CN115740805A - Novel gantry double-mechanical-arm laser cladding equipment - Google Patents

Abstract

The invention relates to novel gantry double-mechanical-arm laser cladding equipment which comprises a gantry beam, wherein a bidirectional symmetrical laser processing device is arranged below the gantry beam, one end of a mounting plate is movably connected with one end of a joint rotary type mechanical arm, the other end of the joint rotary type mechanical arm is fixedly connected with a fixing seat, a laser cladding head is fixedly connected with a rotating shaft through a connecting rod, chains are arranged on the inner walls of sliding grooves on two sides of a base, the other end of a first screw rod extends to the outer part of the other end of the base and is connected with a first gear, the first screw rod is clamped and connected with the chains through a second gear when penetrating through the inner part of the sliding groove, a third gear is further arranged on one side of the first gear in the vertical direction and is meshed and connected with the third gear, a first motor is arranged at one end of the third gear and is electrically connected with the third gear, and the other end of each roller extends to the inner part of the other end of a contraction type frame and is clamped and connected with the chains. The invention further improves the cladding efficiency, shortens the processing period and brings good processing effect.

Description

A new type of gantry double robot arm laser cladding equipment

technical field

The invention relates to the technical field of laser cladding equipment, in particular to a novel gantry double-arm laser cladding equipment.

Background technique

Laser cladding, also known as laser cladding or laser cladding, is a new surface modification technology. It forms a metallurgically bonded cladding layer on the surface of the base by adding cladding materials on the surface of the substrate and using a high-energy-density laser beam to fuse it together with the thin layer on the surface of the substrate. The cladding layer has low dilution but strong binding force, and is metallurgically bonded to the substrate, which can significantly improve the wear resistance, corrosion resistance, heat resistance, oxidation resistance or electrical properties of the substrate material surface, so as to achieve the purpose of surface modification or repair, and meet the requirements of A large amount of material cost can be saved while meeting the specific performance requirements of the material surface. Laser cladding technology is a method of synchronously or pre-setting materials, adding external materials to the surface of the substrate after laser irradiation to form a molten pool, and making the two rapidly solidify together to form a coating process. At present, most laser cladding equipment works with a single mechanical arm and a deceleration chuck. However, due to the large size of some large bearing parts, long repair cycle, low efficiency, and processing accuracy to be improved, the existing equipment can no longer meet this production condition.

Contents of the invention

(1) Technical problems to be solved

Aiming at the deficiencies of the prior art, the object of the present invention is to provide a novel gantry double robot arm laser cladding equipment.

(2) Technical solution

In order to solve the above-mentioned technical problems, the present invention provides a novel gantry double-manipulator laser cladding equipment, including a gantry bracket, a gantry beam, a workpiece to be processed, a movable working platform, and a bidirectionally symmetrical laser processing device under the gantry beam , the laser processing device includes a mounting plate, a articulated rotatable mechanical arm, a fixed seat, a rotating shaft and a laser cladding head. The mounting plate is fixedly installed on the lower surface of the gantry beam, and one end of the mounting plate is flexibly connected to one end of the articulated rotatable mechanical arm. , the other end of the articulated rotatable mechanical arm is fixedly connected to the fixed seat, and the fixed seat is movably connected with a rotating shaft. The laser cladding head is fixedly connected to the rotating shaft through a connecting rod. The movable working platform includes a base, a telescopic frame and several The roller is provided with chute on both sides of the base, and a group of chains are arranged on the inner wall of the chute, and one end on one side of the base is rotationally connected with one end of the first screw rod, and the other end of the first screw rod extends to the outside of the other end of the base and is connected with The first gear, the first screw rod and the roller near the outermost side of the telescopic frame pass through the inside of the chute and are engaged with the chain through the second gear. One end of the third gear is provided with the first motor and its electric motor. Sexual connection, one end of one side of the telescopic frame is rotationally connected with one end of the roller, and the other end of each roller extends to the inside of the other end of the retractable frame and is connected with the chain. The workpiece to be processed is set on the roller of the movable working platform superior.

The interior of the above-mentioned gantry beam is provided with two symmetrically arranged second screws, one end of the second screw is electrically connected to the second motor, the top of the mounting plate is provided with a first slider, and the second screw sleeve is provided with a threaded sleeve. The first slide block is fixedly connected with the threaded sleeve.

The above-mentioned laser processing device also includes an electric lifting column and a connecting block, the mounting plate is fixedly connected to one end of the connecting block through the electric lifting column, and the other end of the connecting block is movably connected to one end of the articulated rotatable mechanical arm.

