Multi-station automatic welding device and process for low-cobalt hard alloy

Abstract

The invention relates to the technical field of multi-station welding, in particular to a multi-station automatic welding device and process for low-cobalt hard alloy, which comprises a fixed base, a plurality of welding auxiliary rings are fixedly connected to the upper end of the fixed base, and the welding auxiliary rings are used for welding alloy in different directions, at different angles and at different point positions. A movable welding seat is arranged in the middle of the welding auxiliary ring and used for moving alloy and adjusting the alloy to different angles and different directions, two fixing frames are fixedly connected to the upper end of the movable welding seat and are of T-shaped structures, clamping plates are arranged at the side ends of the fixing frames, and rotation control mechanisms are hinged to the upper ends of the fixing frames. And the rotating control mechanism is used for driving the movable welding base to rotate and changing the angle of the alloy, and when the alloy is welded, the alloy can be driven to move and rotate, so that the alloy is welded in different directions, at different angles and at different point positions, and the welding accuracy and the welding quality are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of multi-station welding, and particularly to a multi-station automatic welding device and process for low-cobalt cemented carbide. Background Art

[0002] When joining two pieces of metal or two pieces of cemented carbide tightly together, brazing technology is required. Brazing uses a metal material with a melting point lower than that of the base material as the filler metal. During welding, the filler metal is heated and melted, and then relies on the wetting action and capillary action of the liquid filler metal to fill the joint gap and diffuse with the base material, thereby achieving the connection of the workpiece. During welding, there will be some debris splashing, and accompanied by dazzling arc light, which will cause great harm to the human body and eyes. For this reason, many factories use machine welding. However, the shapes of some dissimilar alloys are relatively peculiar, and the moving angle of the existing welding machines is limited, so they cannot weld dissimilar alloys well; different alloys require welding machines with different powers for welding, otherwise it is easy to cause the base material to melt during the melting process of the filler metal, affecting the shape of the metal. Summary of the Invention

[0003] The purpose of the present invention is to provide a multi-station automatic welding device and process for low-cobalt cemented carbide to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A multi-station automatic welding device for low-cobalt cemented carbide, including a fixed base. A plurality of welding auxiliary rings are fixedly connected to the upper end of the fixed base. The welding auxiliary rings are used for welding different positions, different angles and different points of the alloy. A movable welding seat is arranged in the middle of the welding auxiliary rings. The movable welding seat is used for moving the alloy and adjusting the alloy to different angles and different positions. Two fixed frames are fixedly connected to the upper end of the movable welding seat. The fixed frames are of T-shaped structure. Clamping plates are arranged on the side ends of the fixed frames. Ball bearings are arranged on both sides of the lower end of the movable welding seat. The ball bearings abut against the inner wall of the welding auxiliary rings. A rotation control mechanism is hinged to the upper end of the fixed frame. The rotation control mechanism is used for driving the movable welding seat to rotate and changing the angle of the alloy. The rotation control mechanism consists of a rotation plate, a driving wheel, an elastic sheet and a magnetic attraction block. Positioning grooves are arranged on the inner wall of the welding auxiliary rings. A plurality of positioning magnetic pole blocks are fixedly connected to the inner wall of the positioning grooves. The positioning magnetic pole blocks are used for magnetically attracting and positioning the movable welding seat. Installation cavities are arranged on both sides of the lower end of the movable welding seat. A magnetic pole positioning mechanism is arranged in the installation cavities. The magnetic pole positioning mechanism consists of a traction plate, a pressing plate, a pressure sensor and a pressing cam.

[0005] Preferably, the lower parts of both ends of the movable welding seat are arc-shaped surfaces. The side view of the movable welding seat is a ship-shaped structure. A communication port is provided in the middle of the movable welding seat, and the communication port penetrates the movable welding seat. The two fixing frames are located on both sides of the communication port, and the distance between the two welding auxiliary rings is less than the length of the movable welding seat.

[0006] Preferably, the positioning groove is an annular structure, the positioning magnetic pole block is a magnet block, and the magnetic forces of different positioning magnetic pole blocks are different.

