Efficient automatic wire feeding welding device

Abstract

The invention belongs to the technical field of welding, and particularly relates to an efficient automatic wire feeding welding device which comprises a shell, and the end of the shell communicates with and is fixedly connected with an eduction tube; a winding wheel is mounted in the shell, and a rectangular groove is formed in the inner bottom wall of the shell; the interior of the rectangular groove is slidably connected with a sliding block, and the top end of the sliding block is slidably connected with a bearing wheel; the side face of the sliding block is fixedly connected with a guide rod penetrating out of the shell, and the side, located outside the shell, of the guide rod is fixedly connected with an air pressure plate. According to the efficient automatic wire feeding welding device, the bearing wheel is arranged; when the welding wire is driven, the welding wire is borne through the side face of the bearing wheel; the position of the bearing wheel is moved, and the tightened welding wire is loosened; the traction force of the welding wire is reduced; the welding wire is protected; and the welding efficiency is prevented from being influenced by welding pause caused by welding wire breakage.

Description

Technical Field

[0001] The invention belongs to the technical field of welding, in particular to a high-efficiency automatic wire feeding welding device. Background Art

[0002] The automatic wire feeder is an automated wire feeding device that can continuously and stably feed the welding wire according to the set parameters under the control of a microcomputer. Wire feeding is a very important operation in the welding process. By using the automatic wire feeding method instead of the welder's fingers twisting the welding wire to complete the wire feeding process, the welding efficiency can be effectively improved and the welding wire cost can be saved. When the existing wire feeder is working, the welding wire is wound inside the wire feeder, and a pair of rotating drive wheels can drive the welding wire to detach from the winding wheel; in this process, the welding wire needs to maintain a certain tension to prevent the welding wire from becoming loose on the winding wheel and then crossing each other to form a knot; especially for welding wires with smaller diameters, such welding wires are used for welding electronic components and have a soft texture; to solve the above problems, the wire feeder will tighten the welding wire when in use, however, some welding wires have low strength and are prone to breakage after tightening; when the welding wire breaks, staff needs to handle it and suspend the welding process, affecting the welding efficiency.

[0003] To this end, the present invention provides a high-efficiency automatic wire feeding welding device. Summary of the invention

[0004] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0005] The technical solution adopted by the present invention to solve the technical problem is as follows: the high-efficiency automatic wire feeding welding device described in the present invention comprises a shell, the end of the shell is connected and fixedly connected with a guide pipe; a winding wheel is installed inside the shell, and a rectangular groove is opened 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 of the slider; A guide rod is fixedly connected to the side of the slider and passes through the outside of the shell, and an air pressure plate is fixedly connected to the side of the guide rod outside the shell; an air cylinder is slidably connected to the outer side of the air pressure plate, and an air pump is externally connected to the air cylinder; an air guide pipe is connected to the side of the air cylinder, and an 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.

[0006] Preferably, the driving assembly includes a pair of cushion blocks; the cushion blocks are fixedly connected to the inner bottom wall of the housing; a bracket fixedly connected to the inner wall of the housing is arranged above the cushion blocks, a first hydraulic cylinder is fixedly connected to the top end of the bracket, a second hydraulic cylinder is fixedly connected to the output end of the first hydraulic cylinder, and a pressure plate is fixedly connected to the output end of the second hydraulic cylinder; A receiving groove is provided at the bottom end of the pressing plate; an arc-shaped piece is arranged inside the receiving groove, and the arc surface at the bottom end of the arc-shaped piece is adapted to the welding wire to be used; a pair of fixing columns are fixedly connected between the top end of the arc-shaped piece and the pressing plate.

[0007] Preferably, 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 sheet.

[0008] Preferably, the arc-shaped sheet is made of rubber; a plurality of ventilation holes are opened at the bottom end of the arc-shaped sheet; a sealing cover is fixedly connected to the top end of the arc-shaped sheet 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.

[0009] Preferably, a rotating belt is rotatably mounted on the top end of the cushion block.

[0010] Preferably, 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.

