Welding device for assembling electric guitar

Abstract

The invention provides a welding device for assembling an electric guitar, and relates to the technical field of welding. The welding device for assembling the electric guitar comprises an erecting chassis, four sets of clamping motors are fixedly connected to the inner side of the erecting chassis, the output ends of the clamping motors are fixedly connected with clamping threaded rods, the outer surfaces of the clamping threaded rods are in threaded connection with a transverse moving frame, the upper end of the transverse moving frame is fixedly connected with a limiting frame, and the lower end of the limiting frame is fixedly connected with a corner motor; the output end of the corner motor is fixedly connected with a corner frame, the corner frame is rotationally connected to the inner side of the limiting frame, and the upper end of the corner frame is fixedly connected with a feeding compensation motor. According to the welding device for assembling the electric guitar, the clamping plate is arranged for clamping and erecting the assembly mainboard, and the welding mechanism is arranged for welding below the assembly mainboard, so that the assembly mainboard does not need to be overturned in the welding process, and a welded circuit is not pulled and broken; the problem that when the assembly mainboard is welded, the lower space is small, overturning is needed, and a circuit is prone to being pulled apart is solved.

Description

Technical Field

[0001] The invention relates to the technical field of welding, in particular to a welding device for assembling electric guitars. Background Art

[0002] The electric guitar is a product of modern science and technology. It is significantly different from the traditional guitar in terms of appearance and sound. The guitar body is made of new hardwood and is equipped with volume and pitch adjusters (buttons) and tremolo structures (rockers). With the use of effectors, the electric guitar has a strong expressiveness and plays an important role in modern music. It is often used for song accompaniment.

[0003] Through searching, Chinese patent announcement number CN219852878U discloses a positioning clamping device for welding guitar shells, which relates to the technical field of guitar auxiliary processing equipment. A clamping mechanism is installed on the table body, and the moving end of the clamping mechanism is slidably connected to the sliding groove. A positioning plate is installed on the table body, and the outer edge of the positioning plate is contacted and connected with the moving end of the clamping mechanism. The positioning plate is fixedly connected to the table body by bolts, and the positioning plate is located in the middle position of the table body. The fixed blocks are respectively located on the four sides of the table body and are fixedly connected, and a rotating rod is threadedly connected to the fixed block. A positioning clamping device for welding guitar shells described in this technical solution fixes the position of the splicing plate between the front and rear plates by a clamping mechanism, and at the same time shapes the shape of the splicing plate, supports the front plate or the rear plate of the guitar by the positioning plate, so that the front plate or the rear plate of the guitar is in contact with the splicing plate, which is convenient for the staff to perform welding, does not require special staff to provide support, and saves human resources.

[0004] Through searching, Chinese patent announcement number CN108135097B discloses a circuit board welding bracket, the circuit board includes a first surface and a second surface opposite to each other, the circuit board welding bracket includes: a bottom plate and a support; the support is arranged on the bottom plate, the circuit board is placed on the support, and the second surface is opposite to the bottom plate, and a lens is arranged on the bottom plate, so as to observe the pin welding condition of the electrical component on the second surface through the lens when the electrical component is welded to the first surface. This scheme has the advantages of being able to check the welding condition of the pin without turning over the circuit board, greatly improving production efficiency, and reducing labor costs.

[0005] Through searching, Chinese patent announcement number CN114590565B discloses a non-invasive loading and unloading combined machine for circuit board welding and assembly, which relates to the technical field of circuit board welding, including a feeding conveyor belt, a workbench and a discharging conveyor belt. A feeding conveyor belt and a discharging conveyor belt are respectively arranged on both sides of the workbench, a buffer roller is arranged on the side of the feeding conveyor belt away from the workbench, roller seats are arranged at both ends of the buffer roller, a feeding device is arranged on the side of the roller seat away from the feeding conveyor belt, a clamping device is arranged between the workbench and the discharging conveyor belt, a carrying device is arranged on the side of the discharging conveyor belt away from the workbench, and a storage box is arranged on the side of the carrying device away from the discharging workbench, the buffer roller and the bearing plate of the feeding device limit and buffer the fed circuit board, the clamping device and the carrying device clamp and slide and transport the circuit board, the storage box stores the circuit board in an orderly manner, prevents the circuit board from falling directly for loading and unloading, protects the surface of the circuit board, improves the sequence of circuit board loading and unloading, saves transportation time, and improves work efficiency.

