Laser engraving device and laser engraving method

Abstract

The application discloses a laser etching device and a laser etching method. The laser etching device comprises an etching device and a positioning device, and can be used for etching the SN code of an electronic pen. The electronic pen comprises a pen head and an annular surface arranged on one side of the pen head. The positioning device comprises a fixing clamp which is configured to clamp the electronic pen and make the electronic pen extend along a first direction, and the annular surface can face the etching device. The etching device can emit etching laser, and the etching laser is radiated on the annular surface, so that the SN code is etched on the annular surface. In the scheme, the SN code is etched on the annular surface at the tip end of the electronic pen, so that the SN code cannot be worn and cannot be detected and recognized. The positioning device is arranged, so that the laser etching device can stably etch the annular surface. In addition, the SN code of the electronic pen processed by the laser etching device adopting the laser etching method is not easy to be worn.

Description

Technical Field

[0001] This invention relates to the field of laser engraving technology, and in particular to a laser engraving device and a laser engraving method. Background Technology

[0002] Laser-engraved SN codes, or laser-engraved serial numbers, are serial numbers engraved on the surface of various materials using laser technology. They offer advantages such as anti-counterfeiting and fade resistance, and are commonly used for marking materials like metal, plastic, and glass. They are frequently applied in fields such as electronic product manufacturing, production date and batch number marking, and logistics management. In electronic product manufacturing, laser-engraved SN codes can be used to identify product models, specifications, serial numbers, and other information, facilitating production management and quality control.

[0003] In related technologies, it is necessary to laser-engrave the serial number (SN) code on the electronic pen. Usually, the SN code is engraved on the side or tail of the pen body. The process is simple, but the SN code is easily worn off during the transportation and use of the electronic pen, making it difficult to detect and causing difficulties in tracing the electronic pen. Summary of the Invention

[0004] The main objective of this invention is to propose a laser engraving device and method, aiming to solve the technical problem of how to avoid wear and tear on the serial number (SN) of electronic pens.

[0005] To achieve the above objectives, the present invention proposes a laser engraving device for engraving the serial number (SN) of an electronic pen, the electronic pen comprising a pen tip and an annular surface disposed on one side of the pen tip, characterized in that the laser engraving device comprises:

[0006] The engraving device is configured to emit an engraving laser.

[0007] A positioning device includes a fixing clamp configured to hold the electronic pen and extend the electronic pen along a first direction;

[0008] The annular surface faces the engraving device so that the engraving laser can radiate onto the annular surface and form the SN code on the annular surface.

[0009] In some embodiments, the positioning device further includes a positioning element having an engraving hole that extends through the positioning element along the first direction. The fixing clamp holds the electronic pen and positions the annular surface toward the positioning element. The fixing clamp is movable to allow the electronic pen to abut against the positioning element and expose the annular surface to the engraving hole, so that the engraving laser can radiate through the engraving hole onto the annular surface and form the SN code on the annular surface.

[0010] In some embodiments, the laser engraving equipment further includes:

[0011] A detection device, the detection device being used to detect the position of the annular surface relative to the engraved hole; and / or,

[0012] The detection device is used to detect and identify the SN code.

[0013] In some embodiments, the positioning device further includes a floating module connected to the fixed clamp, the floating module being configured to provide cushioning force as the electronic pen abuts against the positioning element.

[0014] In some embodiments, the floating module is disposed on the side of the fixing fixture opposite to the positioning member;

[0015] or,

[0016] The positioning device further includes a connector, the floating module is disposed on the connector, and the floating module is also connected to the fixing clamp. The fixing clamp is capable of moving relative to the connector along the first direction under the drive of the floating module.

[0017] In some embodiments, the floating module includes a fixed base, a floating element, and a support element. One end of the floating element is connected to the fixed base along the first direction, and the other end is connected to the support element. One end of the electronic pen away from the annular surface abuts against the side of the support element away from the floating element. The floating element is configured to drive the support element to move along the first direction.

[0018] In some embodiments, the mounting base has a receiving cavity with one end open, the opening being located on the side of the mounting base along the first direction near the electronic pen, the floating member being received in the receiving cavity, and one end of the floating member along the first direction being connected to the mounting base, and the other end being connected to the support member, the support member being configured to detachably cover the opening;

[0019] Wherein, one end of the electronic pen away from the annular surface abuts against the side of the support member away from the floating member, and the floating member is configured to drive the support member to move along the first direction.