[0011] Preferably, a layer of rubber sheet is sleeved on the surface of the driving shaft, and the rubber sheet is in a compressed state.

[0012] Preferably, the driving motor controls the rotation of the rotating belt through the driving shaft to keep synchronization with the movement of the pressure plate.

[0013] Preferably, a pair of vertical limiting rollers are installed between the cushion block and the receiving wheel.

[0014] 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.

[0015] The beneficial effects of the present invention are as follows: 1. The invention discloses a high-efficiency automatic wire feeding welding device, which is provided with a receiving wheel; the welding wire is received by the side of the receiving wheel when being driven, and when the welding wire is subjected to excessive pulling force, the receiving wheel moves to relax the taut welding wire, reduce the pulling force of the welding wire, protect the welding wire, and prevent the welding from being suspended due to wire breakage, thereby affecting the welding efficiency.

[0016] 2. The present invention describes an efficient automatic wire feeding welding device, which is configured such that when the welding wire is driven to move, the welding wire will be located between the pad and the pressure plate; specifically, the second hydraulic cylinder drives the pressure plate to move downward, and the pressure plate drives the arc piece to cover and press the surface of the welding wire, and squeeze the welding wire to the top of the pad; and the welding wire will be embedded in the bottom end of the arc piece; then the first hydraulic cylinder drives the second hydraulic cylinder to move toward the direction of the outlet pipe, and the second hydraulic cylinder drives the pressure plate to move synchronously, and the pressure plate drives the arc piece to move synchronously, and the arc piece drives the welding wire to move on the top of the pad through the friction between the arc piece and the welding wire; since the arc piece 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 by being squeezed, while ensuring the driving effect, it avoids the welding wire being locally squeezed excessively to produce a large deformation and cause wire breakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Figure 1 is a stereogram of the present invention; Figure 2 It is a schematic diagram of the internal structure of the housing of the present invention; Figure 3 is a schematic diagram of a housing of the present invention; Figure 4 is a schematic side view of the housing of the present invention; Figure 5 It is a schematic diagram of the guide rod connection structure of the present invention; Figure 6 is a schematic diagram of an air pressure plate of the present invention; Figure 7 is a schematic diagram of the support connection structure of the present invention; Figure 8 It is a schematic diagram of the connection structure of the pressing plate of the present invention; Fig. 9 is a schematic diagram of the end of the pressing plate of the present invention; Fig.10 It is a schematic diagram of the arc-shaped sheet connection structure of the present invention; Fig.11 It is a schematic diagram of an arc-shaped sheet of the present invention.

