Automatic nut assembling and welding system

Abstract

The invention provides an automatic nut assembling and welding system and relates to the technical field of welding equipment. The automatic nut assembling and welding system comprises a nut conveying device and a welding gun; the nut conveying device comprises a shell body, a nut loading clip, a nut clamping jaw and an electric push rod, the nut loading clip is used for loading a plurality of to-be-welded nuts, the nut loading clip is detachably connected to the shell body and used for conveying the to-be-welded nuts into the shell body one by one, and the nut clamping jaw is arranged in the shell body; the electric push rod is arranged in the shell body, the telescopic end of the electric push rod is connected with the nut clamping jaw, and the electric push rod is used for driving the nut clamping jaw to stretch out of the shell body and move towards the chemical container so that the to-be-welded nut clamped on the nut clamping jaw can abut against the chemical container. Compared with the prior art, the automatic nut assembling and welding system can improve the welding and assembling efficiency and precision of nuts.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, and in particular to an automatic nut assembly welding system. Background Art

[0002] Chemical containers are equipment used to store, transport or react chemical substances, and are commonly used in chemical, pharmaceutical, food and other industrial fields.

[0003] In the related technology, the outer wall of a chemical container often needs to be welded with rows of nuts according to the requirements of the drawings to fix the insulation material. Usually, a horizontal and vertical grid is manually drawn on the outer wall. One worker holds the nut and places it at the corresponding position of the grid, while another worker holds a welding gun to weld it. However, there are problems such as low assembly efficiency, high requirements on personnel for assembly accuracy, single welding method and unstable welding quality. Summary of the invention

[0004] The present invention aims to solve at least one of the above technical problems.

[0005] The present invention provides a nut automatic assembly welding system, comprising: a nut conveying device and a welding gun; the nut conveying device comprises a shell body, a nut loading clip, a nut clamping claw and an electric push rod, the nut loading clip is used to load a plurality of nuts to be welded, the nut loading clip is detachably connected to the shell body, and the nut loading clip is used to convey the nuts to be welded one by one into the shell body, the nut clamping claw is arranged in the shell body, and is used to clamp the nuts to be welded, the electric push rod is arranged in the shell body, and the telescopic end of the electric push rod is connected to the nut clamping claw, the electric push rod is used to drive the nut clamping claw to extend out of the shell body and move toward a direction close to a chemical container, so that the nut to be welded clamped on the nut clamping claw is abutted against the chemical container, and the welding gun is used to weld the nut to be welded to the chemical container.

[0006] The nut automatic assembly welding system provided by the present invention has, compared with the prior art, but is not limited to the following beneficial effects:

[0007] The nut automatic assembly welding system described in the present invention can be used by first loading a plurality of nuts to be welded into a nut loading clip of a nut conveying device, and then installing the nut loading clip on a shell body. The nut conveying device can be held by a worker or installed on a manipulator of an industrial robot to be moved to a corresponding welding position of a chemical container. After the nut conveying device is moved to the corresponding position, the nut loading clip first delivers a nut to be welded into the shell body, and then clamps the nut to be welded by a nut clamping claw, and then moves the nut clamping claw toward the chemical container by an electric push rod until the nut to be welded on the nut clamping claw is abutted against the corresponding welding position of the chemical container, and then the nut to be welded can be welded to the chemical container by a welding gun, thereby completing the welding of one nut, and the above process can be repeated at the next welding position of the chemical container until all the nut welding work is completed. Compared with the prior art, the nut automatic assembly welding system of the present invention can complete the batch feeding of nuts through the nut loading clip, without the need for workers to manually pick up and place the nuts multiple times. The nut clamping claws can automatically grab the nuts to be welded, and the nut clamping claws can be pushed to the corresponding welding position of the chemical container through the electric push rod. The system has a high degree of automation, improves the nut welding assembly accuracy and assembly efficiency, and the electric push rod can exert a larger clamping force on the nuts, which helps to improve the quality of the weld.

[0008] Optionally, the shell body is a cylindrical structure with an internal cavity, and a window is opened at one end of the cylindrical structure. The nut clamp and the electric push rod are both arranged in the cylindrical structure, and the electric push rod is used to drive the nut clamp to extend from the window to the outside of the cylindrical structure.

