Gas shielded welding torch with angle display

Abstract

The utility model provides a kind of gas shielded welding welding torch with angle display, comprising: welding torch body, the welding torch body inside is equipped with the conveying channel for conveying welding wire and protective gas, its one end is connected with manipulator body through welding torch connecting piece, the other end is equipped with welding torch head, the outer side of welding torch head is equipped with detachable sheath, display screen and angle measurement module are connected on the welding torch body, the display screen and the angle measurement module are connected with communication.It can be easily read the welding angle of current welding work point, the welding torch forward inclination angle when the posture of welding torch is adjusted by each shaft of manipulator to carry out program preparation, to realize the unity of same weld welding angle and forward inclination angle, avoid subjective experience determination, greatly improve programming efficiency and product welding quality.

Description

TECHNICAL FIELD

[0001] The utility model relates to manipulator welding technical field especially relates to a gas shielded welding welding torch with angle display. BACKGROUND

[0002] In the gas shielded welding manipulator welding work process, the working angle of the welding torch has a great influence on the product welding quality. The proper welding angle can ensure that the weld is uniform and full, and avoid the weld being too high or too low. At present, the manipulator programming mostly depends on the teaching programming mode, and the programmer adjusts the angle of the welding torch during operation to obtain an excellent weld appearance.

[0003] However, the existing gas shielded welding manipulator welding torch generally lacks welding angle display function. This leads to the welding programmer being able to only rely on personal experience to judge whether the welding torch angle meets the requirements when programming. Due to the lack of precise quantitative basis, this experience-dependent approach is prone to cause many problems: on the one hand, the welding angle deviation is large, and it is difficult to achieve the ideal state; on the other hand, the adjustment process is poor in repeatability and difficult to ensure consistency; in addition, the adjustment time is long, which reduces the welding efficiency. The existence of these problems not only affects the stability of the welding quality, but also restricts the improvement of the welding efficiency. SUMMARY

[0004] Therefore, the purpose of the utility model is to provide a gas shielded welding welding torch with angle display, which comprises: a welding torch body, the welding torch body is internally provided with a conveying channel for conveying welding wire and protective gas, one end of which is connected with the manipulator body through a welding torch connecting piece, and the other end is provided with a welding torch head, the outer side of the welding torch head is sleeved with a detachable sheath, the welding torch body is connected with a display screen and an angle measuring module, and the display screen and the angle measuring module are in communication connection.

[0005] Further, the outer peripheral surface of the welding torch body is provided with an annular groove, and the angle measuring module comprises a plurality of MEMS acceleration sensors evenly embedded in the annular groove along the circumference of the welding torch body.

[0006] Further, the angle measuring module comprises a first angle measuring unit for detecting the welding angle of the welding torch, and a second angle measuring unit for detecting the forward inclination angle of the welding torch, and the first angle measuring unit and the second angle measuring unit each comprise a pair of MEMS acceleration sensors.

[0007] Further, the angle measuring module further comprises a gyroscope sensor.

[0008] Further, the MEMS acceleration sensor is fixed in the annular groove by screws or buckles.

[0009] Compared with the prior art, the gas shielded welding gun with angle display has the beneficial effects that

[0010] The gas shielded welding gun with angle display has the beneficial effects that BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a structural schematic view of the gas shielded welding gun with angle display of the utility model;

[0012] Figure 2 It is a welding angle schematic view of the welding gun of the utility model;

[0013] Figure 3 It is a front inclination angle schematic view of the welding gun of the utility model;

[0014] In the drawings:

[0015] 1, sheath; 2, welding gun body; 3, display screen; 4, angle measurement module; 5, welding gun connecting piece. DETAILED DESCRIPTION

[0016] In order to facilitate understanding of the utility model, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0017] The utility model will be described in detail below. In the following paragraphs, different aspects of the embodiments are defined in more detail. Each aspect thus defined can be combined with any other aspect or aspects, unless explicitly indicated otherwise. In particular, any feature that is considered to be preferred or advantageous can be combined with other feature or features that are considered to be preferred or advantageous.

[0018] In the description of the utility model, it needs to be understood that the orientation or position relationship indicated by the terms "inner", "outer", "upper", "lower", "left" and "right" is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model, and does not indicate or imply that the device must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the protection scope of the utility model.

[0019] Reference Figure 1The utility model discloses a kind of gas shielded welding torchs with angle display, when welding gun posture changes, the welding gun angle of real-time display when welding gun current position, the welding gun includes: welding gun body 2, the welding gun body 2 inside is equipped with the conveying channel for conveying welding wire and protective gas, one end is connected with mechanical hand body through welding gun connecting piece 5, the other end is equipped with welding gun head, detachable sheath 1 is equipped on the outside of the welding gun head, display screen 3 and angle measurement module are connected on the welding gun body 2, the display screen 3 has arc interference resistance high temperature influence resistance, the display screen 3 and the angle measurement module 4 realize data real-time display by welding gun internal data communication line.

