Anti-collision precise wire feeding device

Abstract

The utility model discloses an anti-collision accurate wire feeding device, relates to the welding technical field, the wire feeding device comprises a case and a wire feeding pipe, the wire feeding pipe is installed on one side of the case, a clamping device is installed in the case, a pressing device is installed on one side of the clamping device, an anti-collision device is installed on one side of the case, and the anti-collision device is installed on the other side of the case. And a wire feeding rod is mounted on one side of the anti-collision device. The pressing wheels are driven by the pressing device to move up and down, the distance between the two pressing wheels is adjusted, welding wires with different thicknesses are adapted, the welding wires are straightened and tensioned, the blocking phenomenon is avoided, the anti-collision device can monitor whether the wire feeding rod collides or not in real time, the buffering protection effect is provided when collision occurs, and the welding wire feeding device is suitable for welding wires with different thicknesses. And the control system takes measures to suspend the wire feeding action, so that the efficiency of welding operation is improved, and the stability and reliability of the whole welding process are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to an anti-collision precision wire feeding device. Background Art

[0002] Wire feeding is a very important operation in the welding process. The wire feeding method of manual argon arc welding mostly uses the welder's fingers to twist the wire to complete the wire feeding process. It is very inconvenient for the welder to operate the wire feeding. Therefore, manual wire feeding has poor accuracy, poor consistency, and unstable wire feeding, which leads to low welding production efficiency and poor welding forming consistency. In addition, the length of the welding wire held by the welder is limited, and the welding wire needs to be frequently taken out during long-term welding, which reduces the welding efficiency. After each section of welding is completed, a small section of welding wire will remain and cannot be used, resulting in waste. Automatic wire feeders generally have a control part that provides parameter settings, the drive part drives the wire feeding under the control of the control part, and the wire feeding nozzle part sends the welding wire to the welding gun position.

[0003] The prior art CN115365602A discloses a welding wire feeding device, and the technical solution discloses that "the present invention relates to the technical field of wire feeders, in particular to a welding wire feeding device; it can realize the self-stop of the welding wire reel shaft in the wire broken state, avoid the welding wire from being scattered and loose, and ensure the continuous tension and relaxation supply of the welding wire; it includes a wire feeding mechanism and an anti-loose wire release mechanism for the welding wire, the anti-loose wire release mechanism includes a mounting frame, a welding wire reel shaft and a broken wire brake assembly; the welding wire reel shaft can be rotatably mounted on the mounting frame, and the broken wire brake assembly includes a bracket, a pull rod, a cross bar, a first covering belt and a tension spring, the bracket is fixedly mounted on the mounting frame, the cross bar is hingedly mounted on the bracket, the first covering belt covers the welding wire reel shaft, one end of the first covering belt is fixedly connected to the mounting frame, and the other end of the first covering belt is connected to the bottom of the pull rod, the cross bar is hinged to the pull rod, two sets of guide wheels are rotatably mounted on the cross bar, and the cross bar is connected to the mounting frame through a first spring; the height of the wire feeding mechanism is higher than the height of the cross bar".

[0004] Although the prior art has disclosed a welding wire feeding device, there are still some shortcomings. Specifically, the wire feeding device lacks a compacting structure, and the welding wire in the device is in a loose state, which may cause blockage when the welding wire enters the wire feeding rod. In addition, the wire feeding device lacks corresponding anti-collision measures, and collisions may occur during the wire feeding process, resulting in loss of welding wire and welding gun. Utility Model Content

[0005] The purpose of the utility model is to provide an anti-collision precision wire feeding device to solve the problems raised in the prior art.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: the wire feeding device includes a chassis and a wire feed tube, the wire feed tube is fixed to one side of the chassis, a clamping device is installed in the chassis, a pressing device is installed on one side of the clamping device, an anti-collision device is installed on one side of the chassis, and a wire feed rod is installed on one side of the anti-collision device; the welding wire enters the wire feed tube, passes through the clamping device, the pressing device and the anti-collision device, and extends from the wire feed rod. The wire feed tube is used to feed the welding wire into the device for processing, the clamping device and the pressing device can effectively straighten and tension the welding wire, avoiding blockage caused by bending or entanglement, and the anti-collision device provides a buffer for the entire device, and can monitor and determine in real time whether the welding gun and the workpiece collide. When a collision risk is detected between the welding gun and the workpiece, the system will take measures to suspend the wire feeding action.

