Automatic cathode plate welding machine

Abstract

The utility model discloses an automatic welding machine for a cathode plate, belongs to the technical field of processing of cathode plates for wet electrolytic zinc, and solves the problems of high labor intensity, low processing efficiency and uneven welding quality in the conventional manual welding operation. Comprising a welding machine base, a welding machine connecting cross beam is arranged between two sets of welding machine cross beam stand columns on the welding machine base, a welding machine sliding base is movably arranged on the welding machine connecting cross beam, and a welding machine welding gun is arranged on the welding machine sliding base; the front end and the rear end of a turnover displacement frame arranged below the welding machine connecting cross beam are rotationally connected with displacement frame supporting seats through displacement rotating shafts correspondingly, the displacement rotating shaft at one end is connected with a displacement driving motor through a transmission mechanism, and a displacement aluminum plate clamping mechanism and a displacement cross beam clamping mechanism are arranged on the upper side of the turnover displacement frame. The double-sided welding machine is reasonable in design, compact in structure, firm in welding, low in labor intensity, high in machining efficiency and good in product consistency, the welding gun can linearly move, the plate face of the cathode plate can be freely overturned, and double-sided welding of the cathode plate is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cathode plate processing for wet electrolytic zinc, and in particular relates to an automatic cathode plate welding machine. Background Art

[0002] The cathode plate used in wet electrolytic zinc production consists of two parts: a cathode conductive beam and a cathode aluminum plate. Currently, the alignment and welding of the cathode conductive beam and cathode aluminum plate are performed manually, which is labor-intensive and inefficient. Furthermore, the quality of cathode plate welding varies greatly, depending on the skill level and work experience of the welding operators, resulting in poor consistency in the finished product. Furthermore, since the cathode plate surface requires double-sided welding, the manual flipping of the cathode aluminum plate and cathode conductive beam is unsafe and labor-intensive, leading to high labor costs. Therefore, it is necessary to improve the existing cathode plate welding methods and devices. Utility Model Content

[0003] The utility model is aimed at the above problems and provides a cathode plate automatic welding machine with a welding gun that can move linearly and a cathode plate surface that can be freely flipped over to achieve double-sided welding of the cathode plate. The welding is firm, the labor intensity is low, the processing efficiency is high, the machine is not limited by the ability of the welding operator, and the product consistency is good.

[0004] The technical solution adopted by the utility model is: the cathode plate automatic welding machine includes a welding machine base, characterized in that: two groups of vertically arranged welding machine beam columns are provided on the welding machine base, a welding machine connecting beam is provided between the two groups of welding machine beam columns, a welding machine sliding base is movably provided on the welding machine connecting beam, and the lower side of the welding machine sliding base is slidably connected to the welding machine base moving guide rail arranged horizontally on the welding machine connecting beam through the welding machine base moving slider, and a welding machine welding gun extending downward is provided on the welding machine sliding base; and a flipping positioning frame is provided below the welding machine connecting beam, and the front and rear ends of the flipping positioning frame are respectively rotatably connected to the positioning frame support seat provided on the welding machine base through the displacement shaft, wherein the displacement shaft at one end is connected to the output end of the displacement drive motor through the flipping displacement transmission mechanism, and the upper side of the flipping positioning frame is also respectively provided with a displacement aluminum plate clamping mechanism for clamping the cathode aluminum plate and a displacement beam clamping mechanism for clamping the cathode conductive beam.

[0005] Several groups of aluminum plate side positioning blocks are provided on one side of the upper side of the flip positioner, and several groups of aluminum plate side tightening cylinders are provided on the other side of the upper side of the flip positioner; a beam upper end positioning block is provided on the upper side of the flip positioner, close to the rear end of the welding machine welding gun, and a beam side positioning block and a beam side tightening cylinder are provided on the left and right sides of the rear end of the flip positioner respectively; several groups of aluminum plate lower end tightening cylinders are provided on the upper side of the flip positioner, away from the front end of the welding machine welding gun. The cathode conductive crossbeam is positioned by utilizing the upper end positioning block of the crossbeam and the side positioning block of the crossbeam provided at the rear end of the upper side of the flipping and positioning frame, and the end of the cathode conductive crossbeam is fixed by the crossbeam side tightening cylinder, and the cathode conductive crossbeam is pressed and fixed by the displacement crossbeam clamping mechanism; at the same time, the position of the cathode aluminum plate is positioned by utilizing the aluminum plate side positioning block provided on one side of the upper side of the flipping and positioning frame, and the side and bottom edges of the cathode aluminum plate are fixed by utilizing the aluminum plate side tightening cylinder provided on the other side of the upper side of the flipping and positioning frame and the aluminum plate lower end tightening cylinder provided at the front end of the upper side of the flipping and positioning frame, and the cathode aluminum plate is also pressed and fixed by the displacement aluminum plate clamping mechanism; thereby, the cathode aluminum plate and the cathode conductive crossbeam are conveniently changed in welding surface as the flipping and positioning frame is flipped.