[0007] Preferably, the extrusion plate is fixedly connected to the upper end of the traction plate. The extrusion plate and the traction plate form a T-shaped structure. The extrusion plate is slidably connected to the inner wall of the installation cavity. The opening of the positioning groove is an arc-shaped structure. The traction plate is an iron plate. When the traction plate faces the positioning groove, the traction plate is inserted into the positioning groove.

[0008] Preferably, a plurality of welding ports are provided on the outer side wall of the welding auxiliary ring. The welding ports penetrate the welding auxiliary ring. An installation frame is fixedly connected to the outer side wall of the welding auxiliary ring. A welding machine is provided in the middle of the installation frame, and the welding machine is connected to the installation frame through a cylinder.

[0009] Preferably, the installation cavity is a convex-shaped structure. The pressure sensor is fixedly connected to the inner wall of the installation cavity. Both the extrusion cam and the pressure sensor are located at the lower end of the extrusion plate. A motor is provided in the installation cavity, and the extrusion cam is connected to the power output end of the motor.

[0010] Preferably, the rotating plate is a Z-shaped structure. The upper end of the fixing frame is an inclined surface. The corner of the rotating plate is hinged to the inclined surface of the fixing frame. An electromagnet is fixedly connected to the side end of the fixing frame.

[0011] Preferably, a triangular structure is formed between the rotating plate and the vertical side wall of the fixing frame. The elastic sheet is an arc-shaped structure. Both ends of the elastic sheet are fixedly connected to the rotating plate and the fixing frame respectively.

[0012] Preferably, a motor is provided at the side end of the rotating plate. The driving wheel is fixedly connected to the power output end of the motor, and both ends of the driving wheel penetrate the rotating plate.

[0013] A multi-station automatic welding device and process for low-cobalt cemented carbide include the following steps: Step 1: Place the alloy to be welded on the two fixing frames and clamp and fix it with the clamping plate; Step 2: The rotation control mechanism can control the rotation of the movable welding seat, so as to align different angles and different positions of the alloy with the welding machine, and perform welding treatment on different angles and different positions of the alloy; Step 3: Move the movable welding seat among multiple welding auxiliary rings, align the alloy with different welding auxiliary rings, thereby changing the orientation of the alloy, and enabling welders with different powers to weld the alloy; Step 4: When the movable welding seat moves among multiple welding auxiliary rings, the traction plate positions and angles the movable welding seat, thereby controlling the movement of the movable welding seat, changing the angle and position of the clamped alloy, and aligning the alloy with welders at different positions.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: First, through a pipeline-type welding method, the alloy is successively passed through welding auxiliary rings at different positions, thereby aligning the alloy to be welded with welders of different powers, avoiding the melting of the alloy master batch during welding, and preventing the shape of the alloy from being affected during welding; Second, during the welding process, the movable welding seat can be driven to rotate around the welding auxiliary ring, thereby aligning different angles and points of the alloy for welding, and thus welding the alloy, ensuring that dissimilar alloys can also be easily welded, with stronger adaptability. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the internal connection of the device.

[0016] Figure 2 It is a three-dimensional connection schematic diagram of the welding auxiliary ring and the movable welding seat.

[0017] Figure 3 It is an enlarged schematic diagram at A.

[0018] In the figure: 1 fixed base, 2 welding auxiliary ring, 3 positioning groove, 4 positioning magnetic pole block, 5 mounting bracket, 6 welding machine, 7 movable welding seat, 8 fixed bracket, 9 rotation control mechanism, 91 rotation plate, 92 drive wheel, 93 elastic sheet, 94 magnetic attraction block, 10 clamping plate, 11 electromagnet, 12 communication port, 13 welding port, 14 ball, 15 installation cavity, 16 magnetic pole positioning mechanism, 161 traction plate, 162 extrusion plate, 163 pressure sensor, 164 extrusion cam. Detailed Embodiments