[0007] The clamping device includes a first and second wire clamp, each mounted on either side of the inner wall of the chassis. A welding wire is positioned on one side of the first wire clamp, and a glass baffle and cover are mounted on the outer side of the chassis. The first and second wire clamps secure the welding wire entering the chassis, facilitating compression by the clamping device. The glass baffle provides protection for the chassis, allowing operators to observe the workings of the clamping and pressing devices in real time through the glass baffle, making it easy to identify any problems.

[0008] An air inlet pipe is installed on one side of the chassis and is connected to the wire feed rod through a pipe. Inert gas is input into the air inlet pipe to provide protection for the device during the welding process and ensure the safety of the operator.

[0009] The clamping device includes a cylinder and a servo motor. The cylinder is mounted on the inner wall of the chassis. A movable shaft is mounted on the cylinder. A spring 1 is sleeved on the movable shaft. A U-shaped plate is mounted on the movable shaft. A rotating shaft is mounted on one side of the U-shaped plate. The rotating shaft is mounted on the inner wall of the chassis. The rotating shaft is rotatably connected to the U-shaped plate. A pressure wheel 1 is mounted on the inside of the U-shaped plate. A pressure wheel 2 is mounted above the pressure wheel 1. A servo motor is mounted on one side of the pressure wheel 2. The servo motor is fixed to the inner wall of the chassis. The cylinder provides power for the movable shaft and cooperates with the spring 1 to drive the movable shaft up and down. The U-shaped plate is used to fix the pressure wheel 1. The movable shaft can drive the pressure wheel 1 to move up and down, thereby adjusting the distance between the pressure wheel 1 and the pressure wheel 2 to accommodate welding wires of different thicknesses. The servo motor drives the pressure wheel 2 to rotate, thereby realizing the feeding and discharging of the welding wire.

[0010] The anti-collision device is mounted on one side of the second wire clamp and includes a fixed plate connected to the second wire clamp. A connecting shaft is mounted on one end of the fixed plate, and a second spring is sleeved on the connecting shaft. A moving block is mounted on one side of the second spring, and a support column is mounted on one side of the moving block. A sleeve is sleeved on the support column, and the sleeve is connected to the wire feed rod. The fixed plate and support column provide support for the entire anti-collision device, ensuring its stability. The second spring provides the entire device with a certain degree of elasticity and buffering capacity, and the sleeve provides protection for the anti-collision device.

[0011] A T-shaped slot is provided on one side of the chassis, the T-shaped slot is located on the inner side of the cover plate, a micro switch is installed on one side of the T-shaped slot, a slider is installed on one side of the micro switch, the slider is connected to the moving block, and the slider is slidably installed in the T-shaped slot.

[0012] The centers of the wire feed tube, wire clamp 1, wire clamp 2, fixed plate, connecting shaft, moving block, support column and sleeve are located on the same straight line, ensuring smooth and stable wire feeding and feeding processes of the wire feeding device.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. This utility model uses the telescopic movement of the cylinder to drive the pinch rollers up and down, allowing the spacing between the two pinch rollers to be adjusted to accommodate welding wires of varying thicknesses. When the wire enters the wire gripper, adjusting the spacing between the pinch rollers effectively straightens and tightens the wire, ensuring smooth entry of the wire into the wire feed rod and preventing blockages caused by bending or tangling. This design improves welding efficiency, ensures smooth passage of the wire through the wire feed rod, and enhances the stability and reliability of the entire welding process.