[0006] With respect to the above-mentioned related technologies, the inventors found the following defects: 1. When welding the main board of an electric guitar, the space below is too small due to the traction of the circuit, so it needs to be flipped over before welding. After flipping, the solder joints may fall off and the circuit may be damaged.

[0007] 2. When the line passes through the assembly mainboard inside the piano body, it is affected by the length of the line and cannot be pulled, which makes welding inconvenient.

[0008] 3. Moving the motherboard after soldering can easily cause pulling and the solder joints to fall off. Summary of the invention

[0009] In view of the deficiencies in the prior art, the present invention provides a welding device for assembling an electric guitar, which solves the problems raised in the above background technology.

[0010] To achieve the above objectives, the present invention is implemented through the following technical solutions: a welding device for assembling electric guitars, including a mounting chassis, four sets of clamping motors are fixedly connected to the inner side of the mounting chassis, the output ends of the clamping motors are fixedly connected to clamping threaded rods, the outer surfaces of the clamping threaded rods are threadedly connected to a transverse frame, the upper end of the transverse frame is fixedly connected to a limit frame, the lower end of the limit frame is fixedly connected to a corner motor, the output end of the corner motor is fixedly connected to a corner frame, the corner frame is rotatably connected to the inner side of the limit frame, the upper end of the corner frame is fixedly connected to a feed compensation motor, and the output end of the feed compensation motor is fixedly connected to a feed compensation motor. Feed tooth column, the feed tooth column is on the inner side of the corner frame, the inner side of the corner frame is slidably connected with a feed compensation plate, the feed compensation plate is meshed with the feed tooth column, there are four groups of feed compensation plates, and a placement bracket is provided at the end of the four groups of feed compensation plates away from each other, a clamping plate is fixedly connected to the upper end of the limit frame, a sinking mechanism is fixedly connected to the upper surface of the limit frame, an extension rod is fixedly connected to the inner side of the feed compensation plate, a push-pull block is fixedly connected to the free end of the extension rod, a welding mechanism is fixedly connected to the side of the push-pull block away from the extension rod, a filling component is provided on the surface of the push-pull block, and a guide tube is fixedly connected to the inner side of the push-pull block.

[0011] Preferably, the feed compensation plate is in the shape of an elongated strip, the surface of the feed compensation plate is provided with teeth and meshes with the feed tooth column, a through square hole is provided on the inner side of the feed compensation plate, the push-pull block is slidably connected to the inner wall of the through square hole, the feed compensation plate can be pushed by the feed tooth column, so that the feed compensation plate can be extended close to the welding position.

[0012] Preferably, the limiting frame is in the shape of a square frame, a round hole is provided at the upper end of the limiting frame, a long plate is provided at the upper end of the limiting frame, a clamping plate is provided on the end surface of the long plate, and the limiting frame can support the upper mechanism and limit the position.

[0013] Preferably, the sinking mechanism includes a first sinking telescopic rod, the free end of the first sinking telescopic rod is fixedly connected to a top plate, the lower surface of the top plate is fixedly connected to a second sinking telescopic rod, the free end of the second sinking telescopic rod is fixedly connected to a supporting bottom plate, the supporting bottom plate is sleeved on the outside of the first sinking telescopic rod, and the surface of the supporting bottom plate is fixedly connected to a sinking frame, the sinking mechanism is achieved through the telescopic cooperation of the first sinking telescopic rod and the second sinking telescopic rod, so that the sinking frame can drive the assembly mainboard to descend and be installed into the inner side of the piano case.