[0006] The welding machine sliding base is provided with a vertically arranged welding machine base moving motor. The output end of the lower portion of the welding machine base moving motor is provided with a welding machine base transmission gear. The welding machine base transmission gear is meshed with a welding machine base transmission rack arranged along the welding machine base moving guide rail. The welding machine base moving motor drives the welding machine base transmission gear to rotate. The meshing transmission of the welding machine base transmission gear and the welding machine base transmission rack drives the welding machine sliding base and the welding gun thereon to move back and forth laterally along the welding machine base moving guide rail on the welding machine connecting crossbeam, thereby achieving automatic welding of the connection between the cathode conductive crossbeam and the cathode aluminum plate.

[0007] The welding gun is connected to the telescopic end of the lower portion of a vertically arranged welding gun lifting cylinder via a welding gun connecting bracket, and the cylinder body of the welding gun lifting cylinder is fixedly connected to the welding machine sliding base via a lifting cylinder connecting bracket. A welding gun clamping block for clamping the welding gun is also provided at the lower end of the welding gun connecting bracket. The welding gun is mounted on the welding gun clamping block, and the welding gun connecting bracket is used to adjust the welding position of the welding gun in the horizontal plane. The welding gun's vertical welding position is adjusted by extending and retracting the welding gun lifting cylinder, thereby effectively ensuring the welding quality between the cathode aluminum plate and the cathode conductive beam.

[0008] An aluminum plate flattening roller is installed on the side of the welding gun clamping block, facing the direction of the welding gun's movement. The roller is connected to the telescopic end of the welding gun lifting cylinder via a vertically arranged roller connecting frame. The roller, facing the direction of the welding gun's movement, pre-presses the cathode aluminum plate at the weld, facilitating alignment and correcting the weld bead position. This prevents inconsistent welding quality and product quality issues caused by uneven cathode aluminum plate at the weld.

[0009] The beneficial effects of the utility model are as follows: since the utility model adopts two groups of vertically arranged welding machine beam columns on the welding machine base, a welding machine connecting beam is provided between the two groups of welding machine beam columns, a welding machine sliding base is movably provided on the welding machine connecting beam, and a welding machine welding gun extending downward is provided on the welding machine sliding base; a flipping positioning frame is provided under the welding machine connecting beam, and the front and rear ends of the flipping positioning frame are respectively rotatably connected to the positioning frame support seat through a displacement rotating shaft, wherein the displacement rotating shaft at one end is connected to the output end of the displacement driving motor through a flipping positioning transmission mechanism, and the upper side of the flipping positioning frame is respectively provided with a displacement aluminum plate clamping mechanism and a displacement beam clamping mechanism. Therefore, the design is reasonable and the structure is compact, the welding gun can automatically move in a straight line, and the plate surface of the cathode plate can be freely flipped, thereby realizing double-sided welding of the cathode plate; the welding of the cathode plate is firm (the aluminum plate is fully welded), the labor intensity is low, the processing efficiency is high, it is not limited by the ability of the welding operator, and the product consistency is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the present utility model.

[0011] Figure 2 yes Figure 1 A structural diagram of the flip positioning frame and the mechanism thereon.

[0012] Figure 3 yes Figure 1 A structural diagram of a welding machine sliding base and the mechanism thereon.

[0013] Figure 4 yes Figure 3 A schematic diagram of a connection structure between the welding gun connecting bracket and the welding gun lifting cylinder.

