Laser nozzle assembly and laser cutting device

Abstract

This application provides a laser nozzle assembly and a laser cutting device, relating to the field of laser cutting technology. The laser nozzle assembly includes a nozzle body with an orifice; a sleeve fitted onto the nozzle body, movable relative to the nozzle body along its axial direction, and used to contact a workpiece; and a measuring component, part of which is disposed on the sleeve, used to measure the distance between the bottom of the sleeve and the orifice. The laser nozzle assembly of this application measures the distance between the nozzle body and the workpiece by measuring the distance between the bottom of the sleeve and the orifice, without manual intervention, and with high accuracy.

Description

Technical Field

[0001] This application relates to the field of laser cutting technology, and in particular to a laser nozzle assembly and a laser cutting device. Background Technology

[0002] The laser cutting device includes a support body and a laser nozzle assembly mounted on the support body. In order to ensure the processing quality of the workpiece, it is necessary to periodically measure the distance between the nozzle body of the laser nozzle assembly and the workpiece.

[0003] In related technologies, the nozzle body is moved to the cutting position by a support body, and the distance between the nozzle body and the workpiece is statically measured by a feeler gauge.

[0004] However, the accuracy of manual measurement using feeler gauges is relatively low. Summary of the Invention

[0005] This application provides a laser nozzle assembly and a laser cutting device to solve the problem of low accuracy when manually measuring the distance between the laser nozzle and the workpiece using a feeler gauge.

[0006] In a first aspect, embodiments of this application provide a laser nozzle assembly, comprising:

[0007] The nozzle body has a nozzle opening.

[0008] A socket is fitted onto the nozzle body and can move relative to the nozzle body along the axial direction of the nozzle body. The socket is used to contact the workpiece.

[0009] The measuring component, part of which is mounted on the socket, is used to measure the distance between the bottom of the socket and the nozzle.

[0010] In one possible implementation, the measuring component includes a scale and an indicator, one of which is disposed on a socket and the other of which is disposed on a nozzle body, the indicator being used to contact the scale on the scale.

[0011] In one possible implementation, the scale element is a scale dial with multiple graduations spaced apart along the axial direction of the nozzle body.

[0012] In one possible implementation, the indicator includes:

[0013] The first connecting section is connected to the nozzle body or the socket.

[0014] The second connecting segment is connected to the first connecting segment and extends in the direction toward the scale element;

[0015] The indicator segment is connected to the second connecting segment and is used to contact the scale on the scale element.

[0016] In one possible implementation, the indicator segment is triangular, with one corner of the triangle designed to contact a graduation on the scale element.

[0017] In one possible implementation, the laser nozzle assembly further includes a follower fixing component, the sleeve having a follower hole, the follower fixing component comprising:

[0018] The first fixing member is inserted into the follower hole and can move in the follower hole along the axial direction of the nozzle body. The first fixing member is connected to the nozzle body.

[0019] The first elastic element is sleeved on the first fixed element and abuts between the sleeve and the first fixed element.

[0020] In one possible implementation, the first fixing member includes a third connecting section and a sliding section that are interconnected, and the follower hole includes a sliding hole section and a guide hole section that are interconnected.

[0021] The third connecting section is detachably connected to the nozzle body, and the sliding section is inserted into the sliding hole section;

[0022] The width of the third connecting section is greater than the width of the sliding hole section, and the width of the third connecting section is less than the width of the guide hole section.

[0023] In one possible implementation, the laser nozzle assembly further includes a backstop assembly, which includes:

[0024] The elastic anti-reverse pin includes a pin body and a second elastic element. The pin body is inserted into the sleeve, and the second elastic element is sleeved on the pin body. The second elastic element connects the pin body and the sleeve.

[0025] Multiple positioning elements are provided, each positioned at intervals along the axial direction of the nozzle body, and a backstop groove is formed between two adjacent positioning elements.

[0026] The socket moves relative to the nozzle body to compress or extend the second elastic element and engage the pin in different anti-reverse grooves.

[0027] In one possible implementation, the laser nozzle assembly further includes a third elastic element, which is sleeved on the nozzle body;

[0028] The socket has a first protrusion that protrudes toward the nozzle body, and the nozzle body has a second protrusion that protrudes toward the socket. A third elastic member abuts between the first protrusion and the second protrusion.

[0029] Secondly, embodiments of this application provide a laser cutting apparatus, including a support body and any of the laser nozzle assemblies provided in the first aspect disposed on the support body.

