Nut and screw assembly device for welding torch nozzle production

Abstract

The utility model relates to welding torch assembling technical field discloses a nut and screw thread common assembling device for welding torch nozzle production, it includes: machine table, sets up the index plate and five stations on the machine table, the index plate pivot is connected with drive assembly, and first nut station, second nut station, screw thread feeding station, riveting station and finished product discharge station are arranged in proper order along the index plate rotation direction, six material carriers are evenly installed on the index plate, and each station and material carrier are all corresponding after each action of the index plate. The utility model realizes the circulation of nut and screw thread three component assembling process, and two nut stations are simultaneously arranged, two nut stations commonly use the index plate and screw thread feeding, riveting and subsequent station, realize the assembly technology of multi -material compatibility, realize the high integration of equipment, improve production flexibility and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of welding torch assembly technology, and more specifically, to a nut and hafnium wire shared assembly device for welding torch nozzle production. Background Technology

[0002] In the manufacturing process of welding torch nozzles, a double-nut fixing structure is often used to ensure electrode stability. The hafnium wire electrode is assembled and fixed on the first nut electrode holder, and then locked and reinforced by the second nut, thus forming a stable connection. The hafnium wire electrode, the first nut electrode holder, and the second nut together constitute the core components of the welding torch nozzle electrode. When the hafnium wire electrode is energized, a high-temperature plasma arc is generated for metal cutting.

[0003] In the existing production process, nut assembly and hafnium wire electrode assembly are carried out using two separate machines, which occupy a large area. Each machine also requires corresponding conveying and riveting components, resulting in redundant equipment and material configuration, resource waste, and increased production costs. In addition, when the two machines are used for nut assembly and hafnium wire electrode assembly in joint production, materials need to be transferred and repositioned between the machines, reducing production efficiency.

[0004] Therefore, it is necessary to propose a shared assembly device for nuts and hafnium wires used in the production of welding torch nozzles, in order to at least partially solve the problems existing in the prior art. Utility Model Content

[0005] The utility model description section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This utility model description section is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0006] To address the aforementioned problems, this utility model discloses a shared assembly device for nuts and hafnium wire used in welding torch nozzle production; it includes:

[0007] The machine is equipped with an indexing turntable and five workstations. The rotating shaft of the indexing turntable is connected to the drive assembly. The first nut workstation, the second nut workstation, the hafnium wire feeding workstation, the riveting workstation, and the finished product discharge workstation are arranged sequentially along the rotation direction of the indexing turntable. Six material carriers are evenly installed on the indexing turntable. After each operation of the indexing turntable, each workstation corresponds to a material carrier.

[0008] Preferably, the first nut station and the second nut station have the same structure, both including: a nut vibratory plate and a nut picking mechanism installed on the machine base, a nut vibratory plate support base is provided at the bottom of the nut vibratory plate, a discharge pipe is connected to the discharge end of the nut vibratory plate, and the nut to be assembled is contained in the nut vibratory plate; the opening of the discharge pipe corresponds to the inlet end of the nut picking mechanism.

[0009] Preferably, the nut picking mechanism is a PPU robot, and the output end of the nut picking mechanism is equipped with a nut picking clamp.

[0010] Preferably, the hafnium wire feeding station includes: a hafnium wire vibratory feeder, a hafnium wire twisting mechanism, and a hafnium wire picking mechanism. The hafnium wire vibratory feeder is mounted on the machine platform via a hafnium wire vibratory feeder support. The hafnium wire twisting mechanism is located at the feeding end on one side of the hafnium wire picking mechanism, and the feeding end of the hafnium wire twisting mechanism is connected to the hafnium wire vibratory feeder via a material hose. The output end of the hafnium wire picking mechanism moves between the hafnium wire twisting mechanism and the material carrier.

[0011] Preferably, the hafnium wire feeding mechanism is configured as a PPU robotic arm, and the output end of the hafnium wire feeding mechanism is equipped with a hafnium wire vacuum nozzle.

[0012] Preferably, the riveting station includes a riveting bracket, an upper lifting cylinder, a riveting upper lifting module, a servo lifting cylinder, and a riveting joint. The riveting bracket is installed on the machine base, the upper lifting cylinder is installed at the lower part of the riveting bracket, and the riveting upper lifting module is installed at the output end of the upper lifting cylinder. The servo lifting cylinder is installed at the top of the riveting bracket, and the riveting joint is installed at the output end of the bottom of the servo lifting cylinder.

