Semi-automatic argon arc welding machine for titanium alloy chain

Abstract

The invention relates to the technical field of titanium alloy chain welding, in particular to a semi-automatic argon arc welding machine for a titanium alloy chain, which comprises a moving pair, a chain adjusting device, a welding device and the titanium alloy chain, the bottom end of the moving pair is fixedly mounted on the ground, and two output ends are arranged at the top end of the moving pair; two chain adjusting devices used for clamping a titanium alloy chain and driving the titanium alloy chain to rotate are symmetrically and fixedly installed at the two output ends of the ball screw pair, and a welding device used for welding a chain ring seam in the titanium alloy chain is arranged between the two chain adjusting devices. The titanium alloy chain can be well welded, the defect of equipment for welding the titanium alloy chain in the prior art is overcome, and the limitation of large-scale application and popularization of the titanium alloy chain in the field of certain heavy equipment can be relieved.

Description

Technical Field

[0001] The invention relates to the technical field of titanium alloy chain welding, in particular to a semi-automatic argon arc welding machine for titanium alloy chains. Background Art

[0002] In the complex system of modern industrial production, chains are extremely critical transmission and conveying components, and their application range extends widely to many fields such as machinery manufacturing, automobile industry, mining equipment, and logistics transportation. In some specific special application scenarios, such as the operation system of large ships and the operating device of large cranes, there are extremely stringent requirements for chain strength. In order to meet this high-strength requirement, traditional carbon steel chains have to increase their manufacturing width, but this move inevitably leads to a significant increase in the weight of the chain itself. This large-sized chain has high requirements in the chain manufacturing process, material handling, implementation of processing technology, and in the subsequent transportation process, including loading and unloading, transportation tools, and control of transportation costs.

[0003] Titanium alloy chains, with their excellent physical properties, such as high strength and outstanding corrosion resistance, can be more ideally adapted to the above-mentioned special application scenarios. In terms of the welding process of titanium alloy chains, taking TC4 titanium alloy as an example, compared with the flash butt welding process commonly used for traditional chains, argon arc welding has obvious advantages in welding strength. However, there are currently few argon arc welding equipment specifically for titanium alloy chains. The lack of such equipment has largely limited the large-scale application and promotion of titanium alloy chains in certain heavy equipment fields. In order to effectively meet the needs of certain heavy equipment for titanium alloy chains, it is very important to focus on designing a semi-automatic argon arc welding machine specifically for titanium alloy chains. Summary of the invention

[0004] The object of the present invention is to provide a semi-automatic argon arc welding machine for titanium alloy chains to solve the technical problems existing in the above-mentioned background technology.

[0005] To achieve the above object, the technical solution of the present invention is as follows:

[0006] A semi-automatic argon arc welding machine for a titanium alloy chain comprises: a moving pair, a chain adjusting device, a welding device and a titanium alloy chain, wherein the bottom end of the moving pair is fixedly mounted on the ground, the top end of the moving pair is provided with two output ends, two chain adjusting devices for clamping the titanium alloy chain and driving the titanium alloy chain to rotate are symmetrically fixedly mounted on the two output ends of the ball screw pair, and a welding device for welding the chain link joints in the titanium alloy chain is provided between the two chain adjusting devices.

[0007] Furthermore, the moving pair includes: a displacement platform, a horizontal slider, a screw rod and a servo motor. Two horizontal slide grooves are symmetrically provided on the left and right sides of the top of the displacement platform. Two horizontal sliders, two screw rods and two servo motors are each provided with two. The two horizontal sliders are respectively connected in the two horizontal slide grooves for horizontal sliding. The two screw rods respectively penetrate and are threadedly connected to the two horizontal sliders. The outer ends of the two screw rods that are opposite to each other are respectively fixedly connected to the output ends of the two servo motors.

[0008] Furthermore, the movable pair also includes: bearings, four of which are provided, and the outer ends of the two screws facing each other respectively penetrate and rotatably connect the left and right ends of the displacement platform, and the two screws are rotatably installed on the left and right sides of the displacement platform through four bearings.