[0030] The laser nozzle assembly and laser cutting device provided in this application embodiment include a nozzle body with a nozzle orifice for cutting workpieces; a sleeve fitted onto the nozzle body, which contacts the workpiece and can move relative to the nozzle body along its axial direction to change the distance between the bottom of the sleeve and the nozzle orifice; and a measuring component, partly mounted on the sleeve, used to measure the distance between the bottom of the sleeve and the nozzle orifice. The measuring component is unaffected by human factors, resulting in high accuracy of the measurement results. Attached Figure Description

[0031] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of the embodiments of this application.

[0032] Figure 1 This is a schematic diagram of the structure of the laser nozzle assembly located on the workpiece according to an embodiment of this application;

[0033] Figure 2 for Figure 1 A schematic diagram of the measurement component of the laser nozzle assembly;

[0034] Figure 3 for Figure 1 A schematic diagram of the connection between the follow-up positioning component and the sleeve in the laser nozzle assembly;

[0035] Figure 4 for Figure 1 A schematic diagram of the anti-reverse assembly of the laser nozzle assembly;

[0036] Figure 5 for Figure 1 A schematic diagram of the connection between the socket and the nozzle body of the laser nozzle assembly.

[0037] Explanation of reference numerals in the attached figures:

[0038] 10-Workpiece;

[0039] 100 - Nozzle body; 110 - Second protrusion; 120 - Nozzle opening;

[0040] 200 - Socket; 210 - Follower hole; 211 - Sliding hole section; 212 - Guide hole section; 220 - First protrusion;

[0041] 300 - Measuring component; 310 - Scale element; 320 - Indicator element; 321 - First connecting section; 322 - Second connecting section; 323 - Indicator section;

[0042] 400 - Follow-up positioning component; 410 - First fixing member; 411 - Third connecting section; 412 - Sliding section; 413 - Abutting part; 420 - First elastic member;

[0043] 500 - Anti-reverse assembly; 510 - Elastic anti-reverse pin; 511 - Pin body; 512 - Second elastic element; 520 - Positioning element; 521 - Inlet part; 530 - Anti-reverse groove;

[0044] 600 - Third elastic element.

[0045] To facilitate understanding of the embodiments of this application, the spline curves and arrows used in the reference numerals in the accompanying drawings are explained below: spline curves without arrows indicate solid components, that is, components with solid structures; spline curves with arrows indicate virtual components, that is, components without solid structures.

[0046] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the embodiments of this application in any way, but rather to illustrate the concepts of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In the description of the embodiments of this application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships (if present), are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of this application 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, and therefore should not be construed as a limitation on the embodiments of this application. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Where there is no conflict, embodiments of this application and the various features thereof can be combined with each other, all of which are within the scope of protection of this application.

[0049] This application provides a laser nozzle assembly. Figure 1 This is a schematic diagram of the structure of the laser nozzle assembly located on the workpiece 10.

[0050] Specifically, please see Figure 1 The laser nozzle assembly includes: a nozzle body 100 having a nozzle 120; a socket 200 fitted onto the nozzle body 100, movable relative to the nozzle body 100 along the axial direction of the nozzle body 100, and used to contact the workpiece 10; and a measuring component 300, part of which is disposed on the socket 200, used to measure the distance between the bottom of the socket 200 and the nozzle 120.

[0051] The nozzle body 100 is the core component for laser output. The nozzle body 100 has a nozzle 120, which is used to eject the laser beam and auxiliary gas to achieve the cutting of the workpiece 10. It should be noted that the nozzle body 100 is a structural design that already exists in the art, and will not be described in detail here.

[0052] The change in the distance between the nozzle body 100 and the workpiece 10 affects the processing quality of the workpiece 10. Therefore, in production, it is usually necessary to measure the distance between the nozzle body 100 and the workpiece 10 periodically. In related technologies, the nozzle body 100 is usually moved to the cutting position by a support body, and then the operator uses a feeler gauge to statically measure the distance between the nozzle body 100 and the workpiece 10. However, manual measurement depends on the operator's skill level and experience. If the operator's skill level is not high or their experience is insufficient, the accuracy of the measurement results will be low.

[0053] In this embodiment, the introduction of the socket 200 and the measuring component 300 solves the above-mentioned problems.