[0013] Preferably, the indexing turntable is located between the riveting top module and the riveting head, and the nut and wire assembly on the material carrier corresponds to the riveting top module and the riveting head.

[0014] Preferably, the finished product discharge station includes an inclined finished product discharge track.

[0015] Preferably, the indexing turntable includes an inner disc and an outer ring. The outer ring is rotatably disposed outside the inner disc. The inner disc is mounted on the machine base. The outer ring is connected to the output end of the drive assembly. The material carrier is mounted on the outer ring.

[0016] Preferably, the inner disc is equipped with a CCD camera and a finished product release mechanism, with the lens of the CCD camera facing the material carrier at the finished product discharge station; the output end of the finished product release mechanism corresponds to the inner side of the material carrier, and the CCD camera and the finished product release mechanism are electrically connected to the controller.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] The welding torch nozzle production nut and hafnium wire shared assembly device provided in this embodiment uses a rotating indexing turntable to transport materials between the first nut station, the second nut station, the hafnium wire feeding station, the riveting station, and the finished product discharge station, realizing the cyclical assembly process of the three components of the nut and hafnium wire. At the same time, two nut stations are set up, which share the indexing turntable and subsequent stations such as hafnium wire feeding and riveting, realizing a multi-material compatible assembly process, achieving a high degree of equipment integration, reducing the floor space, and improving production flexibility and efficiency.

[0019] The welding torch nozzle production nut and hafnium wire shared assembly device of this utility model, other advantages, objectives and features of this utility model will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this utility model. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the first nut station in this utility model;

[0023] Figure 3 This is a schematic diagram of the hafnium wire feeding station in this utility model;

[0024] Figure 4 This is a schematic diagram of the riveting station in this utility model;

[0025] Figure 5 This is a schematic diagram of the indexing turntable of this utility model.

[0026] In the diagram: 1. Machine base; 2. First nut station; 3. Hafnium wire feeding station; 4. Riveting station; 5. Finished product discharge station; 6. Indexing turntable; 7. Material carrier; 8. Second nut station; 9. CCD camera; 21. Nut vibratory feeder; 22. Nut picking mechanism; 23. Nut vibratory feeder support; 24. Discharge pipe; 25. Nut picking clamp; 31. Hafnium wire vibratory feeder; 32. Hafnium wire twisting mechanism; 33. Hafnium wire picking mechanism; 34. Hafnium wire vibratory feeder support; 35. Hafnium wire vacuum nozzle; 41. Riveting bracket; 42. Top cylinder; 43. Riveting top module; 44. Servo lifting cylinder; 45. Riveting joint; 51. Finished product discharge track; 61. Inner disc; 62. Outer ring; 63. Finished product release mechanism. Detailed Implementation

[0027] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] Example

[0029] The present invention will now be further described with reference to the accompanying drawings.

[0030] like Figures 1-5 As shown, the welding torch nozzle production nut and hafnium wire shared assembly device provided in this embodiment includes:

[0031] Machine 1 is equipped with an indexing turntable 6 and five workstations. The rotating shaft of the indexing turntable 6 is connected to the drive assembly. The first nut workstation 2, the second nut workstation 8, the hafnium wire feeding workstation 3, the riveting workstation 4, and the finished product discharge workstation 5 are arranged sequentially along the rotation direction of the indexing turntable 6. Six material carriers 7 are evenly installed on the indexing turntable 6. After each operation of the indexing turntable 6, each workstation corresponds to a material carrier 7.

[0032] The working principle and beneficial effects of this utility model are as follows:

[0033] The welding torch nozzle production nut and hafnium wire assembly device provided in this embodiment includes a first nut station 2, a second nut station 8, a hafnium wire feeding station 3, a riveting station 4, and a finished product discharge station 5 on the machine base 1, with an indexing turntable 6 at the center of the station. The first nut station 2, the second nut station 8, the hafnium wire feeding station 3, the riveting station 4, and the finished product discharge station 5 are all electrically connected to a controller, which provides unified and coordinated control.

[0034] During the assembly process, the first nut material at the first nut station 2 is placed on the material carrier of the indexing turntable 6; then the material carrier 7 rotates to the second nut station 8, and the second nut material at the second nut station 8 is placed in the center of the first nut to form a preliminary assembly of the first nut and the second nut; then it rotates to the hafnium wire feeding station 3, and the hafnium wire material is placed in the center hole of the nut to form a preliminary assembly of the three components: hafnium wire, the first nut, and the second nut; then it rotates to the riveting station 4 to rivet the three components; finally, it rotates to the finished product discharge station 5 to discharge the material.

