A self-positioning type disc workpiece rotary surfacing equipment

Abstract

The present application relates to the technical field of surfacing equipment, in particular to a self-positioning disc workpiece rotary surfacing equipment, which comprises a frame body, a three-jaw chuck and a welding arm are installed on the frame body, a suction assembly is installed on the three-jaw chuck, the suction assembly comprises a positive and negative pressure air pump which is fixedly connected to the frame body through a mounting seat, an annular fixed groove is communicated with the output end of the positive and negative pressure air pump, and an annular rotating groove is rotatably connected inside the annular fixed groove. The purpose of the present application is that air flow successively passes through the annular fixed groove and the annular rotating groove, and a first hose and a suction frame, and finally a plurality of suction cups apply negative pressure suction to the bottom edge of the sheet, through the double fixing mode of mechanical clamping of the three-jaw chuck and negative pressure suction of the suction cups, the position of the sheet can be firmly constrained, the stress effect generated by high temperature welding can be effectively resisted, the plate surface warping deformation in the sheet welding process can be avoided, the probability of plate surface warping deformation can be reduced, and the overall flatness of the sheet can meet the welding operation requirements.

Description

Technical Field

[0001] This invention relates to the field of surfacing equipment technology, specifically to a self-positioning rotary surfacing equipment for disc-shaped workpieces. Background Technology

[0002] The self-positioning disc-shaped workpiece rotary cladding equipment is a specialized industrial welding equipment equipped with an autonomous positioning and locking mechanism that can accurately clamp and fix various disc-shaped workpieces, drive the workpieces to rotate at a uniform speed, and work in conjunction with the welding torch to automatically complete the cladding process. Currently, during the surfacing welding of thin plates, the plates are easily affected by high-temperature stress, resulting in warping and deformation of the plate surface. It is difficult to maintain the flatness of the plate surface, which in turn affects the quality of the finished product and fails to meet the actual welding operation standards. Summary of the Invention

[0003] The purpose of this invention is to provide a self-positioning rotary welding device for disc-shaped workpieces. The airflow passes sequentially through an annular fixed groove and an annular rotating groove, as well as a first flexible hose and an adsorption frame. Finally, multiple sets of suction cups apply negative pressure to the bottom edge of the thin plate for adsorption. Through a dual fixing method of mechanical clamping by a three-jaw chuck and negative pressure adsorption by the suction cups, the position of the thin plate can be firmly constrained, effectively resisting the stress generated by the high temperature of welding, avoiding warping deformation of the plate surface during the welding process, reducing the probability of plate warping deformation, and ensuring that the overall flatness of the thin plate meets the requirements of the welding operation, thereby solving the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a self-positioning rotary welding device for disc-shaped workpieces, comprising a frame, on which a three-jaw chuck and a welding arm are mounted. An adsorption assembly is mounted on the three-jaw chuck. The adsorption assembly includes a positive and negative pressure air pump fixedly connected to the frame via a mounting base. The output end of the positive and negative pressure air pump is connected to an annular fixing groove. An annular rotating groove is rotatably connected inside the annular fixing groove. The annular rotating groove is fixedly mounted on the turntable of the three-jaw chuck. Three sets of adsorption frames are connected inside the annular rotating groove. Each set of adsorption frames is fixedly mounted on a gripper, and each set of adsorption frames is provided with multiple sets of suction cups. An auxiliary component is installed on the frame. The auxiliary component includes two sets of cylinders fixedly installed on the frame by a bracket. The output end of each set of cylinders is fixedly connected to an arc-shaped frame. The inside of each set of arc-shaped frames is connected to a collection box. The inside of each set of collection boxes is fixedly installed with a magnetic plate. The inside of each set of collection boxes is connected to a transmission pipe. One end of each set of transmission pipes is fixedly connected to the output end of a positive and negative pressure air pump.

[0005] Preferably, the annular fixing groove is connected to the annular rotating groove, the annular fixing groove is fixedly installed on the frame by a bracket, and each set of suction cups is connected to the inside of the suction frame.

[0006] Preferably, the annular rotating groove is internally connected to three sets of first hoses, one end of each set of first hoses is connected to each set of adsorption frames, and each set of first hoses is equipped with a first solenoid valve.

[0007] Preferably, each set of the arc-shaped frames has an opening at the bottom, and both sets of the collection boxes are fixedly installed on the frame by mounting bases.

