A welding device for assembling an electric guitar

Abstract

The present invention provides a welding device for electric guitar assembly, which relates to the technical field of welding. The welding device for electric guitar assembly includes an erection chassis. Four groups of clamping motors are fixedly connected to the inner side of the erection chassis. The output ends of the clamping motors are all fixedly connected with clamping threaded rods. A transverse movement frame is threadedly connected to the outer surface of the clamping threaded rods. A limiting frame is fixedly connected to the upper end of the transverse movement frame. A corner motor is fixedly connected to the lower end of the limiting frame. The output end of the corner motor is fixedly connected with a corner frame. The corner frame is rotatably connected to the inside of the limiting frame. A feed compensation motor is fixedly connected to the upper end of the corner frame. In this welding device for electric guitar assembly, the assembly main board is clamped and erected by setting clamping plates, and welding is carried out below the assembly main board by setting a welding mechanism, so that the assembly main board does not need to be flipped during the welding process, and the welded circuit will not be pulled and broken, solving the problem that the space below the assembly main board is small during welding and it is easy to break the circuit when flipping.

Description

Technical Field

[0001] The present invention relates to the technical field of welding, and particularly to a welding device for electric guitar assembly. Background Art

[0002] The electric guitar is a product of modern science and technology, with obvious differences from traditional guitars in terms of appearance and sound. The body of the guitar is made of new hardwood and is equipped with devices such as volume and pitch regulators (tuning pegs) and tremolo structures (whammy bars). With the use of effectors, the electric guitar has strong expressiveness and occupies an important position in modern music. It is mostly used for song accompaniment.

[0003] Through retrieval, Chinese Patent Publication No. CN219852878U discloses a positioning and clamping device for guitar shell welding, which relates to the technical field of guitar auxiliary processing equipment. A clamping mechanism is installed on a table body, and the moving end of the clamping mechanism is slidably connected to a sliding groove. A positioning plate is installed on the table body, and the outer edge of the positioning plate is in contact with the moving end of the clamping mechanism. The positioning plate is fixedly connected to the table body by bolts and is located in the middle of the table body. Fixed blocks are respectively located on the four sides of the table body and are fixedly connected. A rotating rod is threadedly connected to the fixed block. The positioning and clamping device for guitar shell welding in the technical solution fixes the position of the splicing plate between the front and rear plates through the clamping mechanism and shapes the shape of the splicing plate at the same time. The front or rear plate of the guitar is supported by the positioning plate so that the front or rear plate of the guitar is in contact with the splicing plate, which is convenient for workers to carry out welding and does not require special workers to hold it, saving human resources.

[0004] Through retrieval, Chinese Patent Publication No. CN108135097B discloses a circuit board welding bracket. The circuit board includes a first surface and a second surface facing away from each other. The circuit board welding bracket includes: a bottom plate and a support column; the support column is arranged on the bottom plate, the circuit board is placed on the support column, and the second surface is opposite to the bottom plate. A lens is arranged on the bottom plate to observe the welding condition of the pins of the electrical components at the second surface when welding the electrical components to the first surface. This solution has the advantages of being able to check the welding condition of the pins without flipping the circuit board, greatly improving the production efficiency and reducing the labor cost at the same time.

[0005] Through retrieval, Chinese Patent Publication No. 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. It includes a feeding conveyor belt, a workbench, and a discharging conveyor belt. The feeding conveyor belt and the discharging conveyor belt are respectively arranged on both sides of the workbench. A buffer roller shaft is arranged on the side of the feeding conveyor belt away from the workbench. Roller shaft seats are arranged at both ends of the buffer roller shaft. A feeding device is arranged on the side of the roller shaft 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. A storage box is arranged on the side of the carrying device away from the discharging workbench. The load-bearing plates of the buffer roller shaft and the feeding device limit and buffer the feeding circuit board. The clamping device and the carrying device clamp and slide-transport the circuit board. The storage box stores the circuit boards in an orderly manner, preventing the circuit boards from directly falling during loading and unloading, protecting the surface of the circuit boards, improving the orderliness of circuit board loading and unloading, saving transportation time, and improving work efficiency.

[0006] In view of the above related technologies, the inventor found the following defects:

[0007] 1. When welding the main board of the electric guitar assembly, the space below is small due to the traction of the circuit, and it needs to be flipped for welding. However, after flipping, it is easy to cause the solder joints to fall off and the circuit to be damaged.

[0008] 2. When the circuit penetrates the main board of the assembly inside the guitar body for welding, due to the influence of the circuit length, it is impossible to pull the circuit, which is inconvenient for welding.