[0035] The welding torch nozzle production nut and hafnium wire shared assembly device provided in this embodiment uses the rotation of the indexing turntable 6 to transport materials between the first nut station 2, the second nut station 8, the hafnium wire feeding station 3, the riveting station 4, and the finished product discharge station 5, realizing the cyclical assembly process of the three components of nut and hafnium wire. At the same time, two nut stations are set up, and the two nut stations share the indexing turntable 6 and subsequent stations such as hafnium wire feeding and riveting, realizing a multi-material compatible assembly process, achieving a high degree of equipment integration, reducing the floor space, and improving production flexibility and efficiency.

[0036] like Figure 2 As shown, in one embodiment, the first nut station 2 and the second nut station 8 have the same structure, both including: a nut vibratory plate 21 and a nut picking mechanism 22 installed on the machine base 1. The bottom of the nut vibratory plate 21 is provided with a nut vibratory plate support 23. The discharge end of the nut vibratory plate 21 is connected to a discharge pipe 24. The nut vibratory plate 21 contains nuts to be assembled. The opening of the discharge pipe 24 corresponds to the inlet end of the nut picking mechanism 22.

[0037] The working principle and beneficial effects of the above scheme are as follows:

[0038] Nut vibratory feeders 21 are installed at the first nut station 2 and the second nut station 8. Nut materials are poured directly into the hopper of the nut vibratory feeder 21 and then conveyed in an orderly manner through the discharge pipe 24 to the loading point of the nut picking mechanism 22. The material is then transferred to the material carrier 7 by the nut picking mechanism 22. After the first nut in the first nut station 2 is transferred to the material carrier 7, it rotates with the indexing turntable 6 to the second nut station 8. The second nut in the second nut station 8 is placed in the center of the first nut, realizing the initial assembly of the first nut and the second nut.

[0039] like Figure 2 As shown, in one embodiment, the nut picking mechanism 22 is configured as a PPU robot, and the output end of the nut picking mechanism 22 is provided with a nut picking clamp 25.

[0040] The working principle and beneficial effects of the above scheme are as follows:

[0041] The PPU robot is an industrial robot based on cams or software control, mainly used for material handling and assembly tasks on automated production lines. It features high speed, high precision, and modular design. The nut picking mechanism 22 is configured as a PPU robot, driving the nut picking clamp 25 to move between the loading point of the nut picking mechanism 22 and the material carrier 7 of the indexing turntable 6. In coordination with the action of the nut picking clamp 25, the robot cyclically performs the actions of picking up, moving, and placing nut materials, realizing the rapid transfer of nut materials from the nut vibratory plate 21 to the indexing turntable 6.

[0042] like Figure 3 As shown, in one embodiment, the hafnium wire feeding station 3 includes: a hafnium wire vibratory plate 31, a hafnium wire twisting mechanism 32, and a hafnium wire picking mechanism 33. The hafnium wire vibratory plate 31 is mounted on the machine base 1 via a hafnium wire vibratory plate support 34. The hafnium wire twisting mechanism 32 is located at the feeding end on one side of the hafnium wire picking mechanism 33. The feeding end of the hafnium wire twisting mechanism 32 is connected to the hafnium wire vibratory plate 31 via a material hose. The output end of the hafnium wire picking mechanism 33 moves between the hafnium wire twisting mechanism 32 and the material carrier 7.

[0043] The hafnium wire feeding mechanism 33 is configured as a PPU robotic arm, and the output end of the hafnium wire feeding mechanism 33 is equipped with a hafnium wire vacuum nozzle 35.

[0044] The working principle and beneficial effects of the above scheme are as follows:

[0045] The nut material is rotated to the hafnium wire feeding station 3 via the indexing turntable 6. The hafnium wire material in the hafnium wire vibrating plate 31 enters the material hose under the action of vibration, and then is transported to the hafnium wire rubbing mechanism 32 through the material hose. The rubbing cylinder rubs the material. The hafnium wire vacuum suction nozzle 35 of the hafnium wire picking mechanism 33 is moved to the rubbing cylinder to pick up the hafnium wire material. The hafnium wire material is moved to the material carrier 7 of the indexing turntable 6 and the hafnium wire is placed in the center hole of the above-mentioned nut assembly, realizing the initial assembly of the three components of hafnium wire, first nut and second nut.