[0008] Preferably, both sets of arc-shaped frames are connected to a second flexible hose, and one end of the second flexible hose in each set is connected to the inside of each set of collection boxes.

[0009] Preferably, both sets of transmission pipes are equipped with a filter screen inside, and both sets of transmission pipes are equipped with a second solenoid valve.

[0010] Preferably, the two sets of cylinders are arranged in an arc shape, and the two sets of collection boxes are arranged in an openable and closable box structure.

[0011] Compared with the prior art, the beneficial effects of the present invention are: 1. When welding thin plates, the operator first drives the three-jaw chuck to clamp the thin plate workpiece, then opens the first solenoid valve of the first hose, starts the positive and negative pressure air pumps, and the airflow passes through the annular fixing groove and the annular rotating groove, as well as the first hose and the suction frame in sequence. Finally, multiple sets of suction cups apply negative pressure to the bottom edge of the thin plate. Through the dual fixing method of mechanical clamping of the three-jaw chuck and negative pressure suction of the suction cups, the position of the thin plate can be firmly constrained, effectively resisting the stress generated by the high temperature of welding, avoiding the warping deformation of the plate surface during the welding process, reducing the probability of the plate surface warping deformation, and ensuring that the overall flatness of the thin plate meets the requirements of the welding operation.

[0012] 2. The operator starts two sets of cylinders to extend the two sets of arc frames, causing them to merge. Due to the arc design of the two sets of arc frames, there are holes inside them. The holes are located in the center of the thin plate. The operator starts the welding arm to move down along the holes and accurately position it to the center of the thin plate. This ensures that the starting point of the welding arm is aligned, preventing the initial welding position from shifting and ensuring that the subsequent welding trajectory is neat and orderly.

[0013] 3. Start the positive and negative pressure air pumps to draw metal slag particles generated during welding on the thin plate through two sets of collection boxes and two sets of second hoses, in conjunction with the movement of two sets of arc-shaped frames. When the metal slag particles are transported to the two sets of collection boxes through the two sets of second hoses, they are attracted by the magnetic plates inside each set of collection boxes and stored inside the collection boxes. This effectively prevents slag particles from adhering to and accumulating on the weld bead and plate surface of the thin plate, preventing slag particles from causing uneven weld bead formation, slag inclusions, and welding defects such as porosity, thus ensuring the quality of thin plate welding and the stability of equipment operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a self-positioning rotary welding equipment for disc-shaped workpieces according to the present invention; Figure 2 This is a second schematic diagram of the overall structure of a self-positioning rotary welding equipment for disc-shaped workpieces according to the present invention; Figure 3 This is a schematic diagram of the adsorption component and auxiliary component of a self-positioning rotary welding equipment for disc-shaped workpieces according to the present invention; Figure 4 This is a schematic diagram of the adsorption component structure of a self-positioning rotary welding equipment for disc-shaped workpieces according to the present invention; Figure 5 This is a schematic diagram of the adsorption frame structure of a self-positioning rotary welding equipment for disc-shaped workpieces according to the present invention; Figure 6 This is a schematic diagram of the auxiliary component structure of a self-positioning disc-type workpiece rotary welding equipment according to the present invention; Figure 7 This is a schematic diagram of the arc-shaped frame structure of a self-positioning rotary welding equipment for disc-shaped workpieces according to the present invention.