[0009] Optionally, the nut loading clip includes a clip shell and an electric screw, one end of the clip shell has an opening, and the opening is connected to the interior of the barrel structure, the electric screw is rotatably connected to the clip shell, the electric screw is used to load a plurality of nuts to be welded, and the electric screw is used to transport the nuts to be welded one by one from the opening to the barrel structure.

[0010] Optionally, the nut conveying device also includes a connecting arm and an electromagnet, the two connecting arms are respectively connected to the two outer side walls of the shell body, the two electromagnets are respectively connected to one end of the two connecting arms away from the shell body, and the two electromagnets are respectively used to energize to adsorb on the chemical container.

[0011] Optionally, the nut automatic assembly and welding system also includes a laser projection calibration device, which includes a bracket, a laser emitter and a perforated template, the laser emitter and the perforated template are arranged on the bracket at intervals, and a plurality of light-transmitting holes are evenly distributed on the perforated template, and the laser emitter is used to emit laser and project the laser onto the chemical container after passing through the light-transmitting holes.

[0012] Optionally, the bracket is a portal frame, which includes two columns arranged at intervals and a middle beam connected between the two columns, the laser emitter and the perforated template are arranged at intervals on the middle beam, and the lengths of the two columns are adjustable.

[0013] Optionally, the nut automatic assembly and welding system further comprises a roller, on which the chemical container is mounted, and which is used to drive the chemical container to rotate around its own axis.

[0014] Optionally, the nut automatic assembly welding system further comprises a welding wire conveying mechanism, which is disposed on the shell body and is used to convey the welding wire between the nut to be welded and the chemical container.

[0015] Optionally, the nut conveying device further includes a vibration mechanism, which is disposed between the telescopic end of the electric push rod and the nut clamping jaw and is used to vibrate the nut clamping jaw.

[0016] Optionally, a portion of the nut clamp that is used to contact the nut to be welded is provided with a magnet. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a nut conveying device according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic structural diagram of a chemical container installed on a roller according to an embodiment of the present invention.

[0019] Description of reference numerals:

[0020] 1. Nut conveying device; 11. Shell body; 12. Nut loading clip; 13. Nut clamping claw; 14. Connecting arm; 15. Electromagnet; 16. Wire conveying mechanism; 2. Laser projection calibration device; 21. Bracket; 211. Column; 212. Middle beam; 22. Laser transmitter; 23. Template with holes; 3. Roller; 100. Nut to be welded; 200. Chemical container. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0022] In the description of the present invention, the directions or positional relationships indicated by “up”, “down”, “left”, “right”, “top”, “bottom”, “front”, “back”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention. They do not indicate or imply that the device referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the scope of protection of the present invention.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the description of this specification, the description with reference to the terms "embodiment", "one embodiment" and "one implementation" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or implementation are included in at least one embodiment or implementation of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or implementation. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or implementations in a suitable manner.

[0025] Moreover, the Z-axis in the accompanying drawings represents the vertical direction, that is, the up and down position, and the positive direction of the Z-axis (that is, the direction of the arrow of the Z-axis) represents the top, and the negative direction of the Z-axis (that is, the direction opposite to the positive direction of the Z-axis) represents the bottom; the X-axis in the accompanying drawings represents the horizontal direction, that is, the left and right position, and the positive direction of the X-axis (that is, the direction of the arrow of the X-axis) represents the right, and the negative direction of the X-axis (that is, the direction opposite to the positive direction of the X-axis) represents the left; the Y-axis in the accompanying drawings represents the longitudinal direction, that is, the front and back position, and the positive direction of the Y-axis (that is, the direction of the arrow of the Y-axis) represents the front, and the negative direction of the Y-axis (that is, the direction opposite to the positive direction of the Y-axis) represents the back.

[0026] It should also be noted that the aforementioned Z-axis, X-axis and Y-axis are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0027] like Figures 1 to 2As shown, the nut automatic assembly welding system of the embodiment of the present invention includes: a nut conveying device 1 and a welding gun; the nut conveying device 1 includes a shell body 11, a nut loading clip 12, a nut clamping claw 13 and an electric push rod, the nut loading clip 12 is used to load a plurality of nuts 100 to be welded, the nut loading clip 12 is detachably connected to the shell body 11, and the nut loading clip 12 is used to convey the nuts 100 to be welded one by one into the shell body 11, and the nut clamping claw 13 is arranged on the shell body 11, used for clamping the nut 100 to be welded, the electric push rod is arranged in the shell body 11, and the telescopic end of the electric push rod is connected to the nut clamp 13, the electric push rod is used to drive the nut clamp 13 to extend out of the shell body 11 and move toward the direction close to the chemical container 200, so as to abut the nut 100 to be welded clamped on the nut clamp 13 against the chemical container 200, and the welding gun is used to weld the nut 100 to be welded to the chemical container 200.