[0054] Specifically, the socket 200 is sleeved on the nozzle body 100. The socket 200 can move relative to the nozzle body 100 along the axial direction of the nozzle body 100. When the laser nozzle assembly moves toward the workpiece 10, the bottom of the socket 200 can contact the workpiece 10. The distance between the bottom of the socket 200 and the nozzle 120 is actually the distance between the bottom of the socket 200 and the nozzle 120 in the axial direction of the nozzle body 100. When the nozzle body 100 moves to the cutting position, the distance between the bottom of the socket 200 and the nozzle 120 is the working distance between the nozzle body 100 and the workpiece 10. This working distance can be used to determine whether the current cutting position of the nozzle body 100 meets the cutting requirements. If it does not meet the requirements, the machine needs to be stopped and the working distance between the nozzle body 100 and the workpiece 10 needs to be adjusted so that the working distance meets the cutting requirements.

[0055] By setting up a measuring component 300, part of which is set on the socket 200, the measuring component 300 is used to measure the distance between the bottom of the socket 200 and the nozzle 120. The measuring component 300 is not affected by human factors, thus making the measurement results more accurate.

[0056] Furthermore, through the cooperation of the socket 200 and the measuring component 300, the distance between the nozzle body 100 and the workpiece 10 can be measured while the nozzle body 100 is in operation, without stopping the machine, with short measurement time, convenient operation, and simple measurement method.

[0057] Compared to existing technologies, the embodiments of this application do not require manual operation of the laser nozzle assembly, which reduces the skill requirements for operators, lowers training costs, reduces operational difficulty, and avoids human error that could cause harm to people or equipment.

[0058] The preferred technical solution of the laser nozzle assembly according to the embodiments of this application is described below with reference to the accompanying drawings, wherein, Figure 2 This is a schematic diagram of the measuring component 300 of the laser nozzle assembly. Figure 3A schematic diagram showing the connection between the follow-up positioning component 400 and the socket 200 of the laser nozzle assembly. Figure 4 A schematic diagram of the anti-reverse assembly 500 of the laser nozzle assembly. Figure 5 This is a schematic diagram showing the connection between the socket 200 of the laser nozzle assembly and the nozzle body 100.

[0059] In some embodiments, see Figure 1 and Figure 2 The measuring component 300 includes a scale element 310 and an indicator element 320. One of the indicator element 320 and the scale element 310 is disposed on the socket 200, and the other of the indicator element 320 and the scale element 310 is disposed on the nozzle body 100. The indicator element 320 is used to contact the scale on the scale element 310.

[0060] The scale element 310 and the indicator element 320 are respectively disposed on the socket 200 and the nozzle body 100, forming a relatively movable measuring system. When the socket 200 contacts and compresses the workpiece 10, the indicator element 320 contacts different scales on the scale element 310, directly reflecting the distance between the bottom of the socket 200 and the nozzle 120, thereby reflecting the distance between the nozzle body 100 and the workpiece 10. This direct mechanical measurement method eliminates the intermediate step of manual measurement using tools. The operator only needs to observe the scale in contact with the indicator element 320 to read the distance, reducing error accumulation and thus improving the accuracy of the measurement results.

[0061] The scale element 310 and the indicator element 320 are fixedly mounted on the socket 200 and the nozzle body 100, respectively, which can ensure that the reference point for each measurement is always the same. No matter which operator performs the measurement, the same measurement benchmark is used, which improves the consistency and repeatability of the measurement.

[0062] The arrangement of the scale element 310 and the indicator element 320 allows the measurement process to be synchronized with the movement of the socket 200. Measurement begins immediately when the socket 200 contacts the workpiece 10. This design allows the measurement process to be integrated into the cutting process, completing the measurement without stopping the machine and improving production efficiency.

[0063] For some specific implementation methods, please refer to Figure 1 and Figure 2 The scale component 310 is a scale dial with multiple graduations spaced apart along the axial direction of the nozzle body 100. The multiple graduations can cover a large measurement range. High-precision measurements can be achieved by rationally designing the graduation spacing and values.

[0064] For other specific implementations, please refer to Figure 1 and Figure 2The indicator 320 includes: a first connecting section 321 connected to the nozzle body 100 or the socket 200; a second connecting section 322 connected to the first connecting section 321 and extending in a direction toward the scale member 310; and an indicator section 323 connected to the second connecting section 322 and used to contact the scale on the scale member 310.

