A high-efficiency automatic wire feeding welding device

Abstract

The application belongs to the technical field of welding, in particular to a high-efficiency automatic wire feeding welding device, which comprises a shell, a lead-out pipe communicated and fixed to the end of the shell, a winding wheel installed in the shell, a rectangular groove opened in the inner bottom wall of the shell, a sliding block slidably connected in the rectangular groove, a receiving wheel slidably connected to the top end of the sliding block, a guide rod fixed to the side of the sliding block and penetrating through the shell, and a gas pressure plate fixed to the side of the guide rod outside the shell. The high-efficiency automatic wire feeding welding device is provided with the receiving wheel. When the welding wire is driven, the receiving wheel side receives the welding wire. When the pulling force of the welding wire is too large, the receiving wheel moves to relax the tight welding wire, reduce the pulling force of the welding wire, protect the welding wire, prevent the welding from being suspended due to the wire breakage, and affect the welding efficiency.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of welding, in particular to an efficient automatic wire feeding welding device. BACKGROUND

[0002] The automatic wire feeder is an automatic wire feeding device that can continuously and stably feed the welding wire according to the set parameters under the microcomputer control; the wire feeding is a very important operation link in the welding process, and the wire feeding process can be completed by replacing the finger twisting of the welding wire with the automatic wire feeding mode, which can effectively improve the welding efficiency and save the welding wire cost.

[0003] In the existing wire feeder, the welding wire is wound in the inside of the wire feeder, and a pair of rotating drive wheels can drive the welding wire to separate from the winding wheel; in this process, the welding wire needs to maintain a certain tension to avoid loosening on the winding wheel and thus forming a dead knot; especially for the welding wire with small diameter, which is soft and used for welding electronic components; to solve the above problems, the wire feeder needs to be tensioned during use, but some welding wires are low in strength and prone to breakage after being tensioned; when the welding wire breaks, the worker needs to handle it, which suspends the welding process and affects the welding efficiency.

[0004] Therefore, the present application provides an efficient automatic wire feeding welding device. SUMMARY

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0006] The technical scheme adopted by the present application to solve the technical problems is: the efficient automatic wire feeding welding device comprises a shell, a lead-out pipe is communicated and fixed to the end of the shell; a winding wheel is installed in the inside of the shell, and a rectangular groove is formed in the inner bottom wall of the shell; a sliding block is slidably connected in the inside of the rectangular groove, and a supporting wheel is slidably connected to the top end of the sliding block.

[0007] A guide rod is fixed to the side surface of the sliding block and penetrates the shell, and an air pressure plate is fixed to the side of the guide rod outside the shell; an air cylinder is slidably connected to the outside of the air pressure plate, and a gas pump is connected to the air cylinder; a gas guide pipe is communicated and arranged on the side surface of the air cylinder, and a pressure relief valve is fixedly connected to the end of the gas guide pipe away from the air cylinder; a drive assembly is installed between the lead-out pipe and the supporting wheel.

[0008] Preferably, the drive assembly comprises a pair of pads; the pads are fixed to the inner bottom wall of the shell; a support fixed to the inner wall of the shell is arranged above the pads, a first hydraulic cylinder is fixed to the top end of the support, a second hydraulic cylinder is fixed to the output end of the first hydraulic cylinder, and a pressing plate is fixed to the output end of the second hydraulic cylinder.

[0009] The bottom end of the pressing plate is provided with a receiving groove; an arc-shaped piece is arranged in the receiving groove; the bottom end of the arc-shaped piece is adapted to the welding wire to be used; and a pair of fixed columns are fixedly connected between the top end of the arc-shaped piece and the pressing plate.

[0010] Preferably, two pairs of regulating hydraulic cylinders are fixedly connected to the top end of the pressing plate based on the center symmetry; the output ends of the regulating hydraulic cylinders penetrate into the receiving groove and are connected to the top end of the arc-shaped piece.

[0011] Preferably, the arc-shaped piece is made of rubber; a plurality of air holes are arranged in the bottom end of the arc-shaped piece; a sealing cover is fixedly connected to the top end of the arc-shaped piece and directly above the air holes; a communication air pipe is fixedly connected to the side surface of the sealing cover in communication; and a suction pump is connected to the communication air pipe.