[0014] Description of the serial numbers in the figure: 1 welding machine base, 2 welding machine crossbeam column, 3 welding machine connecting crossbeam, 4 welding machine sliding base, 5 welding machine base moving motor, 6 welding machine welding gun, 7 displacement frame support seat, 8 flip displacement frame, 9 displacement shaft, 10 displacement aluminum plate clamping mechanism, 11 displacement crossbeam clamping mechanism, 12 cathode aluminum plate, 13 cathode conductive crossbeam, 14 aluminum plate side positioning block, 15 aluminum plate side tightening cylinder, 16 aluminum plate lower end top Tightening cylinder, 17 beam side positioning block, 18 beam upper end positioning block, 19 beam side tightening cylinder, 20 displacement drive motor, 21 welding machine base moving guide rail, 22 welding machine base transmission rack, 23 welding machine base transmission gear, 24 welding machine base moving slide, 25 welding gun lifting cylinder, 26 welding gun connecting bracket, 27 lifting cylinder connecting frame, 28 welding gun clamping block, 29 aluminum plate flattening roller, 30 roller connecting frame. DETAILED DESCRIPTION

[0015] according to Figures 1 to 4 The specific structure of the present invention is described in detail. The cathode plate automatic welding machine includes a welding machine base 1, on which two groups of vertically arranged welding machine crossbeam columns 2 are provided, a welding machine connecting crossbeam 3 is provided between the upper ends of the two groups of welding machine crossbeam columns 2, and a welding machine sliding base 4 is movably provided on the welding machine connecting crossbeam 3; the lower side of the welding machine sliding base 4 is slidably connected to the two horizontally arranged welding machine base moving guide rails 21 on the welding machine connecting crossbeam 3 through a welding machine base moving slider 24. In addition, a vertically arranged welding machine base moving motor 5 is also provided on the welding machine sliding base 4, and a welding machine base transmission gear 23 is provided at the output end of the lower part of the welding machine base moving motor 5; the welding machine base transmission gear 23 is meshed with a welding machine base transmission rack 22 arranged along the direction of the welding machine base moving guide rail 21. Thus, the welding machine base moving motor 5 is used to drive the welding machine base transmission gear 23 to rotate, and the meshing transmission of the welding machine base transmission gear 23 and the welding machine base transmission rack 22 is utilized to drive the welding machine sliding base 4 and the welding machine welding gun 6 thereon to move back and forth along the welding machine base moving guide rail 21 on the welding machine connecting beam 3, thereby realizing automatic welding of the connection part between the cathode conductive beam 13 and the cathode aluminum plate 12.

[0016] A downwardly extending welding gun 6 is provided on the welding machine sliding base 4. The welding gun 6 is connected to the telescopic end of the lower portion of the vertically arranged welding gun lifting cylinder 25 via a welding gun connecting bracket 26. The cylinder body of the welding gun lifting cylinder 25 is fixedly connected to the welding machine sliding base 4 via a lifting cylinder connecting bracket 27. A welding gun clamping block 28 for clamping the welding gun 6 is also provided at the lower end of the welding gun connecting bracket 26. The welding gun 6 is then mounted on the welding gun clamping block 28. The welding gun connecting bracket 26 is used to adjust the welding position of the welding gun 6 in the horizontal plane, and the vertical welding position of the welding gun 6 is adjusted by the extension and contraction of the welding gun lifting cylinder 25, thereby effectively ensuring the welding quality between the cathode aluminum plate 12 and the cathode conductive beam 13.

[0017] At the same time, an aluminum plate flattening roller 29 is provided on the side of the welding gun clamping block 28 at the lower end of the welding gun connecting bracket 26, and the aluminum plate flattening roller 29 is arranged on the side facing the moving direction of the welding gun. That is, before the welding gun 6 welds the welding part, the aluminum plate flattening roller 29 can pre-press the cathode aluminum plate 12 at the welding part downward; the aluminum plate flattening roller 29 is connected to the telescopic end of the welding gun lifting cylinder 25 via a vertically arranged roller connecting frame 30. Furthermore, the aluminum plate flattening roller 29 arranged on the side facing the moving direction of the welding gun can pre-press the cathode aluminum plate 12 at the welding part to facilitate the alignment and correction of the weld bead position, thereby avoiding inconsistent welding quality caused by unevenness of the cathode aluminum plate 12 at the welding part, which affects product quality.

