Double-station cladding special machine equipment applying cold metal transfer

Abstract

The invention belongs to the technical field of welding equipment, and particularly provides double-station cladding special machine equipment applying cold metal transfer, the double-station cladding special machine equipment comprises a base and an automatic welding mechanism, the base is provided with at least two cladding stations, and each cladding station comprises a rotary headstock, a bracket and a tailstock; the rotary head frame is arranged at the two ends of the base, the bracket and the tailstock are arranged on the base in a sliding mode, and the bracket is located between the tailstock and the rotary head frame. A cross beam is arranged on the base, the cross beam is arranged in the length direction of the base and penetrates through the two cladding stations, and the automatic welding mechanism is arranged on the cross beam in a sliding mode. According to the double-cladding station, the downtime of equipment is shortened, the production efficiency is improved, only two degrees of freedom of movement of the automatic welding mechanism are achieved, programming is very easy, a technologist and an operator can also avoid excessive time consumption and errors, and the technical problems are solved.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, in particular to a double-station cladding machine equipment using cold metal transfer. Background Art

[0002] At present, the cold metal transfer cladding process is used in the manufacture of wind power sliding bearings. It mainly adopts the method of a robotic arm equipped with a welding machine. The planetary shaft is placed vertically or horizontally on a workbench and rotated. The robotic arm performs cladding according to a pre-programmed program.

[0003] However, this method of using a robotic arm for cladding has two obvious defects: first, after long-term continuous operation, the robotic arm often drifts, causing the actual cladding trajectory to be different from the pre-set program, which can seriously lead to irreparable cladding defects; second, the six-degree-of-freedom programming of the robotic arm requires a lot of work and manpower, and different models of products cannot borrow codes from each other, and each degree of freedom must be reprogrammed. If there is a program inconsistency during this process, the resulting deviations in welding points, distances, etc. will affect product quality.

[0004] Therefore, it is necessary to design a stable, efficient and recommended special equipment to solve the problems encountered by robotic arm cladding. Summary of the invention

[0005] In view of the above problems existing in the prior art, the present invention provides a double-station cladding machine equipment using cold metal transfer. The double cladding stations reduce equipment downtime and improve production efficiency. The automatic welding mechanism moves with only two degrees of freedom, and programming is very simple. Process personnel and operators can also avoid excessive time and errors, thereby solving the above technical problems.

[0006] Technical solution: In order to achieve the above-mentioned purpose, the present invention provides a double-station cladding machine equipment using cold metal transfer, including a base and an automatic welding mechanism. The base is provided with at least two cladding stations, each of which includes a rotary head frame, a bracket and a tailstock; The swivel head is mounted on both ends of the base, the bracket and the tailstock are slidably mounted on the base, and the bracket is located between the tailstock and the swivel head frame; A crossbeam is arranged on the base, and the crossbeam is arranged along the length direction of the base and passes through two cladding stations, and the automatic welding mechanism is slidably arranged on the crossbeam.

[0007] The automatic welding mechanism moves back and forth along the crossbeam, shuttling back and forth between the two stations to perform welding operations. The rotary headstock and tailstock on the cladding station are used to clamp the workpiece, and the bracket is used to support the workpiece to ensure the stability of the workpiece during processing.

[0008] Furthermore, the automatic welding mechanism includes a wire feeding mechanism, an automatic welding gun, a truss and a welding power supply. The truss is arranged on the crossbeam through a sliding seat, the wire feeding mechanism is arranged on the truss, the automatic welding gun is arranged at the end of the truss, the wire feeding mechanism is connected to the automatic welding gun, and the welding power supply is arranged at one end of the base and connected to the automatic welding gun.

[0009] The wire feeding mechanism automatically feeds the welding wire to the automatic welding gun, and the automatic welding gun automatically welds.

[0010] Furthermore, a rotary chuck is provided on the rotary head frame, a top cone assembly is provided on the tailstock, the top cone assembly includes a top cone and an oil cylinder, and the oil cylinder is connected to the top cone. The rotary chuck clamps one end of the workpiece in place, and the top cone clamps the other end of the workpiece under the action of the oil cylinder.

[0011] Furthermore, the bracket includes a chassis, a mounting box, a group of arc-shaped support blocks, forward and reverse screws, and a screw sleeve, wherein the chassis is slidably mounted on the base, the mounting box has an upper opening and is disposed on the chassis, the forward and reverse screws are rotatably disposed in the mounting box, the screw sleeve is disposed on the forward and reverse screws, push rods are hinged at both ends of the screw sleeve, one end of the arc-shaped support block is rotatably disposed on the mounting box, and the middle part of the arc-shaped support block is hinged to the other end of the push rod. The workpiece is placed on the arc-shaped support block, which can support the workpiece without affecting the rotation of the workpiece.