[0019] In the figure: 1. Shell; 11. Export pipe; 12. Winding wheel; 2. Receiver wheel; 20. Rectangular groove; 21. Slider; 22. Guide rod; 23. Air pressure plate; 24. Air cylinder; 25. Pressure relief valve; 26. Air guide pipe; 3. Pad; 31. Rotating belt; 32. Drive shaft; 4. Bracket; 41. First hydraulic cylinder; 42. Second hydraulic cylinder; 43. Pressing plate; 44. Fixed column; 45. Arc sheet; 46. Control hydraulic cylinder; 47. Sealing cover; 48. Connecting air pipe; 5. Vertical limit roller; 51. Horizontal limit roller. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0021] like Figures 1 to 11 As shown, a high-efficiency automatic wire feeding welding device according to an embodiment of the present invention comprises a housing 1, the end of the housing 1 is connected and fixedly connected with a guide tube 11; a winding wheel 12 is installed inside the housing 1, and a rectangular groove 20 is opened on the inner bottom wall of the housing 1; a slider 21 is slidably connected inside the rectangular groove 20, and a receiving wheel 2 is slidably connected to the top of the slider 21; A guide rod 22 penetrating to the outside of the housing 1 is fixedly connected to the side of the slider 21, and a pressure plate 23 is fixedly connected to the side of the guide rod 22 located outside the housing 1; an air cylinder 24 is slidably connected to the outside of the air pressure plate 23, and an air pump is externally connected to the air cylinder 24; an air guide pipe 26 is connected to the side of the air cylinder 24, and one end of the air guide pipe 26 away from the air cylinder 24 is connected and fixed to a pressure relief valve 25 installed on the side of the housing 1; a driving component is installed between the outlet pipe 11 and the receiving wheel 2; During the welding process, for welding wires with lower strength, it is easy to break after being tightened. When the welding wire breaks, the staff needs to handle it, suspend the welding process, and affect the welding efficiency. To solve the above problems, the embodiment of the present invention provides a receiving wheel 2 and other structures, and the specific use process is as follows; when in use, the welding wire wound on the winding wheel 12 is led out through the outlet tube 11; and the driving component 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 the welding wire being pulled; the welding wire is received by the side of the receiving wheel 2; the receiving wheel 2 is located on the side of the center line of the inner shell 1 away from the position of the gas cylinder 24, and the receiving wheel 2 deviates from the straight line direction between the winding wheel 12 and the outlet tube 11; therefore, the welding wire will be The side of the receiving wheel 2 generates an extrusion pressure; when the receiving wheel 2 is subjected to the extrusion pressure, the extrusion pressure will be transmitted to the guide rod 22 through the slider 21 at the bottom, and the air pressure plate 23 at the end of the guide rod 22 squeezes the air in the gas cylinder 24; when the pulling force on the welding wire increases and reaches the welding wire breakage standard; the welding wire drives the receiving wheel 2; the slider 21 at the bottom of the receiving wheel 2 slides in the rectangular groove 20; and slides in the direction of the gas cylinder 24; it should be pointed out that the initial position of the slider 21 is located at the notch of the rectangular groove 20 away from the gas cylinder 24; it drives the receiving wheel 2 to move, relaxes the taut welding wire, and reduces the pulling force of the welding wire; at the same time, when the air pressure in the gas cylinder 24 is too large, it will pass through the air guide pipe 26 The pressure relief valve 25 at the end releases pressure; the specific 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 magnitude, 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 between the welding wire and 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 value, the pressure is automatically released through the pressure 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; when the pulling force on 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 pressure relief valve; when the pulling force on the welding wire increases and does not reach the welding wire When the wire breaks, the air pump's inflation rate for the air cylinder 24 is less than the pressure relief valve's exhaust rate, so that the gas pressure in the air cylinder 24 remains constant. The above process can prevent the welding wire from breaking due to excessive squeezing pressure on the side of the receiving wheel 2, thereby protecting the welding wire and preventing welding from being suspended due to wire breakage, thereby affecting welding efficiency. It should be noted that the slider 21 will be stuck when it moves in the rectangular groove 20 to the notch close to the air cylinder 24. However, in actual use, the pulling force of the welding wire will only increase during the initial pulling and debugging. And each time welding wire is added, the staff will return the slider 21 to its original position. Therefore, the slider 21 will not be stuck in actual use.

[0022] The driving assembly includes a pair of cushion blocks 3; the cushion blocks 3 are fixedly connected to the inner bottom wall of the housing 1; a bracket 4 is provided above the cushion blocks 3 and is fixedly connected to the inner wall of the housing 1; a first hydraulic cylinder 41 is fixedly connected to the top of the bracket 4; a second hydraulic cylinder 42 is fixedly connected to the output end of the first hydraulic cylinder 41; a pressure plate 43 is fixedly connected to the output end of the second hydraulic cylinder 42; A receiving groove is provided at the bottom end of the pressing plate 43; an arc-shaped piece 45 is provided inside the receiving groove, and the arc surface at the bottom end of the arc-shaped piece 45 is adapted to the welding wire to be used; a pair of fixing columns 44 are fixedly connected between the top end of the arc-shaped piece 45 and the pressing plate 43; When driving the welding wire 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 piece 45 to cover and press the surface of the welding wire, and squeeze the welding wire to the top of the pad 3; and the welding wire will be embedded in the bottom end of the arc piece 45; then the first hydraulic cylinder 41 drives the second hydraulic cylinder 42 to move toward the direction of the outlet pipe 11, and the second hydraulic cylinder 42 drives the pressure plate 43 to move synchronously, and the pressure plate 43 drives the arc piece 45 to move synchronously, and the arc piece 45 is brought into contact with the welding wire through the friction between the arc piece 45 and the welding wire. The movable welding wire moves at the top of the pad 3; since the arc-shaped piece 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 by being squeezed, while ensuring the driving effect, it avoids the welding wire being excessively squeezed locally to produce a large deformation and cause wire breakage; it should be pointed out that when the welding wire is excessively squeezed locally, it will become flat, and the area of ​​the cross-section of this part will be reduced, thereby reducing the tensile strength and causing easy wire breakage; it should be pointed out that the arc-shaped piece 45 above the movable pad 3 alternately drives the welding wire to move, so that the welding wire is stably and continuously driven.