[0020] In some embodiments, the floating module further includes a guide member, one end of which is connected to the support member along the first direction, and the fixed base has a guide hole, the guide member being configured to move along the first direction through the guide hole.

[0021] In some embodiments, the positioning device further includes a first motion unit, the fixing clamp being connected to the first motion unit, the first motion unit being configured to drive the fixing clamp to move along the first direction and / or the second direction so that the fixing clamp can load and unload the electronic pen, the second direction being perpendicular to the first direction.

[0022] In some embodiments, the first motion unit includes a first connecting portion;

[0023] The positioning device further includes a second motion unit, which includes a driving part and a second connecting part. The second connecting part is connected to the driving part, and one end of the second connecting part away from the driving part is connected to the first connecting part. The driving part is configured to drive the second connecting part to move along the second direction.

[0024] The second connecting portion is configured to drive the first motion unit to move along the first direction and / or along the second direction under the drive of the driving portion.

[0025] In some embodiments, the first connecting portion has a first surface connected to the second connecting portion, the second connecting portion has a second surface connected to the first connecting portion, the first surface and the second surface are configured as inclined surfaces that contact each other, and when the second connecting portion moves along the second direction under the drive of the driving portion, the first connecting portion moves along the first direction.

[0026] In some embodiments, the first connecting portion has a first surface connected to the second connecting portion, and the second connecting portion further includes a roller configured to rotate about its axis. The second connecting portion moves in a second direction under the drive of the driving portion, and the roller abuts against the first surface and rotates to cause the first connecting portion to move in the first direction; or...

[0027] The second connecting portion has a second surface connected to the first connecting portion. The first connecting portion further includes a roller configured to rotate about its axis. The second connecting portion moves along the second direction under the drive of the driving portion. The roller abuts against the second surface and rotates, so that the first connecting portion moves along the first direction.

[0028] A second aspect of the present invention also provides a laser engraving method, characterized in that it includes an electronic pen and the laser engraving device described in any of the above embodiments, the laser engraving method comprising the following steps:

[0029] Take the electronic pen and clamp it in the fixing fixture, with the annular surface facing the engraving device;

[0030] The engraving device is activated to emit the engraving laser, which radiates onto the annular surface to form the SN code.

[0031] Compared with the prior art, the beneficial effects of the present invention are:

[0032] In the technical solution of this invention, the laser engraving equipment includes an engraving device and a positioning device, which can be used to engrave the serial number (SN) of an electronic pen. The electronic pen includes a pen tip and an annular surface disposed on one side of the pen tip. The positioning device includes a fixing clamp configured to hold the electronic pen and extend it along a first direction, with the annular surface facing the engraving device. The engraving device emits an engraving laser, which radiates onto the annular surface, thereby engraving the SN on the annular surface. Compared to related technologies where the SN is laser engraved on the periphery of the pen body or the end face of the pen tip, this solution laser engraves the SN on the annular surface at one end of the pen tip, which avoids the SN being worn away and thus becoming undetectable. The positioning device allows the laser engraving equipment to stably engrave the annular surface. Furthermore, this invention also provides a laser engraving method, and the laser engraving equipment using this method can ensure that the processed SN of the electronic pen is not easily worn away. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the structure of a laser engraving device in one embodiment of the present invention;

[0035] Figure 2 This is a schematic diagram of the electronic pen.

[0036] Figure 3 This is a schematic diagram of the positioning device viewed along the second direction in one embodiment of the present invention;

[0037] Figure 4 In one embodiment of the present invention, the positioning device is along Figure 3 A sectional view cut along the AA direction;

[0038] Figure 5 In one embodiment of the present invention, the positioning device is in Figure 4 Enlarged view of point B in the middle section;

[0039] Figure 6 In one embodiment of the present invention, the positioning device is in Figure 4 An enlarged schematic diagram of part C in the middle; wherein the floating device is integrated with the first connecting part;

[0040] Figure 7 This is a schematic diagram of the positioning component from a first perspective in one embodiment of the present invention;

[0041] Figure 8 This is a schematic diagram of the positioning element from a second perspective in one embodiment of the present invention;

[0042] Figure 9 In one embodiment of the present invention, the positioning element is along... Figure 8 A sectional view cut along the DD direction; wherein the engraved hole includes a first part, a second part, and a third part;

[0043] Figure 10 This is a schematic diagram of the structure of the fixing clamp in one embodiment of the present invention;

[0044] Figure 11 This is a schematic diagram of the structure of a laser engraving device in one embodiment of the present invention;

[0045] Figure 12 This is a schematic diagram of the working instruction flow of a laser engraving device in one embodiment of the present invention.