[0028] In this embodiment, combined with the attached Figure 1 and attached Figure 2 As shown, when in use, a plurality of nuts 100 to be welded can be first loaded into the nut loading clip 12 of the nut conveying device 1, and then the nut loading clip 12 can be installed on the shell body 11. The nut conveying device 1 can be held by a worker or installed on the manipulator of an industrial robot to move it to the corresponding welding position of the chemical container 200. After the nut conveying device 1 is moved to the corresponding position, the nut loading clip 12 first conveys a nut 100 to be welded into the shell body 11, and then clamps the nut 100 to be welded through the nut clamping jaw 13, and then moves the nut clamping jaw 13 toward the chemical container 200 through the electric push rod until the nut 100 to be welded on the nut clamping jaw 13 is abutted against the corresponding welding position of the chemical container 200, and then the nut 100 to be welded can be welded to the chemical container 200 through the welding gun, thereby completing the welding work of one nut, and the above process can be repeated at the next welding position of the chemical container 200 until all the nut welding work is completed. Compared with the prior art, the automatic nut assembly and welding system of the present invention can complete the batch feeding of nuts through the nut loading clip 12, without the need for workers to manually pick up and place the nuts multiple times. The nut clamp 13 can automatically grasp the nut 100 to be welded, and the nut clamp 13 can be pushed to the corresponding welding position of the chemical container 200 through the electric push rod. It has a high degree of automation, improves the nut welding assembly accuracy and assembly efficiency, and the electric push rod can apply a larger clamping force to the nut, which helps to improve the quality of the weld.

[0029] Optionally, the shell body 11 is a cylindrical structure with an internal cavity, and a window is opened at one end of the cylindrical structure. The nut clamp 13 and the electric push rod are both arranged in the cylindrical structure, and the electric push rod is used to drive the nut clamp 13 to extend from the window to the outside of the cylindrical structure.

[0030] In this embodiment, combined with the attached Figure 1 As shown, the housing body 11 is a cylindrical structure with an internal cavity, and the length direction of the cylindrical structure (attached Figure 1 A window is provided at one end of the cylinder structure (in the Y-axis direction), and the electric push rod is installed inside the cylinder structure. The electric push rod can drive the nut clamp 13 to extend from the window to the outside of the cylinder structure, so as to abut the nut 100 to be welded on the nut clamp 13 against the corresponding welding position of the chemical container 200. The shell body 11 can protect the nut clamp 13 and the electric push rod.

[0031] Optionally, the nut loading clip 12 includes a clip shell and an electric screw, one end of the clip shell has an opening, and the opening is connected to the interior of the barrel structure, the electric screw is rotatably connected to the clip shell, the electric screw is used to load a plurality of nuts 100 to be welded, and the electric screw is used to transport the nuts 100 to be welded one by one from the opening to the barrel structure.

[0032] In this embodiment, combined with the attached Figure 1 As shown, the magazine housing of the nut mounted magazine 12 can be a rectangular housing structure as a whole, wherein the upper end (attached Figure 1 The magazine shell has an opening (in the positive direction of the middle Z axis), the upper end of the magazine shell is connected to the side wall of the barrel structure, and the opening is connected to the interior of the barrel structure. The magazine shell and the barrel structure can be fixed by a snap-fit ​​method, which is convenient for disassembly and assembly. The magazine shell is rotatably connected to the inside of the magazine shell, and the electric screw is used to threadably connect multiple nuts 100 to be welded. The nuts 100 to be welded on it can be transported one by one to the inside of the barrel structure by rotating the electric screw. The nut clamp 13 can be an electric clamp, and the opening of the electric clamp is adjusted by electric control to clamp the nut 100 to be welded.

[0033] Optionally, the nut conveying device 1 also includes a connecting arm 14 and an electromagnet 15, the two connecting arms 14 are respectively connected to the two outer side walls of the shell body 11, the two electromagnets 15 are respectively connected to the ends of the two connecting arms 14 away from the shell body 11, and the two electromagnets 15 are respectively used to energize to adsorb on the chemical container 200.