[0009] Furthermore, the chain adjustment device includes: an L-shaped support, a hollow rotating platform and a pneumatic circular chuck, the bottom end of the L-shaped support is fixedly connected to the top of the horizontal slider corresponding to it, the hollow rotating platform is fixedly installed on the inner side of the upper part of the L-shaped support, and the output end of the hollow rotating platform is coaxially fixedly installed with a pneumatic circular chuck, the upper part of the L-shaped support is provided with a through hole one, the middle part of the hollow rotating platform is provided with a through hole two that passes horizontally, the through hole one and the through hole two are of the same size and are coaxially arranged, the pneumatic circular chuck is provided with a cross-shaped through hole that matches the chain links that are horizontally and vertically interlocked in the titanium alloy chain, the titanium alloy chain moves horizontally through the through hole one and the through hole two, and the titanium alloy chain slides horizontally through the cross-shaped through hole.

[0010] Furthermore, the hollow rotating platform can drive the pneumatic circular chuck to rotate axially, and the pneumatic circular chuck is provided with a pneumatic clamping mechanism, and the pneumatic clamping mechanism is used to clamp or loosen the titanium alloy chain in the horizontal and vertical directions.

[0011] Furthermore, one side of the titanium alloy chain having a chain link joint is laterally slidably connected to the lower end of the cross-shaped perforation, and the transverse axis of the side of the titanium alloy chain having a chain link joint is colinear with the axis of the pneumatic circular chuck.

[0012] Furthermore, the welding device includes: a gantry-type frame, an argon arc welding gun, a sliding sleeve, a screw rod and a servo motor. The argon arc welding gun, the sliding sleeve, the screw rod and the servo motor are all symmetrically arranged in two in the front and rear directions. Two sliding holes are symmetrically opened on the front and rear sides of the gantry-type frame. The two argon arc welding guns are symmetrically arranged on the inner ends facing each other of the gantry-type frame and respectively cooperate with the chain link joints on the titanium alloy chain. The two argon arc welding guns are symmetrically fixedly connected to two sliding sleeves on the opposite sides of the two argon arc welding guns. The two sliding sleeves are respectively lateral limited and slidably connected in the two sliding holes. The inner sides of the two sliding sleeves are respectively threadedly connected to two screw rods. The outer ends of the two screw rods are fixedly connected to the output end of the servo motor. The two servo motors are symmetrically fixedly installed on the front and rear ends of the gantry-type frame.

[0013] Furthermore, the welding device also includes: a pipeline and a wire feeding nozzle, the pipeline is L-shaped and two are symmetrically arranged front to back, the vertical bottom ends of the two pipelines are symmetrically fixedly installed on the top ends of the two argon arc welding guns, the gantry-type frame has two sliding holes symmetrically opened above the two sliding holes 1, the transverse parts of the two pipelines respectively penetrate horizontally and slidably connect the two sliding holes 2, the inside of the pipeline is penetrated with welding wire, water pipes and electric wires transported by the wire feeder, two wire feeding nozzles are arranged, the two wire feeding nozzles are symmetrically fixedly installed on the bottom ends of the two argon arc welding guns and aligned with the chain link joints of the titanium alloy chain, and the welding wire passed through the inside of the pipeline is passed out from the wire feeding nozzle.

[0014] Furthermore, the argon arc welding gun is L-shaped, and the head of the argon arc welding gun can extend into the interior of the chain link of the titanium alloy chain.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The titanium alloy chain to be welded is installed and fixed on two chain adjustment devices, and the chain link joints of the titanium alloy chain are welded by a special argon arc welding gun in the welding device. During the welding process, the hollow rotating platforms in the two chain adjustment devices drive the titanium alloy chain fixed on the pneumatic circular chuck to rotate axially along the side of the titanium alloy chain with the chain link joint, and cooperate with two symmetrically arranged argon arc welding guns to achieve full welding of the chain link joint; the entire device can well realize the welding of the titanium alloy chain, make up for the lack of equipment for titanium alloy chain welding in the existing technology, and can remove the restrictions on large-scale application and promotion of titanium alloy chains in certain heavy equipment fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 is a transverse longitudinal sectional view of the present invention;

[0019] Figure 3 is a longitudinal sectional view of the present invention at the argon arc welding gun;

[0020] Figure 4 It is a cross-sectional view of the present invention at the cross-shaped perforation.