[0015] 2. This utility model incorporates a collision sensor on the chassis surface. This sensor monitors and determines in real time whether the welding torch and workpiece have collided. If the sensor detects a collision risk, the system suspends wire feeding. This device effectively prevents physical collisions between the welding torch and the workpiece, thereby protecting the integrity of the welding wire and reducing damage to the wire caused by collisions. This significantly reduces scrap rates and improves the overall quality and efficiency of welding operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a front view of the utility model;

[0018] Figure 3 This is the internal structure diagram of the utility model;

[0019] Figure 4 This is a top view of the internal structure of the utility model;

[0020] Figure 5 This is a three-dimensional diagram of the compacting device of the utility model;

[0021] Figure 6 This is a structural diagram of the inner side of the cover plate of the present invention.

[0022] Figure: 1. Chassis; 2. Welding wire; 3. Wire feed tube; 4. Glass baffle; 5. Cover plate; 6. Sleeve; 7. Wire feed rod; 8. Air inlet pipe; 9. Wire clamp 1; 10. Wire clamp 2; 11. U-shaped plate; 12. Rotating shaft; 13. Pinch roller 1; 14. Pinch roller 2; 15. Servo motor; 16. Cylinder; 17. Moving shaft; 18. Spring 1; 19. Fixed plate; 20. Connecting shaft; 21. Spring 2.

[0023] 22. Moving block; 23. Support column; 24. Slider; 25. Micro switch. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figures 1-6 The utility model provides a technical solution: the wire feeding device includes a chassis 1 and a wire feed tube 3, the wire feed tube 3 is connected to one side of the chassis 1, a clamping device is installed in the chassis 1, a pressing device is installed on one side of the clamping device, an anti-collision device is installed on one side of the chassis 1, and a wire feeding rod 7 is installed on one side of the anti-collision device; the welding wire 2 enters from the wire feed tube 3, passes through the clamping device, the pressing device and the anti-collision device, and extends from the wire feeding rod 7. The wire feed tube 3 is used to feed the welding wire 2 into the device for processing. The clamping device and the pressing device can effectively straighten and tension the welding wire 2, avoiding blockage caused by bending or entanglement. The function of the anti-collision device is to provide a buffer for the entire device, and can monitor and determine in real time whether the welding gun and the workpiece collide. When a collision risk is detected between the welding gun and the workpiece, the system will take measures to suspend the wire feeding action.

[0026] The clamping device includes a wire clamp 1 9 and a wire clamp 2 10. A welding wire 2 is provided on one side of the wire clamp 1 9. The wire clamp 1 9 and the wire clamp 2 10 are respectively mounted on both sides of the inner wall of the chassis 1. A glass baffle 4 is mounted on the outer side of the chassis 1. A cover plate 5 is mounted on the outer side of the chassis 1. An air inlet pipe 8 is mounted on one side of the chassis 1. The air inlet pipe 8 is connected to the wire feed rod 7 through a pipe. The wire clamp 1 9 and the wire clamp 2 10 fix the welding wire 2 entering the chassis 1, making it easier for the clamping device to clamp the welding wire 2. The glass baffle 4 provides protection for the chassis 1. The operator can observe the working process of the wire clamp and the clamping device in real time through the glass baffle 4, making it convenient to find any problems in a timely manner. Inert gas is input into the air inlet pipe 8 to provide protection for the device during the welding process, ensuring the safety of the operator.