[0015] In the diagram: 1. Frame; 101. Three-jaw chuck; 102. Welding arm; 2. Adsorption assembly; 201. Positive and negative pressure air pump; 202. Annular fixing groove; 203. Annular rotating groove; 204. First hose; 205. Adsorption frame; 206. Suction cup; 3. Auxiliary assembly; 301. Cylinder; 302. Arc frame; 303. Second hose; 304. Collection box; 305. Magnetic plate; 306. Transfer pipe. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Please see Figures 1 to 7 This invention provides a self-positioning rotary welding device for disc-shaped workpieces, including a frame 1, on which a three-jaw chuck 101 and a welding arm 102 are mounted. An adsorption assembly 2 is mounted on the three-jaw chuck 101. The adsorption assembly 2 includes a positive and negative pressure air pump 201 fixedly connected to the frame 1 via a mounting base. The output end of the positive and negative pressure air pump 201 is connected to an annular fixing groove 202. An annular rotating groove 203 is rotatably connected inside the annular fixing groove 202. The annular rotating groove 203 is fixedly mounted on the turntable of the three-jaw chuck 101. Three sets of adsorption frames 205 are connected inside the annular rotating groove 203. Each set of adsorption frames 205 is fixedly mounted on a gripper. Each set of adsorption frames 205 is provided with multiple sets of suction cups 206. An auxiliary component 3 is installed on the frame 1. The auxiliary component 3 includes two sets of cylinders 301 fixedly installed on the frame 1 by a bracket. The output ends of the two sets of cylinders 301 are fixedly connected to arc-shaped frames 302. The inside of the two sets of arc-shaped frames 302 is connected to a collection box 304. The inside of the two sets of collection boxes 304 is fixedly installed with a magnetic plate 305. The inside of the two sets of collection boxes 304 is connected to a transmission pipe 306. One end of the two sets of transmission pipes 306 is fixedly connected to the output end of the positive and negative pressure air pump 201. When welding thin plates, the operator first drives the three-jaw chuck 101 to clamp the thin plate workpiece, then opens the first solenoid valve of the first hose 204, starts the positive and negative pressure air pump 201, and the airflow passes through the annular fixing groove 202 and the annular rotating groove 203, as well as the first hose 204 and the suction frame 205 in sequence. Finally, multiple sets of suction cups 206 apply negative pressure to the bottom edge of the thin plate. Through the dual fixing method of mechanical clamping of the three-jaw chuck 101 and negative pressure suction of the suction cups 206, the position of the thin plate can be firmly constrained, effectively resisting the stress generated by the high temperature of welding, avoiding the warping deformation of the plate surface during the welding process, reducing the probability of the plate surface warping deformation, and ensuring that the overall flatness of the thin plate meets the requirements of the welding operation. After the multiple suction cups 206 have finished adsorbing the bottom of the thin plate, the staff will close the first solenoid valve on the three sets of first hoses 204 and the positive and negative pressure air pumps 201 to maintain the adsorption of the multiple suction cups 206 on the thin plate. Then, the staff started the two sets of cylinders 301 to extend the two sets of arc frames 302 respectively, so that the two sets of arc frames 302 merged. Since the two sets of arc frames 302 are arc-shaped, there are holes inside the two sets of arc frames 302. The holes are located at the center of the thin plate. The staff started the welding arm 102 to move down along the holes and accurately position it to the center of the thin plate, so as to realize the welding starting point of the welding arm 102, prevent the initial welding position from being offset, and ensure that the subsequent welding trajectory is neat and orderly. When the welding arm 102 is started and begins the surfacing operation, the cylinder 301 moves with the welding arm 102, synchronously driving the arc frame 302 to gradually retract and avoid it. Simultaneously, the second solenoid valves on the two sets of transmission pipes 306 are opened, and the positive and negative pressure air pumps 201 are started. Through the two sets of collection boxes 304 and the two sets of second hoses 303, the metal slag particles generated during welding on the thin plate are sucked up by the movement of the two sets of arc frames 302. When the metal slag particles are transported to the two sets of collection boxes 304 through the two sets of second hoses 303, they are attracted by the magnetic plate 305 inside each set of collection boxes 304 and stored inside the collection box 304. This effectively avoids the adhesion and accumulation of slag particles on the weld bead and plate surface of the thin plate, preventing slag particles from causing uneven weld bead formation and slag inclusions, as well as welding defects such as porosity, thus ensuring the quality of thin plate surfacing and the stability of equipment operation. Because the two sets of transmission pipes 306 are equipped with filters, the filters will block metal slag particles from entering the two sets of transmission pipes 306, affecting the normal operation of the two sets of transmission pipes 306. After the thin plate welding is completed, the staff will open the doors of the two sets of collection boxes 304 to clean the metal slag particles inside the two sets of collection boxes 304. Additionally, since the annular rotating groove 203 is internally connected to the annular fixed groove 202, and the annular rotating groove 203 rotates inside the annular fixed groove 202, when the three-jaw chuck 101 rotates, the three-jaw chuck 101 drives the annular rotating groove 203 to rotate inside the annular fixed groove 202, so that when the three-jaw chuck 101 drives the thin plate to rotate for annular overlay welding, the negative pressure air passage structure can be kept completely connected and sealed.