[0014] Preferably, the filling assembly includes a propulsion motor, and the output end of the propulsion motor is fixedly connected to a propulsion shaft. There are two groups of propulsion shafts, one on each side of the guide tube. The upper end of the propulsion shaft is a gear, and the lower end is a round shaft. The gears of the two groups of propulsion shafts are meshed with each other, and the filling assembly can clamp and drive the solder for timely replenishment.

[0015] Preferably, the guide tube is in the shape of a hollow pipe, one end of the guide tube is bent upward and close to the welding mechanism, the other end of the guide tube is provided with a bell mouth and openings on both sides, the propulsion shaft is located in the openings on both sides of the guide tube, and the guide tube guides the solder so that the solder is close to the end of the welding mechanism when it is replenished.

[0016] Preferably, the corner frame is disc-shaped, a through hole is provided on the outer peripheral surface of the corner frame, the feed compensation plate passes through the through hole of the corner frame, a convex key is provided on the upper end of the corner frame, the convex key of the corner frame is located on the inner side of the circular hole provided on the upper end of the limit frame, and the corner frame can rotate inside the limit frame to adjust the angle of the feed compensation plate.

[0017] Preferably, the sinking frame is in an "N" shape, the sinking frame passes through the clamping plate, and a convex key is arranged at the lower end of the sinking frame. The sinking frame is provided with a convex key at the bottom, so that the assembly mainboard can be clamped on the surface for easy placement and installation.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. The welding device for assembling electric guitars is provided with a clamping plate to clamp and support the assembly main board, and a welding mechanism is provided to perform welding under the assembly main board, so that the assembly main board does not need to be turned over during the welding process, and the welded circuit will not be pulled and broken, thereby solving the problem that the assembly main board needs to be turned over due to the small space below when welding, which easily breaks the circuit.

[0019] 2. The welding device for assembling electric guitars is provided with a corner motor to drive the corner frame to rotate inside the limit frame so that the welding mechanism is aligned with the connected welding point, and the feed compensation motor drives the feed tooth column to rotate so that the feed compensation plate can be extended to approach the welding point, and the push-pull block is driven to slide inside the through square hole by starting the extension rod to make the welding mechanism approach the welding point, so as to achieve the effect of extending the welding mechanism to approach the welding position for welding, and solves the problem that when welding the assembly main board, the line cannot be pulled due to the influence of the length of the line running through the inside of the guitar body, making it inconvenient to weld.

[0020] 3. The welding device for assembling electric guitars is provided with a retractable sinking mechanism, so that the assembled main board after welding can be directly lowered and installed in a predetermined position, preventing the main board from being pulled by the line and unable to be placed for installation, achieving the effect of welding and installation in situ, and preventing the problem of pulling and falling off of the solder joints caused by moving the main board after welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the transverse frame of the present invention; Figure 3 This is a schematic diagram of the structure of the clamping threaded rod of the present invention; Figure 4 This is a schematic diagram of the corner frame structure of the present invention; Figure 5 It is a schematic diagram of the structure of the feed compensation plate of the present invention; Figure 6 This is a schematic diagram of the structure of the sinking frame of the present invention; Figure 7 It is a schematic diagram of the sandwich panel structure of the present invention; Figure 8 This is a schematic diagram of the filling assembly structure of the present invention; Fig. 9 It is a schematic diagram of the guide tube structure of the present invention.

