Welding assembly of nut and cell phone stamping
Patent Information
- Application Number
- CN202522113448.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2026-10-20
- Estimated Expiration
- 2035-09-30
Smart Images
Figure CN224866640U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a welding assembly device, specifically a welding assembly device for a nut and a mobile phone stamping part. Background Technology
[0002] Currently, welded nuts have solved the problem of ordinary nuts being unable to secure the main body. Furthermore, welded nuts offer good strength and are easy to install, leading to their increasing use. Mobile phone stamping parts are essential components in various mobile phones, and to facilitate installation, nuts are typically welded onto these parts.
[0003] In mobile phone welding workshops, the welding of mobile phone stamping parts and nuts is generally done manually, including feeding, welding, and unloading. It is inconvenient to automatically feed, weld, and unload the mobile phone stamping parts and nuts, resulting in low automation, high labor intensity for employees, low welding efficiency, and difficulty in firmly fixing the nuts to the mobile phone stamping parts during welding, which can easily lead to displacement and affect the welding quality. Utility Model Content
[0004] To address the aforementioned problems in the existing technology, this utility model provides a welding assembly device for nuts and mobile phone stamping parts.
[0005] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a welding assembly device for a nut and a mobile phone stamping part, comprising: Server rack; The nut storage mechanism includes multiple nut storage bins, all of which are located at the top of the cabinet; The mobile phone stamping part carrying mechanism includes multiple first support frames, all of which are fixed on the top of the cabinet. Each first support frame is provided with two limiting plates, and a channel for the mobile phone stamping part material strip to pass through is provided between the two limiting plates. The nut moving mechanism includes a first frame, a first linear motor, a second frame, a second linear motor, a first cylinder, a first cylinder seat, a mounting plate, and suction tubes. The first frame is fixed to the top of the cabinet. The first linear motor is mounted on the first frame. A first slider of the first linear motor is fixed to one end of the second frame. The second linear motor is mounted on the second frame. A second slider of the second linear motor is fixed to the first cylinder seat. The first cylinder is mounted on the first cylinder seat. A first piston rod of the first cylinder is fixed to the mounting plate. Multiple suction tubes are evenly mounted on the mounting plate. The welding mechanism includes a third frame, a third linear motor, a fourth frame, a fourth linear motor, and a laser welding gun. The third frame is fixed to the top of the cabinet. The third linear motor is mounted on the third frame. The third slider of the third linear motor is fixed to the fourth frame. The fourth linear motor is mounted on the fourth frame. The laser welding gun is fixed to a fourth slider of the fourth linear motor. The laser welding gun is located above the mobile phone stamping part strip. The material pulling mechanism is fixed on the top of the cabinet and is used to pull the material strip of the mobile phone stamping parts.
[0006] Preferably, a material sensor is provided on the inner wall of the bottom end of the nut storage bucket. The nut storage bucket is clamped on a sleeve, which is installed on a base. The sleeve and the base are fixed to the cabinet by multiple screws.
[0007] Preferably, a nut feeding mechanism is provided on one side of the nut storage mechanism. The nut feeding mechanism includes a sliding frame, a storage box, a plug, a moving block, a moving rod, and a cover plate. The sliding frame and the storage box are both inclined. The sliding frame is provided with multiple sliding grooves. The storage box is located on one side of the sliding frame. The plug is located between at least one outlet of the storage box and the sliding groove. The storage box is provided with grooves corresponding to the moving rods. The middle of the multiple moving rods is fixed to a moving block. One end of the multiple moving rods is fixed to the plug. The sliding frame is fixed to the cover plate. A guide cavity is provided at the top of the nut storage box. The guide cavity is connected to one end of the sliding groove.
[0008] Preferably, the bottom four corners of the cabinet are each provided with a caster wheel and a support foot, with the support foot located on one side of the caster wheel.