[0065] The three-section structure of the indicator 320 (first connecting section 321, second connecting section 322 and indicator section 323) provides flexible installation and adjustment capabilities.

[0066] By setting the first connecting section 321, the indicator 320 can be securely connected to the nozzle body 100 or the socket 200, ensuring the stability of the measurement.

[0067] The second connecting segment 322 extends in the direction toward the scale member 310, making up for the distance difference between the indicator member 320 and the scale member 310, so that the indicator segment 323 can contact the scale on the scale member 310.

[0068] The indicator segment 323 is in direct contact with the scale on the scale component 310, allowing the operator to visually observe the correspondence between the indicator segment 323 and the scale, thus achieving accurate scale reading.

[0069] It should be noted that the specific structure of the indicator segment 323 is not limited in this application embodiment, as long as it can accurately indicate the position of the scale. For example, the indicator segment 323 is needle-shaped, triangular, or blade-shaped.

[0070] To facilitate understanding of the specific structure of the indicator segment 323, this embodiment of the application will be described using the example of the indicator segment 323 being triangular: the indicator segment 323 is triangular, and one corner of the triangle is used to contact the scale on the scale member 310.

[0071] Specifically, the pointed corner of the triangle serves as an indicator point, precisely pointing to the scale and greatly reducing reading errors. This precise indication stems from the geometric properties of the triangle's pointed corner, which provides a tiny contact point within a limited space. This tiny contact point significantly reflects the position of the scale and the reading.

[0072] Furthermore, the sharp corners of the triangle make it easier to guide the operator's line of sight, making the reading process more intuitive and faster. This not only improves measurement efficiency but also reduces reading errors caused by line-of-sight deviations, thereby improving the accuracy of the measurement results.

[0073] In some specific embodiments (not shown in this embodiment), the scale element 310 is a scale mark, which covers the socket 200, and the socket 200 has a scale window, with the scale mark located on one side of the scale window; the indicator element 320 is a pointer, which is set on the nozzle body 100, inserted into the scale window, and points to the scale mark. Through the combination of the scale mark and the pointer, readings can be made clearly and accurately.

[0074] Furthermore, the scale component 310 is a voice broadcast component. When the socket 200 moves to the preset position, the scale component 310 can broadcast the value of the scale pointed to by the indicator 320 to provide feedback to the operator on the current distance between the nozzle body 100 and the workpiece 10.

[0075] In other embodiments, please refer to Figure 1 , Figure 3 and Figure 5 The laser nozzle assembly also includes a follower fixing component. The sleeve 200 has a follower hole 210. The follower fixing component includes a first fixing member 410, which is inserted into the follower hole 210. The first fixing member 410 can move in the follower hole 210 along the axial direction of the nozzle body 100. The first fixing member 410 is connected to the nozzle body 100.

[0076] The first fixing member 410 is connected to the nozzle body 100. A follower hole 210 is provided on the sleeve 200. The first fixing member 410 is inserted into the follower hole 210. Guided by the follower hole 210, the first fixing member 410 can move along the axial direction of the nozzle body 100 without deviating or rotating. Specifically, the follower hole 210 is located along the axial direction of the nozzle body 100.

[0077] In some specific embodiments (not shown in this embodiment), the first fixing member 410 has an abutting portion protruding in its radial direction. The abutting portion is located at one end of the first fixing member 410 away from the nozzle body 100, and the abutting portion abuts against the sleeve member 200.

[0078] Therefore, there is friction between the contact portion and the sleeve 200. Under the action of friction, the nozzle body 100 can support the sleeve 200 through the first fixing member 410. When the sleeve 200 contacts the workpiece 10 and the external force of the workpiece 10 on the sleeve 200 is greater than the above-mentioned friction, the first fixing member 410 can move in the follower hole 210 along the axial direction of the nozzle body 100.

[0079] For other specific implementations, please refer to Figure 5The first fixing member 410 has an abutting portion 413 protruding in its radial direction, and the first elastic member 420 is sleeved on the first fixing member 410, and the first elastic member 420 abuts between the sleeve member 200 and the abutting portion 413.

[0080] In this embodiment, there is friction between the first elastic member 420 and the sleeve 200. Under the action of friction, the nozzle body 100 can support the sleeve 200 through the first fixing member 410 and the first elastic member 420. When the sleeve 200 contacts the workpiece 10 and the external force exerted by the workpiece 10 on the sleeve 200 is greater than the above-mentioned friction, the first fixing member 410 can move within the follower hole 210 along the axial direction of the nozzle body 100.

