A remote control device for electric welding machine current

Abstract

The utility model belongs to electric welding machine equipment technical field discloses a kind of electric welding machine current remote control device, the rotation angle of current control knob is realized to the control of electric welding machine current size by control, the electric welding machine current remote control device includes remote control module, wireless communication module, controller, box, pivot, driving part, transmission rod subassembly, camera probe and display, using remote control module remote control mode, control driving part drives pivot rotation, pivot is connected with the current control knob of electric welding machine by driving subassembly, transmission rod subassembly passes on the torque of pivot to current control knob, compared with the connection mode of hose, transmission rod subassembly cannot distort storage elastic potential energy, effectively prevent the misrotation of current control knob, can ensure that the rotation ratio of pivot and current control knob is 1:1 accurate transmission, and feedback to the adjustment result by camera probe, realize the accurate adjustment of operator to current control knob rotation angle.

Description

Technical Field

[0001] This utility model relates to the field of electric welding machine equipment technology, and in particular to a remote current control device for electric welding machines. Background Technology

[0002] An electric welding machine uses the high-temperature electric arc generated when the positive and negative electrodes are momentarily short-circuited to melt the solder on the welding rod and the material being welded, thus bonding the objects together. Its structure is very simple; it's essentially a high-power transformer. Electric welding machines are generally classified into two types based on the type of output power: AC and DC. They utilize the principle of inductance; the inductance generates a huge voltage change when the circuit is switched on and off. The high-voltage arc generated when the positive and negative electrodes are momentarily short-circuited melts the solder on the welding rod, achieving atomic bonding.

[0003] Construction work involving pipelines and steel structures requires a significant amount of welding. For larger pipelines or work at heights, welding machines cannot be placed near operators. Therefore, they must be positioned at a considerable distance. During welding, the welding current needs frequent adjustment, which is inconvenient for operators due to the distance, consumes considerable manpower, reduces work efficiency, and, especially during high-altitude welding operations, may increase safety hazards.

[0004] Currently, the common method involves using a drive device connected to the welding machine knob via a flexible hose, which then rotates the knob. The drive device is controlled remotely via a signal, enabling remote control of the welding machine. However, when the drive device rotates more times than the welding machine knob, the flexible hose is prone to twisting during use. This twisted hose stores elastic potential energy, which, if released, can cause the welding machine knob to rotate incorrectly, resulting in inaccurate current adjustment, affecting normal welding operations and welding quality.

[0005] Therefore, there is an urgent need to propose a remote current control device for welding machines to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a remote current control device for welding machines, which solves the problem of low reliability of current adjustment caused by the accidental rotation of the current control knob in existing remote control devices for welding machines, thereby ensuring normal welding operation and improving welding quality.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] A remote current control device for a welding machine controls the magnitude of the welding machine current by controlling the rotation angle of a current control knob. The remote current control device includes:

[0009] The system includes a remote control module, a wireless communication module, and a controller. The wireless communication module is used for receiving and transmitting signals. The remote control module is connected to the wireless communication module via signal transmission, and the wireless communication module is connected to the controller via signal transmission.

[0010] The enclosure and the rotating shaft are rotatably mounted on the side wall of the enclosure and are arranged horizontally.

[0011] The drive unit is used to control the rotation speed and direction of the shaft. The input end of the drive unit is electrically connected to the controller, the output end of the drive unit is connected to one end of the shaft, and the fixed end of the drive unit is fixedly connected to the inner wall of the housing.

[0012] The transmission rod assembly has its input end connected to the other end of the rotating shaft, and its output end connected to the outer wall of the current control knob.

[0013] The welding machine is equipped with an ammeter display screen, and the camera probe is directly facing the ammeter display screen. The camera probe is electrically connected to the wireless communication module, and the camera probe is connected to the display screen via signal connection. The display screen is also connected to the wireless communication module via signal connection.