[0019] In order to deepen the understanding and recognition of the present invention below, the technical solutions in the embodiments of the present invention will be clearly and completely described and introduced in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments, and no any formal restrictions are imposed on this embodiment. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0020] Please refer to Figures 1-3, the present invention provides a technical solution: a multi-station automatic welding device for low-cobalt cemented carbide, including a fixed base 1. A plurality of welding auxiliary rings 2 are fixedly connected to the upper end of the fixed base 1. The welding auxiliary rings 2 are used for welding different positions, different angles and different points of the alloy. A movable welding seat 7 is arranged in the middle of the welding auxiliary rings 2. The movable welding seat 7 is used for moving the alloy and adjusting the alloy to different angles and different positions. Two fixing frames 8 are fixedly connected to the upper end of the movable welding seat 7. The fixing frames 8 are of T-shaped structure. Clamping plates 10 are arranged on the side ends of the fixing frames 8. Ball bearings 14 are arranged on both sides of the lower end of the movable welding seat 7. The ball bearings 14 abut against the inner wall of the welding auxiliary rings 2. A rotation control mechanism 9 is hinged to the upper end of the fixing frame 8. The rotation control mechanism 9 is used for driving the movable welding seat 7 to rotate and changing the angle of the alloy. The rotation control mechanism 9 is composed of a rotation plate 91, a driving wheel 92, an elastic sheet 93 and a magnetic attraction block 94. Positioning grooves 3 are arranged on the inner wall of the welding auxiliary rings 2. A plurality of positioning magnetic pole blocks 4 are fixedly connected to the inner wall of the positioning grooves 3. The positioning magnetic pole blocks 4 are used for magnetically attracting and positioning the movable welding seat 7. Installation cavities 15 are arranged on both sides of the lower end of the movable welding seat 7. A magnetic pole positioning mechanism 15 is arranged in the installation cavities 15. The magnetic pole positioning mechanism 15 is composed of a traction plate 161, a pressing plate 162, a pressure sensor 163 and a pressing cam 164.

[0021] The lower parts at both ends of the movable welding seat 7 are arc-shaped surfaces. The side view of the movable welding seat 7 is of a ship-shaped structure. A communication port 12 is arranged in the middle of the movable welding seat 7. The communication port 12 penetrates through the movable welding seat 7. The two fixing frames 8 are located on both sides of the communication port 12. The distance between the two welding auxiliary rings 2 is less than the length of the movable welding seat 7. A plurality of welding ports 13 are arranged on the outer side wall of the welding auxiliary rings 2. The welding ports 13 penetrate through the welding auxiliary rings 2. An installation frame 5 is fixedly connected to the outer side wall of the welding auxiliary rings 2. A welding machine 6 is arranged in the middle of the installation frame 5. The welding machine 6 is connected to the installation frame 5 through a cylinder, so that the movable welding seat 7 can move between different welding auxiliary rings 2, thereby moving the alloy to different welding auxiliary rings 2. The welding machine 6 can pass through the welding ports 13 to weld the alloy. Welding machines with different powers are arranged on different welding auxiliary rings, so as to adapt to the welding of alloys with different materials and make the device more adaptable.

[0022] The positioning groove 3 is of an annular structure, the positioning magnetic pole block 4 is a magnet block, and the magnetic forces of different positioning magnetic pole blocks 4 are different. The extrusion plate 162 is fixedly connected to the upper end of the traction plate 161. The extrusion plate 162 and the traction plate 161 form a T-shaped structure. The extrusion plate 162 is slidably connected to the inner wall of the installation cavity 15. The opening of the positioning groove 3 is of an arc structure. The traction plate 161 is an iron plate. When the traction plate 161 faces the positioning groove 3, the traction plate 161 is inserted into the positioning groove 3. The installation cavity 15 is of a convex-shaped structure. The pressure sensor 163 is fixedly connected to the inner wall of the installation cavity 15. Both the extrusion cam 164 and the pressure sensor 163 are located at the lower end of the extrusion plate 162. A motor is provided in the installation cavity 15. The extrusion cam 164 is connected to the power output end of the motor. When the moving welding seat 7 moves in the middle of the welding auxiliary ring 2, the traction plate 161 moves to the positioning groove 3. The traction plate 161 is attracted by the positioning magnetic pole block 4, so that the traction plate 161 is inserted into the positioning groove 3, thereby positioning the moving welding seat 7. At this time, the traction plate 161 drives the extrusion plate 162 to squeeze the pressure sensor 163, and the angle of the moving welding seat 7 is judged according to the extrusion force, so as to accurately align the position where the alloy needs to be welded with the welding machine 6. When it is necessary to change the position of the moving welding seat 7, the extrusion cam 164 rotates to lift the extrusion cam 164 against the extrusion plate 162, so that the traction plate moves out of the positioning groove 3, so that the moving welding seat 7 can be released from the limitation.