[0012] Preferably, a rotating belt is rotatably installed at the top end of the cushion block.

[0013] Preferably, a pair of driving motors are fixedly connected to the two ends of the cushion block; a driving shaft is fixedly connected to the output end of the driving motor; and the driving shaft is inserted into the inside of the rotating belt.

[0014] Preferably, a rubber piece is sleeved on the surface of the driving shaft, and the rubber piece is in a compressed state.

[0015] Preferably, the driving motor controls the rotating belt to rotate and the movement of the pressing plate to be kept synchronous through the driving shaft.

[0016] Preferably, a pair of vertical limiting rollers are installed between the cushion block and the receiving wheel.

[0017] Preferably, a pair of horizontal limiting rollers are installed between the cushion block and the receiving wheel and on one side of the pair of vertical limiting rollers.

[0018] The beneficial effects of the present application are as follows:

[0019] 1. The high-efficiency automatic wire feeding welding device can prevent the welding wire from being broken and suspended, and can reduce the pulling force of the welding wire when the welding wire is driven to pass through the side surface of the receiving wheel and the position of the receiving wheel is moved to relax the tight welding wire.

[0020] 2. The high-efficiency automatic wire feeding welding device provided by the application, through the following arrangement: when the welding wire is driven to move, the welding wire is positioned between the cushion block and the pressing plate; specifically, the second hydraulic cylinder drives the pressing plate to move downward, the pressing plate drives the arc-shaped sheet to cover and press on the surface of the welding wire, and the welding wire is extruded to the top end of the cushion block; and the welding wire is embedded into the bottom end of the arc-shaped sheet; then the first hydraulic cylinder drives the second hydraulic cylinder to move in the direction of the guide pipe, the second hydraulic cylinder drives the pressing plate to move synchronously, the pressing plate drives the arc-shaped sheet to move synchronously, and the arc-shaped sheet drives the welding wire to move on the top end of the cushion block through the friction force between the arc-shaped sheet and the welding wire; since the arc-shaped sheet fully contacts the welding wire, the extrusion area of the welding wire is increased, the welding wire is not prone to deformation after being extruded, the driving effect is ensured, and the welding wire is prevented from being excessively extruded in the local part to cause large deformation and breakage. BRIEF DESCRIPTION OF DRAWINGS

[0021] The application will be further described below in combination with the drawings.

[0022] Figure 1 is a perspective view of the application;

[0023] Figure 2 is a schematic view of the internal structure of the shell of the application;

[0024] Figure 3 is a schematic view of the shell of the application;

[0025] Figure 4 is a schematic view of the side surface of the shell of the application;

[0026] Figure 5 is a schematic view of the connecting structure of the guide rod of the application;

[0027] Figure 6 is a schematic view of the air pressure plate of the application;

[0028] Figure 7 is a schematic view of the connecting structure of the support of the application;

[0029] Figure 8 is a schematic view of the connecting structure of the pressing plate of the application;

[0030] Figure 9 is a schematic view of the end portion of the pressing plate of the application;

[0031] Figure 10 is a schematic view of the connecting structure of the arc-shaped sheet of the application;

[0032] Figure 11 is a schematic view of the arc-shaped sheet of the application.

[0033] As shown in the figure: 1, the shell; 11, the lead pipe; 12, winding wheel; 2, the receiving wheel; 20, rectangular groove; 21, sliding block; 22, guide rod; 23, air pressure plate; 24, air cylinder; 25, pressure relief valve; 26, air pipe; 3, cushion block; 31, rotating belt; 32, drive shaft; 4, support; 41, the first hydraulic cylinder; 42, the second hydraulic cylinder; 43, the pressing plate; 44, fixed column; 45, arc piece; 46, control hydraulic cylinder; 47, sealing cover; 48, communication air pipe; 5, vertical limiting roller; 51, horizontal limiting roller. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application is further described below in conjunction with specific embodiments.