[0014] Preferably, the transmission rod assembly includes a first transmission rod, a second transmission rod, a third transmission rod, a first universal joint, and a second universal joint. One end of the first transmission rod is connected to the other end of the rotating shaft. The other end of the first transmission rod is connected to one end of the second transmission rod via the first universal joint. The other end of the second transmission rod is connected to one end of the third transmission rod via the second universal joint. The other end of the third transmission rod is connected to the outer wall of the current control knob.

[0015] Preferably, the remote current control device for the welding machine also includes a locking connector, with one end of the third transmission rod away from the second transmission rod fixedly connected to the locking connector, and the other end of the locking connector connected to the outer wall of the current control knob.

[0016] Preferably, the locking connector includes a sleeve and a screw. The sleeve has a threaded hole on its side wall, and the screw is movably inserted through the threaded hole and connected to the outer wall of the current control knob.

[0017] Preferably, the number of screws and threaded holes is at least two and they correspond one-to-one.

[0018] Preferably, the cross-section of the sleeve is annular along the direction perpendicular to the sleeve's axial direction, and at least two screw holes are evenly distributed along the circumference of the sleeve.

[0019] Preferably, the clamping connector also includes a clamping plate, with the screw abutting against the surface of the clamping plate. The axial direction of the screw is perpendicular to the contact surface between the clamping plate and the screw. Along the axial direction of the screw, the side of the clamping plate opposite to the screw abuts against the outer wall of the current control knob.

[0020] Preferably, the side of the clamping plate facing the current control knob is corrugated.

[0021] Preferably, the remote current control device for the welding machine also includes a speed reducer, which is installed inside the housing. The output end of the drive component is connected to the input end of the speed reducer, and the output end of the speed reducer is connected to the rotating shaft.

[0022] The beneficial effects of this utility model are:

[0023] This utility model provides a remote current control device for an electric welding machine. The device controls the current of the welding machine by adjusting the rotation angle of a current control knob. The device includes a remote control module, a wireless communication module, a controller, a housing, a rotating shaft, a drive component, a transmission rod assembly, a camera probe, and a display. The remote control module controls the drive component to rotate the rotating shaft. The rotating shaft is connected to the current control knob of the welding machine via the drive component. The transmission rod assembly transmits the torque of the rotating shaft to the current control knob, thereby adjusting the current by rotating the knob. Compared to a flexible hose connection, this device offers a more efficient and convenient control method. The moving rod assembly does not twist and store elastic potential energy, effectively preventing accidental rotation of the current control knob. It ensures a precise 1:1 rotation ratio between the rotating shaft and the current control knob, improving the reliability of current adjustment in the welding machine, guaranteeing normal welding operations, and enhancing welding quality. Furthermore, the camera probe can transmit the detected welding machine current value video to the display in real time via wireless communication equipment, allowing operators to accurately grasp the current level of the welding machine after adjustment and thus know the rotation angle of the current control knob. Through the feedback of the adjustment results from the camera probe, operators can achieve precise adjustment of the rotation angle of the current control knob. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the remote current control device for welding machines provided in this embodiment;

[0025] Figure 2 This is a schematic diagram illustrating the working principle of the remote current control device for welding machines provided in this embodiment.

[0026] In the picture:

[0027] 10. Current control knob; 21. Remote control module; 22. Wireless communication module; 23. Controller; 30. Housing; 31. Rotating shaft; 32. Drive component; 33. Reducer; 40. Transmission rod assembly; 41. First transmission rod; 42. Second transmission rod; 43. Third transmission rod; 44. First universal joint; 45. Second universal joint; 51. Camera probe; 52. Display; 60. Locking connector; 61. Sleeve; 62. Screw; 63. Threaded hole; 64. Clamping plate. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0032] This embodiment provides a remote current control device for welding machines, which solves the problem of low reliability of current adjustment caused by accidental rotation of the current control knob in existing remote control devices for welding machines, ensuring normal welding operation and improving welding quality.

