Measuring tool for shielding gas nozzle of laser welding machine

Abstract

The utility model discloses a measuring tool for a shielding gas nozzle of a laser welding machine, which comprises a main body piece, a first positioning piece and a second positioning piece, the main body piece is pre-erected on a protective cover to form a measuring foundation, and then the first positioning piece is operated to move on the main body piece until the end part of the first positioning piece is in contact with an extension rod on the nozzle; the horizontal measurement operation of the position can be completed through the reading of the relative position of the first positioning piece and the first measuring scale, then the second positioning piece is operated to move on the main body piece until the end part of the second positioning piece is in contact with the nozzle, and the vertical measurement operation of the position can be completed through the reading of the relative position of the second positioning piece and the second measuring scale. The whole measurement operation is simple and stable, the requirement for data calibration of operators is low, the manual measurement efficiency is improved, the effectiveness of the measurement result is kept, and the stability of the shielding gas nozzle of the laser welding machine during actual operation is reliably improved.

Description

Technical Field

[0001] This application relates to the field of laser welding machine technology, and in particular to a measuring fixture for the protective gas nozzle of a laser welding machine. Background Technology

[0002] In the current steel industry, laser welding machines are highly regarded for their fast welding speed, high energy density, and small heat-affected zone. Laser welding relies on a shielding gas, whose main function is to effectively disperse the plasma cloud that may absorb or scatter the laser light and to isolate oxygen to prevent oxidation of the weld seam on the steel strip surface. If the nozzle position is inappropriate, the plasma cloud cannot be effectively dispersed, potentially leading to porosity, incomplete penetration, and in severe cases, even weld breakage.

[0003] The shielding gas nozzle is typically divided into upper and lower parts, which protect the upper and lower surfaces of the strip steel, respectively. Welding machine maintenance personnel need to periodically measure the position of the shielding gas nozzle using measuring tools (steel ruler, vernier caliper) to ensure that its position meets the accuracy requirements. Due to factors such as confined space, obstructed vision, and the on-site environment, the nozzle position often deviates, which adversely affects the weld quality.

[0004] Because steel rulers and vernier calipers cannot precisely determine the position of the apex of the support wheel, estimations based on subjective feeling are prone to significant errors. Furthermore, it is difficult for surveyors to ensure the vertical and horizontal placement of the steel rulers and vernier calipers, resulting in low efficiency, significant data fluctuations, and poor measurement accuracy during manual measurement. Utility Model Content

[0005] In view of the deficiencies in the prior art, this application provides a measuring fixture for the shielding gas nozzle of a laser welding machine to solve the problem of large measurement error of the shielding gas nozzle in the prior art.

[0006] The above-mentioned objectives of this application are mainly achieved through the following technical solutions:

[0007] A measuring fixture for a shielding gas nozzle in a laser welding machine, the measuring fixture comprising:

[0008] A main body is arranged on a protective cover, and a first measuring scale is arranged horizontally on the main body, and a second measuring scale is arranged vertically on the main body.

[0009] The first positioning element is movably arranged on the main body and can reciprocate on the main body along the arrangement direction of the first measuring scale. When one end of the first positioning element contacts the extension rod on the nozzle, the reading of the first positioning element on the first measuring scale is the horizontal measurement data at the extension rod.

[0010] The second positioning element is movably arranged on the main body and can reciprocate on the main body along the arrangement direction of the second measuring scale. When one end of the second positioning element contacts the nozzle, the reading of the second positioning element on the second measuring scale is the vertical measurement data at the nozzle.

[0011] In an optional embodiment, the main body is provided with a first guide groove arranged parallel to the first measuring scale, one end of the first positioning member extends into the first guide groove, and the first positioning member can reciprocate within the first guide groove.

[0012] In an optional embodiment, the first positioning member is provided with a positioning bolt, one end of which passes through the first guide groove and is threadedly connected to the first positioning member, and the other end can be blocked on the main body member.

[0013] In an optional embodiment, the main body is provided with a positioning seat, and the second positioning member is vertically and vertically arranged on the positioning seat.

[0014] In an optional embodiment, the positioning seat includes a positioning plate fixedly mounted on the main body, and the positioning plate is provided with at least two vertically arranged guide rods, which pass through the second positioning plate.

[0015] In an optional implementation, the guide rod is made of detachable bolts.

[0016] In an optional embodiment, the second positioning member is provided with a detachable grip portion, which is a clamping bolt.