[0021] The numbers in the accompanying drawings are: 1-displacement platform, 2-horizontal slider, 3-screw rod one, 4-servo motor one, 5-bearing, 6-L-shaped support, 601-perforation one, 7-hollow rotating platform, 701-perforation two, 8-pneumatic circular chuck, 801-cross perforation, 9-gantry frame, 10-pipeline, 11-argon arc welding gun, 12-wire feeding nozzle, 13-servo motor two, 14-titanium alloy chain. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] See also Figures 1 to 4 As shown, a semi-automatic argon arc welding machine for titanium alloy chains includes: a moving pair, a chain adjusting device, a welding device and a titanium alloy chain 14. The bottom end of the moving pair is fixedly installed on the ground, and the top end of the moving pair is provided with two output ends. Two chain adjusting devices for clamping the titanium alloy chain 14 and driving the titanium alloy chain 14 to rotate are symmetrically fixedly installed on the two output ends of the ball screw pair, and a welding device for welding the chain link joints in the titanium alloy chain 14 is provided between the two chain adjusting devices.

[0024] The moving pair includes: a displacement platform 1, a horizontal slider 2, a screw rod 3 and a servo motor 4. Two horizontal slide grooves 101 are symmetrically opened on the left and right sides of the top of the displacement platform 1. Two horizontal sliders 2, screw rods 3 and servo motors 4 are each provided with two. The two horizontal sliders 2 are respectively horizontally slidably connected in the two horizontal slide grooves 101. The two screw rods 3 penetrate and are threadedly connected to the two horizontal sliders 2 respectively. The outer ends of the two screw rods 3 facing away from each other are respectively fixedly connected to the output ends of the two servo motors 4; the moving pair also includes: bearings 5. Four bearings 5 ​​are provided. The outer ends of the two screw rods 3 facing away from each other penetrate and are rotatably connected to the left and right ends of the displacement platform 1 respectively. The two screw rods 3 are rotatably installed on the left and right sides of the displacement platform 1 through four bearings 5 ​​respectively. By driving the two servo motors 4 to work respectively, the two horizontal sliders 2 and the chain adjustment device installed on the top of them are driven to move left and right, which is convenient for real-time adjustment according to the needs of welding.

[0025] The chain adjustment device includes: an L-shaped support 6, a hollow rotating platform 7 and a pneumatic circular chuck 8. The bottom end of the L-shaped support 6 is fixedly connected to the top end of the corresponding horizontal slider 2. The hollow rotating platform 7 is fixedly installed on the inner side of the upper part of the L-shaped support 6. The output end of the hollow rotating platform 7 is coaxially fixedly installed with a pneumatic circular chuck 8. A through hole 1 601 is provided on the upper part of the L-shaped support 6, and a through hole 2 701 is provided in the middle part of the hollow rotating platform 7 to penetrate horizontally. The through hole 1 601 and the through hole 2 701 are of the same size and are coaxially arranged. The pneumatic circular chuck 8 is provided with a cross-shaped through hole 801 that matches the chain links in the titanium alloy chain 14 that are interlocked horizontally and vertically. The titanium alloy chain 14 moves horizontally through the through hole 1 601 and the through hole 2 701, and the titanium alloy chain 14 slides horizontally through the cross-shaped through hole 801.