[0022] Among them: 1. Setting chassis; 2. Clamping motor; 3. Clamping threaded rod; 4. Transverse frame; 5. Limiting frame; 51. Long board; 6. Corner motor; 7. Corner frame; 8. Feed compensation motor; 9. Feed gear column; 10. Feed compensation plate; 101. Through square hole; 11. Placement bracket; 12. Clamping plate; 13. Sinking mechanism; 131. First sinking telescopic rod; 132. Top plate; 133. Second sinking telescopic rod; 134. Support bottom plate; 135. Sinking frame; 14. Probe extension rod; 15. Push-pull block; 16. Welding mechanism; 17. Filling assembly; 171. Propulsion motor; 172. Propulsion shaft; 18. Guide tube. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0024] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0025] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0026] In addition, in this application, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0027] like Figure 1-9 As shown, a welding device for assembling an electric guitar comprises a mounting chassis 1, four groups of clamping motors 2 are fixedly connected to the inner side of the mounting chassis 1, the output ends of the clamping motors 2 are fixedly connected to clamping threaded rods 3, the outer surfaces of the clamping threaded rods 3 are threadedly connected to a transverse frame 4, four groups of independent clamping motors 2 are provided to drive different clamping threaded rods 3 to rotate respectively, so that the transverse frame 4 can move independently, so that the upper mechanism can adapt to assembly mainboards of different shapes, the upper end of the transverse frame 4 is fixedly connected to a limit frame 5, the lower end of the limit frame 5 is fixedly connected to a corner motor 6, the output end of the corner motor 6 is fixedly connected to a corner frame 7, and the corner frame 7 is rotatably connected to the limit frame 5, a feed compensation motor 8 is fixedly connected to the upper end of the corner frame 7, and a feed gear column 9 is fixedly connected to the output end of the feed compensation motor 8. The feed gear column 9 is on the inner side of the corner frame 7, and a feed compensation plate 10 is slidably connected to the inner side of the corner frame 7. The feed compensation plate 10 is meshed with the feed gear column 9. The feed compensation plate 10 is in the shape of a long strip. The surface of the feed compensation plate 10 is provided with teeth and meshed with the feed gear column 9. A through square hole 101 is provided on the inner side of the feed compensation plate 10. The push-pull block 15 is slidably connected to the inner wall of the through square hole 101. The feed compensation plate 10 can be pushed by the feed gear column 9 so that the feed compensation plate 10 can be extended close to the welding position.

[0028] There are four groups of feed compensation plates 10. The corner frame 7 is disc-shaped. A through hole is set on the outer surface of the corner frame 7. The feed compensation plate 10 passes through the through hole of the corner frame 7. A convex key is set on the upper end of the corner frame 7. The convex key of the corner frame 7 is located on the inner side of the circular hole set on the upper end of the limit frame 5. The corner frame 7 can be rotated inside the limit frame 5 to adjust the angle of the feed compensation plate 10.

[0029] A placement bracket 11 is provided at one end of the four groups of feed compensation plates 10 that are away from each other, and a clamping plate 12 is fixedly connected to the upper end of the limit frame 5. The limit frame 5 has a square frame shape, a round hole is provided at the upper end of the limit frame 5, and a long plate 51 is provided at the upper end of the limit frame 5. The clamping plate 12 is provided on the end face of the long plate 51. The limit frame 5 can support the upper mechanism and limit the position.

[0030] A sinking mechanism 13 is fixedly connected to the upper surface of the limit frame 5, and the sinking mechanism 13 includes a first sinking telescopic rod 131, a top plate 132 is fixedly connected to the free end of the first sinking telescopic rod 131, a second sinking telescopic rod 133 is fixedly connected to the lower surface of the top plate 132, and a free end of the second sinking telescopic rod 133 is fixedly connected to a supporting bottom plate 134, the supporting bottom plate 134 is sleeved on the outer side of the first sinking telescopic rod 131, and a sinking frame 135 is fixedly connected to the surface of the supporting bottom plate 134. The sinking mechanism 13 enables the sinking frame 135 to drive the assembly mainboard to descend and be installed into the inner side of the piano body through the telescopic cooperation of the first sinking telescopic rod 131 and the second sinking telescopic rod 133.

[0031] The sinking frame 135 is in an "N" shape. The sinking frame 135 passes through the clamping plate 12. A convex key is arranged at the lower end of the sinking frame 135. The sinking frame 135 is provided with a convex key at the bottom so that the assembly mainboard can be clamped on the surface for easy placement and installation.