The vertical height of the above-mentioned first screw is the same as that of the drum.

The above-mentioned laser cladding head is used to emit laser beams.

Both sides of the above-mentioned base are provided with limit fixtures, and the limit fixtures include a fixed clamp block, an electric push rod, a slide rail and a second slide block, the slide rails are arranged above the two sides of the base, and one end of the electric push rod is connected with a fixed clamp block, The other end is fixedly connected with the second slider, and the second slider is slidably connected with the slide rail.

A rubber pad is provided on the side of the above-mentioned fixed clamp block facing the workpiece to be processed.

The above-mentioned fixed clamping block is adapted to the shape of the workpiece to be processed.

(3) Beneficial effects

Compared with prior art, the beneficial effect of the present invention is:

1. The present invention provides a new type of gantry double-arm laser cladding equipment. Two symmetrically arranged second screws are arranged inside the gantry beam. The second motor drives the second screw to rotate and also drives the threaded sleeve to rotate. It will drive the first slider on the mounting plate to move horizontally, thereby driving the two-way laser processing device to move relatively horizontally. Secondly, the laser processing device is also equipped with an electric lifting column to drive the articulated rotating mechanical arm to move up and down. Movement, and the movable working platform drives the third gear to rotate through the first motor, thereby driving the first gear to rotate. Since a set of chains are arranged inside the chute on both sides of the base, the rotation of the first gear drives the engagement on the chain The second gear of the motor rotates, thereby driving the rotation of the chain, and then when the telescopic frame is pushed to merge with the base, the entire movable working platform can be installed. When the first motor starts, several rollers on the telescopic frame rotate , the workpiece to be processed placed on the drum moves forward and backward along the movable working platform; the present invention moves forward and backward, left and right, up and down in multiple directions, plus multi-angle adjustment of the articulated and rotatable mechanical arm, thereby setting the articulated The working range of the rotating mechanical arm is combined with the rotation of several rollers to realize the adjustment of the cladding area. Compared with the traditional laser cladding equipment, it realizes more diversified position adjustments, making the position adjustments more accurate, and at the same time through the workpiece to be processed It is clamped on the limit fixture, so as to facilitate the reasonable clamping and fixing of the workpiece to be processed during operation, so as to avoid the deviation of the workpiece to be processed during the processing and ensure a good processing effect.

2. The present invention provides a new gantry double-arm laser cladding equipment. The laser cladding head is driven by the joint-rotatable robotic arm to simultaneously strengthen and repair the inner and outer surfaces of the workpiece to be processed. This equipment further improves the cladding efficiency and shortens the the processing cycle;

3. The present invention provides a new gantry double-arm laser cladding equipment. The two-way laser processing device further shortens the product warm-up time while cladding; and the two-way laser processing device adopts two-way repair to avoid stress Concentrated areas cause deformations in the workpiece to be machined.

Description of drawings

The present invention is described in detail below in conjunction with accompanying drawing and specific embodiment;

1 is a three-dimensional schematic view of the overall structure of the present invention;

Fig. 2 is a three-dimensional schematic diagram of a local structure at A in Fig. 1 of the present invention;

Fig. 3 is a schematic diagram of the planar structure of the telescopic frame of the present invention;

Fig. 4 is a schematic diagram of the internal plane structure of the gantry beam of the present invention;

Fig. 5 is a side view of the internal plane structure of the chute on both sides of the telescopic frame of the present invention;

Fig. 6 is a schematic plan view of the planar structure of the limiting clamp of the present invention.

The marks in the drawings are: gantry support 1, gantry beam 2, workpiece to be processed 3, movable working platform 4, mounting plate 5, joint-rotatable mechanical arm 6, fixed seat 7, rotating shaft 8, laser cladding head 9. Base 10, telescopic frame 11, roller 12, chute 13, chain 14, first screw 15, first gear 16, second gear 17, third gear 18, first motor 19, second screw 20, The second motor 21, the first slider 22, the threaded sleeve 23, the electric lifting column 24, the connection block 25, the laser beam 26, the limit fixture 27, the fixed clamp block 28, the electric push rod 29, the slide rail 30, the second slide Block 31, rubber pad 32.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