[0027] The clamping device includes a cylinder 16 and a servo motor 15. The cylinder 16 is installed on the inner wall of the chassis 1. A movable shaft 17 is installed on the cylinder 16. A spring 18 is sleeved on the movable shaft 17. A U-shaped plate 11 is installed on the movable shaft 17. A rotating shaft 12 is installed on one side of the U-shaped plate 11. The rotating shaft 12 is installed on the inner wall of the chassis 1. The rotating shaft 12 is rotatably connected to the U-shaped plate 11. A clamping wheel 13 is installed on the inside of the U-shaped plate 11. A clamping wheel 2 14 is installed above the clamping wheel 13. A servo motor 15 is installed on one side of the clamping wheel 2 14. The servo motor 15 is fixed to the inner wall of the chassis 1. The cylinder 16 provides power for the movable shaft 17, and cooperates with the spring 18 to drive the movable shaft 17 to move up and down. The U-shaped plate 11 is used to fix the pressure wheel 13. The movable shaft 17 can drive the pressure wheel 13 to move up and down, thereby adjusting the distance between the pressure wheel 13 and the pressure wheel 2 14 to adapt to welding wires 2 of different thicknesses. The servo motor 15 drives the pressure wheel 2 14 to rotate, thereby realizing the feeding and discharging of the welding wire 2.

[0028] The anti-collision device is installed on one side of the wire clamp 2 10. The anti-collision device includes a fixed plate 19, which is connected to the wire clamp 2 10. A connecting shaft 20 is installed at one end of the fixed plate 19, and a spring 21 is sleeved on the connecting shaft 20. A moving block 22 is installed on one side of the spring 21, and a support column 23 is installed on one side of the moving block 22. A sleeve 6 is sleeved on the support column 23, and the sleeve 6 is connected to the wire feeding rod 7. The fixed plate 19 and the support column 23 provide support for the entire anti-collision device, ensuring the stability of the device. The spring 21 gives the entire device a certain elasticity and buffering capacity, and the sleeve 6 provides protection for the anti-collision device.

[0029] A T-shaped slot is provided on one side of the chassis 1, and the T-shaped slot is located on the inner side of the cover plate 5. A micro switch 25 is installed on one side of the T-shaped slot, and a slider 24 is installed on one side of the micro switch 25. The micro switch 25 is electrically connected to the servo motor 15, and the slider 24 is connected to the moving block 22. The slider 24 is slidably installed in the T-shaped slot, and the centers of the wire feeding tube 3, wire clamp 1 9, wire clamp 2 10, fixed plate 19, connecting shaft 20, moving block 22, support column 23 and sleeve 6 are located on the same straight line, ensuring that the wire feeding and feeding processes of the wire feeding device are smooth and stable. After detecting that the device has collided, the micro switch 25 provides a signal to the control system, and the control system controls the servo motor 15 to stop running, reducing the damage to the welding wire 2 caused by the collision, significantly reducing the scrap rate, and improving the overall quality and efficiency of the welding operation.

[0030] The working principle of the utility model is as follows: during the operation of the wire feeding device, one end of the welding wire 2 is first placed in the wire feeding tube 3, and the external gas feeding device conveys inert gas into the air inlet pipe 8, and the inert gas is conveyed to the wire feeding rod 7 through the pipeline to be filled with protective gas. The control system controls the cylinder 16 to start running, driving the moving shaft 17 to move upward, and the other end of the U-shaped plate 11 is installed on the rotating shaft 12. The moving shaft 17 drives the U-shaped plate 11 to rotate counterclockwise along the rotating shaft 12, and the U-shaped plate 11 drives the pressing wheel 13 upward. Move, the pinch wheel 13 cooperates with the pinch wheel 2 14 to pinch the welding wire 2, the control system controls the servo motor 15 to operate, the servo motor 15 drives the pinch wheel 2 14 to rotate, pinches the welding wire 2 and transports it to the wire clamp 2 10, the wire clamp 1 9 and the wire clamp 2 10 straighten the welding wire 2, the design improves the efficiency of the welding operation, ensures that the welding wire 2 can smoothly pass through the wire feeding rod 7, the welding wire 2 passes through the fixed plate 19, the connecting shaft 20, the moving block 22, the support column 23 and the sleeve 6, and finally comes out from the wire feeding rod 7.