[0035] As Figures 1 to 11 shown, the high-efficiency automatic wire feeding welding device of the embodiment of the present application comprises a shell 1, the end of the shell 1 is communicated and fixedly connected with a lead pipe 11; a winding wheel 12 is installed inside the shell 1, a rectangular groove 20 is formed in the inner bottom wall of the shell 1; a sliding block 21 is slidably connected inside the rectangular groove 20, a receiving wheel 2 is slidably connected to the top end of the sliding block 21;

[0036] A guide rod 22 is fixedly connected to the side of the sliding block 21 and penetrates out of the shell 1, the guide rod 22 is fixedly connected with an air pressure plate 23 on one side outside the shell 1; an air cylinder 24 is slidably connected to the outside of the air pressure plate 23, the air cylinder 24 is externally connected with an air pump; an air pipe 26 is communicated and arranged on the side of the air cylinder 24, one end of the air pipe 26 away from the air cylinder 24 is fixedly connected with a pressure relief valve 25 installed on the side of the shell 1; a driving assembly is installed between the lead pipe 11 and the receiving wheel 2;

[0037] In the welding process, for the low strength welding wire; after tensioning, it is easy to produce broken wire; the staff needs to handle when the welding wire is broken, pause the welding process, affect the welding efficiency To solve the above problems, the embodiment of the present application sets up the supporting wheel 2 and other structures, and the specific use process is as follows: in use, the welding wire wound on the winding wheel 12 is led out through the lead-out pipe 11; and the driving assembly in the shell 1 is used to pull the welding wire; so that the welding wire is separated from the shell 1; in the process of pulling the welding wire; the welding wire is supported on the side of the supporting wheel 2; the supporting wheel 2 is located on one side of the inner shell 1 away from the center line of the air cylinder 24, and the supporting wheel 2 deviates from the straight line direction of the winding wheel 12 and the lead-out pipe 11; therefore, the welding wire will generate extrusion force on the side of the supporting wheel 2; when the supporting wheel 2 is extruded, the extrusion force will be transmitted to the guide rod 22 through the bottom slider 21, and the air pressure plate 23 at the end of the guide rod 22 extrudes the air in the air cylinder 24; when the pulling force of the welding wire increases and reaches the broken wire standard, the welding wire drives the supporting wheel 2; the slider 21 at the bottom of the supporting wheel 2 slides in the rectangular groove 20; and slides to the direction of the air cylinder 24; it should be pointed out that the initial position of the slider 21 is located at the slot opening away from the air cylinder 24 of the rectangular groove 20; moving the position of the supporting wheel 2, relaxing the tight welding wire; reduce the pulling force of the welding wire; at the same time, when the air pressure in the air cylinder 24 is too large, it will be relieved through the relief valve 25 at the end of the air guide pipe 26; the air pressure in the air cylinder 24 is the same as the extrusion force of the guide rod 23 on the air pressure plate 23; based on the principle that the action force and the reaction force are equal in size, the extrusion force of the slider 21 on the guide rod 22 is equal to the air pressure in the air cylinder 24; therefore, the extrusion force of the welding wire on the side of the supporting wheel 2 is equal to the air pressure in the air cylinder 24; when the air pressure in the air cylinder 24 is greater than a certain size, it is automatically relieved through the relief valve 25; and the air pump connected to the air cylinder 24 continues to inflate the inside of the air cylinder 24; therefore, it can be obtained that; when the welding wire is stably pulled, the inflation rate of the air pump to the air cylinder 24 is the same as the exhaust rate of the relief valve; when the pulling force of the welding wire increases and does not reach the broken wire standard, the inflation rate of the air pump to the air cylinder 24 is less than the exhaust rate of the relief valve; so that the gas pressure in the air cylinder 24 remains constant; the above process can avoid the broken wire caused by the excessive extrusion force of the welding wire on the side of the supporting wheel 2; protect the welding wire; prevent the welding from being paused due to the broken wire, affecting the welding efficiency; it should be pointed out that the slider 21 will be clamped when it moves to the slot opening close to the air cylinder 24 in the rectangular groove 20, but in actual use, the pulling force of the welding wire will only increase during the initial pulling adjustment; and the staff will reset the slider 21 every time the welding wire is added; therefore, the situation that the slider 21 is clamped does not exist in actual use.