[0023] The rotating plate 91 is of a Z-shaped structure. The upper end of the fixing frame 8 is an inclined surface. The corner of the rotating plate 91 is hinged to the inclined surface of the fixing frame 8. An electromagnet 11 is fixedly connected to the side end of the fixing frame 8. The rotating plate 91 and the vertical side wall of the fixing frame 8 form a triangular structure. The elastic piece 93 is of an arc structure. The two ends of the elastic piece 93 are respectively fixedly connected to the rotating plate 91 and the fixing frame 8. A motor is provided at the side end of the rotating plate 91. The driving wheel 92 is fixedly connected to the power output end of the motor. The two ends of the driving wheel 92 penetrate through the rotating plate 91. When the moving welding seat 7 is positioned and limited, the electromagnet 11 is powered off, and the electromagnet 11 no longer adsorbs and fixes the magnetic attraction block 94. Under the action of the elastic piece 93, the rotating plate 91 rotates, so as to abut the driving wheel 92 against the inner wall of the welding auxiliary ring 2. When the angle of the moving welding seat 7 is determined, the driving wheel 92 rotates to change the angle of the moving welding seat 7, so as to align the position where the alloy needs to be welded with the welding machine 6.

[0024] A multi-station automatic welding device and process for low-cobalt cemented carbide, comprising the following steps: Step 1: Place the alloy to be welded on two fixing frames 8 and clamp and fix it with the clamping plate 10; Step 2: The rotation control mechanism 9 can control the rotation of the moving welding seat 7, so as to align different angles and different points of the alloy with the welding machine, and perform welding treatment on different angles and different points of the alloy; Step 3: Move the movable welding base 7 among multiple welding auxiliary rings 2, align the alloy with different welding auxiliary rings 2, so as to change the orientation of the alloy, and enable welders with different powers to weld the alloy; Step 4: When the movable welding base 7 moves among multiple welding auxiliary rings 2, the traction plate 161 positions the position and angle of the movable welding base 7, thereby controlling the movement of the movable welding base 7, changing the angle and position of the clamped alloy, and aligning the alloy with welders at different positions.

[0025] Although the embodiments of the present invention have been shown and described, it should be emphasized that the above description is only an introduction and description of the usage modes of the embodiments of the present invention, and does not impose any formal restrictions on the present invention. For those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirits of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-station automatic welding device for low-cobalt cemented carbide, comprising a fixed base (1), characterized in that: A plurality of welding auxiliary rings (2) are fixedly connected to the upper end of the fixed base (1), and the welding auxiliary rings (2) are used to weld the alloy at different positions, angles and points; A movable welding seat (7) is provided in the middle of the welding auxiliary ring (2), and the movable welding seat (7) is used to move the alloy and adjust the alloy to different angles and different orientations. Two fixing frames (8) are fixedly connected to the upper end of the movable welding seat (7), and the fixing frames (8) are of a T-shaped structure. A clamping plate (10) is provided at the side end of the fixing frame (8). Ball bearings (14) are provided on both sides of the lower end of the movable welding seat (7), and the ball bearings (14) are against the inner wall of the welding auxiliary ring (2); A rotation control mechanism (9) is hingedly connected to the upper end of the fixing frame (8), and the rotation control mechanism (9) is used to drive the movable welding seat (7) to rotate and change the angle of the alloy, and the rotation control mechanism (9) is composed of a rotating plate (91), a driving wheel (92), an elastic sheet (93) and a magnetic attraction block (94); A positioning groove (3) is provided on the inner wall of the welding auxiliary ring (2), and a plurality of positioning magnetic pole blocks (4) are fixedly connected to the inner wall of the positioning groove (3), and the positioning magnetic pole blocks (4) are used to magnetically attract and position the movable welding seat (7); Both sides of the lower end of the movable welding seat (7) are provided with mounting cavities (15), and a magnetic pole positioning mechanism (15) is provided in the mounting cavity (15). The magnetic pole positioning mechanism (15) is composed of a traction plate (161), an extrusion plate (162), a pressure sensor (163) and an extrusion cam (164).