[0012] Furthermore, locking pins are provided on both sides of the chassis, and a hand wheel is provided outside the mounting box, and the hand wheel is connected to the forward and reverse screw rods. By pushing the chassis, the position of the entire bracket on the base can be adjusted, or the distance between the two brackets can be adjusted. By rotating the hand wheel to rotate the forward and reverse screw rods, the two screw sleeves are moved closer or farther from each other, thereby driving the push rod to be propped up or lowered, so as to adjust the lifting angle of the arc-shaped support plate to adapt to workpieces of different diameters.

[0013] Furthermore, a hydraulic pump station is provided on one side of the base, and the hydraulic pump station is connected to the oil cylinder. The hydraulic pump station provides a power source for the oil cylinder.

[0014] Furthermore, a PLC electric control cabinet and an operation panel connected thereto are provided on one side of the base, and the PLC electric control cabinet is also connected to the automatic welding mechanism. The operation panel can be used to program and control the equipment, and the PLC control cabinet is the control center of the whole machine.

[0015] Furthermore, it also includes a foot switch and barreled welding wire arranged on the front and rear sides of the base, the foot switch is connected to the hydraulic pump station, and the barreled welding wire is connected to the wire feeding mechanism. The foot switch serves as a switch for controlling the hydraulic pump station.

[0016] Furthermore, a cooling water tank is provided on the base, a cooling water path is provided in the automatic welding mechanism, and the cooling water path is connected to the cooling water tank. The cooling water tank provides cooling water for the cooling water path to cool the automatic welding mechanism.

[0017] Furthermore, an arc baffle is provided on the base, and the arc baffle is located between the two cladding stations. The arc baffle is used to shield the arc generated during welding.

[0018] Compared with the prior art, the double-station cladding machine equipment using cold metal transfer provided by the present invention has the following beneficial effects: 1. The present invention provides a double-station cladding machine using cold metal transfer, which is equipped with two cladding stations. When the cladding station on one side is operating, the cladding station on the other side can clamp the workpiece normally. After the welding is completed, the automatic welding mechanism directly transfers to the cladding station on the other side to continue the operation, thereby reducing the downtime of the equipment and greatly improving the work efficiency.

[0019] 2. Compared with the traditional six-degree-of-freedom robotic arm welding, the automatic welding mechanism of the present invention adopts two degrees of freedom. First, it can effectively avoid drift causing uneven welds and affecting welding quality; second, compared with the six-degree-of-freedom robotic arm, the two-degree-of-freedom programming of the present invention is very simple, and process personnel and operators can also avoid excessive time and errors, effectively improving the efficiency of process programming to processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a double-station cladding machine equipment using cold metal transfer according to the present invention; Figure 2 It is a top view of a double-station cladding machine equipment using cold metal transfer according to the present invention; Figure 3 It is a front view of a double-station cladding machine equipment using cold metal transfer according to the present invention; Figure 4 It is a side view of a double-station cladding machine equipment using cold metal transfer according to the present invention; Figure 5 for Figure 1 Enlarged schematic diagram at point A in the middle.

[0021] In the figure: 1-base, 2-rotating head frame, 21-rotating chuck, 3-bracket, 31-chassis, 32-mounting box, 33-arc-shaped bracket, 34-positive and negative screws, 35-screw sleeve, 36-push rod, 37-locking pin, 38-handwheel, 4-tailstock, 41-top cone, 42-oil cylinder, 5-crossbeam, 6-wire feeding mechanism, 7-automatic welding gun, 8-truss, 9-welding power supply, 10-hydraulic pump station, 11-operation panel, 12-PLC electric control cabinet, 13-foot switch, 14-barreled welding wire, 15-cooling water tank, 16-arc baffle. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more specific definition of the protection scope of the present invention. The embodiments of the present invention include the following parts: like Figure 1-Figure 4 As shown, a double-station cladding machine equipment using cold metal transfer includes a base 1 and an automatic welding mechanism. The base 1 is provided with at least two cladding stations, each of which includes a rotary head frame 2, a bracket 3 and a tailstock 4; The swivel head frame 2 is arranged at both ends of the base 1, the bracket 3 and the tailstock 4 are slidably arranged on the base 1, and the bracket 3 is located between the tailstock 4 and the swivel head frame 2; A crossbeam 5 is disposed on the base 1 . The crossbeam 5 is disposed along the length direction of the base 1 and passes through two cladding stations. The automatic welding mechanism is slidably disposed on the crossbeam 5 .