[0046] like Figure 4 As shown, in one embodiment, the riveting station 4 includes a riveting bracket 41, an upper lifting cylinder 42, a riveting upper lifting module 43, a servo lifting cylinder 44, and a riveting joint 45. The riveting bracket 41 is mounted on the machine base 1, the upper lifting cylinder 42 is mounted on the lower part of the riveting bracket 41, and the riveting upper lifting module 43 is mounted on the top output end of the upper lifting cylinder 42. The servo lifting cylinder 44 is mounted on the top of the riveting bracket 41, and the riveting joint 45 is mounted on the bottom output end of the servo lifting cylinder 44.

[0047] The indexing turntable 6 is located between the riveting top module 43 and the riveting joint 45, and the nut and wire assembly on the material carrier 7 corresponds to the riveting top module 43 and the riveting joint 45.

[0048] The working principle and beneficial effects of the above scheme are as follows:

[0049] After the nut and wire assembly on the indexing turntable 6 rotates to the riveting station 4, it is positioned precisely between the riveting upper module 43 and the riveting head 45. The upper cylinder 42 is activated to push the riveting upper module 43 upwards, ejecting and securing the nut and wire assembly. Then, the servo lifting cylinder 44 is activated to move the riveting head 45 downwards, acting on the nut and wire assembly for riveting. After riveting, the servo lifting cylinder 44 resets upwards, and the upper cylinder 42 resets downwards, returning the nut and wire assembly to the indexing turntable 6. Through this structural design, rapid riveting of the nut and wire assembly is achieved above the placement position on the indexing turntable 6. After riveting, the assembly is returned to the indexing turntable 6, eliminating the need for repeated positioning and facilitating control.

[0050] like Figure 5 As shown, in one embodiment, the finished product discharge station 5 includes an inclined finished product discharge track 51, which facilitates the rapid sliding discharge of materials.

[0051] like Figure 5 As shown, in one embodiment, the indexing turntable 6 includes an inner disc 61 and an outer ring 62. The outer ring 62 is rotatably disposed outside the inner disc 61. The inner disc 61 is mounted on the machine base 1. The outer ring 62 is connected to the output end of the drive assembly. The material carrier 7 is mounted on the outer ring 62.

[0052] The working principle and beneficial effects of the above scheme are as follows:

[0053] The indexing turntable 6 is configured as a split structure, with the inner disc 61 fixedly mounted on the machine base 1 and the outer ring 62 connected to the drive assembly. One drive method is described below: the drive assembly includes a motor, a gearbox, and gears. A slide rail is provided on the upper inner side of the outer ring 62, and the outer ring 62 is rotatably connected to the inner disc 61 via the slide rail. Evenly spaced teeth are provided on the lower inner side of the outer ring 62. When the drive assembly is in use, the motor is started to rotate its output shaft. The electrode output shaft is connected to the gearbox, and the gearbox output shaft is connected to the gears. Through the meshing transmission of the gears and teeth, the outer ring 62 is rotated, thereby moving the material carrier 7 between various workstations.

[0054] like Figure 5 As shown, in one embodiment, the inner disc 61 is provided with a machine vision device and a finished product release mechanism 63. The machine vision device can be equipped with a CCD camera 9, and the lens of the CCD camera 9 is facing the material carrier 7 at the finished product discharge station 5. The output end of the finished product release mechanism 63 corresponds to the inner side of the material carrier 7. The CCD camera 9 and the finished product release mechanism 63 are electrically connected to the controller.

[0055] The working principle and beneficial effects of the above scheme are as follows:

[0056] The controller is electrically connected to the drive components and drive assemblies at each workstation, and also electrically connected to the CCD camera 9 and the finished product release mechanism 63. The lens of the CCD camera 9 is directly facing the material carrier 7 at the finished product discharge station 5. The controller activates the CCD camera 9 to acquire an image of the finished product, and based on the acquired image, detects whether there is hafnium wire in the center hole of the nut, determines whether the hafnium wire is riveted in place, and judges the finished product as good or defective. Acquiring image information through a CCD camera and analyzing the image with a PLC is a mature visual inspection technology, which will not be elaborated further here.

[0057] After the inspection is completed, the controller activates the finished product release mechanism 63, pushing the finished product material on the material carrier 7 to move it onto the finished product discharge track 51 for discharge. The controller can be electrically connected to the display screen, allowing workers to sort the finished products based on the good product evaluation displayed on the screen; alternatively, an electrically controlled diverter can be installed at the discharge end of the finished product discharge track 51, with the controller controlling the diverter's movement to guide good and defective products to different discharge channels.