[0026] The hollow rotating platform 7 can drive the pneumatic circular chuck 8 to rotate axially. The hollow rotating platform includes: a fixed seat, a rotating seat and a servo drive motor. The rotating seat is axially rotatably installed on the fixed seat, and the servo drive motor is fixedly installed on the fixed seat. The output end of the servo drive motor drives the rotating seat to rotate through gear transmission, wherein the fixed seat is fixedly installed on the L-shaped support 6, and the pneumatic circular chuck 8 is fixedly installed on the rotating seat; a pneumatic clamping mechanism is arranged on the pneumatic circular chuck 8 (not drawn in the accompanying drawings, the pneumatic circular chuck 8 in this device is basically the same as the existing pneumatic circular chuck structure on the market, the only difference is that a cross-shaped through hole 801 is opened on the pneumatic circular chuck 8 in this device), the pneumatic clamping mechanism is used for horizontal and vertical clamping or loosening of the titanium alloy chain 14, and the power input end of the pneumatic clamping mechanism is connected to the air pressure control device, and the air pressure control device is used to control the pneumatic clamping mechanism on the circular chuck 8 to clamp or loosen.

[0027] The titanium alloy chain 14 has one side of a chain link joint which is laterally slidably connected to the lower end of the cross-shaped perforation 801, and the transverse axis of the side of the chain link joint of the titanium alloy chain 14 is colinear with the axis of the pneumatic circular chuck 8. When the hollow rotating platform 7 drives the pneumatic circular chuck 8 to rotate and drives the titanium alloy chain 14 to rotate, the side of the titanium alloy chain 14 with the chain link joint undergoes axial rotation, and cooperates with two welding devices to achieve full welding of the chain link joint.

[0028] The welding device includes: a gantry-type frame 9, an argon arc welding gun 11, a sliding sleeve, a screw rod 2 and a servo motor 2 13. The argon arc welding gun 11, the sliding sleeve, the screw rod 2 and the servo motor 2 13 are all symmetrically arranged in two front and rear directions. Two sliding holes 1 are symmetrically opened on the front and rear sides of the gantry-type frame 9. The two argon arc welding guns 11 are symmetrically arranged on the inner side ends facing each other of the gantry-type frame 9 and respectively cooperate with the chain link joints on the titanium alloy chain 14. The two argon arc welding guns 11 are symmetrically fixedly connected with two sliding sleeves on the opposite sides. The two sliding sleeves are respectively lateral limited slidingly connected in the two sliding holes 1. The inner sides of the two sliding sleeves are respectively threadedly connected with two screw rods 2. The outer ends of the two screw rods 2 are fixedly connected with the output ends of the servo motor 2 13. The two servo motors 2 13 are symmetrically fixedly installed on the front and rear ends of the gantry-type frame 9. The rotation of the servo motor 2 13 drives the screw rod 2 to rotate, thereby driving the sliding sleeve and the argon arc welding gun 11 to approach or move away from the titanium alloy chain 14.

[0029] The welding device also includes: a pipeline 10 and a wire feeding nozzle 12. The pipeline 10 is L-shaped and two are symmetrically arranged front and back. The vertical bottom ends of the two pipelines 10 are symmetrically fixedly installed on the top ends of the two argon arc welding guns 11. The gantry-type frame 9 has two sliding holes 2 symmetrically opened above the two sliding holes 1. The transverse parts of the two pipelines 10 respectively penetrate horizontally and slide to connect the two sliding holes 2. The inside of the pipeline 10 is penetrated with welding wire, water pipes and electric wires transported by a wire feeder. Two wire feeding nozzles 12 are arranged. The two wire feeding nozzles 12 are symmetrically fixedly installed at the bottom ends of the two argon arc welding guns 11 and aligned with the chain link joints of the titanium alloy chain 14. The welding wire passed through the inside of the pipeline 10 is passed out from the wire feeding nozzle 12.

[0030] The argon arc welding gun 11 is L-shaped, with a long long side and a short short side. The head of the argon arc welding gun 11 can extend into the interior of the chain link of the titanium alloy chain 14 .