[0038] The driving assembly comprises a pair of pads 3; the pads 3 are fixed to the inner bottom wall of the shell 1; an upper portion of the pad 3 is provided with a support 4 fixed to the inner wall of the shell 1, a top end of the support 4 is fixed with a first hydraulic cylinder 41, an output end of the first hydraulic cylinder 41 is fixed with a second hydraulic cylinder 42, and an output end of the second hydraulic cylinder 42 is fixed with a pressing plate 43;

[0039] A bottom end of the pressing plate 43 is provided with a receiving groove; an inner portion of the receiving groove is provided with an arc-shaped piece 45, a bottom end arc surface of the arc-shaped piece 45 is adapted to a welding wire to be used; a top end between the arc-shaped piece 45 and the pressing plate 43 is fixed with a pair of fixing columns 44;

[0040] When the welding wire is driven to move, the welding wire is positioned between the pad 3 and the pressing plate 43; specifically, the second hydraulic cylinder 42 drives the pressing plate 43 to move downward, the pressing plate 43 drives the arc-shaped piece 45 to press on the surface of the welding wire, and the welding wire is extruded to the top end of the pad 3; and the welding wire is embedded into the bottom end of the arc-shaped piece 45; then the first hydraulic cylinder 41 drives the second hydraulic cylinder 42 to move toward the outlet pipe 11, the second hydraulic cylinder 42 drives the pressing plate 43 to move synchronously, the pressing plate 43 drives the arc-shaped piece 45 to move synchronously, and the arc-shaped piece 45 drives the welding wire to move on the top end of the pad 3 through the friction force between the arc-shaped piece 45 and the welding wire; since the arc-shaped piece 45 is in full contact with the welding wire, the extrusion area of the welding wire is increased, the welding wire is not easily deformed after being extruded, the driving effect is ensured, and the welding wire is not easily broken due to excessive local extrusion and large deformation; it should be noted that the welding wire is flattened when it is excessively extruded, the area of the part of the cross section is reduced, the tensile strength is reduced, and the welding wire is easily broken; it should be noted that the arc-shaped piece 45 above the pad 3 is alternately driven to move, so that the welding wire is stably and continuously driven.

[0041] Two pairs of regulating hydraulic cylinders 46 are fixed to the top end of the pressing plate 43 based on central symmetry, output ends of the regulating hydraulic cylinders 46 penetrate into the receiving groove and are connected to the top end of the arc-shaped piece 45; for welding wires with different diameters; the regulating hydraulic cylinders 46 can drive the two ends of the arc-shaped piece 45 to move up and down, the top end of the arc-shaped piece 45 is limited by the fixing columns 44, so that when the two ends of the arc-shaped piece 45 move up and down, the arc of the arc-shaped piece 45 is adjusted; and then the arc-shaped piece 45 is adapted to welding wires with different diameters; the technical scheme in the application improves the adaptability to the size and type of the welding wire.

[0042] The arc-shaped piece 45 is made of rubber; a plurality of air holes are formed in the bottom end of the arc-shaped piece 45; a sealing cover 47 is fixed to the top end of the arc-shaped piece 45 and above the air holes; a communication air pipe 48 is fixed to the side surface of the sealing cover 47 in communication; and an air suction pump is connected to the communication air pipe 48;

[0043] When the welding wire is embedded into the bottom end of the arc-shaped piece 45, the air extraction pump connected to the communication air pipe 48 is started to extract air from the sealing cover 47 connected to the communication air pipe 48, and the sealing cover 47 covers the air hole at the top end of the arc-shaped piece 45. When the welding wire is embedded into the bottom end of the arc-shaped piece 45, the surface of the welding wire will block the air hole, so that the air hole will be adsorbed to the surface of the welding wire as the sealing cover 47 is extracted. As the arc-shaped piece 45 moves, the adsorption of the air hole to the welding wire can improve the driving effect of the arc-shaped piece 45 on the welding wire.

[0044] The top end of the cushion block 3 is rotatably installed with a rotating belt 31. When the arc-shaped piece 45 drives the welding wire to move on the top end of the cushion block 3, the welding wire will fall onto the surface of the rotating belt 31 on the top end of the cushion block 3. As the welding wire is driven, the welding wire will drive the rotating belt 31 to rotate through friction, thereby avoiding the friction between the welding wire and the top end of the cushion block 3, reducing the friction resistance received by the welding wire, and being conducive to improving the driving effect of the welding wire. At the same time, the surface of the welding wire is prevented from being scraped off due to the action of the friction force, and the welding wire is further protected.