[0046] Explanation of icon numbers:

[0047] 10-Laser engraving equipment;

[0048] 100 - Positioning device;

[0049] 110 - Fixing clamp; 111 - Clamping part; 112 - Groove structure;

[0050] 120 - Positioning component; 121 - Engraved hole; 1211 - First part; 1212 - Second part; 1213 - Third part;

[0051] 130 - Floating module; 131 - Fixed base; 1311 - Receiving cavity; 1312 - Guide hole; 132 - Floating component;

[0052] 133 - Support component; 134 - Guide component;

[0053] 140 - First motion unit; 141 - First connecting part; 1411 - First surface;

[0054] 150 - Second motion unit; 151 - Second connecting part; 1511 - Second surface; 1512 - Roller; 152 - Drive unit;

[0055] 160-jig vertical board;

[0056] 170-jig base plate;

[0057] 200 - Engraving device;

[0058] 210 - Engraving Laser;

[0059] 300 - Detection device;

[0060] 400 - Equipment cabinet; 410 - Workbench; 420 - Casters; 430 - Foot cups;

[0061] 500 - Monitor;

[0062] 600-Controller;

[0063] 20 - Electronic pen;

[0064] 21-Pen tip; 22-Ring surface;

[0065] X - First direction; Y - Second direction.

[0066] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0067] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0068] As a smart interactive device, electronic pens can be widely used in education, office work, design, and other fields, providing users with a lightweight, efficient, and convenient digital writing and data interaction experience. To facilitate tracking and traceability, serial number (SN) codes can be engraved on the electronic pens. SN codes help businesses with quality control and after-sales service. Through the SN code, businesses can understand information such as the product batch, production date, and production location, facilitating quality traceability and recalls. Furthermore, consumers can use the SN code to verify the authenticity and legality of the product, ensuring they purchase genuine products. During the product warranty period, consumers can provide the SN code to apply for warranty service, and businesses can use the SN code to determine if the product is within the warranty period and provide corresponding after-sales support. Therefore, SN codes play a crucial role in the production, user use, and recycling / repair processes of electronic pens. Thus, it is essential to ensure that the SN code remains detectable and identifiable throughout the entire process from production to recycling.

[0069] In related technologies, serial number (SN) codes are typically laser-engraved onto the periphery of the pen body or the end face of the pen tail. However, due to collisions and friction during transportation and use, the SN codes laser-engraved on the periphery or end face of the pen body can easily wear down, ultimately making the SN codes difficult or even impossible to recognize. In other related technologies, the periphery of the pen body or the end face of the pen tail is also provided with grooves, and the SN codes are laser-engraved into these grooves. However, during transportation and use, foreign objects may fill the grooves, causing the SN codes to be covered or even corroded, ultimately making SN code recognition difficult or even impossible.

[0070] The applicant discovered that during transportation and use, the annular surface at the tip of the electronic pen hardly comes into contact with objects in the external environment. That is, the annular surface at the tip is not easily affected by friction. Therefore, the applicant considered laser-engraving the serial number (SN) onto this annular surface to solve the problem of the SN being easily worn away. However, in practice, the applicant found that due to the structural characteristics of the electronic pen itself, it is difficult to place it stably, and the area of ​​its annular surface is very small. This annular surface is circular, and during laser engraving, issues such as how to stably place the electronic pen for engraving and the concentricity of the laser engraving equipment and the annular surface need to be considered.