[0031] After the device is hit by a collision, the wire feeding rod 7 is squeezed, and the wire feeding rod 7 drives the support column 23 to move, and the support column 23 drives the moving block 22 to move. The moving block 22 compresses the spring 21 to provide a buffering effect for the impact, and the moving block 22 drives the slider 24 to move, so that the micro switch 25 is opened, and the micro switch 25 sends a signal to the control system. The control system controls the servo motor 15 to stop running, and the device stops feeding and feeding the wire, thereby protecting the integrity of the welding wire 2, reducing the damage to the welding wire 2 caused by the collision, significantly reducing the scrap rate, and improving the overall quality and efficiency of the welding operation.

[0032] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A collision-proof precision wire feeding device, characterized by: The wire feeding device comprises a chassis (1) and a wire feeding tube (3), the wire feeding tube (3) being fixed to one side of the chassis (1), a clamping device being installed in the chassis (1), a pressing device being installed on one side of the clamping device, an anti-collision device being installed on one side of the chassis (1), and a wire feeding rod (7) being installed on one side of the anti-collision device; the welding wire (2) enters from the wire feeding tube (3), passes through the clamping device, the pressing device and the anti-collision device, and extends from the wire feeding rod (7).

2. The anti-collision precision wire feeding device according to claim 1, characterized in that: The clamping device comprises a first wire clamp (9) and a second wire clamp (10), wherein the first wire clamp (9) and the second wire clamp (10) are respectively mounted on both sides of the inner wall of the chassis (1), and a glass baffle (4) and a cover plate (5) are mounted on one end face of the chassis (1).

3. The anti-collision precision wire feeding device according to claim 2, characterized in that: An air intake pipe (8) is installed on one side of the chassis (1), and the air intake pipe (8) is connected to the screw feed rod (7) through a pipeline.

4. The anti-collision precision wire feeding device according to claim 3, characterized in that: The clamping device includes a cylinder (16) and a servo motor (15), wherein the cylinder (16) is mounted on the inner wall of the chassis (1), a movable shaft (17) is mounted on the cylinder (16), a spring (18) is sleeved on the movable shaft (17), a U-shaped plate (11) is mounted on one side of the U-shaped plate (11), the rotating shaft (12) is mounted on the inner wall of the chassis (1), the rotating shaft (12) is rotatably connected to the U-shaped plate (11), a clamping wheel (13) is mounted on the inner side of the U-shaped plate (11), a clamping wheel (14) is mounted above the clamping wheel (13), a servo motor (15) is mounted on one side of the clamping wheel (14), and the servo motor (15) is fixed to the inner wall of the chassis (1).

5. The anti-collision precision wire feeding device according to claim 4, characterized in that: The anti-collision device is located on one side of the wire clamp 2 (10), and the anti-collision device includes a fixed plate (19), the fixed plate (19) is connected to the chassis (1), a connecting shaft (20) is installed at one end of the fixed plate (19), a spring 2 (21) is sleeved on the connecting shaft (20), a moving block (22) is installed on one side of the spring 2 (21), a support column (23) is installed on one side of the chassis (1), the support column (23) is rotatably connected to the chassis (1), a sleeve (6) is sleeved on the support column (23), and the sleeve (6) is connected to the wire feeding rod (7).

6. The anti-collision precision wire feeding device according to claim 5, characterized in that: A T-shaped slot is formed on one side of the chassis (1), the T-shaped slot is located on the inner side of the cover plate (5), a micro switch (25) is mounted on one side of the T-shaped slot, a slider (24) is mounted on one side of the micro switch (25), the slider (24) is connected to the moving block (22), and the slider (24) is slidably mounted in the T-shaped slot.

7. The anti-collision precision wire feeding device according to claim 6, characterized in that: The centers of the wire feed tube (3), the first wire clamp (9), the second wire clamp (10), the fixed plate (19), the connecting shaft (20), the moving block (22), the support column (23) and the sleeve (6) are located on the same straight line.

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