[0045] A pair of driving motors are fixedly connected to the two ends of the cushion block 3. The output end of the driving motor is fixedly connected with a driving shaft 32, and the driving shaft 32 is inserted into the inside of the rotating belt 31. When the welding wire is driven to move, the driving motor is started to drive the driving shaft 32 to rotate, and the driving shaft 32 drives the rotating belt 31 to rotate through the friction between them. In addition, the driving motor controls the rotating belt 31 to rotate and the movement of the pressing plate 43 to be kept synchronous through the driving shaft 32. Therefore, the rotating belt 31 will move synchronously with the welding wire, thereby further avoiding the friction between the welding wire and the rotating belt 31, further protecting the welding wire, and the surface of the driving shaft 32 is sleeved with a rubber sheet in a compressed state. The compressed rubber sheet can continuously drive the rotating belt 31 to rotate, so that the rotating belt 31 is continuously in a taut state when it is stretched and deformed, ensuring the use effect and improving the service life of the rotating belt 31.

[0046] A pair of vertical limiting rollers 5 are installed between the cushion block 3 and the supporting wheel 2. A pair of horizontal limiting rollers 51 are installed between the cushion block 3 and the supporting wheel 2 and on one side of the pair of vertical limiting rollers 5. When the welding wire is driven to move, the welding wire will pass between the pair of vertical limiting rollers 5 and the pair of horizontal limiting rollers 51. The pair of vertical limiting rollers 5 and the pair of horizontal limiting rollers 51 limit the horizontal position and vertical height of the welding wire respectively, so that the welding wire can accurately pass through the center line position of the top end of the cushion block 3, and the welding wire is embedded into the bottom end of the arc-shaped piece 45.

[0047] When working, the welding wire wound on the winding wheel 12 is guided out through the guide pipe 11, and the driving assembly in the housing 1 is used to pull the welding wire, so that the welding wire is separated from the housing 1, and in the process of pulling the welding wire, the welding wire is received by the side of the receiving wheel 2. The receiving wheel 2 is located on the side of the inner housing 1 away from the center line of the air cylinder 24, and the receiving wheel 2 deviates from the straight line direction of the winding wheel 12 and the guide pipe 11. Therefore, the welding wire will generate extrusion force on the side of the receiving wheel 2. When the receiving wheel 2 is extruded, the extrusion force is transmitted to the guide rod 22 through the slider 21 at the bottom end, and the air pressure plate 23 at the end of the guide rod 22 extrudes the air in the air cylinder 24. When the pulling force of the welding wire increases and reaches the standard of the welding wire breaking, the welding wire drives the receiving wheel 2, the slider 21 at the bottom end of the receiving wheel 2 slides in the rectangular groove 20, and slides to the direction of the air cylinder 24. It should be noted that the initial position of the slider 21 is located at the slot opening of the rectangular groove 20 away from the air cylinder 24. The position of the receiving wheel 2 is driven to move, and the tensioned welding wire is relaxed, so that the pulling force of the welding wire is reduced. At the same time, when the air pressure in the air cylinder 24 is too large, the air pressure is released through the relief valve 25 at the end of the air guide pipe 26. The air pressure in the air cylinder 24 is the same as the extrusion force of the guide rod 23 on the air pressure plate 23. Based on the principle that the action force and the reaction force are equal in size, the extrusion force of the slider 21 on the guide rod 22 is equal to the air pressure in the air cylinder 24. Therefore, the extrusion force of the welding wire on the side of the receiving wheel 2 is equal to the air pressure in the air cylinder 24. When the air pressure in the air cylinder 24 is greater than a certain size, the air pressure is automatically released through the relief valve 25. The air pump outside the air cylinder 24 continuously inflates the inside of the air cylinder 24. Therefore, it can be obtained that when the pulling force of the welding wire is stable, the inflation rate of the air pump to the air cylinder 24 is the same as the exhaust rate of the relief valve. When the pulling force of the welding wire increases and does not reach the standard of the welding wire breaking, the inflation rate of the air pump to the air cylinder 24 is less than the exhaust rate of the relief valve. The air pressure in the air cylinder 24 remains constant. The above process can avoid the situation that the extrusion force of the welding wire on the side of the receiving wheel 2 is too large, which leads to the breaking of the welding wire. The welding wire is protected, and the welding is prevented from being suspended due to the breaking of the welding wire, which affects the welding efficiency. It should be noted that when the slider 21 moves to the slot opening close to the air cylinder 24 in the rectangular groove 20, it will be clamped. However, in actual use, the pulling force of the welding wire will only increase during the initial pulling adjustment. And every time the welding wire is added, the staff will reset the slider 21. Therefore, the situation that the slider 21 is clamped does not exist in actual use. When the welding wire is driven to move, the welding wire will be located between the pad 3 and the pressure plate 43. Specifically, the second hydraulic cylinder 42 drives the pressure plate 43 to move downward, and the pressure plate 43 drives the arc-shaped piece 45 to cover and press on the surface of the welding wire, and extrudes the welding wire to the top end of the pad 3. The welding wire will be embedded in the bottom end of the arc-shaped piece 45. Then the first hydraulic cylinder 41 drives the second hydraulic cylinder 42 to move to the direction of the guide pipe 11, and the second hydraulic cylinder 42 drives the pressure plate 43 to move synchronously, and the pressure plate 43 drives the arc-shaped piece 45 to move synchronously. The arc-shaped piece 45 drives the welding wire to move on the top end of the pad 3 through the friction force between the arc-shaped piece 45 and the welding wire.Because the arc-shaped sheet 45 is in full contact with the welding wire, the extrusion area of the welding wire is increased, and the welding wire is not easily deformed when being extruded, thus ensuring the driving effect and avoiding excessive extrusion of the welding wire to cause large deformation and wire breakage; it should be noted that the welding wire will become flat when being excessively extruded, and the area of the part of the cross section will be reduced, thus reducing the tensile strength and causing the welding wire to be easily broken;