[0017] In an optional embodiment, the main body is provided with a first level parallel to the first measuring scale.

[0018] In an optional embodiment, the main body is provided with a second level perpendicular to the first measuring scale.

[0019] In an optional embodiment, the bottom of the main body component is provided with multiple gaskets.

[0020] Compared with the prior art, the advantages of this application are:

[0021] The measuring fixture described in this application is used for measuring the shielding gas nozzle of a laser welding machine. The measuring fixture includes a main body, a first positioning member, and a second positioning member. The main body is mounted on a protective cover, and a first measuring scale is arranged horizontally on the main body, as well as a second measuring scale arranged vertically. The first and second positioning members are movably mounted on the main body and can reciprocate along the arrangement direction of the first measuring scale. When one end of the first positioning member contacts an extension rod on the nozzle, the reading on the first measuring scale corresponding to the first positioning member is the horizontal measurement data at the extension rod. The second positioning member can also reciprocate along the arrangement direction of the second measuring scale on the main body. When one end of the second positioning member contacts the nozzle, the reading on the first measuring scale corresponding to the first positioning member is the horizontal measurement data at the extension rod. The corresponding readings on the two measuring scales are the vertical measurement data at the nozzle. When performing the measurement operation of the shielding gas nozzle of the laser welding machine, the main body is pre-built on the protective cover to form a measurement foundation. Then, the first positioning component is moved on the main body until the end of the first positioning component contacts the extension bar on the nozzle. The horizontal measurement operation at that point can be completed by reading the relative position of the first positioning component and the first measuring scale. Then, the second positioning component is moved on the main body until the end of the second positioning component contacts the nozzle. The vertical measurement operation at that point can be completed by reading the relative position of the second positioning component and the second measuring scale. The entire measurement operation is simple and stable, with low requirements for data calibration by the operator, improving the efficiency of manual measurement, maintaining the validity of the measurement results, and reliably improving the stability of the shielding gas nozzle of the laser welding machine during actual operation. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the measuring fixture provided in the embodiments of this application;

[0024] Figure 2 A top view of the measuring fixture provided in the embodiments of this application;

[0025] Figure 3 A side view of the measuring fixture provided in an embodiment of this application;

[0026] Figure 4 This is a schematic diagram of the measurement of the first positioning element provided in the embodiments of this application;

[0027] Figure 5This is a schematic diagram of the second positioning element being measured according to an embodiment of this application;

[0028] In the diagram: 100, main body; 101, first measuring scale; 102, first guide groove; 103, second measuring scale; 200, first positioning component; 201, positioning bolt; 300, second positioning component; 301, positioning plate; 302, guide rod; 303, grip; 401, first level; 402, second level; 501, nozzle; 502, extension rod. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that the description of these embodiments is intended to aid in understanding the present invention, but does not constitute a limitation thereof. The specific structural and functional details disclosed herein are only for describing exemplary embodiments of the present invention. However, the present invention may be embodied in many alternative forms and should not be construed as being limited to the embodiments described herein.

[0030] like Figure 1 , Figure 2 as well as Figure 3 As shown, Figure 1 This is a schematic diagram of the measuring fixture provided in the embodiments of this application; Figure 2 A top view of the measuring fixture provided in the embodiments of this application; Figure 3 This is a side view of the measuring fixture provided in an embodiment of this application.

[0031] A measuring fixture for a shielding gas nozzle 501 of a laser welding machine, the measuring fixture comprising a main body 100, a first positioning member 200, and a second positioning member 300, wherein:

[0032] like Figure 1 , Figure 2 As shown, the main body 100 is arranged on the protective cover, and a first measuring scale 101 is arranged horizontally on the main body 100, and a second measuring scale 103 is arranged vertically. The main body 100 can be positioned on the protective cover of the laser welding machine. The main body 100 is provided with the first measuring scale 101 and the second measuring scale 103. The first measuring scale 101 is arranged horizontally and is used to measure the target data of the nozzle 501 in the horizontal direction; the second measuring scale 103 is arranged vertically and is used to measure the target data of the nozzle 501 in the vertical direction.

[0033] like Figure 1 , Figure 2As shown, the first positioning member 200 is movably arranged on the main body 100 and can reciprocate on the main body 100 along the arrangement direction of the first measuring scale 101. When one end of the first positioning member 200 contacts the extension rod 502 on the nozzle 501, the reading of the first positioning member 200 on the first measuring scale 101 is the horizontal measurement data at the extension rod 502.