[0023] Two pairs of regulating hydraulic cylinders 46 are fixedly connected to the top of the pressure plate 43 based on central symmetry, and the output ends of the regulating hydraulic cylinders 46 pass through the receiving groove and are connected to the top of the arc piece 45; for welding wires of different diameters; the regulating hydraulic cylinders 46 can drive the two ends of the arc piece 45 to move up and down, and the top of the arc piece 45 is limited by the fixed column 44, so when the two ends of the arc piece 45 move up and down, the curvature of the arc piece 45 is adjusted; thereby making the arc piece 45 adaptable to welding wires of different diameters; improving the adaptability of the technical solution in the present invention to the types of welding wire sizes.

[0024] The arc-shaped sheet 45 is made of rubber; a plurality of vent holes are formed at the bottom of the arc-shaped sheet 45; a sealing cover 47 is fixedly connected to the top of the arc-shaped sheet 45 and located directly above the vent holes; a connecting air pipe 48 is connected to the side of the sealing cover 47, and an air pump is externally connected to the connecting air pipe 48; When the welding wire is embedded into the bottom end of the arc piece 45, the vacuum pump connected to the connecting air pipe 48 is started, and the vacuum pump evacuates the sealing cover 47 connected to the connecting air pipe 48. The sealing cover 47 covers the vent hole at the top of the arc piece 45, and when the welding wire is embedded into the bottom end of the arc piece 45, the vent hole is blocked by the surface of the welding wire. Therefore, as the sealing cover 47 is evacuated, the vent hole is adsorbed on the surface of the welding wire. As the arc piece 45 moves, the adsorption of the vent hole on the welding wire can improve the driving effect of the arc piece 45 on the welding wire.

[0025] A rotating belt 31 is rotatably installed at the top of the pad 3; when the arc-shaped piece 45 drives the welding wire to move at the top of the pad 3, the welding wire will fall into the surface of the rotating belt 31 at the top of the pad 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 of the pad 3, reducing the friction resistance of the welding wire, and helping to improve the driving effect of the welding wire; at the same time, it prevents part of the welding wire surface from being scraped off due to the friction, and further protects the welding wire.

[0026] A pair of driving motors are fixedly connected to the two ends of the pad 3; a driving shaft 32 is fixedly connected to the output end of the driving motor, and the driving shaft 32 is inserted into the interior of the rotating belt 31; when the driving welding wire is moved, the driving motor is started, and 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 the driving motor and the rotating belt 31; in addition, the driving motor controls the rotation of the rotating belt 31 through the driving shaft 32 to keep it synchronized with the movement of the pressure plate 43; therefore, the rotating belt 31 will synchronize the movement of the welding wire, thereby further avoiding the friction between the welding wire and the rotating belt 31, and further protecting the welding wire; and a layer of rubber sheet is sleeved on the surface of the driving shaft 32, 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 it is stretched and deformed, ensuring the use effect; and improving the service life of the rotating belt 31.

[0027] A pair of vertical limiting rollers 5 are installed between the pad 3 and the receiving wheel 2; a pair of horizontal limiting rollers 51 are installed between the pad 3 and the receiving 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 of the pad 3, ensuring that the welding wire is embedded in the bottom end of the arc piece 45.