[0009] 3. After welding, moving the main board easily causes pulling and the problem of solder joint detachment. Summary of the Invention

[0010] Aiming at the deficiencies of the prior art, the present invention provides a welding device for electric guitar assembly, which solves the problems raised in the above background technology.

[0011] To achieve the above object, the present invention is realized by the following technical solutions: A welding device for assembling an electric guitar, including an erection chassis. Four clamping motors are fixedly connected to the inner side of the erection chassis. The output ends of the clamping motors are all fixedly connected with clamping threaded rods. A transverse movement frame is threadedly connected to the outer surface of the clamping threaded rods. A limiting frame is fixedly connected to the upper end of the transverse movement frame. A corner motor is fixedly connected to the lower end of the limiting frame. The output end of the corner motor is fixedly connected with a corner frame. The corner frame is rotatably connected to the inner side of the limiting frame. A feed compensation motor is fixedly connected to the upper end of the corner frame. The output end of the feed compensation motor is fixedly connected with a feed tooth column. The feed tooth column is inside the corner frame. A feed compensation plate is slidably connected to the inner side of the corner frame. The feed compensation plate meshes with the feed tooth column. There are four feed compensation plates in total. Placement brackets are arranged at the mutually remote ends of the four feed compensation plates. A clamping plate is fixedly connected to the upper end of the limiting frame. A settlement mechanism is fixedly connected to the upper surface of the limiting 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 arranged on the surface of the push-pull block. A guide tube is fixedly connected to the inner side of the push-pull block.

[0012] Preferably, the feed compensation plate is in a long strip shape. Teeth are arranged on the surface of the feed compensation plate and mesh with the feed tooth column. A through square hole is arranged inside 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 extend close to the welding position.

[0013] Preferably, the limiting frame is in the shape of a square frame. A round hole is arranged at the upper end of the limiting frame. A long plate is arranged at the upper end of the limiting frame. The clamping plate is arranged at the end face of the long plate. The limiting frame can play a role in supporting the upper mechanism and restricting the position.

[0014] Preferably, the settlement mechanism includes a first settlement telescopic rod. A top plate is fixedly connected to the free end of the first settlement telescopic rod. A second settlement telescopic rod is fixedly connected to the lower surface of the top plate. A support bottom plate is fixedly connected to the free end of the second settlement telescopic rod. The support bottom plate is sleeved outside the first settlement telescopic rod. A sinking frame is fixedly connected to the surface of the support bottom plate. Through the telescopic cooperation of the first settlement telescopic rod and the second settlement telescopic rod, the sinking frame can drive the main assembly board to descend and be installed inside the guitar case.

[0015] Preferably, the filling component includes a propulsion motor. A propulsion shaft is fixedly connected to the output end of the propulsion motor. There are two propulsion shafts respectively on both sides 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 propulsion shafts mesh with each other. The filling component can clamp and drive the solder for timely supply.

[0016] Preferably, the guiding tube is in the shape of a hollow pipe. One end of the guiding tube bends upward and is close to the welding mechanism. The other end of the guiding tube is provided with a flared opening and openings are provided on both sides. The propulsion shaft is located within the openings on both sides of the guiding tube. The guiding tube guides the solder to make the end of the solder supply close to the welding mechanism when replenishing the solder.

[0017] Preferably, the corner frame is in the shape of a disc. Through holes are provided on the outer peripheral surface of the corner frame. The feed compensation plate penetrates through the through holes of the corner frame. A convex key is provided at the upper end of the corner frame. The convex key of the corner frame is located inside the round hole provided at the upper end of the limit frame. The corner frame can rotate inside the limit frame to adjust the angle of the feed compensation plate.

[0018] Preferably, the sinking frame is in the shape of an "N". The sinking frame penetrates through the clamping plate. A convex key is provided at the lower end of the sinking frame. By providing a convex key below, the main assembly board can be clamped on the surface conveniently for placement and installation.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. For the welding device for electric guitar assembly, by setting the clamping plate to clamp and hold up the main assembly board, and by setting the welding mechanism to weld below the main assembly board, the main assembly board does not need to be flipped during the welding process, so that the welded circuit will not be pulled and broken, solving the problem that when welding the main assembly board, the space below is small and flipping is easy to break the circuit.