[0034] In this embodiment, combined with the attached Figure 1As shown, on the left and right side walls of the housing body 11 (attached Figure 1 Connecting arms 14 are respectively connected in the X-axis direction), and the ends of the two connecting arms 14 away from the shell body 11 are respectively provided with electromagnets 15, that is, the ends of the two connecting arms 14 for contacting with the chemical container 200 are respectively provided with electromagnets 15. After the nut conveying device 1 is moved to the corresponding welding position of the chemical container 200, the electromagnet 15 can be energized so that it is adsorbed on the chemical container 200. When the welding is completed and the power is turned off, the nut conveying device 1 can be detached from the chemical container 200 so as to be replaced to the next welding position.

[0035] Optionally, the nut automatic assembly and welding system also includes a laser projection calibration device 2, which includes a bracket 21, a laser emitter 22 and a perforated template 23. The laser emitter 22 and the perforated template 23 are spaced apart on the bracket 21, and a plurality of light-transmitting holes are evenly distributed on the perforated template 23. The laser emitter 22 is used to emit laser and project the laser through the light-transmitting holes onto the chemical container 200.

[0036] In this embodiment, combined with the attached Figure 2 As shown, the laser emitter 22 and the perforated template 23 are arranged at intervals on the bracket 21, wherein the perforated template 23 is evenly distributed with a plurality of light-transmitting holes. The laser emitted by the laser emitter 22 can be projected onto the chemical container 200 after passing through the light-transmitting holes, forming evenly arranged equidistant light spots at corresponding positions, and nuts are welded at the light spot positions to realize the welding of a row of nuts. The evenly arranged equidistant light spots replace the original manual marking operation, thereby improving efficiency.

[0037] Optionally, the bracket 21 is a gantry frame, which includes two spaced-apart columns 211 and a middle beam 212 connected between the two columns 211, the laser emitter 22 and the perforated template 23 are spaced-apart on the middle beam 212, and the lengths of the two columns 211 are adjustable.

[0038] In this embodiment, combined with the attached Figure 2 As shown, the bracket 21 is a portal frame, which includes two columns 211 arranged at intervals and a middle beam 212 connected between the two columns 211. The laser emitter 22 and the perforated template 23 are arranged at intervals on the middle beam 212. The bracket 21 can adjust the length of the column 211 according to the actual working conditions to adapt to different working conditions.

[0039] Optionally, the nut automatic assembly and welding system further comprises a roller 3, on which the chemical container 200 is mounted, and which is used to drive the chemical container 200 to rotate around its own axis.

[0040] In this embodiment, combined with the attached Figure 2 As shown, the chemical container 200 can be installed on two rollers 3 arranged at intervals, and the chemical container 200 can be driven to rotate around its own axis by the rotation of the two rollers 3. The rollers 3 can complete the motion control of the device drive components through the electrical control box. The electrical control box can be equipped with a PLC and a touch screen, which can be linked with the rollers 3 to realize the automatic stop of the chemical container 200 after a fixed distance rotation, and can also be combined with the laser projection calibration device 2 to realize the uniform projection of the chemical container 200.

[0041] Optionally, the nut automatic assembly welding system further includes a welding wire feeding mechanism 16 , which is disposed on the shell body 11 and is used to feed the welding wire between the nut 100 to be welded and the chemical container 200 .

[0042] In this embodiment, combined with the attached Figure 1 As shown, the welding wire feeding mechanism 16 is installed on the shell body 11. The welding wire feeding mechanism 16 is used to extend the welding wire between the nut 100 to be welded and the chemical container 200 to form a small-area conductive channel, increase the current density of the conductive channel under a certain welding current, and ensure stable arc starting.

[0043] Optionally, the nut conveying device 1 further includes a vibration mechanism, which is disposed between the telescopic end of the electric push rod and the nut clamping jaw 13 and is used to vibrate the nut clamping jaw 13 .

[0044] In this embodiment, a vibration mechanism is provided between the telescopic end of the electric push rod and the nut clamp 13. The vibration mechanism may be a small industrial frequency electromagnetic vibration device. Vibration can continuously create a gap between the nut 100 to be welded and the chemical container 200 and cause an arc to be struck, thereby improving the welding quality.