[0009] Preferably, a positioning mechanism is provided below the welding mechanism. The positioning mechanism includes a second cylinder, a top plate, positioning pins, and a second cylinder seat. The second cylinder is mounted on the second cylinder seat, and the second cylinder seat is fixed to the top of the cabinet. A second piston rod of the second cylinder is fixed to the top plate, and multiple positioning pins are fixed to the top plate.
[0010] Preferably, a detection mechanism is provided on one side of the welding mechanism. The detection mechanism includes a fifth frame, a fifth linear motor, a bracket, and a CCD camera. The fifth frame is fixed on the top of the cabinet, the fifth linear motor is mounted on the fifth frame, the fifth slider of the fifth linear motor is fixed to the bracket, and the CCD camera is mounted on the bracket.
[0011] Preferably, the material pulling mechanism includes a frame, a rotary motor, a first rotating shaft, a friction wheel, a second rotating shaft, and a rotating wheel. The frame is fixed to the top of the cabinet. The rotary motor is installed on one side of the frame and connected to the first rotating shaft. Two friction wheels are fixed on the first rotating shaft. The rotating wheel is located above the friction wheels and installed on the second rotating shaft. The second rotating shaft is installed on the inside of the frame. The mobile phone stamping part strip passes between the rotating wheel and the friction wheel.
[0012] Preferably, a third cylinder is provided at the top of the frame, and a fixed shaft is provided below the third cylinder, with the fixed shaft fixed to the frame.
[0013] Compared with the prior art, the present invention has at least the following advantages: First, this utility model completes the automated feeding, welding, and unloading process through a nut storage mechanism, a mobile phone stamping part bearing mechanism, a nut moving mechanism, a welding mechanism, and a material pulling mechanism, thereby improving efficiency and reducing labor costs and workload.
[0014] Second, a positioning mechanism is provided below the welding mechanism. Each positioning pin in the positioning mechanism passes through a mobile phone stamping part and a nut at the same time, thereby positioning the mobile phone stamping part and the nut to prevent them from moving during welding, thus improving the welding quality. Attached Figure Description
[0015] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.
[0016] Figure 1 This is a schematic diagram of the overall structure of the welding assembly device for nuts and mobile phone stamping parts of this utility model.
[0017] Figure 2 This is a schematic diagram of the nut moving mechanism in this utility model.
[0018] Figure 3 This is a schematic diagram of the welding mechanism in this utility model.
[0019] Figure 4 This is a schematic diagram of the nut feeding mechanism and other components in this utility model.
[0020] Figure 5 This is a partial structural diagram of the nut feeding mechanism in this utility model.
[0021] Figure 6 This is a schematic diagram of the positioning mechanism in this utility model.
[0022] Figure 7 This is a schematic diagram of the detection mechanism in this utility model.
[0023] Figure 8 This is a schematic diagram of one side of the material pulling mechanism in this utility model.
[0024] Figure 9 This is a schematic diagram of the other side of the material pulling mechanism in this utility model.
[0025] Figure 10This is a schematic diagram of the structure of the nut and the mobile phone stamping part together in this utility model. Detailed Implementation
[0026] In view of the shortcomings of the prior art, the inventor of this utility model has, through long-term research and extensive practice, proposed the technical solution of this utility model. The following will further explain and illustrate the technical solution, its implementation process, and its principles in conjunction with the accompanying drawings and specific implementation examples.
[0027] It should be noted that the embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. The described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, the present invention covers any substitutions, modifications, equivalent methods and solutions made within the spirit, principles and scope of the present invention as defined by the claims. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0028] In the description of this application, the terms "first," "second," "third," and similar words do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "a" or "one," and similar words, do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including," and similar words, mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including," and their equivalents, but do not exclude other elements or objects. The terms "connected" or "linked," and similar words, are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.
[0029] In the description of this application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, when using positional terms such as "both sides," "outer side," and "upper and lower," it should be understood that they are used only for ease of understanding and description, taking into account that the structure may be oriented to other positions.