[0021] 2. For the welding device for electric guitar assembly, by setting the corner motor to drive the corner frame to rotate inside the limit frame, the welding mechanism is aligned with the connected solder joints. By driving the feed tooth column to rotate through the feed compensation motor, the feed compensation plate can be extended and approached the solder joints. By starting the extension and exploration extension rod to drive the push-pull block to slide inside the through square hole, the welding mechanism approaches the solder joints, achieving the effect of extending the welding mechanism close to the welding position for welding, and solving the problem that when welding the main assembly board, it is inconvenient to weld due to the influence of the length of the through circuit inside the guitar body and the inability to pull the circuit.

[0022] 3. For the welding device for electric guitar assembly, by setting a telescopic sinking mechanism, the welded main assembly board can be directly lowered and installed at the predetermined position, preventing the main board from being unable to be placed and installed due to the pulling of the circuit, achieving the effect of welding and installing in place, and preventing the problem that the solder joints fall off due to the pulling caused by moving the main board after welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 is a schematic diagram of the cross-moving frame structure of the present invention;

[0025] Figure 3 Schematic diagram of the clamping threaded rod structure of the present invention;

[0026] Figure 4 Schematic diagram of the corner frame structure of the present invention;

[0027] Figure 5 Schematic diagram of the feed compensation plate structure of the present invention;

[0028] Figure 6 Schematic diagram of the sinking frame structure of the present invention;

[0029] Figure 7 Schematic diagram of the clamping plate structure of the present invention;

[0030] Figure 8 Schematic diagram of the filling component structure of the present invention;

[0031] Figure 9 Schematic diagram of the guide tube structure of the present invention.

[0032] Wherein: 1, erection chassis; 2, clamping motor; 3, clamping threaded rod; 4, transverse movement frame; 5, limit frame; 51, long plate; 6, corner motor; 7, corner frame; 8, feed compensation motor; 9, feed tooth column; 10, feed compensation plate; 101, through square hole; 11, placement bracket; 12, clamping plate; 13, settlement mechanism; 131, first settlement telescopic rod; 132, top position plate; 133, second settlement telescopic rod; 134, support bottom plate; 135, sinking frame; 14, extension and exploration rod; 15, push-pull block; 16, welding mechanism; 17, filling component; 171, propulsion motor; 172, propulsion shaft; 18, guide tube. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present application.

[0034] It should be noted that all the directional indications in the embodiments of the present application are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If this specific posture changes, the directional indications will also change accordingly.

[0035] In this application, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] In addition, in this application, descriptions such as "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0037] As Figures 1-9 shown, a welding device for assembling an electric guitar includes a mounting chassis 1. Four sets 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 all fixedly connected with clamping threaded rods 3. A transverse movement frame 4 is threadedly connected to the outer surface of the clamping threaded rods 3. By setting four independent clamping motors 2 to drive different clamping threaded rods 3 to rotate respectively, the transverse movement frame 4 can move independently, so that the upper mechanism can adapt to assembly main boards of different shapes. A limiting frame 5 is fixedly connected to the upper end of the transverse movement frame 4. A corner motor 6 is fixedly connected to the lower end of the limiting frame 5. The output end of the corner motor 6 is fixedly connected with a corner frame 7. The corner frame 7 is rotatably connected to the inside of the limiting frame 5. A feed compensation motor 8 is fixedly connected to the upper end of the corner frame 7. The output end of the feed compensation motor 8 is fixedly connected with a feed tooth column 9. The feed tooth column 9 is inside the corner frame 7. A feed compensation plate 10 is slidably connected to the inside of the corner frame 7. The feed compensation plate 10 meshes with the feed tooth column 9. The outer shape of the feed compensation plate 10 is strip-shaped. Teeth are arranged on the surface of the feed compensation plate 10 and mesh with the feed tooth column 9. A through square hole 101 is arranged inside the feed compensation plate 10. A 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 tooth column 9, so that the feed compensation plate 10 can extend out and approach the welding position.

[0038] There are four groups of feed compensation plates 10 in total. The corner frame 7 is disc-shaped, and through holes are provided on the outer peripheral surface of the corner frame 7. The feed compensation plates 10 penetrate through the through holes 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 inside the circular hole provided at the upper end of the limit frame 5. The corner frame 7 can rotate inside the limit frame 5 to adjust the angle of the feed compensation plate 10.

[0039] At one end of the four groups of feed compensation plates 10 that are far away from each other, there is a placement bracket 11. A clamping plate 12 is fixedly connected to the upper end of the limit frame 5. The limit frame 5 is in the shape of a square frame. A circular 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 arranged on the end face of the long plate 51. The limit frame 5 can play a role in supporting the upper mechanism and restricting the position.