[0028] During operation, the welding wire wound on the winding wheel 12 is led out through the outlet tube 11; and the driving component 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 the welding wire being pulled; the welding wire is received by the side of the receiving wheel 2; the receiving wheel 2 is located on the side of the center line of the inner shell 1 away from the position of the gas cylinder 24, and the receiving wheel 2 deviates from the straight line direction between the winding wheel 12 and the outlet tube 11; therefore, the welding wire will generate an extrusion force on the side of the receiving wheel 2; when the receiving wheel 2 is subjected to the extrusion force, the extrusion force will be transmitted to the guide rod 22 through the slider 21 at the bottom, and the air pressure plate 23 at the end of the guide rod 22 squeezes the air in the gas cylinder 24; when the pulling force on the welding wire increases and reaches the welding wire breakage standard; the welding wire drives the receiving wheel 2; the slider 21 at the bottom end of the receiving wheel 2 is in the rectangular The slider 21 slides in the groove 20 and slides in the direction of the gas cylinder 24. It should be pointed out that the initial position of the slider 21 is located at the notch of the rectangular groove 20 away from the gas cylinder 24. It drives the receiving wheel 2 to move, relaxes the taut welding wire, and reduces the pulling force of the welding wire. At the same time, when the air pressure in the gas cylinder 24 is too large, the pressure will be released through the pressure relief valve 25 at the end of the air guide pipe 26. The specific air pressure in the gas 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 magnitude, the extrusion force of the slider 21 on the guide rod 22 is equal to the air pressure in the gas cylinder 24. Therefore, the extrusion force between the welding wire and the side of the receiving wheel 2 is equal to the air pressure in the gas cylinder 24. When the air pressure in the gas cylinder 24 is greater than a certain size, the pressure is automatically released through the pressure relief valve 25. The air pump connected to the air cylinder 24 continuously inflates the inside of the air cylinder 24; therefore, it can be obtained that; when the pulling force on 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 pressure relief valve; when the pulling force on the welding wire increases and does not reach the welding wire breakage standard; the inflation rate of the air pump to the air cylinder 24 is less than the exhaust rate of the pressure relief valve; so that the gas pressure in the air cylinder 24 remains constant; the above process can avoid the excessive squeezing force of the welding wire on the side of the receiving wheel 2, resulting in the breakage of the welding wire; protect the welding wire; prevent the welding from being suspended due to the breakage of the welding wire, affecting the welding efficiency; it should be pointed out that when the slider 21 moves to the notch close to the air cylinder 24 in the rectangular groove 20, it will be stuck. However, in actual use, the welding wire will only be stuck during the initial pulling and debugging. The pulling force increases; and each time the welding wire is added, the staff will return the slider 21 to its original position; therefore, the slider 21 will not be stuck in actual use; when the welding wire is driven to move, the welding wire will be 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 piece 45 to cover and press the surface of the welding wire, and squeeze the welding wire to the top of the pad 3; and the welding wire will be embedded in the bottom end of the arc piece 45; then the first hydraulic cylinder 41 drives the second hydraulic cylinder 42 to move toward the direction of the outlet pipe 11, and the second hydraulic cylinder 42 drives the pressure plate 43 to move synchronously, and the pressure plate 43 drives the arc piece 45 to move synchronously, and the arc piece 45 drives the welding wire to move on the top of the pad 3 through the friction between the arc 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, and the welding wire is not easily deformed by being extruded, while ensuring the driving effect, it is prevented that the welding wire is partially extruded to produce a large deformation and cause wire breakage; it should be pointed out that when the welding wire is partially extruded excessively, it will become flat, and the area of ​​the cross-section of this part will be reduced, thereby reducing the tensile strength and causing easy wire breakage; For welding wires of different diameters, the regulating hydraulic cylinder 46 can drive the two ends of the arc piece 45 to move up and down, and the top of the arc piece 45 is limited by the fixed column 44. Therefore, when the two ends of the arc piece 45 move up and down, the curvature of the arc piece 45 is adjusted; thereby making the arc piece 45 adaptable to welding wires of different diameters; improving the adaptability of the technical solution of the present invention to the types of welding wire sizes; when the welding wire is embedded in the bottom end of the arc piece 45, the vacuum pump connected to the connecting air pipe 48 is started, and the vacuum pump exhausts the sealing cover 47 connected to the connecting air pipe 48, and the sealing cover 47 covers the ventilation hole at the top of the arc piece 45. , and when the welding wire is embedded in the bottom end of the arc piece 45, the surface of the welding wire blocks the vent, so as the sealing cover 47 is evacuated, the vent is adsorbed on the surface of the welding wire, and as the arc piece 45 moves, the adsorption of the vent on the welding wire can improve the driving effect of the arc piece 45 on the welding wire; wherein when the arc piece 45 drives the welding wire to move on the top of the cushion block 3, the welding wire will fall onto the surface of the rotating belt 31 at the top 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, thereby avoiding the friction between the welding wire and the top of the cushion block 3, reducing the friction resistance of the welding wire, and having It is beneficial to improve the driving effect of the welding wire; at the same time, it prevents the surface of the welding wire from being scraped off due to the friction force; further protects the welding wire; when driving the welding wire to move, the driving motor is started, and 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 the driving shaft 32 and the rotating belt 31; in addition, the driving motor controls the rotation of the rotating belt 31 through the driving shaft 32 to keep it synchronized with the movement of the pressure plate 43; therefore, the rotating belt 31 will synchronize the movement of the welding wire, thereby further avoiding the friction between the welding wire and the rotating belt 31; further protecting the welding wire; and the driving shaft 3 2 is sleeved with a layer of rubber sheet, which 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; ensure the use effect; and improve the service life of the rotating belt 31; when driving the welding wire 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 respectively limit the horizontal position and vertical height of the welding wire; so that the welding wire accurately passes through the center line position of the top end of the cushion block 3, ensuring that the welding wire is embedded in the bottom end of the arc sheet 45.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A high-efficiency automatic wire feeding welding device, characterized in that: It comprises a shell, the end of which is connected to and fixedly connected with a guide tube; a winding wheel is installed inside the shell, and a rectangular groove is opened 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 of the slider; A guide rod is fixedly connected to the side of the slider and passes through the outside of the shell, and an air pressure plate is fixedly connected to the side of the guide rod outside the shell; an air cylinder is slidably connected to the outer side of the air pressure plate, and an air pump is externally connected to the air cylinder; an air guide pipe is connected to the side of the air cylinder, and an 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.