[0033] Specifically, such as Figures 1 to 2 As shown, the remote current control device for the welding machine controls the current of the welding machine by controlling the rotation angle of the current control knob 10. This remote current control device includes a remote control module 21, a wireless communication module 22, a controller 23, a housing 30, a rotating shaft 31, a drive component 32, a transmission rod assembly 40, a camera probe 51, and a display 52. ​​The wireless communication module 22 is used for signal reception and transmission. The remote control module 21 is connected to the wireless communication module 22, and the wireless communication module 22 is connected to the controller 23. The rotating shaft 31 rotatably passes through the side wall of the housing 30 and is arranged horizontally. The drive component 32... The drive unit 32 is used to control the rotation speed and direction of the rotating shaft 31. The input end of the drive unit 32 is electrically connected to the controller 23, the output end of the drive unit 32 is connected to one end of the rotating shaft 31, and the fixed end of the drive unit 32 is fixedly connected to the inner wall of the housing 30. The input end of the transmission rod assembly 40 is connected to the other end of the rotating shaft 31, and the output end of the transmission rod assembly 40 is connected to the outer wall of the current control knob 10. The welding machine is equipped with an ammeter display screen, and the camera probe 51 is electrically connected to the wireless communication module 22. The camera probe 51 faces the ammeter display screen, and the camera probe 51 is signal-connected to the display 52. ​​The display 52 is signal-connected to the wireless communication module 22.

[0034] The current of the welding machine is controlled by adjusting the rotation angle of the current control knob 10. This remote current control device includes a remote control module 21, a wireless communication module 22, a controller 23, a housing 30, a rotating shaft 31, a drive component 32, and a transmission rod assembly 40. The device uses the remote control module 21 for remote control, sending control signals to the wireless communication module 22, which in turn controls the drive component 32 to rotate the rotating shaft 31. The rotating shaft 31 is connected to the current control knob 10 of the welding machine via the drive assembly. The transmission rod assembly 40 then transmits the torque of the rotating shaft 31 to the current control knob 10, thereby adjusting the current. Compared to a flexible hose connection, the transmission rod assembly 40 does not store elastic potential energy through twisting, effectively preventing accidental rotation of the current control knob 10. This ensures a precise 1:1 rotation ratio between the rotating shaft 31 and the current control knob 10, improving the reliability of current adjustment, guaranteeing normal welding operations, and enhancing welding quality. Furthermore, by setting the transmission rod assembly 40, the rotating shaft 31 and the current control knob 10 do not need to be on the same horizontal line. During use, the housing 30 can be placed in any convenient location, facilitating its placement and making the remote current control device for the welding machine provided in this embodiment more user-friendly. The camera probe 51 can transmit the detected welding machine current value video to the display 52 in real time via wireless communication, allowing the operator to accurately grasp the current magnitude of the welding machine after adjustment, and thus know the rotation angle of the current control knob 10. Through the feedback of the adjustment results from the camera probe 51, the operator can precisely adjust the rotation angle of the current control knob 10. In this embodiment, the controller 23 is a PLC controller; in other embodiments, the controller 23 can be a motion controller. In this embodiment, the wireless communication module 22 is a Bluetooth communication module; in other embodiments, the wireless communication module 22 is a WIFI communication module. To facilitate precise control of the rotation speed and direction of the rotating shaft 31, in this embodiment, the drive component 32 is a small servo motor; in other embodiments, the drive component 32 can be a geared motor.

[0035] Furthermore, the transmission rod assembly 40 includes a first transmission rod 41, a second transmission rod 42, a third transmission rod 43, a first universal joint 44, and a second universal joint 45. One end of the first transmission rod 41 is connected to the other end of the rotating shaft 31. The other end of the first transmission rod 41 is connected to one end of the second transmission rod 42 via the first universal joint 44. The other end of the second transmission rod 42 is connected to one end of the third transmission rod 43 via the second universal joint 45. The other end of the third transmission rod 43 is connected to the outer wall of the current control knob 10, thereby changing the axial direction of the rotating shaft 31. This further enhances the convenience of using the remote current control device for the welding machine provided in this embodiment, and the connection method of the rods further ensures the accuracy of torque transmission of the rotating shaft 31. In other embodiments, the transmission rod assembly 40 may include two transmission rods and one universal joint, or the transmission rod assembly 40 may include four transmission rods and three universal joints.