[0023] When the equipment is in operation, workers clamp the workpiece to the cladding station on one side through the turret 2, bracket 3 and tailstock 4. While the automatic welding structure is welding the workpiece, workers clamp the workpiece to be welded at the cladding station on the other side. After welding the workpiece on one side, the automatic welding mechanism transfers to the other side through the crossbeam to continue welding, thereby reducing downtime and improving production efficiency.

[0024] Among them, the automatic welding mechanism includes a wire feeding mechanism 6, an automatic welding gun 7, a truss 8 and a welding power supply 9. The truss 8 is arranged on the crossbeam 5 through a sliding seat, the wire feeding mechanism 6 is arranged on the truss 8, the automatic welding gun 7 is arranged at the end of the truss 8, the wire feeding mechanism 6 is connected to the automatic welding gun 7, and the welding power supply 9 is arranged at one end of the base 1 and connected to the automatic welding gun 7.

[0025] Preferably, a rotary chuck 21 is provided on the rotary head frame 2 , and a top cone assembly is provided on the tailstock 4 . The top cone assembly includes a top cone 41 and a cylinder 42 , and the cylinder 42 is connected to the top cone 41 .

[0026] like Figure 5As shown, the bracket 3 includes a chassis 31, a mounting box 32, a group of arc-shaped bracket blocks 33, forward and reverse screws 34, and a screw sleeve 35. The chassis 31 is slidably mounted on the base 1. The mounting box 32 has an upper opening and is disposed on the chassis 31. The forward and reverse screws 34 are rotatably disposed in the mounting box 32. The screw sleeve 35 is disposed on the forward and reverse screws 34. Push rods 36 are hinged at both ends of the screw sleeve 35. One end of the arc-shaped bracket block 33 is rotatably disposed on the mounting box 32. The middle part of the arc-shaped bracket block 33 is hinged to the other end of the push rod 36. Locking pins 37 are disposed on both sides of the chassis 31. A hand wheel 38 is disposed outside the mounting box 32. The hand wheel 38 is connected to the forward and reverse screws 34. The worker first places the workpiece on the bracket, and then rotates the forward and reverse screws 34 by rotating the hand wheel 38. The screw sleeves 35 at both ends of the forward and reverse screws 34 move closer to each other, thereby driving the push rod 36 to support and lift the arc-shaped support block 33 until it fits with the surface of the workpiece, thereby playing a good supporting role.

[0027] Specifically, a hydraulic pump station 10 is further provided on one side of the base 1 , and the hydraulic pump station 10 is connected to the oil cylinder 42 .

[0028] A PLC electric control cabinet 12 and an operation panel 11 connected thereto are provided on one side of the base 1 , and the PLC electric control cabinet 12 is also connected to an automatic welding mechanism.

[0029] In addition, it also includes a foot switch 13 and a barreled welding wire 14 arranged on the front and rear sides of the base. The foot switch 13 is connected to the hydraulic pump station 10, and the barreled welding wire 14 is connected to the wire feeding mechanism 6.

[0030] Preferably, a cooling water tank 15 is further provided on the base 1, and a cooling water circuit is provided in the automatic welding mechanism, and the cooling water circuit is connected to the cooling water tank 15. The cooling water tank delivers cooling water to the automatic welding mechanism, mainly to cool the automatic welding gun, and automatic welding is almost an uninterrupted operation, so cooling is particularly important.

[0031] In addition, an arc baffle 16 is provided on the base 1, and the arc baffle 16 is located between the two cladding stations. The arc baffle 16 can shield the arc generated during welding, so as to prevent the workers from being injured by the arc when loading materials at the cladding station on the other side.

[0032] In the present embodiment, a double-station cladding machine equipment using cold metal transfer is used. When the staff writes a program on the operation panel 11 in advance according to the type of workpiece, and then places the workpiece on the bracket 3 on the cladding station on one side, and adjusts the arc-shaped bracket 3 on the bracket 3 to a suitable angle. After the worker adjusts the tailstock 4 to be close to one end of the workpiece, he steps on the foot switch 13 oil cylinder 42 to make the top cone 41 extend and support the workpiece, and the other end of the workpiece is clamped on the swivel head frame 2 through the swivel chuck 21, so that the workpiece clamping is completed. Start the automatic welding mechanism, the truss 8 drives the automatic welding gun 7 to move to the welding position through the bottom slide seat to start automatic welding, the wire feeding mechanism 6 continuously delivers welding wire to the automatic welding gun 7, and the cooling water in the cooling water tank 15 during welding continues to cool down the automatic welding gun 7 to prevent its temperature from being too high; at the same time, the staff continues to clamp the workpiece to be welded at the cladding station on the other side. After the workpiece welding on the cladding station on one side is completed, the automatic welding mechanism is transferred to the cladding station on the other side to continue the welding operation, and so on.