[0071] In view of this, please refer to Figures 1-12 This invention provides a laser engraving device 10, which can be used to engrave the serial number (SN) of an electronic pen 20. It should be noted that... (See also...) Figure 2The electronic pen 20 includes a pen tip and an annular surface 22 disposed on one side of the pen tip. The laser engraving device 10 includes an engraving device 200 and a positioning device 100. The engraving device 200 is capable of emitting an engraving laser 210. The positioning device 100 includes a fixing clamp 110, which is configured to hold the electronic pen 20, causing the electronic pen 20 to extend along a first direction X. The engraving device 200 and the positioning device 100 can be arranged sequentially along the first direction X. Specifically, the pen tip of the electronic pen 20, which is held in the fixing clamp 110, faces the engraving device 200, that is, the annular surface 22 faces the engraving device 200, so that the laser emitted by the engraving device 200 can radiate onto the annular surface 22, thereby forming an SN code on the annular surface 22. In one embodiment, the engraving device 200 and the positioning device 100 may not be arranged along the first direction X, as long as the engraving laser 210 emitted by the engraving device 200 can radiate onto the annular surface 22. In one embodiment, the engraving device 200 can adjust the angle and path of the engraving laser 210 so that the engraving laser 210 can radiate onto the annular surface 22. In another embodiment, the laser engraving device 10 may further include a laser adjustment device configured to focus the engraving laser 210 emitted by the engraving device 200 onto the annular surface 22. This focusing method may be through reflection or refraction, etc.

[0072] Please see Figure 1 and Figure 3 In some embodiments, the positioning device 100 further includes a positioning element 120 having an engraving hole 121 extending through the positioning element 120 along a first direction X. A fixing clamp 110 is configured to be driven to move, holding the electronic pen 20 and orienting it toward the positioning element 120. The fixing clamp 110 is driven to move such that one end of the pen tip 21 of the electronic pen 20 abuts against the positioning element 120, exposing the annular surface 22 to the engraving hole 121. The engraving device 200 emits an engraving laser 210, which radiates through the engraving hole 121 onto the annular surface 22, thereby forming an serial number (SN) code on the annular surface 22. The engraving device 200 can be directly positioned relative to the positioning element 120, thus the position of the engraving laser 210 relative to the positioning element 120 is unique. During the process of the fixing fixture 110 clamping the electronic pen 20 and positioning it on the positioning member 120, the position of the fixing fixture 110 on the positioning member 120 along the second direction Y is also unique. Therefore, after the electronic pen 20 is clamped on the fixing fixture 110 and positioned on the positioning member 120, the position of the engraving laser 210 relative to the electronic pen 20 can be uniquely determined. The setting of the positioning member 120 can effectively improve the positioning accuracy of the engraving laser 210 on the annular surface 22. At the same time, since it eliminates the process of the engraving device 200 repeatedly positioning the fixing fixture 110, the setting of the positioning member 120 can also effectively improve the laser engraving efficiency of the laser engraving equipment 10.

[0073] In some implementations, please refer to Figure 1 and Figure 10 The fixing fixture 110 includes a clamping part 111. The specific structure of the clamping part 111 can be a groove structure 112 resembling the shape of the electronic pen 20. This groove structure 112 extends along the first direction X, and the axis of the groove coincides with the axis of the engraving hole 121 (this coincidence is not strictly a perfect coincidence; the distance between the axis of the groove and the axis of the engraving hole 121 is considered coincident within the error range). The electronic pen 20 can be snapped into the groove structure 112 for positioning. Specifically, even if the fixing fixture 110 moves closer to or further away from the positioning member 120 along the first direction X, the axis of the groove always coincides with the axis of the engraving hole 121. Therefore, after the electronic pen 20 is installed in the groove structure 112, its position relative to the positioning member 120 is determined. After the electronic pen 20 is installed in the fixing fixture 110 and moves along the first direction X with the fixing fixture 110 to abut against the positioning member 120, SN code engraving can be performed. This effectively saves the 200 repetitive positioning process of the engraving device, thereby improving production efficiency and ensuring product consistency.

[0074] In some embodiments, to ensure the electronic pen 20 is stably held in the fixing clamp 110, the fixing clamp 110 further includes an adsorption member. This adsorption member provides an adsorption force to keep the electronic pen 20 mounted in the recessed structure 112 stationary relative to the recessed structure 112. In some embodiments, the adsorption member can be a magnetic structure that can be embedded in the recessed structure 112. When the electronic pen 20 is snapped into the recessed structure 112, the adsorption member provides an adsorption force to stably fasten the electronic pen 20 to the recessed structure 112, preventing the electronic pen 20 from moving within the recessed structure 112. In other embodiments, the adsorption member can also be a structure capable of generating negative pressure to achieve an adsorption effect, such as vacuum adsorption. Specifically, the inner wall of the recessed structure 112 can be provided with an adsorption port. After the electronic pen 20 is snapped into the recessed structure 112, the adsorption member extracts the air between the inner wall of the recessed structure 112 and the outer wall of the electronic pen 20 through the adsorption port, thereby allowing the electronic pen 20 to be stably fastened to the recessed structure 112 under atmospheric pressure.

