Clamp type automatic welding equipment for titanium sponge consumable electrode

Abstract

The utility model discloses pincer type automatic welding equipment for a titanium sponge consumable electrode, and belongs to the technical field of welding equipment. A bracket is included; a supporting structure and a pressing electric cylinder are arranged on the bracket; the supporting structure is used for placing the titanium sponge consumable electrode, and the pressing electric cylinder is used for ensuring that each end face of the titanium sponge consumable electrode is closely attached; a ground rail is arranged at the lower part of the bracket; a moving table is arranged on the ground rail; a clamp type welding mechanism used for welding a titanium sponge consumable electrode is arranged on the moving table; the pincer type welding mechanism comprises a left half pincer and a right half pincer, and an electric push rod used for driving the pincer type welding mechanism to be opened and closed is arranged on the moving table. And a welding gun is arranged on the clamp type welding mechanism. The welding device has the advantages of being good in welding effect, high in automation degree and the like.

Description

Technical Field

[0001] The utility model relates to welding equipment, in particular to clamp-type titanium sponge consumable electrode automatic welding equipment. Background Art

[0002] During the processing of vacuum consumable electrodes, a bench fixture is used for electrode positioning and assembly, and a handheld plasma torch is used for spot welding. After welding, the center of the weld is bright but the surrounding area is oxidized. At the same time, due to the high power and deep weld depth of the plasma torch, the end faces between the electrodes are severely oxidized. The oxidation of the sponge titanium electrode produces a large amount of oxides and nitrogen oxides. Although these harmful byproducts are purified during the vacuum melting process, they are difficult to remove because their melting point is higher than that of the parent material. The final finished ingots are scrapped due to excessive oxides, which greatly increases the company's quality costs. Summary of the Invention

[0003] In order to overcome the above-mentioned defects of the prior art, the utility model aims to provide a welding device with good welding effect and high degree of automation for sponge titanium consumable electrodes.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A clamp-type automatic welding device for a titanium sponge consumable electrode comprises a bracket; a supporting structure and a pressing electric cylinder are provided on the bracket; the supporting structure is used to place the titanium sponge consumable electrode, and the pressing electric cylinder is used to ensure that each end face of the titanium sponge consumable electrode is closely fitted; a ground rail is provided at the lower portion of the bracket; a movable platform is provided on the ground rail; a clamp-type welding mechanism for welding the titanium sponge consumable electrode is provided on the movable platform; the clamp-type welding mechanism comprises a left half clamp and a right half clamp, and an electric push rod is provided on the movable platform for driving the clamp-type welding mechanism to open and close; and a welding gun is provided on the clamp-type welding mechanism.

[0006] Preferably: the left half clamp and the right half clamp respectively include shells arranged opposite to each other on the front and rear sides; the bottom of the shells on the same side of the left half clamp and the right half clamp is provided with corresponding mounting holes, which are hinged on the mounting base through the mounting holes; the outer edges of the front and rear shells of the left half clamp and the right half clamp are provided with linkage holes, and the top of the electric push rod is provided with a connecting rod connecting the linkage holes; a left half clamp air hood and a right half clamp air hood are provided between the shells of the left half clamp and the right half clamp; the jaw angle of the right half clamp is greater than 180°; the inner side surface of the right half clamp air hood convex inwardly forms a tongue piece consistent with its curvature, and the welding gun is passed through the right half clamp air hood from the outside to the inside; a driven gear ring fixed to the right half clamp air hood is provided near the inner edge of the tongue piece, and the tongue piece is provided with a driving gear driven by a servo motor at both ends near the driven gear ring; the driven gear ring is meshed with the driving gear; the servo motor is arranged on the outer side of the right half clamp shell.

[0007] Preferably, the left half caliper air hood or the right half caliper air hood is provided with an air hood lock at the joint.

[0008] Preferably: the jaw angle of the right half clamp is 210°.

[0009] Preferably, a gear ring track adapted to the driven gear ring is fixedly provided in the right half-caliper housing.

[0010] Preferably, a gear ring retaining ring adapted to the position of the driven gear ring is fixedly provided in the right half-caliper housing.

[0011] Preferably, air inlet covers are provided on the front and rear sides of the housings of the left and right half pliers.

[0012] Preferably, an inflatable sealing strip is provided on the inner side edge of the shell of the left half clamp and the right half clamp.