[0030] In the description of this application, unless otherwise expressly specified and limited, the technical or scientific terms used shall have the ordinary meaning understood by a person with ordinary skills in the art to which this application pertains. Terms such as “installation,” “connection,” and “joining” shall be interpreted broadly, for example, as fixed connection, detachable connection, mating connection, or integral connection. For a person skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0031] See Figures 1-10 The welding assembly device for nuts and mobile phone stamping parts of this utility model includes: Rack 1; The nut storage mechanism includes multiple nut storage bins 2, all of which are located on the top of the cabinet 1; The mobile phone stamping part carrying mechanism includes multiple first support frames 3, all of which are fixed on the top of the cabinet 1. Two limiting plates 4 are provided on the first support frame 3, and a channel for the mobile phone stamping part strip 20 to pass through is provided between the two limiting plates 4. The nut moving mechanism includes a first frame 5, a first linear motor 6, a second frame 7, a second linear motor 8, a first cylinder 9, a first cylinder seat 10, a mounting plate 11, and suction tubes 12. The first frame 5 is fixed to the top of the cabinet 1. The first linear motor 6 is mounted on the first frame 5. A first slider of the first linear motor 6 is fixed to one end of the second frame 7. The second linear motor 8 is mounted on the second frame 7. A second slider of the second linear motor 8 is fixed to the first cylinder seat 10. The first cylinder 9 is mounted on the first cylinder seat 10. A first piston rod of the first cylinder 9 is fixed to the mounting plate 11. Multiple suction tubes 12 are evenly mounted on the mounting plate 11. The welding mechanism includes a third frame 13, a third linear motor 14, a fourth frame 15, a fourth linear motor 16, and a laser welding gun 17. The third frame 13 is fixed to the top of the cabinet 1. The third linear motor 14 is mounted on the third frame 13. The third slider of the third linear motor 14 is fixed to the fourth frame 15. The fourth linear motor 16 is mounted on the fourth frame 15. The laser welding gun 17 is fixed to a fourth slider of the fourth linear motor 16. The laser welding gun 17 is located above the mobile phone stamping part strip 20. The material pulling mechanism 100 is fixed on the top of the cabinet 1 and is used to pull the mobile phone stamping part strip 20.
[0032] like Figure 4As shown, a material sensor 18 is installed on the inner wall of the bottom end of the nut storage bin 2. The nut storage bin 2 is clamped onto a sleeve 19, which is mounted on a base 22. The sleeve 19 and the base 22 are fixed to the cabinet 1 by multiple screws 21. When the material sensor 18 detects that the number of nuts in the nut storage bin 2 is lower than a preset value, it will promptly notify the operator to replenish the material. The sleeve 19 and the base 22 prevent the nut storage bin 2 from shaking, increasing its stability, and also facilitate the replacement of the nut storage bin 2.
[0033] like Figure 4 and Figure 5 As shown, a nut feeding mechanism is provided on one side of the nut storage mechanism. The nut feeding mechanism includes a sliding frame 23, a storage box 25, a plug 26, a moving block 27, a moving rod 28, and a cover plate 29. The sliding frame 23 and the storage box 25 are both in an inclined state. The sliding frame 23 is provided with multiple sliding grooves 24. The storage box 25 is located on one side of the sliding frame 23. The plug 26 is located between at least one outlet of the storage box 25 and the sliding groove 24. The storage box 25 is provided with grooves 30 corresponding to the moving rods 28. The middle of the multiple moving rods 28 is fixed to a moving block 27. One end of the multiple moving rods 28 is fixed to the plug 26. The sliding frame 23 is fixed to the cover plate 29. A guide cavity 31 is provided at the top of the nut storage barrel 2. The guide cavity 31 is connected to one end of the sliding groove 24. The storage bin 25 stores multiple nuts 32. When feeding the nut storage bucket 2, the moving rod 28 is pulled upward, causing the plug 26 and the moving block 27 to move. This ensures that the plug 26 does not block the channel between the outlet of the storage bin 25 and the chute 24. The nuts 32 exit from the outlet of the storage bin 25 and move into the chute 24, then slide into the guide cavity 31, thus feeding the nut storage bucket 2. When feeding the nut storage bucket 2 is not required, the plug 26 is positioned between at least one outlet of the storage bin 25 and the chute 24, blocking the channel between the outlet of the storage bin 25 and the chute 24. This prevents the nuts 32 from moving into the chute 24 and thus from entering the nut storage bucket 2. The structure is simple and easy to use.