[0075] In some embodiments, the laser engraving device 10 also includes a detection device. In one embodiment, this detection device can be used for positioning detection before laser engraving the SN code, that is, the detection device can be used to detect the position of the annular surface 22 relative to the engraving hole 121. If the center position of the annular surface 22 deviates from the center position of the engraving hole 121, the position of the electronic pen 20 relative to the engraving hole 121 can be adjusted by adjusting the installation position of the fixing fixture 110, further making the center position of the annular surface 22 as close as possible to the center position of the engraving hole 121. If the center position of the annular surface 22 coincides with the center position of the engraving hole 121 or is within the error range, the engraving device 200 can be started to laser engrave the SN code on the annular surface 22. The detection device can be a coordinate measuring machine, a laser interferometer, or an image measuring instrument, etc. The setting of the detection device can improve the positioning accuracy of the electronic pen 20, thereby improving the laser engraving quality of the SN code on the annular surface 22. The SN character detection after the SN code laser engraving is completed can be performed by other detection mechanisms.

[0076] In another embodiment, the detection device can be used to detect the SN character after the SN code laser engraving is completed. In this case, the detection device can be an image measuring instrument; for ease of explanation, the following description uses CCD vision detection as an example. Specifically, after the SN code laser engraving on the annular surface is completed, the detection device checks whether the character meets the requirements through the following steps:

[0077] Positioning: First, the detection device will position the annular surface 22 to determine the position of the SN character.

[0078] Measurement: After the position of the SN character is determined, the character is photographed by a CCD camera to obtain basic data such as the length and width of the character.

[0079] Recognition: The size corresponding to the SN character is calculated by the database and compared with the inherent data in the database to determine whether the size of the SN character is qualified.

[0080] Inspection: The equipment can also automatically detect whether there are certain fixed characteristics on the product. It calculates these characteristics based on a database and determines whether the inspected product is qualified based on whether these characteristics are the same as the existing characteristics.

[0081] The detection device allows for quality control of the SN code laser engraving on the electronic pen 20, improving production efficiency and ensuring product yield. Positioning detection prior to SN code laser engraving can be performed by other testing institutions.

[0082] In another embodiment, the detection device can be used for both positioning detection before laser engraving the SN code and for SN character detection after laser engraving is completed. For ease of explanation, the following description uses an example where the detection device can perform both positioning detection and character detection.

[0083] Please see Figure 5 and Figures 7 to 9 In one embodiment, the engraved hole 121 has a first portion 1211, a second portion 1212, and a third portion 1213 along a first direction X. The first portion 1211 is the end of the engraved hole 121 away from the electronic pen 20, the third portion 1213 is the end of the engraved hole 121 closer to the electronic pen 20, and the second portion 1212 is located between the first portion 1211 and the second portion 1212. For ease of description, the direction perpendicular to the first direction X is defined as the second direction Y. The size of the first portion 1211 in the second direction Y gradually increases along the direction from the third portion 1213 to the first portion 1211, so that sufficient light is provided inside the engraved hole 121 during positioning detection and character recognition, facilitating detection and recognition. The third part 1213 gradually increases in size in the second direction Y along the direction from the first part 1211 to the third part 1213, so that when the fixing clamp 110 is driven to move, one end of the pen tip 21 of the electronic pen 20 held by it can smoothly extend into the engraving hole 121. The shape of the engraving hole 121 located in the second part 1212 can be similar to one end of the pen tip 21 of the electronic pen 20, so that one end of the pen tip 21 of the electronic pen 20 can abut against the inner wall of the second part 1212, and the annular surface 22 can be exposed to the first part 1211, thereby realizing the positioning of the electronic pen 20.