[0018] A tilting and positioning frame 8 is also located below the welding machine connecting beam 3. The front and rear ends of the tilting and positioning frame 8 are rotatably connected to the tilting frame support 7 provided on the welding machine base 1 via a tilting and positioning shaft 9. Furthermore, one end of the tilting and positioning shaft 9 is connected to the output end of the positioning drive motor 20 via a tilting and positioning transmission mechanism. Several sets of tilting and positioning aluminum plate clamping mechanisms 10 for clamping the cathode aluminum plate 12 are located on the left and right sides of the upper side of the tilting and positioning frame 8. Several sets of tilting and positioning beam clamping mechanisms 11 for clamping the cathode conductive beam 13 are located on the upper side of the tilting and positioning frame 8, near the rear end of the welding gun 6.

[0019] Furthermore, several sets of aluminum plate side positioning blocks 14 are provided on one side of the upper side of the tilting and positioning frame 8, and several sets of aluminum plate side tightening cylinders 15 are provided on the other side of the upper side of the tilting and positioning frame 8. A crossbeam upper end positioning block 18 is provided on the upper side of the tilting and positioning frame 8, near the rear end of the welding gun 6. Crossbeam side positioning blocks 17 and crossbeam side tightening cylinders 19 are also provided on the left and right sides of the rear end of the tilting and positioning frame 8, respectively. Several sets of aluminum plate lower end tightening cylinders 16 are provided on the upper side of the tilting and positioning frame 8, away from the front end of the welding gun 6. The crossbeam upper end positioning blocks 18 and crossbeam side positioning blocks 17 provided on the rear end of the upper side of the tilting and positioning frame 8 are used to position the cathode conductive beam 13. The crossbeam side tightening cylinders 19 secure the end of the cathode conductive beam 13, and the tilting crossbeam clamping mechanism 11 compresses and secures the cathode conductive beam 13. At the same time, the position of the cathode aluminum plate 12 is positioned by the aluminum plate side positioning block 14 provided on one side of the upper side of the flipping positioner 8, and the aluminum plate side tightening cylinder 15 provided on the other side of the upper side of the flipping positioner 8 and the aluminum plate lower end tightening cylinder 16 provided on the front end of the upper side of the flipping positioner 8 are used to fix the side and bottom edges of the cathode aluminum plate 12; and, the cathode aluminum plate 12 is also pressed and fixed by the displacement aluminum plate clamping mechanism 10, so that the cathode aluminum plate 12 and the cathode conductive beam 13 change the welding surface as the flipping positioner 8 is flipped.

[0020] When the cathode plate automatic welding machine is used, first, the cathode conductive beam 13 is placed on the rear end of the upper side of the flipping and positioning frame 8 by an automated device such as a seven-axis robot, and the position of the cathode conductive beam 13 is positioned by the beam upper end positioning block 18 and the beam side positioning block 17, and the end of the cathode conductive beam 13 is fixed by the beam side tightening cylinder 19. Afterwards, the seven-axis robot places the cathode aluminum plate 12 with the insulating portion injection molded on the upper side of the flipping and positioning frame 8, and aligns and connects it with the cathode conductive beam 13, and the position of the cathode aluminum plate 12 is positioned by the aluminum plate side positioning block 14 provided on one side of the upper side of the flipping and positioning frame 8, and the side and bottom edges of the cathode aluminum plate 12 are fixed by the aluminum plate side tightening cylinder 15 provided on the other side of the upper side of the flipping and positioning frame 8 and the aluminum plate lower end tightening cylinder 16 provided on the front end of the upper side of the flipping and positioning frame 8. After the cathode conductive beam 13 and the cathode aluminum plate 12 are positioned and placed, the cathode conductive beam 13 is pressed and fixed by the displacement beam clamping mechanism 11, and the cathode aluminum plate 12 is pressed and fixed by the displacement aluminum plate clamping mechanism 10, so that the cathode aluminum plate 12 and the cathode conductive beam 13 can change the welding surface as the flipping positioner 8 is flipped.