As shown in Figure 1, the present invention provides a new type of gantry double-arm laser cladding equipment, including gantry support 1, gantry beam 2, workpiece 3 to be processed, movable working platform 4, and a bidirectional symmetrical The laser processing device includes a mounting plate 5, a joint-rotatable mechanical arm 6, a fixed seat 7, a rotating shaft 8, and a laser cladding head 9. The mounting plate 5 is fixedly installed on the lower surface of the gantry beam 2, and the mounting plate 5 One end is movably connected with one end of the articulated rotatable mechanical arm 6, and the other end of the articulated rotatable mechanical arm 6 is fixedly connected with the fixed seat 7, and the fixed seat 7 is movably connected with a rotating shaft 8 inside, and the laser cladding head 9 is connected to the The rotating shaft 8 is fixedly connected, and the movable working platform 4 includes a base 10, a telescopic frame 11 and several rollers 12. Both sides of the base 10 are provided with chute 13, and a group of chains 14 are arranged on the inner wall of the chute 13. The base 10- One end of the side is rotationally connected with one end of the first screw rod 15, and the other end of the first screw rod 15 extends to the outside of the other end of the base 10 and is connected with a first gear 16, the first screw rod 15 and the outermost roller near the telescopic frame 11 When passing through the inside of the chute 13, the second gear 17 is engaged with the chain 14, and one end of the third gear 18 is provided with a first motor 19 to be electrically connected to it, and one end of the telescopic frame 11 is connected to the roller One end of 12 is rotatably connected, and the other end of each cylinder 12 extends to the inside of the other end of the retractable frame and is connected with the chain 14. The workpiece 3 to be processed is arranged on the cylinder 12 of the movable working platform 4 .

Further, two symmetrically arranged second screw rods 20 are arranged inside the gantry beam 2, and one end of the second screw rod 20 is electrically connected to a second motor 21, and a first slider 22 is arranged above the mounting plate 5, and a second The screw rod 20 is covered with a threaded sleeve 23 , and the first slider 22 is fixedly connected with the threaded sleeve 23 .

Further, the laser processing device also includes an electric lifting column 24 and a connecting block 25, the mounting plate 5 is fixedly connected to one end of the connecting block 25 through the electric lifting column 24, and the other end of the connecting block 25 is flexibly connected to one end of the articulated rotating mechanical arm 6 .

Further, the vertical height of the first screw 15 and the drum 12 is the same.

Further, the laser cladding head 9 is used to emit a laser beam 26 .

Further, both sides of the base 10 are provided with limit clamps 27, the limit clamps 27 include a fixed clamp block 28, an electric push rod 29, a slide rail 30 and a second slide block 31, and the slide rails 30 are arranged above the two sides of the base 10, One end of the electric push rod 29 is connected to the fixed clip 28 , and the other end is fixedly connected to the second slider 31 , and the second slider 31 is slidably connected to the slide rail 30 .

Further, a rubber pad 32 is provided on the side of the fixed clamp block 28 facing the workpiece 3 to be processed.

Further, the fixed clamping block 28 is adapted to the shape of the workpiece 3 to be processed.

Working principle of the present invention: when using the device, firstly, two symmetrically arranged second screw rods 20 are arranged inside the gantry beam 2, and the second motor 21 drives the second screw rod 20 to rotate, and also drives the threaded sleeve 23 to rotate , it will drive the first slider 22 on the mounting plate 5 to move laterally, thereby driving the two-way laser processing device to move relatively horizontally. The arm 6 moves up and down, and the movable working platform 4 drives the third gear 18 to rotate through the first motor 19, thereby driving the first gear 16 to rotate. Because a group of chains are arranged inside the chute 13 on both sides of the base 10 14. The rotation of the first gear 16 drives the card and the second gear 17 on the chain 14 to rotate, thereby driving the rotation of the chain 14, and then when the telescopic frame 11 is pushed to merge with the base 10, the entire movable Working platform 4, when the first motor 19 starts, several rollers 12 on the telescopic frame 11 rotate, and the workpiece 3 to be processed placed on the rollers 12 moves back and forth along the movable working platform 4; , left and right, up and down multi-directional movement, plus the multi-angle adjustment of the articulated rotatable manipulator 6, so as to set the working range of the articulated rotatable manipulator 6, and cooperate with the rotation of several rollers 12 to realize the adjustment of the cladding area. Compared with traditional laser cladding equipment, it realizes a more diversified position adjustment, making the position adjustment more accurate, and at the same time, the workpiece 3 to be processed is clamped on the limit fixture 27, so that it is convenient to carry out reasonable positioning of the workpiece 3 to be processed during operation. The clamping is fixed so as to avoid deviation of the workpiece 3 to be processed during the processing and ensure a good processing effect. In the present invention, the laser cladding head 9 is driven by the articulated rotatable mechanical arm 9 to simultaneously strengthen and repair the inner and outer surfaces of the workpiece 3 to be processed. This equipment further improves the efficiency of cladding and shortens the processing cycle; At the same time, the preheating time of the product is further shortened; and the two-way laser processing device adopts two-way repair to avoid deformation of the workpiece 3 to be processed due to stress concentration areas. The present invention also has one or more delivery units for supplying materials to be clad to the laser cladding head 9 and has one or more laser beams for supplying laser rays to the laser cladding head 9 for laser cladding welding Source; The workpiece 3 to be processed in the present invention is a large bearing.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (8)