[0013] Preferably, the front and rear edges of the inner sides of the left half-caliper air hood and the right half-caliper air hood are provided with ribs, and the left half-caliper air hood and the right half-caliper air hood are provided with air hood tracks adapted to the ribs at the joints.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. When the welding equipment of the present invention is in operation, after manual loading is completed, the equipment is started, and the subsequent welding operations are controlled by the PLC or host computer. After all welds are completed, manual unloading is performed. That is, the automated control process includes transporting the clamp-type welding mechanism to the weld to be welded via a ground rail, driving the clamp-type welding mechanism to open and close via an electric push rod to fix / release the clamp-type welding mechanism, and welding different welds in sequence. When welding the weld, the servo motor is started to drive the driving gear, which in turn drives the driven gear ring and the gas hood to move circumferentially within the clamp-type welding mechanism, that is, the welding gun welds circumferentially along the weld. Therefore, compared with the existing technology, this welding equipment has a high degree of automation and good welding effect when performing sponge titanium consumable electrode welding.

[0016] 2. The inflatable sealing strip ensures the sealing between the clamp welding mechanism and the inner edge of the workpiece. The left half clamp gas hood and the right half clamp gas hood ensure the sealing when the outer sides of the clamp welding mechanism are closed together, thereby ensuring a closed welding environment for the welding gun during welding. The protective gas (argon) is introduced into the inlet gas hood to further improve the welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the welding equipment;

[0018] Figure 2 This is the overall structure diagram of the clamp-type welding mechanism;

[0019] Figure 3 This is the exploded structure diagram of the clamp-type welding mechanism.

[0020] In the picture:

[0021] 1. Left half clamp; 2. Right half clamp; 3. Electric push rod; 3a. Connecting rod; 4. Support structure; 4a. Crossbeam; 4b. Support column; 5. Clamping cylinder; 6. Ground rail; 7. Moving table; 8. Bracket; 9. Titanium sponge consumable electrode; 10. Mounting base; 11. Welding gun; 12. Mounting hole; 13. Linkage hole

[0022] 1a, left half caliper air hood; 1b, air hood lock; 1c, through hole; 1k, 1k', left half caliper housing; 2k, 2k', right half caliper housing;

[0023] 2a, right half caliper air cover; 2b, tongue; 2c, driven ring gear; 2d, driving gear; 2e, servo motor; 2f, ring gear retaining ring; 2g, ring gear track;

[0024] 1j / 2j, air intake hood (1j, left half clamp air intake hood; 2j, right half clamp air intake hood); 1z / 2z, air hood track (1z, left half clamp air hood track; 2z, right half clamp air hood track); 1m / 2m, inflation sealing strip (1m, left half clamp inflation sealing strip; 2m right half clamp inflation sealing strip). DETAILED DESCRIPTION

[0025] The structure and principle of the present invention are now fully explained in conjunction with specific embodiments so that those skilled in the art can fully understand and implement them.

[0026] like Figures 1 to 3 As shown:

[0027] The present embodiment discloses a clamp-type titanium sponge consumable electrode welding device, comprising a bracket 8; a support structure 4 and a pressing electric cylinder 5 are provided on the bracket 8; the support structure 4 is used to place the titanium sponge consumable electrode 9, and the pressing electric cylinder 5 is used to ensure that each end face of the titanium sponge consumable electrode 9 is closely fitted; a ground rail 6 is provided at the lower part of the bracket 8; a movable platform 7 is provided on the ground rail 6; a clamp-type welding mechanism for welding the titanium sponge consumable electrode 9 is provided on the movable platform 7; the clamp-type welding mechanism comprises a left half clamp 1 and a right half clamp 2, and an electric push rod 3 for driving the clamp-type welding mechanism to open and close is provided on the movable platform 7; a welding gun 11 is provided on the clamp-type welding mechanism.

[0028] Among them, the support structure 4 includes a crossbeam 4a at the bottom and support columns 4b spaced apart on the crossbeam 4a. The sponge titanium consumable electrode 9 is supported and placed by the support columns 4b, and the weld is located between the support columns 4b; the clamping cylinder 5 is located at one end of the sponge titanium consumable electrode 9 (hereinafter referred to as the electrode) and is used to clamp the electrode after placement; when the upper jaws of the clamp-type welding mechanism are closed, a wrapping effect of the weld is formed, forming a sealed space for protective gas during welding, and a through hole 1c is provided in the lower part, which is used to accommodate the crossbeam 4a when clamping the electrode.

[0029] When in use, place the electrodes and press them tightly, drive the movable platform 7 to the welding position through the ground rail 6, drive the clamp welding mechanism through the electric push rod 3 to close the left and right clamp halves, and then weld the weld through the welding gun 11.