[0036] Optionally, the remote current control device for the welding machine also includes a locking connector 60. One end of the third transmission rod 43 away from the second transmission rod 42 is fixedly connected to the locking connector 60, and the other end of the locking connector 60 is connected to the outer wall of the current control knob 10, thereby realizing the connection between the third transmission rod 43 and the outer wall of the current control knob 10, and thus realizing the transmission of torque from the rotating shaft 31 to the current control knob 10.

[0037] Furthermore, the locking connector 60 includes a sleeve 61 and a screw 62. The sleeve 61 has a threaded hole 63 on its side wall. The screw 62 is movably inserted through the threaded hole 63 and is connected to the outer wall of the current control knob 10. When connecting, simply put the sleeve 61 on the current control knob 10 and then tighten the screw 62 axially along the threaded hole 63 so that the screw 62 abuts against the outer wall of the current control knob 10. This ensures that the sleeve 61 rotates to drive the current control knob 10 to rotate, preventing slippage and achieving a stable connection between the third transmission rod 43 and the current control knob 10.

[0038] Furthermore, the number of screws 62 and threaded holes 63 is at least two, and they correspond one-to-one. At least two screws 62 are connected to the outer wall of the current control knob 10, which improves the connection stability, thereby improving the stability of the connection between the third transmission rod 43 and the current control knob 10, and further improving the torque transmission accuracy of the rotating shaft 31. In this embodiment, the number of screws 62 and threaded holes 63 is four. In other embodiments, the number of screws 62 and threaded holes 63 is two, three, or five, etc.

[0039] Optionally, the cross-section of the sleeve 61 is annular along the direction perpendicular to the axial direction of the sleeve 61, and at least two screw holes are evenly distributed along the circumference of the sleeve 61, so that the clamping force of the screw 62 on the current control knob 10 is evenly distributed along the circumference of the sleeve 61, avoiding relative sliding between the outer wall of the current control knob 10 and the sleeve 61 due to uneven force, which would reduce the torque transmission accuracy of the rotating shaft 31.

[0040] Optionally, the locking connector 60 also includes a clamping plate 64. The screw 62 abuts against the surface of the clamping plate 64, with the axial direction of the screw 62 perpendicular to the contact surface between the clamping plate 64 and the screw 62. Along the axial direction of the screw 62, the side of the clamping plate 64 facing away from the screw 62 abuts against the outer wall of the current control knob 10, increasing the contact area between the screw 62 and the outer wall of the current control knob 10. This improves the stability of the connection between the sleeve 61 and the outer wall of the current control knob 10, further preventing relative sliding between the current control knob 10 and the sleeve 61. It should be noted that the number of clamping plates 64 can be equal to the number of screws 62 and correspond one-to-one, or it can be a V-shaped clamping plate 64, with two screws 62 corresponding to two sides of a V-shaped clamping plate 64. No further restrictions are imposed here; it can be determined according to the actual situation.

[0041] Furthermore, the side of the clamping plate 64 facing the current control knob 10 is made into a corrugated surface to increase the friction between the clamping plate 64 and the current control knob 10, thereby further improving the stability of the connection between the sleeve 61 and the outer wall of the current control knob 10. In other embodiments, the side of the clamping plate 64 facing the current control knob 10 can be made into a frosted surface, or both the clamping plate 64 and the outer wall of the current control knob 10 can be provided with teeth that mesh with each other.

[0042] Optionally, in order to increase the torque of the rotating shaft 31, making the start control of the current control knob 10 by the drive component 32 smoother, the rotation angle control accuracy higher, and making it easier for the operator to adjust and control the rotation angle of the current control knob 10, the welding machine current remote control device also includes a reducer 33. The reducer 33 is installed inside the housing 30, the output end of the drive component 32 is connected to the input end of the reducer 33, and the output end of the reducer 33 is connected to the rotating shaft 31.