[0081] In a specific implementation, the abutment part 413 can be provided on the side of the sleeve 200 away from the nozzle body 100, or it can be provided on the side of the sleeve 200 close to the nozzle body 100.

[0082] For some specific implementation methods, please refer to Figure 3 and Figure 5 The first fixing member 410 includes a third connecting section 411 and a sliding section 412 that are connected to each other. The follower hole 210 includes a sliding hole section 211 and a guide hole section 212 that are connected to each other. The third connecting section 411 is detachably connected to the nozzle body 100, and the sliding section 412 is inserted into the sliding hole section 211. The width of the third connecting section 411 is greater than the width of the sliding hole section 211, and the width of the third connecting section 411 is less than the width of the guide hole section 212.

[0083] In this embodiment, when disassembling the first fixing member 410, because the width of the third connecting segment 411 is greater than the width of the sliding hole segment 211, the third connecting segment 411 cannot slide out through the narrower sliding hole segment 211, thus preventing the first fixing member 410 from falling off. Furthermore, because the width of the third connecting segment 411 is less than the width of the guide hole segment 212, the third connecting segment 411 can pass through the guide hole segment 212, allowing the first fixing member 410 to be moved to the position of the guide hole segment 212 and then pulled out, thus completing the disassembly of the first fixing member 410 without worrying about it accidentally falling off.

[0084] It is understandable that there can be two guide hole sections 212, which are respectively set on opposite sides of the sliding hole section 211.

[0085] After the first fixing member 410 is removed, the nozzle body 100 can no longer support the socket 200, thereby allowing the socket 200 to detach from the nozzle body 100 and thus disassemble the socket 200. Even when the socket 200 is disassembled, it will not interfere with the normal operation of the nozzle body 100.

[0086] Furthermore, the socket 200 can be removed by disassembling the first fixing member 410, making it easier for operators to maintain the nozzle body 100, the socket 200, and the follow-up fixing assembly.

[0087] In practice, the third connecting section 411 is screwed, riveted or snapped to the nozzle body 100.

[0088] In some embodiments, see Figure 1 and Figure 4 The laser nozzle assembly also includes a backstop component 500, which locks the socket 200 and the nozzle body 100 when the socket 200 moves to a preset position.

[0089] By incorporating the anti-reverse component 500, a controllable self-locking mechanism is provided for the socket 200. This mechanism can position the socket 200 at different positions to achieve position adjustment and locking of the socket 200 relative to the nozzle body 100. When the socket 200 is locked, its position relative to the nozzle body 100 remains unchanged, thus maintaining the relative position between the scale element 310 and the indicator element 320, thereby ensuring the accuracy of the reading.

[0090] Further, please see Figure 4 The anti-reverse assembly 500 includes: an elastic anti-reverse pin 510 disposed on the sleeve 200; a plurality of positioning members 520, each positioning member 520 being spaced apart on the nozzle body 100 along the axial direction of the nozzle body 100, with an anti-reverse groove 530 formed between two adjacent positioning members 520; the sleeve 200 moves relative to the nozzle body 100 to compress or extend the elastic anti-reverse pin 510 so that the elastic anti-reverse pin 510 engages in different anti-reverse grooves 530.

[0091] The resilient anti-reverse pin 510 is provided on the socket 200, which makes the anti-reverse assembly 500 flexible and adaptable. When the socket 200 moves to the desired position, the resilient anti-reverse pin 510 can automatically extend or compress and quickly engage in the corresponding anti-reverse groove 530, making the anti-reverse locking process of the anti-reverse assembly 500 simple and quick.

[0092] Multiple positioning elements 520 are spaced apart along the axial direction of the nozzle body 100, and a retaining groove 530 is formed between two adjacent positioning elements 520. The multiple retaining grooves 530 provide multiple preset locking positions for the elastic retaining pin 510. This design allows the operator to select the appropriate locking position under different working conditions, realize multi-level adjustment of the scale reading, and thus improve the accuracy of the scale reading.

[0093] For some specific implementation methods, please refer to Figure 4 The elastic anti-reverse pin 510 includes: a pin body 511, which is inserted into the socket 200; and a second elastic member 512, which is sleeved on the pin body 511 and connects the pin body 511 and the socket 200.

[0094] The pin 511 is inserted into the socket 200, so that the pin 511 can be stably supported on the socket 200.