[0018] In an optional embodiment, the annular fixing groove 202 is internally connected to the annular rotating groove 203, the annular fixing groove 202 is fixedly installed on the frame 1 by a bracket, and each set of suction cups 206 is internally connected to the suction frame 205.

[0019] It should be noted that, since the annular rotating groove 203 is internally connected to the annular fixed groove 202, and the annular rotating groove 203 rotates inside the annular fixed groove 202, when the three-jaw chuck 101 rotates, the three-jaw chuck 101 drives the annular rotating groove 203 to rotate inside the annular fixed groove 202, so that when the three-jaw chuck 101 drives the thin plate to rotate for annular overlay welding, the negative pressure air circuit structure can be kept completely connected and sealed.

[0020] In an optional embodiment, the annular rotating groove 203 is internally connected to three sets of first hoses 204, one end of each set of first hoses 204 is connected to each set of adsorption frames 205, and each set of first hoses 204 is provided with a first solenoid valve.

[0021] It should be noted that when the first solenoid valve of the first hose 204 is opened, the positive and negative pressure air pump 201 is started. The airflow passes through the annular fixed groove 202 and the annular rotating groove 203 in sequence, as well as the first hose 204 and the adsorption frame 205. Finally, multiple sets of suction cups 206 apply negative pressure adsorption to the bottom edge of the thin plate.

[0022] In an optional embodiment, each set of arc-shaped frames 302 has an opening at the bottom, and both sets of collection boxes 304 are fixedly installed on the frame 1 by mounting bases.

[0023] It should be noted that the bottom opening facilitates the real-time collection of welding spatter, and the fixed 304 stainless steel collection box ensures a stable dust collection structure, allowing for simultaneous slag removal during operation.

[0024] In an optional embodiment, both sets of arc-shaped frames 302 are connected to a second hose 303, and one end of each set of second hoses 303 is connected to the inside of each set of collection boxes 304.

[0025] It should be noted that the slag particles can be smoothly transported to the collection box 304 along the second flexible hose 303, and the internal magnetic plate 305 completes the adsorption and collection of the slag particles.

[0026] In an optional embodiment, both sets of transmission pipes 306 are equipped with filters, and both sets of transmission pipes 306 are equipped with second solenoid valves.

[0027] It should be noted that when the second solenoid valves on the two sets of transmission pipes 306 are opened, and the positive and negative pressure air pumps 201 are started, the metal slag particles generated by welding on the thin plate are sucked up through the two sets of collection boxes 304 and the two sets of second hoses 303, in conjunction with the movement of the two sets of arc-shaped frames 302. When the metal slag particles are transported to the two sets of collection boxes 304 through the two sets of second hoses 303, they are attracted by the magnetic plates 305 inside each set of collection boxes 304 and thus stored inside the collection boxes 304.

[0028] In an optional embodiment, the two sets of cylinders 301 are arranged in an arc shape, and the two sets of collection boxes 304 are arranged in an openable and closable box structure.

[0029] It should be noted that, due to the arc design of the two sets of arc frames 302, there are voids inside the two sets of arc frames 302. The voids are located at the center of the thin plate. When the worker starts the welding arm 102, it moves down along the voids and accurately positions itself to the center of the thin plate, thus aligning the starting point of the welding arm 102. This facilitates precise alignment and welding of the welding arm 102. The box can be opened and closed to facilitate the later centralized cleaning of accumulated slag.