[0034] like Figure 1 As shown, each of the four corners of the bottom of the cabinet 1 is equipped with a caster 33 and a support foot 34. The support foot 34 is located on one side of the caster 33. When the cabinet needs to be moved, the support foot 34 is adjusted (e.g., by rotating the support foot to shorten it) to lift the support foot 34 off the ground. The weight of the cabinet 1 is then entirely supported by the caster 33 at the four corners. At this time, pushing or pulling the cabinet 1 allows the caster 33 to move the cabinet 1 flexibly through rolling friction, reducing the difficulty of position adjustment. After the cabinet 1 is moved to the target position, the support foot 34 is adjusted in the opposite direction (e.g., by rotating the support foot to extend it) until the support foot 34 firmly contacts the ground and lifts the cabinet, lifting the caster 33 off the ground. At this time, the weight of the cabinet 1 is supported by the support foot 34, preventing the cabinet 1 from shifting due to external forces (such as collisions or vibrations), thus achieving stable fixation.
[0035] like Figure 6 As shown, a positioning mechanism is provided below the welding mechanism. The positioning mechanism includes a second cylinder 35, a top plate 36, positioning pins 37, and a second cylinder seat 39. The second cylinder 35 is mounted on the second cylinder seat 39, which is fixed to the top of the cabinet 1. A second piston rod of the second cylinder 35 is fixed to the top plate 36. Multiple positioning pins 37 are fixed to the top plate 36. Each positioning pin 37 passes through a mobile phone stamping part 38 and a nut 32 at the same time, thereby positioning the mobile phone stamping part 38 and the nut 32 to prevent them from moving during welding, thus improving the welding quality.
[0036] like Figure 7 As shown, a detection mechanism is provided on one side of the welding mechanism. The detection mechanism includes a fifth frame 40, a fifth linear motor 41, a bracket 42, and a CCD camera 43. The fifth frame 40 is fixed on the top of the cabinet 1. The fifth linear motor 41 is mounted on the fifth frame 40. The fifth slider of the fifth linear motor 41 is fixed to the bracket 42. The CCD camera 43 is mounted on the bracket 42. The fifth linear motor 41 drives the bracket 42 and the CCD camera 43 to move to the detection position. The CCD camera 43 detects the weld between the mobile phone stamping part 38 and the nut 32 to determine whether there are defects such as weld beads, cracks, and incomplete welds, thereby ensuring the welding quality.
[0037] like Figure 8 and Figure 9 As shown, the material pulling mechanism 100 includes a frame 44, a rotary motor 45, a first rotating shaft 46, a friction wheel 47, a second rotating shaft 48, and a rotating wheel 49. The frame 44 is fixed on the top of the cabinet 1. The rotary motor 45 is installed on one outer side of the frame 44 and is connected to the first rotating shaft 46. Two friction wheels 47 are fixed on the first rotating shaft 46. The rotating wheel 49 is located above the friction wheels 47 and is installed on the second rotating shaft 48. The second rotating shaft 48 is installed on the inner side of the frame 44. The mobile phone stamping part strip 20 passes between the rotating wheel 49 and the friction wheel 47. When it is necessary to pull the mobile phone stamping part strip 20, the rotary motor 45 starts, driving the first rotating shaft 46 and the friction wheel 47 to rotate. There is friction between the friction wheel 47 and the mobile phone stamping part strip 20, which drives the mobile phone stamping part strip 20 to move, that is, pull the mobile phone stamping part strip 20. In addition, a third cylinder 50 is provided at the top of the frame 44, and a fixed shaft 51 is provided below the third cylinder 50. The fixed shaft 51 is fixed to the frame 44. When it is not necessary to pull the mobile phone stamping part strip 20, such as during welding, the mobile phone stamping part strip 20 needs to be fixed. At this time, the third piston rod of the third cylinder 50 moves downward and cooperates with the fixed shaft 51 to fix the mobile phone stamping part strip 20. When it is necessary to pull the mobile phone stamping part strip 20, the third piston rod of the third cylinder 50 moves upward and releases the mobile phone stamping part strip 20.