[0048] Wherein for different diameters of welding wire; the control hydraulic cylinder 46 can drive the two ends of the arc-shaped sheet 45 to move up and down, and the top end of the arc-shaped sheet 45 is limited by the fixed column 44, so that when the two ends of the arc-shaped sheet 45 move up and down, the arc of the arc-shaped sheet 45 is adjusted; thus the arc-shaped sheet 45 is adapted to welding wires of different diameters; the technical scheme of the present application improves the adaptation of the welding wire size; wherein when the welding wire is inserted into the bottom end of the arc-shaped sheet 45, the air pump connected to the communication air pipe 48 is started, the air pump is used to pump air from the sealed cover 47 connected to the communication air pipe 48, the sealed cover 47 covers the air hole at the top end of the arc-shaped sheet 45, and when the welding wire is inserted into the bottom end of the arc-shaped sheet 45, the surface of the welding wire will block the air hole, so that as the sealed cover 47 is pumped, the air hole will be adsorbed to the surface of the welding wire, and as the arc-shaped sheet 45 moves, the adsorption of the air hole to the welding wire can improve the driving effect of the arc-shaped sheet 45 on the welding wire; wherein when the arc-shaped sheet 45 drives the welding wire to move on the top end of the cushion block 3, the welding wire will fall onto the surface of the rotating belt 31 on the top end of the cushion block 3, and as the welding wire is driven, the welding wire will drive the rotating belt 31 to rotate through friction, thus avoiding the friction between the welding wire and the top end of the cushion block 3, reducing the frictional resistance of the welding wire, and being beneficial to improve the driving effect of the welding wire; at the same time, the surface of the welding wire is prevented from being scraped off due to the action of the frictional force; further protecting the welding wire; wherein when the welding wire is driven to move, the driving motor is started, the driving motor drives the driving shaft 32 to rotate, and the driving shaft 32 drives the rotating belt 31 to rotate through the friction between them; in addition, the driving motor controls the rotating belt 31 to rotate and the movement of the pressing plate 43 to be synchronous through the driving shaft 32; thus the rotating belt 31 will move synchronously with the welding wire, thus further avoiding the friction between the welding wire and the rotating belt 31; further protecting the welding wire; and the surface of the driving shaft 32 is sleeved with a layer of rubber sheet, and the rubber sheet is in a compressed state; the compressed rubber sheet can continuously drive the rotating belt 31 to rotate, so that the rotating belt 31 is continuously in a taut state when being stretched and deformed; ensuring the use effect; improving the service life of the rotating belt 31; wherein when the welding wire is driven to move, the welding wire will pass between a pair of vertical limiting rollers 5 and a pair of horizontal limiting rollers 51; the pair of vertical limiting rollers 5 and the pair of horizontal limiting rollers 51 limit the horizontal position and vertical height of the welding wire respectively; so that the welding wire accurately passes through the center line position of the top end of the cushion block 3, and the welding wire is inserted into the bottom end of the arc-shaped sheet 45.