[0095] The second elastic element 512 is sleeved on the pin 511 and connects the pin 511 and the sleeve 200. This can prevent the pin 511 from loosening or falling off during use. Furthermore, under the action of the elastic force of the second elastic element 512, the pin 511 can freely extend and retract when the sleeve 200 moves relative to the nozzle body 100, thereby smoothly entering or exiting different anti-reverse grooves 530 and avoiding jamming.

[0096] In a specific implementation, the pin body 511 has a connecting portion (not shown) that protrudes in its radial direction, and the first elastic member 420 is sleeved on the pin body 511. The first elastic member 420 connects the sleeve 200 and the connecting portion.

[0097] Furthermore, the connecting part can be located on the side of the socket 200 away from the nozzle body 100, or it can be located on the side of the socket 200 close to the nozzle body 100.

[0098] For other specific implementations, please refer to Figure 4 The positioning member 520 has an inlet portion 521, and the sleeve 200 moves relative to the nozzle body 100 so that the elastic anti-reverse pin 510 is smoothly inserted into the anti-reverse groove 530 along the inlet portion 521.

[0099] By providing the inlet portion 521, the specific shape of which allows the elastic anti-reverse pin 510 to slide into the anti-reverse groove 530 along the guide surface of the inlet portion 521, rather than making direct hard contact with the positioning member 520, this smooth inlet method reduces inlet resistance. This not only allows the elastic anti-reverse pin 510 to be inserted into the anti-reverse groove 530 more smoothly, but also makes the movement of the socket 200 relative to the nozzle body 100 smoother.

[0100] In some examples, the inlet portion 521 is inclined or arc-shaped.

[0101] In some other embodiments (not shown in this embodiment), the anti-reverse component 500 is an electric telescopic cylinder. The electric telescopic cylinder is disposed on the sleeve 200. When the sleeve 200 moves to a preset position, the electric telescopic cylinder extends and abuts against the nozzle body 100. Under the action of friction, the sleeve 200 cannot move relative to the nozzle body 100, so as to lock the relative position of the sleeve 200 and the nozzle body 100.

[0102] In some other embodiments, please refer to Figure 1 and Figure 5 The laser nozzle assembly also includes a third elastic element 600, which is sleeved on the nozzle body 100 and abuts between the sleeve 200 and the nozzle body 100.

[0103] By setting a third elastic element 600, during the process of the nozzle body 100 moving to the cutting position, the sleeve 200 abuts against the workpiece 10, the sleeve 200 moves relative to the nozzle body 100, and the third elastic element 600 extends or compresses. The third elastic element 600 has a buffering effect and can absorb the impact force between the sleeve 200 and the workpiece 10 to ensure the smooth progress of the measurement process.

[0104] Furthermore, when the anti-reverse component 500 does not lock the socket 200 and the nozzle body 100, the distance between the bottom of the socket 200 and the nozzle 120 is maximized under the action of the elastic force of the third elastic element 600, making the laser nozzle assembly applicable to scenarios where the distance does not exceed the above distance, thus having a wide range of applications.

[0105] It should be noted that the embodiments of this application do not limit the specific structure of the first elastic member 420, the second elastic member 512, and the third elastic member 600, as long as elastic connection or elastic contact can be achieved. For example, the first elastic member 420, the second elastic member 512, and the third elastic member 600 are all springs or elastic sleeves.

[0106] For some specific implementation methods, please refer to Figure 5 The socket 200 has a first protrusion 220 that protrudes toward the nozzle body 100, and the nozzle body 100 has a second protrusion 110 that protrudes toward the socket 200. The third elastic member 600 abuts between the first protrusion 220 and the second protrusion 110.

[0107] In this embodiment, the third elastic member 600 abuts against the first protrusion 220 and the second protrusion 110 respectively. Therefore, the third elastic member 600 is not connected to the sleeve 200 and the nozzle body 100. Thus, both the third elastic member 600 and the sleeve 200 can be detached from the nozzle body 100 for easy maintenance.

[0108] In some other specific embodiments (not shown in this embodiment), the socket 200 has a first protrusion 220 that protrudes toward the nozzle body 100, the nozzle body 100 has a second protrusion 110 that protrudes toward the socket 200, and a third elastic member 600 is connected between the first protrusion 220 and the second protrusion 110.