[0058] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0059] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A nut and pin common assembly device for welding torch nozzle production, characterized in that, include: The machine (1) is equipped with an indexing turntable (6) and five workstations. The rotating shaft of the indexing turntable (6) is connected to the drive assembly. The first nut workstation (2), the second nut workstation (8), the hafnium wire feeding workstation (3), the riveting workstation (4), and the finished product discharge workstation (5) are arranged sequentially along the rotation direction of the indexing turntable (6). Six material carriers (7) are evenly installed on the indexing turntable (6). Each workstation corresponds to a material carrier (7) after each operation of the indexing turntable (6).

2. The nut and thread assembly device for welding torch nozzle production as claimed in claim 1, wherein The first nut station (2) and the second nut station (8) have the same structure, both including: a nut vibratory plate (21) and a nut picking mechanism (22) installed on the machine base (1). The bottom of the nut vibratory plate (21) is provided with a nut vibratory plate support seat (23). The discharge end of the nut vibratory plate (21) is connected to a discharge pipe (24). The nut vibratory plate (21) contains nuts to be assembled. The opening of the discharge pipe (24) corresponds to the feeding end of the nut picking mechanism (22).

3. The nut and pin common assembly device for welding torch nozzle production of claim 2, wherein, The nut picking mechanism (22) is set as a PPU robot, and the output end of the nut picking mechanism (22) is equipped with a nut picking clamp (25).

4. The nut and wire assembly device for welding torch nozzle production of claim 1, wherein, The hafnium wire feeding station (3) includes: a hafnium wire vibratory plate (31), a hafnium wire twisting mechanism (32) and a hafnium wire picking mechanism (33). The hafnium wire vibratory plate (31) is installed on the machine base (1) through a hafnium wire vibratory plate support (34). The hafnium wire twisting mechanism (32) is located at the feeding end on one side of the hafnium wire picking mechanism (33). The feeding end of the hafnium wire twisting mechanism (32) is connected to the hafnium wire vibratory plate (31) through a material hose. The output end of the hafnium wire picking mechanism (33) moves between the hafnium wire twisting mechanism (32) and the material carrier (7).

5. The nut and thread assembly device for welding torch nozzle production as claimed in claim 1, wherein, The hafnium wire picking mechanism (33) is configured as a PPU robot, and the output end of the hafnium wire picking mechanism (33) is equipped with a hafnium wire vacuum nozzle (35).

6. The assembly device for a shared nut and hafnium wire for welding torch nozzle production according to claim 1, characterized in that, The riveting station (4) includes a riveting bracket (41), an upper cylinder (42), a riveting upper module (43), a servo lifting cylinder (44), and a riveting joint (45). The riveting bracket (41) is installed on the machine base (1), the upper cylinder (42) is installed at the lower part of the riveting bracket (41), the riveting upper module (43) is installed at the output end of the upper cylinder (42), the servo lifting cylinder (44) is installed at the top of the riveting bracket (41), and the riveting joint (45) is installed at the output end of the servo lifting cylinder (44).

7. The assembly device for a shared nut and hafnium wire for welding torch nozzle production according to claim 1, characterized in that, The indexing turntable (6) is located between the riveting top module (43) and the riveting head (45), and the nut and wire assembly on the material carrier (7) corresponds to the riveting top module (43) and the riveting head (45).

8. The assembly device for a shared nut and hafnium wire for welding torch nozzle production according to claim 1, characterized in that, The finished product discharge station (5) includes an inclined finished product discharge track (51).

9. The welding torch nozzle production nut and hafnium wire shared assembly device according to claim 8, characterized in that, The indexing turntable (6) includes an inner disc (61) and an outer ring (62). The outer ring (62) is rotatably disposed outside the inner disc (61). The inner disc (61) is mounted on the machine base (1). The outer ring (62) is connected to the output end of the drive assembly. The material carrier (7) is mounted on the outer ring (62).

10. The assembly device for a shared nut and hafnium wire for welding torch nozzle production according to claim 9, characterized in that, The inner disc (61) is equipped with a CCD camera (9) and a finished product release mechanism (63). The lens of the CCD camera (9) is facing the material carrier (7) at the finished product discharge station (5). The output end of the finished product release mechanism (63) corresponds to the inside of the material carrier (7). The CCD camera (9) and the finished product release mechanism (63) are electrically connected to the controller.

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