2. A multi-station automatic welding device for low-cobalt cemented carbide according to claim 1, characterized in that: The lower parts of both ends of the movable welding seat (7) are arc-shaped surfaces. The side view of the movable welding seat (7) is a boat-shaped structure. A connecting port (12) is provided in the middle of the movable welding seat (7). The connecting port (12) passes through the movable welding seat (7). The two fixing frames (8) are located on both sides of the connecting port (12). The distance between the two welding auxiliary rings (2) is less than the length of the movable welding seat (7).

3. The multi-station automatic welding device for low-cobalt cemented carbide according to claim 1, characterized in that: The positioning groove (3) is an annular structure, the positioning magnetic pole block (4) is a magnet block, and different positioning magnetic pole blocks (4) have different magnetic forces.

4. The multi-station automatic welding device for low-cobalt cemented carbide according to claim 1, characterized in that: The extrusion plate (162) is fixedly connected to the upper end of the traction plate (161); the extrusion plate (162) and the traction plate (161) form a T-shaped structure; the extrusion plate (162) and the inner wall of the installation cavity (15) are slidably connected; the opening of the positioning groove (3) is an arc-shaped structure; the traction plate (161) is an iron plate; when the traction plate (161) faces the positioning groove (3), the traction plate (161) is inserted into the positioning groove (3).

5. The multi-station automatic welding device for low-cobalt cemented carbide according to claim 1, characterized in that: A plurality of welding openings (13) are provided on the outer wall of the welding auxiliary ring (2), and the welding openings (13) penetrate the welding auxiliary ring (2). A mounting frame (5) is fixedly connected to the outer wall of the welding auxiliary ring (2), and a welding machine (6) is provided in the middle of the mounting frame (5). The welding machine (6) and the mounting frame (5) are connected via a cylinder.

6. The multi-station automatic welding device for low-cobalt cemented carbide according to claim 1, characterized in that: The installation cavity (15) is a convex-shaped structure; the pressure sensor (163) is fixedly connected to the inner wall of the installation cavity (15); the extrusion cam (164) and the pressure sensor (163) are both located at the lower end of the extrusion plate (162); a motor is provided in the installation cavity (15); and the extrusion cam (164) is connected to a power output end of the motor.

7. The multi-station automatic welding device for low-cobalt cemented carbide according to claim 1, characterized in that: The rotating plate (91) is a Z-shaped structure, the upper end of the fixing frame (8) is an inclined surface, the corner of the rotating plate (91) is hinged to the inclined surface of the fixing frame (8), and the side end of the fixing frame (8) is fixedly connected to an electromagnet (11).

8. The multi-station automatic welding device for low-cobalt cemented carbide according to claim 1, characterized in that: The rotating plate (91) and the vertical side wall of the fixing frame (8) form a triangular structure, the elastic sheet (93) is an arc-shaped structure, and the two ends of the elastic sheet (93) are respectively fixedly connected to the rotating plate (91) and the fixing frame (8).

9. The multi-station automatic welding device for low-cobalt cemented carbide according to claim 1, characterized in that: A motor is provided at a side end of the rotating plate (91), the driving wheel (92) is fixedly connected to a power output end of the motor, and both ends of the driving wheel (92) penetrate the rotating plate (91).

10. A multi-station automatic welding device and process for low-cobalt cemented carbide according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: placing the alloy to be welded on two fixing frames (8) and clamping and fixing them with clamping plates (10); Step 2: The rotation control mechanism (9) can control the rotation of the movable welding seat (7), so as to align different angles and different points of the alloy with the welding machine, and perform welding processing on different angles and different points of the alloy; Step 3: moving the movable welding seat (7) among the plurality of welding auxiliary rings (2) to align the alloy with different welding auxiliary rings (2), thereby changing the orientation of the alloy and enabling welding machines of different powers to weld the alloy; Step 4: When the movable welding seat (7) moves in the plurality of welding auxiliary rings (2), the traction plate (161) positions the position and angle of the movable welding seat (7), thereby controlling the movement of the movable welding seat (7), changing the angle and position of the clamped alloy, and aligning the alloy with the welding machine at different positions.

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