[0031] When the device is in use, first loosen the two special pneumatic circular chucks 8, place the chain links of the titanium alloy chain 14 in the correct clamping position, and then clamp the titanium alloy chain 14 through the two pneumatic circular chucks 8. At this time, the position of the titanium alloy chain 14 is fixed, and the welding device is located between the two chain adjustment devices. (Due to the structural characteristics of the chain and the design mechanism of the pneumatic circular chuck 8, the welding of the chain links is interval welding. In short, if the chain links are numbered from 1 to 12, only chain links 1, 3, 5, 7, 9, and 11 are welded in the first welding process. The second welding process is for chain links 2, 4, 6, 8, 10, and 12, so the entire chain needs to undergo two welding processes.) After completing the preparation work, in the welding device, the front servo motor 13 first drives the special argon arc welding gun 11 through a threaded transmission to complete the longitudinal movement. When it reaches the specified position, the welding switch is turned on, and the hollow rotating platform rotates at the same time, cooperating with the servo drive motor of the chain adjustment device to complete the partial welding of the first chain. The area that a single welding gun can weld is limited. At this time, the front argon arc welding gun 11 is controlled by the front servo motor 13 to return to the initial position, and the rear argon arc welding gun 11 is welded in the same way. The front and rear argon arc welding guns 1 cooperate to achieve full and complete welding of the chain links;

[0032] After welding one chain link, one of the chain adjustment devices remains stationary and releases the special pneumatic circular chuck 8, while the other chain adjustment device is clamped and moved on the moving pair to pull the second chain link to be processed to the appropriate position, and the chain adjustment device that has just been loosened is clamped again, and the other chain adjustment device releases the pneumatic circular chuck 8 and moves to the appropriate position through the moving pair and then clamps again to continue welding the second chain link, and this process is repeated until half of the chain welding of the last chain link is completed; then the titanium alloy chain 14 is taken out and the direction is adjusted to complete the second welding process according to the above process.

[0033] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inside", "outside", "top / bottom" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any technician familiar with the profession, without departing from the scope of the technical solution of the present invention, according to the technical essence of the present invention, any simple modification, equivalent replacement and improvement made to the above embodiment still falls within the protection scope of the technical solution of the present invention.

Claims

1. A semi-automatic argon arc welding machine for titanium alloy chains, characterized in that: include: A movable pair, a chain adjustment device, a welding device and a titanium alloy chain (14), wherein the bottom end of the movable pair is fixedly mounted on the ground, the top end of the movable pair is provided with two output ends, two chain adjustment devices for clamping the titanium alloy chain (14) and driving the titanium alloy chain (14) to rotate are symmetrically fixedly mounted on the two output ends of the ball screw pair, and a welding device for welding the chain link seams in the titanium alloy chain (14) is provided between the two chain adjustment devices.

2. A semi-automatic argon arc welding machine for titanium alloy chains according to claim 1, characterized in that: The movable pair comprises: a displacement platform (1), a horizontal slider (2), a screw rod (3) and a servo motor (4); two horizontal slide grooves (101) are symmetrically provided on the left and right sides of the top of the displacement platform (1); two horizontal sliders (2), screw rods (3) and servo motors (4) are each provided with two; the two horizontal sliders (2) are respectively slidably connected in the two horizontal slide grooves (101); the two screw rods (3) respectively penetrate and are threadedly connected to the two horizontal sliders (2); and the outer ends of the two screw rods (3) facing away from each other are respectively fixedly connected to the output ends of the two servo motors (4).

3. A semi-automatic argon arc welding machine for titanium alloy chains according to claim 2, characterized in that: The movable pair further comprises: a bearing (5), wherein four bearings (5) are provided, and the outer ends of the two screw rods (3) facing away from each other respectively penetrate and rotatably connect the left and right ends of the displacement platform (1), and the two screw rods (3) are rotatably mounted on the left and right sides of the displacement platform (1) through the four bearings (5).