[0038] The working principle of the welding assembly device for nuts and mobile phone stamping parts of this utility model is as follows: Two limiting plates 4 are provided on the first support frame 3, and a channel for the mobile phone stamping part strip 20 to pass through is provided between the two limiting plates 4. The two limiting plates 4 limit the two sides of the mobile phone stamping part strip 20 to prevent the mobile phone stamping part strip 20 from shifting. First, the first linear motor 6 starts, driving the second frame 7, the second linear motor 8, the first cylinder 9, the first cylinder seat 10, the mounting plate 11, and the suction tube 12 to move along the X-axis. The second linear motor 8 starts, driving the first cylinder 9, the first cylinder seat 10, the mounting plate 11, and the suction tube 12 to move along the Y-axis. The first cylinder 9 actuates, its first piston rod causing the mounting plate 11 and the multiple suction tubes 12 below it to descend vertically, allowing the suction tubes 12 to pick up nuts from the nut storage container 2. Then, the first linear motor 6, the second linear motor 8, and the first cylinder 9 start, placing the nuts picked up by the suction tubes 12 onto the mobile phone stamping part strip 20, i.e., the nut 32 is stably placed on the preset welding point of the mobile phone stamping part 38, completing the nut movement. The third linear motor 14 starts, driving the fourth frame 15, the fourth linear motor 16, and the laser welding gun 17 to make minor adjustments along the X-axis. The fourth linear motor 16 starts, driving the laser welding gun 17 to move along the Y-axis. Fine-tuning of the axial direction ensures that the laser emitter of the laser welding gun 17 is precisely aligned with the welding area between the nut and the mobile phone stamping part. The laser welding gun 17 is then activated, emitting a laser beam to heat and weld the welding area between the nut and the mobile phone stamping part, ensuring a firm connection. This completes the automated feeding, welding, and unloading process, improving efficiency and reducing labor costs and workload. After one section of the mobile phone stamping part strip 20 is welded, the pulling mechanism 100 pulls the strip 20 to sequentially weld other sections.
[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A welding assembly device for a nut and a mobile phone stamping part, characterized in that, It includes: Server rack (1); The nut storage mechanism includes multiple nut storage bins (2), all of which are located on the top of the cabinet (1); The mobile phone stamping part bearing mechanism includes multiple first support frames (3), which are fixed on the top of the cabinet (1). Two limiting plates (4) are provided on the first support frame (3), and a channel for the mobile phone stamping part strip (20) to pass through is provided between the two limiting plates (4). The nut moving mechanism includes a first frame (5), a first linear motor (6), a second frame (7), a second linear motor (8), a first cylinder (9), a first cylinder seat (10), a mounting plate (11), and suction tubes (12). The first frame (5) is fixed on the top of the cabinet (1). The first linear motor (6) is mounted on the first frame (5). A first slider of the first linear motor (6) is fixed to one end of the second frame (7). The second linear motor (8) is mounted on the second frame (7). A second slider of the second linear motor (8) is fixed to the first cylinder seat (10). The first cylinder (9) is mounted on the first cylinder seat (10). A first piston rod of the first cylinder (9) is fixed to the mounting plate (11). Multiple suction tubes (12) are evenly mounted on the mounting plate (11). The welding mechanism includes a third frame (13), a third linear motor (14), a fourth frame (15), a fourth linear motor (16), and a laser welding gun (17). The third frame (13) is fixed on the top of the cabinet (1). The third linear motor (14) is mounted on the third frame (13). The third slider of the third linear motor (14) is fixed to the fourth frame (15). The fourth linear motor (16) is mounted on the fourth frame (15). The laser welding gun (17) is fixed to a fourth slider of the fourth linear motor (16). The laser welding gun (17) is located above the mobile phone stamping part strip (20). The material pulling mechanism (100) is fixed on the top of the cabinet (1) and is used to pull the mobile phone stamping part strip (20).