[0030] Further configuration: the left half-forceps 1 and the right half-forceps 2 respectively include shells arranged opposite to each other on the front and rear sides (the shells of the left half-forceps 1 in the figure are 1k and 1k'; the shells of the right half-forceps 2 are 2k and 2k'); the bottoms of the shells on the same side of the left half-forceps 1 and the right half-forceps 2 (i.e. 1k / 2k; 1k' / 2k') are provided with corresponding mounting holes 12, which are hinged to the mounting base 10 through the mounting holes 12; the outer edges of the front and rear shells of the left half-forceps 1 and the right half-forceps 2 are provided with linkage holes 13, and the electric push rod A connecting rod 3a is provided at the top of the pliers 3, connecting to the linkage hole 13. A left-half plier air hood 1a and a right-half plier air hood 2a are provided between the housings of the left and right pliers halves 1 and 2. (The left and right pliers air hoods 1a and 2a can be arranged in various ways. In this embodiment, the outer sides of the housings of the left and right pliers halves 1 and 2 are bent inward to form a retaining plate that holds the left and right pliers air hoods 1a and 2a, respectively, and the air hoods are secured within the housings.) The jaw angle β of the right pliers 2 is 210°. That is, when mounted on the mounting base 10, the left pliers housings 1k, 1k' and the left pliers air hood 1a form the left pliers, while the right pliers housings 2k, 2k' and the right pliers air hood 2a form the right pliers. A hood lock 1b is provided at the joint between the left pliers air hood 1a, which secures the left and right pliers air hoods together when closed.

[0031] Further features include: the inner side of the right half-caliper gas shield 2a is convexly formed with a tongue 2b having the same curvature as the inner side of the right half-caliper gas shield 2a; the welding gun 11 is positioned inside the right half-caliper gas shield 2a from the outside to the inside; a driven ring gear 2c is positioned near the inner edge of the tongue 2b, fixed to the right half-caliper gas shield 2a; and driving gears 2d driven by a servo motor 2e are positioned at both ends of the tongue 2b near the driven ring gear 2c; the driven ring gear 2c meshes with the driving gear 2d; the servo motor 2e is positioned on the outer side of the housing of the right half-caliper 2. With this configuration, when the clamp-type welding mechanism is in the closed position, the servo motor 2e drives the driving gear 2d, thereby causing the driven ring gear 2c to rotate circumferentially. This results in circumferential rotation of the right half-caliper gas shield 2a and the entire gas shield (together with the left half-caliper gas shield 1a), allowing the welding gun 11 to move along the weld seam to perform welding. Because the right half of the clamp 2 has a jaw angle greater than 180°, it can weld a complete circumferential seam. After a weld is completed, the servo motor 2e controls the return of the left and right half-clamp gas shields (1a / 2a) to their initial positions, opening the clamp-type welding mechanism and moving to the next weld for welding. In a preferred embodiment, the welding gun 11 is equipped with a depth-limiting wheel connected by a depth-limiting spring to limit the depth of the welding gun 11 and ensure a safe maximum distance between the welding gun 11 and the workpiece during welding. It should be noted that the welding gun 11 moves simultaneously with the driven ring gear 2c, so the rotational speed of the servo motors 2e at both ends must be consistent.

[0032] Preferably, a ring gear track 2g is fixedly mounted within the housing of the right half-caliper 2, adapted to the driven ring gear 2c. A ring gear retaining ring 2f is also fixedly mounted within the housing of the right half-caliper 2, adapted to the position of the driven ring gear 2c. The ring gear track 2g and the ring gear retaining ring 2f further ensure the stability of the circumferential movement of the driven ring gear 2c, improving the welding effect.

[0033] Preferably, air intake hoods 1j / 2j are provided on the front and rear sides of the housings of the left and right clamp halves 1 and 2, and air sealing strips 1m / 2m are provided on the inner edges of the housings of the left and right clamp halves 1 and 2. The air intake hoods 1j / 2j allow argon gas to flow inward during welding, while the sealing strips 1m / 2m prevent argon gas from leaking out, thereby improving protection and, consequently, welding quality.

[0034] Preferably, the front and rear edges of the inner surfaces of the left and right gas hood halves 1a and 2a are provided with ribs, and gas hood tracks 1z / 2z are provided at the joints of the left and right gas hood halves 1a and 2a to mate with the ribs. The ribs cooperate with the gas hood tracks 1z / 2z to stabilize the gas hood during circumferential rotation, improving overall structural stability during welding.

[0035] In summary, when welding titanium sponge consumable electrodes with this utility model, after manual loading is completed, the equipment is started, and subsequent welding operations are completed by PLC or host computer control. After all welds are completed, the material is unloaded. The overall welding process is highly automated, without manual welding operations, the welding effect is stable, and the excellent sealing greatly improves the welding quality.