[0045] Optionally, a portion of the nut clamp 13 that is used to contact the nut 100 to be welded is provided with a magnet.

[0046] In this embodiment, the nut clamp 13 can be a clamp structure made of highly conductive and wear-resistant red copper material, and a magnet is provided at the part that contacts the nut 100 to be welded. The magnet can be an electromagnet, which is used to adsorb the nut 100 to be welded by powering on before welding, and the adsorption force can be eliminated by turning off the power after welding is completed.

[0047] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0048] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A nut automatic assembly welding system, characterized in that: include: A nut conveying device (1) and a welding gun; the nut conveying device (1) comprises a shell body (11), a nut loading clip (12), a nut clamping claw (13) and an electric push rod; the nut loading clip (12) is used to load a plurality of nuts (100) to be welded; the nut loading clip (12) is detachably connected to the shell body (11), and the nut loading clip (12) is used to convey the nuts (100) to be welded one by one into the shell body (11); the nut clamping claw (13) is arranged in the shell body (11) and is used to clamp the nuts (100) to be welded. The nut (100) to be welded, the electric push rod is arranged in the shell body (11), and the telescopic end of the electric push rod is connected to the nut clamp (13), the electric push rod is used to drive the nut clamp (13) to extend out of the shell body (11) and move towards the direction close to the chemical container (200), so as to make the nut (100) to be welded clamped on the nut clamp (13) abut against the chemical container (200), and the welding gun is used to weld the nut (100) to be welded to the chemical container (200).

2. The nut automatic assembly and welding system according to claim 1, characterized in that: The shell body (11) is a cylindrical structure with an internal cavity, and a window is opened at one end of the cylindrical structure. The nut clamp (13) and the electric push rod are both arranged in the cylindrical structure, and the electric push rod is used to drive the nut clamp (13) to extend from the window to the outside of the cylindrical structure.

3. The nut automatic assembly and welding system according to claim 2, characterized in that: The nut loading clip (12) comprises a clip housing and an electric screw, one end of the clip housing has an opening, and the opening is connected to the interior of the barrel structure, the electric screw is rotatably connected to the clip housing, the electric screw is used to load a plurality of nuts (100) to be welded, and the electric screw is used to transport the nuts (100) to be welded one by one from the opening to the barrel structure.

4. The nut automatic assembly and welding system according to claim 1, characterized in that: The nut conveying device (1) further comprises a connecting arm (14) and an electromagnet (15), wherein the two connecting arms (14) are respectively connected to the two outer side walls of the shell body (11), and the two electromagnets (15) are respectively connected to one end of the two connecting arms (14) away from the shell body (11), and the two electromagnets (15) are respectively used for being energized to be adsorbed on the chemical container (200).

5. The nut automatic assembly and welding system according to claim 1, characterized in that: The device also comprises a laser projection calibration device (2), the laser projection calibration device (2) comprising a bracket (21), a laser emitter (22) and a template with holes (23), the laser emitter (22) and the template with holes (23) being arranged on the bracket (21) at intervals, the template with holes (23) being evenly provided with a plurality of light-transmitting holes, the laser emitter (22) being used to emit laser light and project the laser light onto the chemical container (200) after passing through the light-transmitting holes.

6. The nut automatic assembly and welding system according to claim 5, characterized in that: The support (21) is a portal frame, comprising two columns (211) arranged at intervals and a middle beam (212) connected between the two columns (211); the laser emitter (22) and the perforated template (23) are arranged at intervals on the middle beam (212); and the lengths of the two columns (211) are adjustable.

7. The nut automatic assembly and welding system according to claim 1, characterized in that: It also comprises a roller (3), on which the chemical container (200) is mounted, and which is used to drive the chemical container (200) to rotate around its own axis.

8. The nut automatic assembly and welding system according to claim 1, characterized in that: It also includes a welding wire conveying mechanism (16), which is arranged on the shell body (11) and is used to convey the welding wire between the nut (100) to be welded and the chemical container (200).

9. The nut automatic assembly and welding system according to claim 1, characterized in that: The nut conveying device (1) further comprises a vibration mechanism, which is arranged between the telescopic end of the electric push rod and the nut clamping jaw (13) and is used to cause the nut clamping jaw (13) to vibrate.

10. The nut automatic assembly and welding system according to claim 1, characterized in that: The portion of the nut clamping jaw (13) for contacting the nut (100) to be welded is provided with a magnet.

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