2. The welding assembly device for the nut and the mobile phone stamping part according to claim 1, characterized in that, The bottom inner wall of the nut storage bucket (2) is equipped with a material sensor (18). The nut storage bucket (2) is clamped on a sleeve (19). The sleeve (19) is installed on a base (22). The sleeve (19) and the base (22) are fixed to the cabinet (1) by multiple screws (21).
3. The welding assembly device for the nut and the mobile phone stamping part according to claim 1, characterized in that, The nut storage mechanism is provided with a nut feeding mechanism on one side. The nut feeding mechanism includes a sliding frame (23), a storage box (25), a plug (26), a moving block (27), a moving rod (28), and a cover plate (29). The sliding frame (23) and the storage box (25) are both in an inclined state. The sliding frame (23) is provided with multiple sliding grooves (24). The storage box (25) is located on one side of the sliding frame (23). The plug (26) is located between at least one outlet of the storage box (25) and the sliding groove (24). The storage box (25) is provided with a groove (30) corresponding to the moving rod (28). The middle of the multiple moving rods (28) is fixed to a moving block (27). One end of the multiple moving rods (28) is fixed to the plug (26). The sliding frame (23) is fixed to the cover plate (29). The top of the nut storage bucket (2) is provided with a guide cavity (31). The guide cavity (31) is connected to one end of the sliding groove (24).
4. The welding assembly device for the nut and the mobile phone stamping part according to claim 1, characterized in that, The cabinet (1) has a caster (33) and a support foot (34) at the four corners of its bottom, with the support foot (34) located on one side of the caster (33).
5. The welding assembly device for the nut and the mobile phone stamping part according to claim 1, characterized in that, A positioning mechanism is provided below the welding mechanism. The positioning mechanism includes a second cylinder (35), a top plate (36), positioning pins (37), and a second cylinder seat (39). The second cylinder (35) is installed on the second cylinder seat (39), which is fixed on the top of the cabinet (1). A second piston rod of the second cylinder (35) is fixed to the top plate (36), and multiple positioning pins (37) are fixed on the top plate (36).
6. The welding assembly device for the nut and the mobile phone stamping part according to claim 1, characterized in that, A detection mechanism is provided on one side of the welding mechanism. The detection mechanism includes a fifth frame (40), a fifth linear motor (41), a bracket (42), and a CCD camera (43). The fifth frame (40) is fixed on the top of the cabinet (1). The fifth linear motor (41) is installed on the fifth frame (40). The fifth slider of the fifth linear motor (41) is fixed to the bracket (42). The CCD camera (43) is installed on the bracket (42).
7. The welding assembly device for the nut and the mobile phone stamping part according to claim 1, characterized in that, The material pulling mechanism (100) includes a frame (44), a rotary motor (45), a first rotating shaft (46), a friction wheel (47), a second rotating shaft (48), and a rotating wheel (49). The frame (44) is fixed on the top of the cabinet (1). The rotary motor (45) is installed on one side of the frame (44) and connected to the first rotating shaft (46). Two friction wheels (47) are fixed on the first rotating shaft (46). The rotating wheel (49) is located above the friction wheel (47) and installed on the second rotating shaft (48). The second rotating shaft (48) is installed on the inner side of the frame (44). The mobile phone stamping part strip (20) passes between the rotating wheel (49) and the friction wheel (47).
8. The welding assembly device for the nut and the mobile phone stamping part according to claim 7, characterized in that, A third cylinder (50) is provided at the top of the frame (44), and a fixed shaft (51) is provided below the third cylinder (50). The fixed shaft (51) is fixed to the frame (44).