[0034] The first positioning member 200 is a movable component that can move freely in the arrangement direction of the first measuring scale 101 on the main body 100. When one end of the first positioning member 200 contacts the extension rod 502 on the nozzle 501, the horizontal measurement data at the extension rod 502 can be obtained by reading the position of the first positioning member 200 on the first measuring scale 101. This allows the operator to quickly and accurately obtain the horizontal position information of the nozzle 501.

[0035] like Figure 1 , Figure 3 As shown, the second positioning member 300 is movably arranged on the main body 100 and can reciprocate on the main body 100 along the arrangement direction of the second measuring scale 103. When one end of the second positioning member 300 contacts the nozzle 501, the corresponding reading of the second positioning member 300 on the second measuring scale 103 is the vertical measurement data at the nozzle 501.

[0036] The second positioning member 300 is also a movable component, but it moves along the vertical direction of the second measuring scale 103. When one end of the second positioning member 300 contacts the nozzle 501, the vertical measurement data at the nozzle 501 can be obtained by reading the position of the second positioning member 300 on the second measuring scale 103.

[0037] like Figure 4 , Figure 5 As shown, Figure 4 A schematic diagram of the first positioning element 200 being measured according to an embodiment of this application; Figure 5 This is a schematic diagram of the second positioning element 300 being measured according to an embodiment of this application. By reading the readings on the first measuring scale 101 and the second measuring scale 103, the operator can obtain the precise position data of the nozzle 501, and then adjust the position of the nozzle 501 to ensure the correct distribution of shielding gas during the welding process.

[0038] It can help operators quickly position the nozzle 501, reduce human error, and improve welding quality and efficiency. In addition, it can be adapted to different models of laser welding machines and nozzles 501, and has good versatility and flexibility.

[0039] In an optional embodiment, the measuring fixture of this application is used for measuring the shielding gas nozzle 501 of a laser welding machine. The working principle of the measuring fixture is as follows: the measuring fixture includes a main body 100, a first positioning member 200, and a second positioning member 300. The main body 100 is arranged on a protective cover, and a first measuring scale 101 is arranged horizontally on the main body 100, and a second measuring scale 103 is arranged vertically on the main body 100. The first positioning member 200 and the second positioning member 300 are respectively movably arranged on the main body 100 and can reciprocate on the main body 100 along the arrangement direction of the first measuring scale 101. When one end of the first positioning member 200 contacts the extension rod 502 on the nozzle 501, the reading of the first positioning member 200 on the first measuring scale 101 is the horizontal measurement data at the extension rod 502. The second positioning member 300 can also reciprocate on the main body 100 along the arrangement direction of the second measuring scale 103. When the nozzle 501 is in operation, the reading of the second positioning member 300 on the second measuring scale 103 is the vertical measurement data at the nozzle 501. When performing the measurement operation of the laser welding machine shielding gas nozzle 501, the main body 100 is used to pre-build a measurement foundation on the protective cover. Then, the first positioning member 200 is moved on the main body 100 until the end of the first positioning member 200 contacts the extension rod 502 on the nozzle 501. The horizontal measurement operation at that point can be completed by the relative position reading of the first positioning member 200 and the first measuring scale 101. Then, the second positioning member 300 is moved on the main body 100 until the end of the second positioning member 300 contacts the nozzle 501. The vertical measurement operation at that point can be completed by the relative position reading of the second positioning member 300 and the second measuring scale 103. The entire measurement operation is simple and stable, with low requirements for data calibration by the operator, improving the efficiency of manual measurement, maintaining the validity of the measurement results, and reliably improving the stability of the laser welding machine shielding gas nozzle 501 during actual operation.

[0040] like Figure 1 , Figure 2 As shown, in an optional embodiment, the main body 100 is provided with a first guide groove 102 arranged parallel to the first measuring scale 101, one end of the first positioning member 200 extends into the first guide groove 102, and the first positioning member 200 can reciprocate within the first guide groove 102.

[0041] The main body 100 is provided with a first guide groove 102 arranged parallel to the first measuring scale 101. The function of this first guide groove 102 is to provide a stable moving path for the first positioning member 200, ensuring the smoothness and accuracy of the first positioning member 200 when moving along the direction of the first measuring scale 101.