[0021] Then, the welding position of the welding gun 6 in the horizontal plane is adjusted by using the welding gun connecting bracket 26, and the vertical position of the welding gun 6 and the aluminum plate flattening roller 29 is adjusted by extending and retracting the welding gun lifting cylinder 25. After the position of the welding gun 6 is adjusted, the welding machine base moving motor 5 drives the welding machine sliding base 4 and the welding gun 6 and the aluminum plate flattening roller 29 mounted thereon to move back and forth along the welding machine base moving guide rail 21, thereby automatically welding the front connection portion between the cathode conductive beam 13 and the cathode aluminum plate 12. Once the front connection is welded, the position-shifting drive motor 20 drives the flipping and positioning frame 8 to rotate 180 degrees around the position-shifting shafts 9 at both ends, thereby positioning the back (unwelded) sides of the cathode conductive beam 13 and cathode aluminum plate 12 upward. Subsequently, the welding gun 6 and aluminum plate flattening rollers 29 mounted on the welder's sliding base 4 automatically weld the back connection between the cathode conductive beam 13 and cathode aluminum plate 12. After welding both sides, the flipping and positioning frame 8 flips 180 degrees in the opposite direction, returning to its top-facing position, and releases the various clamping mechanisms and tightening cylinders. The seven-axis robot then grabs the welded and assembled cathode plate and places it in the finished product stacking area.

Claims

1. A cathode plate automatic welding machine, comprising a welding machine base (1), characterized in that: The welding machine base (1) is provided with two groups of vertically arranged welding machine crossbeam columns (2), a welding machine connecting crossbeam (3) is provided between the two groups of welding machine crossbeam columns (2), a welding machine sliding base (4) is movably provided on the welding machine connecting crossbeam (3), and the lower side of the welding machine sliding base (4) is slidably connected to the welding machine base moving guide rail (21) arranged horizontally on the welding machine connecting crossbeam (3) through the welding machine base moving slider (24), and a welding machine welding gun (6) extending downward is provided on the welding machine sliding base (4); and the welding machine connecting crossbeam A flipping and positioning frame (8) is provided below the beam (3), and the front and rear ends of the flipping and positioning frame (8) are respectively connected to the positioning frame support seat (7) provided on the welding machine base (1) through the displacement shaft (9), and the displacement shaft (9) at one end is connected to the output end of the displacement drive motor (20) through the flipping and positioning transmission mechanism. The upper side of the flipping and positioning frame (8) is also provided with a displacement aluminum plate clamping mechanism (10) for clamping the cathode aluminum plate (12) and a displacement beam clamping mechanism (11) for clamping the cathode conductive beam (13).

2. The cathode plate automatic welding machine according to claim 1, characterized in that: A plurality of sets of aluminum plate side positioning blocks (14) are provided on one side of the upper side of the flipping positioning frame (8), and a plurality of sets of aluminum plate side tightening cylinders (15) are provided on the other side of the upper side of the flipping positioning frame (8); a beam upper end positioning block (18) is provided on the upper side of the flipping positioning frame (8) near the rear end of the welding machine welding gun (6), and a beam side positioning block (17) and a beam side tightening cylinder (19) are provided on the left and right sides of the rear end of the flipping positioning frame (8), respectively; and a plurality of sets of aluminum plate lower end tightening cylinders (16) are provided on the upper side of the flipping positioning frame (8) away from the front end of the welding machine welding gun (6).

3. The cathode plate automatic welding machine according to claim 1, characterized in that: A vertically arranged welding machine base moving motor (5) is provided on the welding machine sliding base (4); a welding machine base transmission gear (23) is provided at the output end of the lower portion of the welding machine base moving motor (5); the welding machine base transmission gear (23) is meshed with a welding machine base transmission rack (22) arranged along the direction of the welding machine base moving guide rail (21).

4. The cathode plate automatic welding machine according to claim 1, characterized in that: The welding gun (6) of the welding machine is connected to the telescopic end of the lower part of the vertically arranged welding gun lifting cylinder (25) through the welding gun connecting bracket (26), and the cylinder body of the welding gun lifting cylinder (25) is fixedly connected to the welding machine sliding base (4) through the lifting cylinder connecting bracket (27); the lower end of the welding gun connecting bracket (26) is also provided with a welding gun clamping block (28) for clamping the welding gun (6) of the welding machine.

5. The cathode plate automatic welding machine according to claim 4, characterized in that: An aluminum plate flattening roller (29) is provided on the side of the welding gun clamping block (28), and the aluminum plate flattening roller (29) is arranged on the side facing the moving direction of the welding gun. The aluminum plate flattening roller (29) is connected to the telescopic end of the welding gun lifting cylinder (25) through a vertically arranged roller connecting frame (30).

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