[0043] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A remote current control device for an electric welding machine, characterized in that, The remote current control device for the welding machine controls the magnitude of the welding machine current by controlling the rotation angle of the current control knob (10). The remote current control device for the welding machine includes: The remote control module (21), the wireless communication module (22), and the controller (23) are provided. The wireless communication module (22) is used for receiving and sending signals. The remote control module (21) is connected to the wireless communication module (22) by signal, and the wireless communication module (22) is connected to the controller (23) by signal. The housing (30) and the rotating shaft (31) are rotatably inserted through the side wall of the housing (30) and the rotating shaft (31) is arranged in the horizontal direction; A drive unit (32) is used to control the rotation speed and rotation direction of the rotating shaft (31). The input end of the drive unit (32) is electrically connected to the controller (23), the output end of the drive unit (32) is connected to one end of the rotating shaft (31), and the fixed end of the drive unit (32) is fixedly connected to the inner wall of the housing (30). A transmission rod assembly (40) is provided, the input end of which is connected to the other end of the rotating shaft (31), and the output end of which is connected to the outer wall of the current control knob (10). The welding machine is equipped with an ammeter display screen, the camera probe (51) is facing the ammeter display screen, the camera probe (51) is electrically connected to the wireless communication module (22), the camera probe (51) is signal connected to the display screen (52), and the display screen (52) is signal connected to the wireless communication module (22).

2. The remote current control device for an electric welding machine according to claim 1, characterized in that, The transmission rod assembly (40) includes a first transmission rod (41), a second transmission rod (42), a third transmission rod (43), a first universal joint (44), and a second universal joint (45). One end of the first transmission rod (41) is connected to the other end of the rotating shaft (31). The other end of the first transmission rod (41) is connected to one end of the second transmission rod (42) through the first universal joint (44). The other end of the second transmission rod (42) is connected to one end of the third transmission rod (43) through the second universal joint (45). The other end of the third transmission rod (43) is connected to the outer wall of the current control knob (10).

3. The remote current control device for an electric welding machine according to claim 2, characterized in that, The remote current control device for the welding machine also includes a locking connector (60), one end of the third transmission rod (43) away from the second transmission rod (42) is fixedly connected to the locking connector (60), and the other end of the locking connector (60) is connected to the outer wall of the current control knob (10).

4. The remote current control device for an electric welding machine according to claim 3, characterized in that, The locking connector (60) includes a sleeve (61) and a screw (62). The sleeve (61) has a threaded hole (63) on its side wall. The screw (62) is movably inserted through the threaded hole (63) and is connected to the outer wall of the current control knob (10).

5. The remote current control device for an electric welding machine according to claim 4, characterized in that, The number of screws (62) and threaded holes (63) is at least two and they correspond one-to-one.

6. The remote current control device for an electric welding machine according to claim 5, characterized in that, Along the direction perpendicular to the axial direction of the sleeve (61), the cross-section of the sleeve (61) is annular, and at least two threaded holes (63) are evenly distributed along the circumference of the sleeve (61).

7. The remote current control device for an electric welding machine according to claim 4, characterized in that, The locking connector (60) also includes a clamping plate (64), the screw (62) abuts against the surface of the clamping plate (64), the axial direction of the screw (62) is perpendicular to the contact surface between the clamping plate (64) and the screw (62), and along the axial direction of the screw (62), the side of the clamping plate (64) away from the screw (62) abuts against the outer wall of the current control knob (10).

8. The remote current control device for an electric welding machine according to claim 7, characterized in that, The side of the clamping plate (64) facing the current control knob (10) is corrugated.

9. The remote current control device for an electric welding machine according to any one of claims 1-8, characterized in that, The remote current control device for the welding machine also includes a speed reducer (33), which is installed inside the housing (30). The output end of the drive unit (32) is connected to the input end of the speed reducer (33), and the output end of the speed reducer (33) is connected to the rotating shaft (31).

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