[0042] One end of the first positioning member 200 is configured to extend into the first guide groove 102. This allows the first positioning member 200 to move freely back and forth within the first guide groove 102 while maintaining parallelism with the first measuring scale 101, ensuring precise alignment during the measurement process. It also reduces potential wobbling of the first positioning member 200 during movement, improving measurement stability.

[0043] like Figure 1 , Figure 2 as well as Figure 3 As shown, in an optional embodiment, the first positioning member 200 is provided with a positioning bolt 201, one end of which passes through the first guide groove 102 and is threadedly connected to the first positioning member 200, and the other end can be blocked on the main body member 100.

[0044] One or more positioning bolts 201 are provided on the first positioning member 200. One end of these positioning bolts 201 passes through the first guide groove 102 and is threadedly connected to the first positioning member 200, while the other end can be abutted on the main body member 100. The main function of the positioning bolts 201 is to fix the position of the first positioning member 200 in the first guide groove 102, prevent displacement during the measurement process, and ensure the accuracy of the measurement data.

[0045] The first guide groove 102 and the positioning bolt 201 allow for more precise control of the position of the first positioning component 200, reducing measurement errors and improving welding quality. Furthermore, the operator can directly hold the movable positioning bolt 201 to perform displacement operations on the first positioning component 200.

[0046] like Figure 1 , Figure 2 as well as Figure 3 As shown, in an optional embodiment, the main body 100 is provided with a positioning seat, and the second positioning member 300 is movably arranged on the positioning seat.

[0047] The main body 100 is equipped with a positioning seat for supporting and fixing the second positioning member 300. The positioning seat needs to consider stability and ease of operation, and can be made of a robust material to ensure reliability and durability during the measurement process. The second positioning member 300 is height-adjustable on the positioning seat, allowing the operator to adjust its height as needed.

[0048] like Figure 1 , Figure 2 as well as Figure 3 As shown, in an optional embodiment, the positioning seat includes a positioning plate 301 fixedly mounted on the main body 100, and the positioning plate 301 is provided with at least two vertically arranged guide rods 302, which pass through the second positioning plate 301.

[0049] The positioning base includes a positioning plate 301 fixed to the main body 100, and the positioning plate 301 is provided with at least two vertically arranged guide rods 302. These guide rods 302 pass through the second positioning plate 301 and provide vertical guidance and support for the second positioning member 300.

[0050] like Figure 1 , Figure 2 as well as Figure 3 As shown, in an optional embodiment, the guide rod 302 employs a detachable bolt. The detachable bolt design of the guide rod 302 allows the operator to replace or adjust the guide rod 302 as needed. The detachable bolt design provides additional flexibility, enabling the measuring fixture to be quickly adjusted according to different usage scenarios. The middle of the bolt forms a guide for the second positioning element 300, and the end of the bolt provides a blocking constraint for the second positioning element 300.

[0051] like Figure 1 , Figure 2 as well as Figure 3 As shown, in an optional embodiment, the second positioning member 300 is provided with a detachable gripping part 303, which is a clamping bolt.

[0052] The second positioning element 300 is equipped with a detachable grip 303, which is secured by clamping bolts. This allows the operator to quickly disassemble or replace the grip 303 as needed to adapt to different operating habits or measurement requirements. The clamping bolts provide a simple and effective fixing mechanism, ensuring the stability and reliability of the grip 303 during use, and facilitating the operator's raising and lowering of the second positioning element 300 via the grip 303.

[0053] like Figure 1 , Figure 2 as well as Figure 3 As shown, in an optional embodiment, the main body 100 is provided with a first level 401 parallel to the first measuring scale 101.

[0054] The main body 100 is equipped with a first level 401 parallel to the first measuring scale 101. The function of the first level 401 is to help the operator ensure the accuracy of the measuring fixture in the horizontal direction. By observing the bubble in the first level 401, the operator can quickly adjust the tilt angle of the main body 100 on the horizontal reference until the bubble is centered, thereby ensuring the horizontal alignment of the measuring fixture, which is crucial for obtaining accurate horizontal measurement data.

[0055] like Figure 1 , Figure 2 as well as Figure 3As shown, in an optional embodiment, the main body 100 is provided with a second level 402 that is perpendicular to the first measuring scale 101.

[0056] In addition to the first level 401, the main body 100 is also equipped with a second level 402 perpendicular to the first measuring scale 101. This second level 402 is used to ensure the accuracy of the measuring fixture in the horizontal dimension. Similar to the first level 401, the operator can adjust the left and right tilt angle of the main body 100 on the horizontal reference by observing the bubble of the second level 402, which is equally important for obtaining accurate vertical measurement data.