[0032] A probe extension rod 14 is fixedly connected to the inner side of the feed compensation plate 10, and a push-pull block 15 is fixedly connected to the free end of the probe extension rod 14. A welding mechanism 16 is fixedly connected to the side of the push-pull block 15 away from the probe extension rod 14. The welding mechanism 16 is a soldering iron that can melt solder. Through the extension and shortening of the probe extension rod 14, the push-pull block 15 can drive the welding mechanism 16 to hide and extend inside the feed compensation plate 10. A filling component 17 is arranged on the surface of the push-pull block 15. A guide tube 18 is fixedly connected to the inner side of the push-pull block 15. The filling component 17 includes a propulsion motor 171. A propulsion shaft 172 is fixedly connected to the output end of the propulsion motor 171. There are two groups of propulsion shafts 172, which are respectively on both sides of the guide tube 18. The upper end of the propulsion shaft 172 is a gear and the lower end is a round shaft. The gears of the two groups of propulsion shafts 172 are meshed with each other. The filling component 17 can clamp and drive the solder for timely replenishment.

[0033] The guide tube 18 is in the shape of a hollow pipe. One end of the guide tube 18 is bent upward and close to the welding mechanism 16. The other end of the guide tube 18 is provided with a bell mouth and openings on both sides. The propulsion shaft 172 is located in the openings on both sides of the guide tube 18. The guide tube 18 guides the solder so that the solder is close to the end of the welding mechanism 16 when it is replenished.

[0034] When in use, first place the device above the hole opened in the piano body, so that the sinking frame 135 is retracted to the uppermost end, and the clamping threaded rod 3 is driven to rotate by starting the clamping motor 2, so that the transverse frame 4 is pushed, so that the clamping plate 12 on the surface of the limit frame 5 is moved closer to the center of the device, and the assembly main board that needs to be welded and installed is controlled and fixed by four groups of clamping plates 12, and the use line passes through the inner side of the piano body and is connected to the assembly main board, and the appropriate angle motor 6 is driven to drive the angle frame 7 to rotate inside the limit frame 5, so that the welding mechanism 16 can be aligned with the connected welding point, and the feed compensation motor 8 is driven to drive the feed gear column 9 to rotate, so that the feed compensation plate 10 can be extended and extended to approach the welding point, and the push-pull block 15 is driven to slide inside the through square hole 101 by starting the extension rod 14, so that the welding mechanism 16 is close to the welding point, and the propulsion motor 171 is driven to rotate the propulsion shaft 172, so that the solder on the surface of the placement bracket 11 can be pushed to slide forward along the guide tube 18 to approach the tip of the welding mechanism 16 to complete the welding of the line; After the welding of the circuit and the assembly main board is completed, the clamping motor 2 is first started to drive the clamping threaded rod 3 to rotate, so that the clamping of the assembly main board is loosened, and the welding mechanism 16 is retracted by extending the extension rod 14 and the feed compensation motor 8, so that the assembly main board falls to the convex key surface below the sinking frame 135, and the first sinking telescopic rod 131 and the second sinking telescopic rod 133 are started to cooperate, so that the sinking frame 135 carries the assembly main board and falls to the inner side of the empty slot of the piano body where it needs to be installed, and the clamping motor 2 is started to make the sinking frame 135 away from the main board and withdrawn to complete the placement after welding.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0036] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding device for assembling an electric guitar, comprising a mounting chassis (1), characterized in that: The mounting chassis (1) is fixedly connected to the inner side with four groups of clamping motors (2), the output ends of the clamping motors (2) are fixedly connected to clamping threaded rods (3), the outer surfaces of the clamping threaded rods (3) are threadedly connected to a transverse frame (4), the upper end of the transverse frame (4) is fixedly connected to a limit frame (5), the lower end of the limit frame (5) is fixedly connected to a corner motor (6), the output end of the corner motor (6) is fixedly connected to a corner frame (7), the corner frame (7) is rotatably connected to the inner side of the limit frame (5), the upper end of the corner frame (7) is fixedly connected to a feed compensation motor (8), the output end of the feed compensation motor (8) is fixedly connected to a feed tooth column (9), the feed tooth column (9) is on the inner side of the corner frame (7), the inner side of the corner frame (7) is slidably connected to a feed compensation plate (10), and the feed compensation plate (10) is meshed with the feed tooth column (9); There are four groups of feed compensation plates (10) in total, and a placement bracket (11) is provided at one end of the four groups of feed compensation plates (10) that are away from each other, a clamping plate (12) is fixedly connected to the upper end of the limit frame (5), and a sinking mechanism (13) is fixedly connected to the upper surface of the limit frame (5); The feed compensation plate (10) is fixedly connected to an extension rod (14) on the inner side, a push-pull block (15) is fixedly connected to the free end of the extension rod (14), a welding mechanism (16) is fixedly connected to the side of the push-pull block (15) away from the extension rod (14), a filling component (17) is provided on the surface of the push-pull block (15), and a guide tube (18) is fixedly connected to the inner side of the push-pull block (15).