1. A new gantry double-arm laser cladding equipment, including a gantry support (1), a gantry beam (2), a workpiece to be processed (3), and a movable working platform (4), characterized in that the gantry A two-way symmetrical laser processing device is provided below the beam (2), and the laser processing device includes a mounting plate (5), an articulated rotatable mechanical arm (6), a fixed seat (7), a rotating shaft (8) and laser cladding head (9), the mounting plate (5) is fixedly installed on the lower surface of the gantry beam (2), and one end of the mounting plate (5) is movably connected with one end of the articulated and rotatable mechanical arm (6). The other end of the articulated rotating mechanical arm (6) is fixedly connected to the fixed seat (7), and the fixed seat (7) is movably connected with a rotating shaft (8), and the laser cladding head (9) is connected to the rotating shaft through a connecting rod. (8) Fixedly connected, the movable working platform (4) includes a base (10), a telescopic frame (11) and several rollers (12), and both sides of the base (10) are provided with chute ( 13), the inner wall of the chute (13) is provided with a set of chains (14), one end on one side of the base (10) is rotationally connected to one end of the first screw (15), and the first screw (15) The other end of the base (10) extends to the outside of the other end of the base (10) and is connected with a first gear (16), and the first screw (15) and the roller near the outermost side of the telescopic frame (11) pass through the The inside of the chute (13) is engaged with the chain (14) through the second gear (17), and the first gear (16) is also provided with a third gear (18) on one side in the vertical direction. Mesh connection, one end of the third gear (18) is electrically connected with the first motor (19), one end of the telescopic frame (11) is rotationally connected with one end of the roller (12), each The other end of the roller (12) extends to the inside of the other end of the retractable frame and is locked and connected with the chain (14). The workpiece (3) to be processed is set on the roller ( 12) on. 2. A new type of gantry double-arm laser cladding equipment according to claim 1, characterized in that, the interior of the gantry beam (2) is provided with two symmetrically arranged second screws (20), the One end of the second screw (20) is electrically connected to the second motor (21), the first slider (22) is provided above the mounting plate (5), and the second screw (20) is covered with a threaded sleeve ( 23), the first slider (22) is fixedly connected with the threaded sleeve (23). 3. A new type of gantry double-arm laser cladding equipment according to claim 1, characterized in that the laser processing device also includes an electric lifting column (24) and a connecting block (25), and the mounting plate ( 5) The electric lifting column (24) is fixedly connected to one end of the connection block (25), and the other end of the connection block (25) is movably connected to one end of the articulated rotatable mechanical arm (6). 4. A novel gantry double-arm laser cladding equipment according to claim 3, characterized in that the vertical height of the first screw (15) is the same as that of the drum (12). 5. A novel gantry double-arm laser cladding equipment according to claim 4, characterized in that the laser cladding head (9) is used to emit laser beams (26). 6. A new type of gantry double robotic arm laser cladding equipment according to claim 1, characterized in that, there are limit clamps (27) on both sides of the base (10), and the limit clamps (27) include Fixed clamping block (28), electric push rod (29), slide rail (30) and second slide block (31), the slide rail (30) is set above the two sides of the base (10), the One end of the electric push rod (29) is connected with a fixed clip (28), and the other end is fixedly connected with the second slider (31), and the second slider (31) is slidably connected with the slide rail (30). 7. A new type of gantry double-arm laser cladding equipment according to claim 6, characterized in that a rubber pad (32) is provided on the side of the fixed clamp (28) facing the workpiece (3) to be processed . 8. A new type of gantry double robot arm laser cladding equipment according to claim 7, characterized in that the fixed clamping block (28) is adapted to the shape of the workpiece (3) to be processed.

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