[0109] In this embodiment, the third elastic member 600 is connected between the first protrusion 220 and the second protrusion 110, so that the sleeve 200, the third elastic member 600 and the nozzle body 100 are connected together, realizing the installation and support of the sleeve 200 and the third elastic member 600. Therefore, there is no need to design an additional support structure to connect the sleeve 200 and the nozzle body 100, making the structure of the laser nozzle assembly relatively simple.

[0110] This application also provides a laser cutting device, including a support body (not shown) and any of the aforementioned laser nozzle assemblies disposed on the support body.

[0111] The laser cutting device in this embodiment adopts all the technical solutions of any of the aforementioned laser nozzle assemblies, and therefore has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be repeated here.

[0112] In some specific implementations, the support body is a cutting table, a robot, or a robotic arm, which facilitates the control of the movement of the laser nozzle assembly.

[0113] It should be understood that the embodiments of this application are not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A laser nozzle assembly, characterized in that, include: The nozzle body (100) has a nozzle (120) on it. A socket (200) is sleeved on the nozzle body (100). The socket (200) is movable relative to the nozzle body (100) along the axial direction of the nozzle body (100). The socket (200) is used to contact the workpiece (10). A measuring component (300), part of which is disposed on the socket (200), is used to measure the distance between the bottom of the socket (200) and the nozzle (120); The measuring component (300) includes a scale element (310) and an indicator element (320), one of the indicator element (320) and the scale element (310) being disposed on the socket (200), and the other of the indicator element (320) and the scale element (310) being disposed on the nozzle body (100), the indicator element (320) being used to contact the scale on the scale element (310); It also includes a follower fixing component, wherein the sleeve (200) has a follower hole (210), and the follower fixing component includes: The first fixing member (410) is inserted into the follower hole (210). The first fixing member (410) can move in the follower hole (210) along the axial direction of the nozzle body (100). The first fixing member (410) is connected to the nozzle body (100). The first elastic element (420) is sleeved on the first fixing element (410) and abuts between the sleeve (200) and the first fixing element (410); The first fixing member (410) includes a third connecting section (411) and a sliding section (412) that are connected to each other, and the follower hole (210) includes a sliding hole section (211) and a guide hole section (212) that are connected to each other. The third connecting section (411) is detachably connected to the nozzle body (100), and the sliding section (412) is inserted into the sliding hole section (211); The width of the third connecting segment (411) is greater than the width of the sliding hole segment (211), and the width of the third connecting segment (411) is less than the width of the guide hole segment (212).

2. The laser nozzle assembly according to claim 1, characterized in that, The scale element (310) is a scale plate, which has a plurality of scales spaced apart along the axial direction of the nozzle body (100).

3. The laser nozzle assembly according to claim 1, characterized in that, The indicator (320) includes: The first connecting section (321) is connected to the nozzle body (100) or the socket (200); The second connecting segment (322) is connected to the first connecting segment (321) and extends in a direction toward the scale member (310); Indicator segment (323), which is connected to the second connecting segment (322), is used to contact the scale on the scale member (310).

4. The laser nozzle assembly according to claim 3, characterized in that, The indicator segment (323) is triangular, with one corner of the triangle used to contact the scale on the scale member (310).

5. The laser nozzle assembly according to any one of claims 1-4, characterized in that, It also includes a backstop component (500), the backstop component (500) comprising: The elastic anti-reverse pin (510) includes a pin body (511) and a second elastic element (512). The pin body (511) is inserted into the sleeve (200), and the second elastic element (512) is sleeved on the pin body (511). The second elastic element (512) connects the pin body (511) and the sleeve (200). Multiple positioning elements (520) are provided at intervals on the nozzle body (100) along the axial direction of the nozzle body (100), and a backstop groove (530) is formed between two adjacent positioning elements (520). The socket (200) moves relative to the nozzle body (100) to compress or extend the second elastic element (512) and to engage the pin (511) in the different anti-reverse grooves (530).

6. The laser nozzle assembly according to any one of claims 1-4, characterized in that, It also includes a third elastic element (600), which is sleeved on the nozzle body (100); The socket (200) has a first protrusion (220) that protrudes toward the nozzle body (100), and the nozzle body (100) has a second protrusion (110) that protrudes toward the socket (200). The third elastic member (600) abuts between the first protrusion (220) and the second protrusion (110).

7. A laser cutting device, characterized in that, It includes a support body and a laser nozzle assembly as described in any one of claims 1-6 disposed on the support body.

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