[0057] In an optional embodiment, the bottom of the main body 100 is provided with multiple shims. These shims provide additional stability and protection. The shims prevent the main body 100 from directly contacting the protective cover or other hard surfaces, reducing wear and damage. Simultaneously, the shims also help adjust the horizontal position of the main body 100, ensuring the measuring fixture remains stable on different surfaces.

[0058] It should be understood that the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance. Although the terms "first," "second," etc., may be used herein to describe various units, these units should not be limited by these terms. These terms are only used to distinguish one unit from another. For example, a first unit may be referred to as a second unit, and similarly, a second unit may be referred to as a first unit, without departing from the scope of the exemplary embodiments of this utility model.

[0059] It should be understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" in this article describes another relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the related objects before and after it are in an "or" relationship.

[0060] It should be understood that in the description of this utility model, the terms "upper," "vertical," "inner," "outer," etc., indicate the orientation or positional relationship when the disclosed product is used, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this utility model and simplifying the description, 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.

[0061] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0062] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments of the present invention. As used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” “containing,” and / or “including” as used herein specify the presence of the stated features, integers, steps, operations, units, and / or components, and do not exclude the presence or addition of one or more other features, quantities, steps, operations, units, components, and / or combinations thereof.

[0063] Specific details are provided in the following description to provide a complete understanding of the exemplary embodiments. However, those skilled in the art will understand that the exemplary embodiments can be implemented without these specific details. In other embodiments, well-known processes, structures, and techniques may be omitted in the depiction of non-essential details to avoid obscuring the exemplary embodiments.

[0064] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

[0065] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art.

Claims

1. A measuring fixture for a shielding gas nozzle in a laser welding machine, characterized in that, The measuring fixture includes: A main body is arranged on a protective cover, and a first measuring scale is arranged horizontally on the main body, and a second measuring scale is arranged vertically on the main body. The first positioning element is movably arranged on the main body and can reciprocate on the main body along the arrangement direction of the first measuring scale. When one end of the first positioning element contacts the extension rod on the nozzle, the reading of the first positioning element on the first measuring scale is the horizontal measurement data at the extension rod. The second positioning element is movably arranged on the main body and can reciprocate on the main body along the arrangement direction of the second measuring scale. When one end of the second positioning element contacts the nozzle, the reading of the second positioning element on the second measuring scale is the vertical measurement data at the nozzle.

2. The measuring fixture for the shielding gas nozzle of a laser welding machine as described in claim 1, characterized in that: The main body is provided with a first guide groove arranged parallel to the first measuring scale, and one end of the first positioning member extends into the first guide groove, and the first positioning member can reciprocate within the first guide groove.

3. The measuring fixture for the shielding gas nozzle of a laser welding machine as described in claim 2, characterized in that: The first positioning member is provided with a positioning bolt. One end of the bolt passes through the first guide groove and is threadedly connected to the first positioning member, while the other end can be blocked on the main body.

4. The measuring fixture for the shielding gas nozzle of a laser welding machine as described in claim 1, characterized in that: The main body is provided with a positioning seat, and the second positioning component can be raised and lowered on the positioning seat.

5. The measuring fixture for the shielding gas nozzle of a laser welding machine as described in claim 4, characterized in that: The positioning seat includes a positioning plate fixedly mounted on the main body, and the positioning plate is provided with at least two vertically arranged guide rods, which pass through the second positioning member.

6. The measuring fixture for the shielding gas nozzle of a laser welding machine as described in claim 5, characterized in that: The guide rod uses detachable bolts.

7. The measuring fixture for the shielding gas nozzle of a laser welding machine as described in claim 1, characterized in that: The second positioning member is provided with a detachable gripping part, which is a clamping bolt.

8. The measuring fixture for the shielding gas nozzle of a laser welding machine as described in claim 1, characterized in that: The main body is equipped with a first level, which is parallel to the first measuring scale.

9. The measuring fixture for the shielding gas nozzle of a laser welding machine as described in claim 8, characterized in that: The main body is equipped with a second level that is perpendicular to the first measuring scale.

10. The measuring fixture for the shielding gas nozzle of a laser welding machine as described in claim 9, characterized in that: The bottom of the main body is provided with multiple gaskets.

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