4. A semi-automatic argon arc welding machine for titanium alloy chains according to claim 2, characterized in that: The chain adjustment device comprises: an L-shaped support (6), a hollow rotating platform (7) and a pneumatic circular chuck (8); the bottom end of the L-shaped support (6) is fixedly connected to the top end of the corresponding horizontal slider (2); the hollow rotating platform (7) is fixedly installed on the inner side of the upper part of the L-shaped support (6); the pneumatic circular chuck (8) is coaxially fixedly installed on the output end of the hollow rotating platform (7); a through hole (601) is opened on the upper part of the L-shaped support (6); the hollow rotating platform (7) is fixedly installed on the inner side of the upper part of the L-shaped support (6); (7) A second through hole (701) is provided in the middle thereof and runs horizontally therethrough. The first through hole (601) and the second through hole (701) are of the same size and are coaxially arranged. The pneumatic circular chuck (8) is provided with a cross-shaped through hole (801) that matches the chain links that are interlocked horizontally and vertically in the titanium alloy chain (14). The titanium alloy chain (14) moves horizontally through the first through hole (601) and the second through hole (701). The titanium alloy chain (14) slides horizontally through the cross-shaped through hole (801).

5. A semi-automatic argon arc welding machine for titanium alloy chains according to claim 4, characterized in that: The hollow rotating platform (7) can drive the pneumatic circular chuck (8) to rotate axially. The pneumatic circular chuck (8) is provided with a pneumatic clamping mechanism, which is used to clamp or loosen the titanium alloy chain (14) in the horizontal and vertical directions.

6. A semi-automatic argon arc welding machine for titanium alloy chains according to claim 5, characterized in that: The titanium alloy chain (14) has a side with a chain link seam which is laterally slidably connected to the lower end of the cross-shaped perforation (801), and the transverse axis of the side with the chain link seam of the titanium alloy chain (14) is colinear with the axis of the pneumatic circular chuck (8).

7. A semi-automatic argon arc welding machine for titanium alloy chains according to claim 6, characterized in that: The welding device comprises: a gantry-type frame (9), an argon arc welding gun (11), a sliding sleeve, a screw rod and a servo motor (13); the argon arc welding gun (11), the sliding sleeve, the screw rod and the servo motor (13) are all symmetrically arranged in two in the front and rear directions; two sliding holes (1) are symmetrically opened on the front and rear sides of the gantry-type frame (9); the two argon arc welding guns (11) are symmetrically arranged on the inner side ends facing each other of the gantry-type frame (9) and respectively cooperate with the chain link joints on the titanium alloy chain (14); the two sliding sleeves are symmetrically fixedly connected to the two sliding holes (1) on the opposite sides of the two argon arc welding guns (11); the two sliding sleeves are respectively lateral limited and slidably connected in the two sliding holes (1); the inner sides of the two sliding sleeves are respectively threadedly connected to two screw rods (2); the outer ends of the two screw rods (2) are fixedly connected to the output end of the servo motor (13); and the two servo motors (13) are symmetrically fixedly installed on the front and rear ends of the gantry-type frame (9).

8. A semi-automatic argon arc welding machine for titanium alloy chains according to claim 7, characterized in that: The welding device further comprises: a pipeline (10) and a wire feeding nozzle (12); the pipeline (10) is L-shaped and two are symmetrically arranged front and back; the vertical bottom ends of the two pipelines (10) are symmetrically fixedly mounted on the top ends of the two argon arc welding guns (11); the gantry-type frame (9) is symmetrically provided with two sliding holes (2) above the two sliding holes (1); the transverse parts of the two pipelines (10) respectively penetrate the two sliding holes (2) transversely and are slidably connected; the inside of the pipeline (10) is provided with welding wire, water pipes and electric wires transported by a wire feeder; two wire feeding nozzles (12) are arranged; the two wire feeding nozzles (12) are symmetrically fixedly mounted on the bottom ends of the two argon arc welding guns (11) and are aligned with the chain link joints of the titanium alloy chain (14); the welding wire inserted in the inside of the pipeline (10) is passed out by the wire feeding nozzle (12).

9. A semi-automatic argon arc welding machine for titanium alloy chains according to claim 8, characterized in that: The argon arc welding gun (11) is L-shaped, and the head of the argon arc welding gun (11) can extend into the interior of a chain link of a titanium alloy chain (14).

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