at the part position can be avoided to a great extent, and the weld position cannot withstand high pressure.

[0053] The controller can be set according to a specific use environment, for example, a single-chip microcomputer or a method such as PLC, ARM (Advanced RISC Machine), FPGA (Field-Programmable Gate Array) is used for control, and the embodiment is not limited specifically.

[0054] Further optimization scheme, the weld polishing frame 4 is fixedly connected with a buffer frame 26 at the top of one side, the buffer frame 26 is correspondingly arranged with the lifting plate 19, and an included angle is arranged between the buffer frame 26 and the top surface of the weld polishing frame 4.

[0055] In the embodiment, the lifting plate 19 is deflected by the lifting hydraulic cylinder 20 to push the tank body after polishing on the lifting plate 19 down, so that the tank body falls through the buffer frame 26, and then the box body is recycled for subsequent outer surface polishing and spraying.

[0056] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the present application.

[0057] The above described embodiments are only to illustrate the preferred modes of the present application, and are not intended to limit the scope of the present application. Any modification and improvement made by those skilled in the art to the technical solutions of the present application without departing from the design spirit of the present application shall fall within the protection scope of the present application as defined by the claims.

Claims

1. A storage tank shell welding apparatus characterized by comprising: Include: The welding frame (1) is horizontally fixedly connected with the mounting plate (2); The positioning clamping mechanism is provided with two groups, and the two groups of positioning clamping mechanisms are correspondingly arranged, the positioning clamping mechanism comprises a supporting seat (3) and a positioning assembly, the supporting seat (3) is slidably connected to the top surface of the mounting plate (2) through a linear displacement assembly, and the positioning assembly is fixedly connected to the top surface of the supporting seat (3); The welding mechanism comprises a welding assembly and a first linear motor, the first linear motor is installed at the top end of the welding frame (1), and the welding assembly is installed on the first linear motor; The weld polishing frame (4) is arranged on one side of the welding frame (1); The moving mechanism comprises a second linear motor and a moving frame (5), the second linear motor is installed on the weld polishing frame (4), the moving frame (5) is installed on the second linear motor, and the moving frame (5) is installed with a lifting assembly; The polishing mechanism is installed on the side of the weld polishing frame (4) away from the welding frame (1), and is correspondingly arranged with the lifting assembly; The visual guidance system is installed on the welding assembly.

2. A tank shell welding apparatus according to claim 1, characterised in that: The positioning assembly comprises a mounting bearing (6) fixedly connected to the supporting seat (3), a rotating drive assembly and a positioning assembly are installed on the mounting bearing (6), the rotating drive assembly comprises an outer gear ring (7) fixedly connected to the inner ring of the mounting bearing (6), the outer wall of the outer ring of the mounting bearing (6) is fixedly connected with a driving motor (9), the output shaft of the driving motor (9) is fixedly connected with a driving gear (8), the driving gear (8) is engaged with the outer gear ring (7), and the positioning assembly is installed on the other side of the inner ring of the mounting bearing (6).

3. A tank shell welding apparatus according to claim 2, characterised in that: The positioning assembly comprises an installation ring (10) fixedly connected with the inner ring of the mounting bearing (6), the inner wall of the installation ring (10) is fixedly connected with installation bosses (11) at equal intervals in the circumferential direction, the installation bosses (11) are provided with through holes, the axis of the through hole is collinear with the radius line of the installation ring (10), the threaded rod (12) is inserted into the through hole, one end of the threaded rod (12) is fixedly connected with an arc-shaped positioning plate (13), four groups of arc-shaped positioning plates (13) are located in the installation ring (10), the other end of the threaded rod (12) is fixedly connected with a fixed head (14), the installation boss (11) is rotatably connected with an adjusting nut (15), the adjusting nut (15) is threadedly connected with the threaded rod (12), and an electric slip ring is installed on the installation boss (11).

4. The apparatus of claim 1, wherein: The welding assembly comprises a mounting frame (16) installed on the first linear motor, a electric control telescopic rod (17) is vertically installed on the mounting frame (16), a welding gun (18) is installed at the bottom end of the electric control telescopic rod (17), and the visual guidance system is installed on the mounting frame (16).

5. The apparatus of claim 1, wherein: The lifting assembly comprises a lifting plate (19) rotatably connected to the top end of the moving frame (5), the cross section of the lifting plate (19) is V-shaped structure, a lifting hydraulic cylinder (20) is hinged to the moving frame (5), and the top end of the lifting hydraulic cylinder (20) is hinged to the bottom surface of the lifting plate (19).

6. The apparatus of claim 1, wherein: The polishing mechanism comprises a mounting seat (21) rotatably connected to one end of the top surface of the weld polishing frame (4), a mounting arm (22) is fixedly connected to the top surface of the mounting seat (21), a polishing grinding wheel (23) is rotatably connected to the end of the mounting arm (22) through a rotating shaft, a driven pulley is fixedly connected to the rotating shaft, a polishing motor (24) is fixedly connected to the mounting seat (21), a driving pulley is fixedly connected to the output shaft of the polishing motor (24), the driving pulley and the driven pulley are drivingly connected through a belt, an angle adjusting assembly is installed on the weld polishing frame (4), and the angle adjusting assembly is fixedly connected to the bottom surface of the mounting seat (21).

7. A tank shell welding apparatus as defined in claim 6, wherein: The angle adjusting assembly comprises a jacking hydraulic cylinder (25) rotatably connected to the weld polishing frame (4), and the top of the jacking hydraulic cylinder (25) is hinged to the bottom of the mounting seat (21).

8. The apparatus of claim 4, wherein: The visual guidance system comprises a multi-dimensional capture camera installed on the mounting frame (16), and the multi-dimensional capture camera is electrically connected with a controller, and the controller is electrically connected with the electric telescopic rod (17).

9. The apparatus of claim 5, wherein: One side of the top of the weld polishing frame (4) is fixedly connected with a buffer frame (26), the buffer frame (26) is arranged correspondingly to the lifting plate (19), and an included angle is arranged between the buffer frame (26) and the top surface of the weld polishing frame (4).

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