[0020] In some embodiments, the sheath 1 is made of high-temperature-resistant material and is connected to the welding gun body 2 by a buckle connection method, which facilitates quick installation and replacement. A predetermined gap is provided between the sheath 1 and the welding gun head after installation, which can effectively protect the welding gun head from collision damage and reduce the impact of heat dissipation on the welding process.

[0021] In some embodiments, the outer peripheral surface of the welding gun body 2 is provided with an annular groove, and the angle measurement module 4 includes multiple MEMS acceleration sensors uniformly embedded in the annular groove along the circumference of the welding gun body 2. Specifically, the MEMS acceleration sensors are fixed in the annular groove by screws or buckles, ensuring their stability during the welding process. The shape of the annular groove restricts the movement of the MEMS acceleration sensors, preventing them from shifting position due to vibration of the welding gun or external forces during operation after installation, ensuring the stability of the measurement. At the same time, the MEMS acceleration sensors are fixed on the outside of the welding gun body 2, which can reduce the vibration impact on them during the delivery of welding wire and protective gas, and reduce the direct baking of high-temperature MEMS acceleration sensors inside the welding gun, thereby helping to prolong the service life of the MEMS acceleration sensors.

[0022] The basic principle of the MEMS acceleration sensor is to measure the inclination angle of the welding gun based on the component of gravitational acceleration. When the welding gun is inclined relative to the direction of gravity, the gravitational acceleration will generate components on the sensitive axes (usually X and Y axes) of the MEMS acceleration sensor, and the internal circuit of the MEMS acceleration sensor detects the size of these acceleration components. The microprocessor built-in the MEMS acceleration sensor calculates the ratio of the acceleration components to the gravitational acceleration through inverse trigonometric functions, thereby obtaining the inclination angle and realizing angle measurement.

[0023] Reference Figure 2As shown, the welding angle is the angle between the welding torch and the workpiece surface. In gas shielded welding, the appropriate selection of the welding angle is crucial to the welding result. A suitable welding angle ensures a uniform and full weld, avoiding welds that are too high or too low. Preferably, four MEMS accelerometers are used, and any tilting posture of the welding torch in space will be simultaneously sensed by the four MEMS accelerometers. By fitting and analyzing the data from the four MEMS accelerometers, the welding angle and forward tilt angle of the welding torch at its current position can be displayed. For example, when the welding torch tilts in a certain direction, two adjacent MEMS accelerometers will detect acceleration components of different magnitudes. By weighted averaging or other fusion algorithms on these components, the blind zone of a single sensor measurement can be eliminated, improving measurement accuracy. This can effectively reduce measurement errors and improve the overall accuracy of angle measurement.

[0024] In some embodiments, the angle measurement module 4 further includes a gyroscope sensor. The gyroscope sensor has better robustness against vibration and shock interference, and combined with data from a MEMS accelerometer, it can operate more stably in complex welding environments, reducing the impact of external interference on angle measurement.

[0025] In some embodiments, the angle measurement module 4 includes a first angle measurement unit for detecting the welding angle of the welding torch and a second angle measurement unit for detecting the forward tilt angle of the welding torch. Both the first and second angle measurement units include paired MEMS accelerometer sensors. (Reference) Figure 3 As shown, the welding torch tilt angle refers to the angle at which the welding torch is tilted in the welding direction. The welding torch tilt angle can affect the welding heat input, thereby controlling the weld penetration and width. A suitable welding torch tilt angle helps to form an ideal weld pool shape and improve weld quality.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A gas shielded welding torch with angle display, characterized in that, include: The welding torch body has an internal conveying channel for conveying welding wire and shielding gas. One end of the torch body is connected to the robot body via a welding torch connector, and the other end is equipped with a welding torch head. The welding torch head is covered with a detachable protective sleeve. The welding torch body is connected to a display screen and an angle measurement module, and the display screen and the angle measurement module are communicatively connected.

2. The gas shielded welding torch with angle display according to claim 1, characterized in that, The outer circumferential surface of the welding torch body is provided with an annular groove, and the angle measurement module includes multiple MEMS accelerometers uniformly embedded in the annular groove along the circumference of the welding torch body.

3. The gas shielded welding torch with angle display according to claim 1, characterized in that, The angle measurement module includes a first angle measurement unit for detecting the welding angle of the welding torch and a second angle measurement unit for detecting the forward tilt angle of the welding torch. Both the first angle measurement unit and the second angle measurement unit include a pair of MEMS accelerometer sensors.

4. The gas shielded welding torch with angle display according to claim 2 or 3, characterized in that, The angle measurement module also includes a gyroscope sensor.

5. The gas shielded welding torch with angle display according to claim 2, characterized in that, The MEMS accelerometer is fixed in the annular groove by screws or clips.

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