[0049] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency automatic wire feeding welding device, characterized by: The invention comprises a shell, the end of which is connected to and fixedly connected with a delivery pipe; a reel is installed inside the shell, and a rectangular groove is formed on the inner bottom wall of the shell; a slider is slidably connected inside the rectangular groove, and a receiving wheel is slidably connected to the top end of the slider; The side of the slider is fixedly connected to a guide rod extending to the outside of the shell, and the side of the guide rod located outside the shell is fixedly connected to an air pressure plate; the outer side of the air pressure plate is slidably connected to an air cylinder, and the air cylinder is externally connected to an air pump; an air guide pipe is provided on the side of the air cylinder, and the end of the air guide pipe away from the air cylinder is connected and fixed to a pressure relief valve installed on the side of the shell; a drive assembly is installed between the outlet pipe and the receiving wheel; The drive assembly includes a pair of pads; the pads are fixed to the inner bottom wall of the housing; a bracket fixed to the inner wall of the housing is provided above the pads, the top of the bracket is fixed to a first hydraulic cylinder, the output end of the first hydraulic cylinder is fixed to a second hydraulic cylinder, and the output end of the second hydraulic cylinder is fixed to a pressure plate; The bottom end of the pressure plate is provided with a receiving groove; an arc-shaped piece is provided inside the receiving groove, and the arc surface of the bottom end of the arc-shaped piece is adapted to the welding wire to be used; a pair of fixing columns are fixed between the top end of the arc-shaped piece and the pressure plate; Two pairs of regulating hydraulic cylinders are fixedly connected to the top of the pressure plate based on central symmetry, and the output ends of the regulating hydraulic cylinders pass through the receiving groove and are connected to the top of the arc-shaped piece; The arc-shaped piece is made of rubber; a plurality of ventilation holes are opened at the bottom end of the arc-shaped piece; a sealing cover is fixedly connected to the top end of the arc-shaped piece and directly above the ventilation holes; a connecting air pipe is fixedly connected to the side of the sealing cover, and the connecting air pipe is externally connected to an air pump.

2. The high-efficiency automatic wire feeding welding device according to claim 1, characterized in that: A rotating belt is rotatably mounted on the top end of the cushion block.

3. The high-efficiency automatic wire feeding welding device according to claim 2, characterized in that: A pair of driving motors are fixedly connected to both ends of the cushion block; a driving shaft is fixedly connected to the output end of the driving motor, and the driving shaft is inserted into the interior of the rotating belt.

4. The high-efficiency automatic wire feeding welding device according to claim 3, characterized in that: A layer of rubber sheet is sleeved on the surface of the driving shaft, and the rubber sheet is in a compressed state.

5. The high-efficiency automatic wire feeding welding device according to claim 3, characterized in that: The driving motor controls the rotation of the rotating belt through the driving shaft to keep synchronization with the movement of the pressing plate.

6. The high-efficiency automatic wire feeding welding device according to claim 1, characterized in that: A pair of vertical limiting rollers are installed between the cushion block and the receiving wheel.

7. The high-efficiency automatic wire feeding welding device according to claim 6, characterized in that: A pair of horizontal limiting rollers are installed between the cushion block and the receiving wheel and on one side of the pair of vertical limiting rollers.

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