2. A high-efficiency automatic wire feeding welding device according to claim, characterized in that: The driving assembly includes a pair of cushion blocks; the cushion blocks are fixedly connected to the inner bottom wall of the housing; a bracket fixedly connected to the inner wall of the housing is arranged above the cushion blocks, a first hydraulic cylinder is fixedly connected to the top of the bracket, a second hydraulic cylinder is fixedly connected to the output end of the first hydraulic cylinder, and a pressure plate is fixedly connected to the output end of the second hydraulic cylinder; A receiving groove is provided at the bottom end of the pressing plate; an arc-shaped piece is arranged inside the receiving groove, and the arc surface at the bottom end of the arc-shaped piece is adapted to the welding wire to be used; a pair of fixing columns are fixedly connected between the top end of the arc-shaped piece and the pressing plate.

3. The high-efficiency automatic wire feeding welding device according to claim 1, characterized in that: 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 sheet.

4. The high-efficiency automatic wire feeding welding device according to claim 1, characterized in that: The arc-shaped sheet is made of rubber; a plurality of ventilation holes are opened at the bottom end of the arc-shaped sheet; a sealing cover is fixedly connected to the top end of the arc-shaped sheet and directly above the ventilation holes; a connecting air pipe is fixedly connected to the side of the sealing cover; and an air pump is externally connected to the connecting air pipe.

5. 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.

6. The high-efficiency automatic wire feeding welding device according to claim 1, characterized in that: 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 interior of the rotating belt.

7. The high-efficiency automatic wire feeding welding device according to claim 1, 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.

8. The high-efficiency automatic wire feeding welding device according to claim 1, 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.

9. 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.

10. The high-efficiency automatic wire feeding welding device according to claim 1, 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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