[0033] The above description is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements without departing from the principle of the present invention, and these improvements should also be regarded as within the protection scope of the present invention.

Claims

1. A double-station cladding machine using cold metal transfer, characterized in that: It comprises a base (1) and an automatic welding mechanism, wherein the base (1) is provided with at least two cladding stations, each of the cladding stations comprising a rotary head frame (2), a bracket (3) and a tailstock (4); The turret head frame (2) is arranged at both ends of the base (1), the bracket (3) and the tailstock (4) are slidably arranged on the base (1), and the bracket (3) is located between the tailstock (4) and the turret head frame (2); A crossbeam (5) is provided on the base (1), the crossbeam (5) being arranged along the length direction of the base (1) and passing through two cladding stations, and the automatic welding mechanism is slidably arranged on the crossbeam (5).

2. The double-station cladding machine equipment using cold metal transfer according to claim 1 is characterized in that: The automatic welding mechanism comprises a wire feeding mechanism (6), an automatic welding gun (7), a truss (8) and a welding power source (9); the truss (8) is arranged on a crossbeam (5) via a slide seat; the wire feeding mechanism (6) is arranged on the truss (8); the automatic welding gun (7) is arranged at the end of the truss (8); the wire feeding mechanism (6) is connected to the automatic welding gun (7); and the welding power source (9) is arranged at one end of the base (1) and connected to the automatic welding gun (7).

3. The double-station cladding machine equipment using cold metal transfer according to claim 2 is characterized in that: A rotary chuck (21) is provided on the rotary head frame (2), and a top cone assembly is provided on the tailstock (4). The top cone assembly comprises a top cone (41) and an oil cylinder (42), and the oil cylinder (42) is connected to the top cone (41).

4. The double-station cladding machine equipment using cold metal transfer according to claim 3 is characterized in that: The bracket (3) comprises a chassis (31), a mounting box (32), a group of arc-shaped support blocks (33), forward and reverse screws (34), and a screw sleeve (35); the chassis (31) is slidably mounted on the base (1); the mounting box (32) has an upper opening and is arranged on the chassis (31); the forward and reverse screws (34) are rotatably arranged in the mounting box (32); the screw sleeve (35) is arranged on the forward and reverse screws (34); both ends of the screw sleeve (35) are hinged with push rods (36); one end of the arc-shaped support block (33) is rotatably arranged on the mounting box (32); and the middle part of the arc-shaped support block (33) is hinged to the other end of the push rod (36).

5. The double-station cladding machine equipment using cold metal transfer according to claim 4 is characterized in that: Locking pins (37) are provided on both sides of the chassis (31), and a hand wheel (38) is provided outside the installation box (32), and the hand wheel (38) is connected to the forward and reverse screw rods (34).

6. The double-station cladding machine equipment using cold metal transfer according to claim 5 is characterized in that: A hydraulic pump station (10) is also provided on one side of the base (1), and the hydraulic pump station (10) is connected to the oil cylinder (42).

7. The double-station cladding machine equipment using cold metal transfer according to claim 6 is characterized in that: A PLC electric control cabinet (12) and an operation panel (11) connected thereto are provided on one side of the base (1); the PLC electric control cabinet (12) is also connected to an automatic welding mechanism.

8. The double-station cladding machine equipment using cold metal transfer according to claim 7 is characterized in that: It also includes a foot switch (13) and barreled welding wire (14) arranged on the front and rear sides of the base, the foot switch (13) being connected to the hydraulic pump station (10), and the barreled welding wire (14) being connected to the wire feeding mechanism (6).

9. The double-station cladding machine equipment using cold metal transfer according to claim 8 is characterized in that: A cooling water tank (15) is also provided on the base (1), and a cooling water circuit is provided in the automatic welding mechanism, wherein the cooling water circuit is connected to the cooling water tank (15).

10. The double-station cladding machine equipment using cold metal transfer according to claim 9 is characterized in that: An arc baffle (16) is provided on the base (1), and the arc baffle (16) is located between two cladding stations.

Images