[0030] Working principle: When welding thin plates, the operator first drives the three-jaw chuck 101 to clamp the thin plate workpiece, then opens the first solenoid valve of the first hose 204, starts the positive and negative pressure air pump 201, and the airflow passes through the annular fixing groove 202 and the annular rotating groove 203, as well as the first hose 204 and the suction frame 205 in sequence. Finally, multiple sets of suction cups 206 apply negative pressure to the bottom edge of the thin plate. Through the dual fixing method of mechanical clamping of the three-jaw chuck 101 and negative pressure suction of the suction cups 206, the position of the thin plate can be firmly constrained. After the multiple suction cups 206 have finished adsorbing the bottom of the thin plate, the staff will close the first solenoid valve on the three sets of first hoses 204 and the positive and negative pressure air pumps 201 to maintain the adsorption of the multiple suction cups 206 on the thin plate. Then, the staff started the two sets of cylinders 301 to drive the two sets of arc frames 302 to extend and merge the two sets of arc frames 302. Since the two sets of arc frames 302 are arc-shaped, a cavity appears inside the two sets of arc frames 302. The cavity is located at the center of the thin plate. The staff started the welding arm 102 to move down along the cavity and accurately position it to the center of the thin plate, so as to realize the alignment of the welding starting point of the welding arm 102. When the welding arm 102 is started and begins welding, the cylinder 301 moves with the welding arm 102 and synchronously drives the arc frame 302 to gradually retract and avoid it. Simultaneously, the second solenoid valves on the two sets of transmission pipes 306 are opened, and the positive and negative pressure air pumps 201 are started. Through the two sets of collection boxes 304 and the two sets of second hoses 303, the metal slag particles generated by welding on the thin plate are sucked up by the movement of the two sets of arc frames 302. When the metal slag particles are transported to the two sets of collection boxes 304 through the two sets of second hoses 303, they are attracted by the magnetic plate 305 inside each set of collection boxes 304 and thus stored inside the collection box 304. Because the two sets of transmission pipes 306 are equipped with filters, the filters will block metal slag particles from entering the two sets of transmission pipes 306, affecting the normal operation of the two sets of transmission pipes 306. After the thin plate welding is completed, the staff will open the doors of the two sets of collection boxes 304 to clean the metal slag particles inside the two sets of collection boxes 304.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-positioning rotary welding device for disc-shaped workpieces, comprising a frame (1), wherein a three-jaw chuck (101) and a welding arm (102) are mounted on the frame (1), characterized in that, The three-jaw chuck (101) is equipped with an adsorption assembly (2). The adsorption assembly (2) includes a positive and negative pressure air pump (201) fixedly connected to the frame (1) via a mounting base. The output end of the positive and negative pressure air pump (201) is connected to an annular fixing groove (202). An annular rotating groove (203) is rotatably connected inside the annular fixing groove (202). The annular rotating groove (203) is fixedly installed on the turntable of the three-jaw chuck (101). Three sets of adsorption frames (205) are connected inside the annular rotating groove (203). Each set of adsorption frames (205) is fixedly installed on the jaws. Each set of adsorption frames (205) is provided with multiple sets of suction cups (206). An auxiliary component (3) is installed on the frame (1). The auxiliary component (3) includes two sets of cylinders (301) fixedly installed on the frame (1) by a bracket. The output ends of the two sets of cylinders (301) are fixedly connected to arc-shaped frames (302). The interiors of the two sets of arc-shaped frames (302) are connected to collection boxes (304). The interiors of the two sets of collection boxes (304) are fixedly installed with magnetic plates (305). The interiors of the two sets of collection boxes (304) are connected to transmission pipes (306). One end of the two sets of transmission pipes (306) is fixedly connected to the output end of a positive and negative pressure air pump (201).

2. The self-positioning rotary welding equipment for disc-shaped workpieces according to claim 1, characterized in that, The annular fixing groove (202) is connected to the annular rotating groove (203). The annular fixing groove (202) is fixedly installed on the frame (1) by a bracket. Each set of suction cups (206) is connected to the inside of the suction frame (205).

3. The self-positioning rotary welding equipment for disc-shaped workpieces according to claim 1, characterized in that, The annular rotating groove (203) is internally connected to three sets of first hoses (204). One end of each set of first hoses (204) is connected to each set of adsorption frames (205), and each set of first hoses (204) is equipped with a first solenoid valve.

4. The self-positioning rotary welding equipment for disc-shaped workpieces according to claim 1, characterized in that, Each set of the arc-shaped frame (302) has an opening at the bottom, and both sets of the collection boxes (304) are fixedly installed on the frame (1) by mounting bases.

5. The self-positioning rotary welding equipment for disc-shaped workpieces according to claim 1, characterized in that, Both sets of arc-shaped frames (302) are connected to a second hose (303), and one end of the second hose (303) in each set is connected to the inside of each set of collection boxes (304).

6. The self-positioning rotary welding equipment for disc-shaped workpieces according to claim 1, characterized in that, Both sets of transmission pipes (306) are equipped with filters inside, and both sets of transmission pipes (306) are equipped with second solenoid valves.

7. The self-positioning rotary welding equipment for disc-shaped workpieces according to claim 1, characterized in that, The two sets of cylinders (301) are arranged in an arc shape, and the two sets of collection boxes (304) are arranged in an openable and closable box structure.

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