[0036] The above embodiments are merely preferred embodiments of the present invention and are not intended to constitute any formal limitation on the present invention. Any person skilled in the art can, without departing from the technical principles and scope of the present invention, utilize the methods disclosed above to make many possible changes and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments with equivalent variations. Therefore, any combination, modification, or replacement of the technical features disclosed in the present invention based on the technical essence of the present invention, without departing from the principles or scope of the present invention, shall fall within the scope of protection of the technical solution of the present invention.

Claims

1. A clamp-type titanium sponge consumable electrode automatic welding equipment, characterized in that: The invention comprises a bracket (8); a supporting structure (4) and a pressing electric cylinder (5) are provided on the bracket (8); the supporting structure (4) is used for placing a titanium sponge consumable electrode (9), and the pressing electric cylinder (5) is used for ensuring that each end face of the titanium sponge consumable electrode (9) is closely fitted; a ground rail (6) is provided at the lower part of the bracket (8); a moving platform (7) is provided on the ground rail (6); a clamp-type welding mechanism for welding the titanium sponge consumable electrode (9) is provided on the moving platform (7); the clamp-type welding mechanism comprises a left half clamp (1) and a right half clamp (2), and an electric push rod (3) for driving the clamp-type welding mechanism to open and close is provided on the moving platform (7); and a welding gun (11) is provided on the clamp-type welding mechanism.

2. The clamp-type titanium sponge consumable electrode automatic welding equipment according to claim 1, characterized in that: The left half clamp (1) and the right half clamp (2) respectively include shells arranged opposite to each other on the front and rear sides; the bottoms of the shells on the same side of the left half clamp (1) and the right half clamp (2) are provided with corresponding mounting holes (12), which are hinged to the mounting base (10) through the mounting holes (12); the outer edges of the front and rear shells of the left half clamp (1) and the right half clamp (2) are provided with linkage holes (13), and the top of the electric push rod (3) is provided with a connecting rod (3a) connected to the linkage hole (13); a left half clamp air cover (1a) and a right half clamp air cover (2a) are provided between the shells of the left half clamp (1) and the right half clamp (2); the right half clamp ( 2) has a jaw angle greater than 180°; the inner side surface of the right half-clamp gas hood (2a) is convex inward to form a tongue (2b) with the same curvature, and the welding gun (11) is inserted into the right half-clamp gas hood (2a) from the outside to the inside; the tongue (2b) is provided with a driven gear ring (2c) fixed to the right half-clamp gas hood (2a) near the inner side edge, and the tongue (2b) is provided with a driving gear (2d) driven by a servo motor (2e) near both ends of the driven gear ring (2c); the driven gear ring (2c) is meshed with the driving gear (2d); the servo motor (2e) is arranged on the outer side surface of the shell of the right half-clamp (2).

3. The clamp-type titanium sponge consumable electrode automatic welding equipment according to claim 2, characterized in that: The left half caliper air hood (1a) or the right half caliper air hood (2a) is provided with an air hood lock (1b) at the joint.

4. The clamp-type titanium sponge consumable electrode automatic welding equipment according to claim 3, characterized in that: The jaw angle of the right half forceps (2) is 210°.

5. The clamp-type titanium sponge consumable electrode automatic welding equipment according to claim 4, characterized in that: A gear ring track (2g) adapted to the driven gear ring (2c) is fixedly provided in the housing of the right half-caliper (2).

6. The clamp-type titanium sponge consumable electrode automatic welding equipment according to claim 5, characterized in that: A gear ring retaining ring (2f) that is adapted to the position of the driven gear ring (2c) is fixedly provided in the housing of the right half-caliper (2).

7. A clamp-type titanium sponge consumable electrode automatic welding device according to any one of claims 1 to 6, characterized in that: The left half clamp (1) and the right half clamp (2) are provided with air intake covers (1j / 2j) on the front and rear sides of the housing.

8. The clamp-type titanium sponge consumable electrode automatic welding equipment according to claim 7, characterized in that: The inner edges of the shells of the left half clamp (1) and the right half clamp (2) are provided with inflatable sealing strips (1m / 2m).

9. The clamp-type titanium sponge consumable electrode automatic welding equipment according to claim 2, characterized in that: The front and rear edges of the inner sides of the left half-caliper air hood (1a) and the right half-caliper air hood (2a) are provided with ribs, and the left half-caliper air hood (1a) and the right half-caliper air hood (2a) are provided with air hood tracks (1z / 2z) adapted to the ribs at the joints.

Images