2. The welding device for assembling an electric guitar according to claim 1, characterized in that: The feed compensation plate (10) is in the shape of an elongated strip. The surface of the feed compensation plate (10) is provided with teeth that mesh with the feed tooth column (9). A through square hole (101) is provided on the inner side of the feed compensation plate (10). The push-pull block (15) is slidably connected to the inner wall of the through square hole (101).

3. The welding device for assembling an electric guitar according to claim 1, characterized in that: The limiting frame (5) is in the shape of a square frame. A circular hole is provided at the upper end of the limiting frame (5). A long plate (51) is provided at the upper end of the limiting frame (5). The clamping plate (12) is provided on the end surface of the long plate (51).

4. The welding device for assembling an electric guitar according to claim 1, characterized in that: The sinking mechanism (13) comprises a first sinking telescopic rod (131), the free end of the first sinking telescopic rod (131) is fixedly connected to a top plate (132), the lower surface of the top plate (132) is fixedly connected to a second sinking telescopic rod (133), the free end of the second sinking telescopic rod (133) is fixedly connected to a supporting bottom plate (134), the supporting bottom plate (134) is sleeved on the outside of the first sinking telescopic rod (131), and the surface of the supporting bottom plate (134) is fixedly connected to a sinking frame (135).

5. The welding device for assembling an electric guitar according to claim 1, characterized in that: The filling assembly (17) comprises a propulsion motor (171), the output end of the propulsion motor (171) being fixedly connected to a propulsion shaft (172), there being two sets of propulsion shafts (172) respectively located on both sides of the guide tube (18), the upper end of the propulsion shaft (172) being a gear and the lower end being a circular shaft, the gears of the two sets of propulsion shafts (172) being meshed with each other.

6. The welding device for assembling an electric guitar according to claim 5, characterized in that: The guide tube (18) is in the shape of a hollow pipe. One end of the guide tube (18) is bent upward and close to the welding mechanism (16). The other end of the guide tube (18) is provided with a bell mouth and openings are provided on both sides. The propulsion shaft (172) is located in the openings on both sides of the guide tube (18).

7. The welding device for assembling an electric guitar according to claim 3, characterized in that: The corner frame (7) has a disc-like shape, a through hole is provided on the outer peripheral surface of the corner frame (7), the feed compensation plate (10) passes through the through hole of the corner frame (7), a convex key is provided at the upper end of the corner frame (7), and the convex key of the corner frame (7) is located on the inner side of the circular hole provided at the upper end of the limit frame (5).

8. The welding device for assembling an electric guitar according to claim 4, characterized in that: The sinking frame (135) has an "N" shape, the sinking frame (135) passes through the clamping plate (12), and a convex key is provided at the lower end of the sinking frame (135).

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