[0040] A settlement mechanism 13 is fixedly connected to the upper surface of the limit frame 5. The settlement mechanism 13 includes a first settlement telescopic rod 131. The free end of the first settlement telescopic rod 131 is fixedly connected to a top position plate 132. A second settlement telescopic rod 133 is fixedly connected to the lower surface of the top position plate 132. The free end of the second settlement telescopic rod 133 is fixedly connected to a support bottom plate 134. The support bottom plate 134 is sleeved outside the first settlement telescopic rod 131. A sinking frame 135 is fixedly connected to the surface of the support bottom plate 134. Through the telescopic cooperation of the first settlement telescopic rod 131 and the second settlement telescopic rod 133, the settlement mechanism 13 enables the sinking frame 135 to drive the total main board to descend and be installed inside the piano body.

[0041] The sinking frame 135 is in the shape of an "N". The sinking frame 135 penetrates through the clamping plate 12, and a convex key is provided at the lower end of the sinking frame 135. By providing a convex key below, the total main board can be clamped on the surface for convenient feeding and installation.

[0042] An extension and exploration rod 14 is fixedly connected to the inside of the feed compensation plate 10. A push-pull block 15 is fixedly connected to the free end of the extension and exploration rod 14. A welding mechanism 16 is fixedly connected to the side of the push-pull block 15 away from the extension and exploration rod 14. The welding mechanism 16 is an iron that can melt solder. By the elongation and shortening of the extension and exploration 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 provided on the surface of the push-pull block 15. A guide tube 18 is fixedly connected to the inside of the push-pull block 15. The filling component 17 includes a propulsion motor 171. The output end of the propulsion motor 171 is fixedly connected to a propulsion shaft 172. There are two groups of propulsion shafts 172 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 supply.

[0043] The guiding tube 18 is in the shape of a hollow pipe. One end of the guiding tube 18 bends upward and is close to the welding mechanism 16. The other end of the guiding tube 18 is provided with a flared opening and openings are arranged on both sides. The propulsion shaft 172 is located within the openings on both sides of the guiding tube 18. The guiding tube 18 guides the solder so that the end of the solder supply is close to the welding mechanism 16 when the solder is replenished.

[0044] During use, first place the device above the hole opened in the body of the piano, retract the sinking frame 135 to the uppermost end. Start the clamping motor 2 to drive the clamping threaded rod 3 to rotate, so that the transverse movement frame 4 is pushed, and the clamping plates 12 on the surface of the limit frame 5 move closer to the center of the device. Control and fix the main assembly board to be welded and installed through the four groups of clamping plates 12. The wiring penetrates through the inside of the piano body and is connected to the main assembly board. Start the appropriate rotation angle motor 6 to drive the rotation angle frame 7 to rotate inside the limit frame 5, so that the welding mechanism 16 can be aligned with the connected solder joints. Start the feed compensation motor 8 to drive the feed tooth column 9 to rotate, so that the feed compensation plate 10 can be extended and approach the solder joints. Start the extension and exploration rod 14 to drive the push-pull block 15 to slide inside the through square hole 101, so that the welding mechanism 16 approaches the solder joints. Start the propulsion motor 171 to drive the propulsion shaft 172 to rotate, so that the solder on the surface of the placement bracket 11 can be pushed to slide forward along the guiding tube 18 and approach the tip of the welding mechanism 16 to complete the welding of the wiring.

[0045] After the wiring is welded to the main assembly board, first start the clamping motor 2 to drive the clamping threaded rod 3 to rotate, so that the clamping of the main assembly board becomes loose. Retract the welding mechanism 16 through the extension and exploration rod 14 and the feed compensation motor 8, so that the main assembly board drops onto the convex key surface below the sinking frame 135. Start the first sinking telescopic rod 131 and the second sinking telescopic rod 133 to cooperate, so that the sinking frame 135 carries the main assembly board and drops into the inner side of the empty slot of the piano body where installation is required. Start the clamping motor 2 to move the sinking frame 135 away from the main board and withdraw it to complete the placement after welding.

[0046] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0047] In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0048] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. 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), 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 sinking mechanism (13) comprises a first sinking telescopic rod (131), and a top plate (132) is fixedly connected to the free end of the first sinking telescopic rod (131). The bottom of the top plate (132) A second sinking telescopic rod (133) is fixedly connected to the surface, a free end of the second sinking telescopic rod (133) is fixedly connected to a supporting base plate (134), the supporting base plate (134) is sleeved on the outside of the first sinking telescopic rod (131), a sinking frame (135) is fixedly connected to the surface of the supporting base plate (134), the sinking frame (135) is in 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); 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 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.

5. The welding device for assembling an electric guitar according to claim 4, 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).

6. 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).

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