[0084] Please see Figure 4 and Figure 6 In some embodiments, the positioning device 100 further includes a floating module 130 connected to the fixing fixture 110. The floating module 130 is configured to provide cushioning force as the electronic pen 20 moves with the fixing fixture 110 and abuts against the positioning member 120, preventing excessive interaction force between the electronic pen 20 and the positioning member 120 from causing damage to either. It should be noted that while this cushioning force can offset some of the interaction force between the electronic pen 20 and the positioning member 120, it does not cause the electronic pen 20 to detach from the positioning member 120.

[0085] In one embodiment, the floating module 130 is disposed on the side of the fixed clamp 110 opposite to the positioning member 120, and the floating module 130 is configured to move along the first direction X with the fixed clamp 110. Specifically, the end of the electronic pen 20 away from the pen tip 21 abuts against the floating module 130. During the movement of the fixed clamp 110 holding the electronic pen 20 towards the positioning member 120 along the first direction X, the floating module 130 remains stationary relative to the fixed clamp 110, that is, the floating module 130 moves synchronously with the fixed clamp 110. When the electronic pen 20 abuts against the positioning member 120, the positioning member 120 generates a force on the electronic pen 20 that is parallel to the first direction X, pointing from the positioning member 120 towards the fixed clamp 110. This force is transmitted through the electronic pen 20 and acts on the floating module 130, enabling the floating module 130 to move in the direction from the positioning member 120 towards the fixed clamp 110, thereby decomposing the force to achieve a buffering effect.

[0086] In another embodiment, the positioning device 100 further includes a connector, a floating module 130 disposed on the connector, and the floating module 130 is connectable to a fixing clamp 110. The fixing clamp 110 is capable of moving relative to the connector along a first direction X under the drive of the floating module 130. Specifically, as the fixing clamp 110 clamps the electronic pen 20 and moves along the first direction X toward the positioning member 120, the connector and the floating module 130 remain stationary relative to the fixing clamp 110, that is, the connector and the floating module 130 move synchronously with the fixing clamp 110. When the electronic pen 20 abuts against the positioning member 120, the positioning member 120 generates a force on the electronic pen 20 that is directed from the positioning member 120 toward the fixing clamp 110 and parallel to the first direction X. This force is transmitted through the electronic pen 20 to the fixing clamp 110, and then through the fixing clamp 110 to act on the floating module 130. Under the action of this force, the floating module 130 can drive the fixed clamp 110 to move relative to the connector along the first direction X, thereby decomposing the force to achieve a buffering effect.

[0087] In a specific embodiment, the connector has an opening at one end near the positioning member 120, and the connector has a cavity communicating with the opening. The floating module 130 may include a first component and a second component, wherein one end of the first component along a first direction X is connected to the second component, the first component is used to provide a buffering force, and the second component is connected to the fixing clamp 110. The first component is accommodated in the cavity, and the second component is at least partially accommodated in the cavity. The second component is configured to be able to move within the cavity along the first direction X under the drive of the first component. This allows the fixing clamp 110 connected to the second component to move relative to the connector along the first direction X, preventing excessive interaction force between the electronic pen 20 and the positioning member 120 from causing damage to the electronic pen 20 and the positioning member 120. In one embodiment, the first component may be a spring. In another embodiment, the first component may also be rubber. In yet another embodiment, the first component may also be a pneumatic or hydraulically driven structure. In yet another embodiment, the first component may also be a flexible, stretchable structure, etc.

[0088] In some embodiments, a floating module 130 is disposed on the side of the fixing clamp 110 opposite to the positioning member 120. The floating module 130 includes a fixing base 131, a floating member 132, and a support member 133. One end of the floating member 132 along a first direction X is connected to the fixing base 131, and the other end is connected to the support member 133. The end of the electronic pen 20 opposite to the annular surface 22 abuts against the side of the support member 133 opposite to the floating member 132. The floating member 132 is configured to drive the support member 133 to move along the first direction X, thereby allowing the electronic pen 20 abutting against the support member 133 to move along the first direction X with it. This prevents excessive interaction force between the electronic pen 20 and the positioning member 120 from causing damage to the electronic pen 20 and the positioning member 120. In one embodiment, the floating member 132 can be a spring. In another embodiment, the floating member 132 can also be rubber. In yet another embodiment, the floating member 132 can also be a pneumatically or hydraulically driven structure. In another embodiment, the floating element 132 may also be a flexible, stretchable structure, etc. In other embodiments, the floating element 132 may also be a magnetic field, through which the support 133 can float relative to the fixed base 131.

[0089] In this specific embodiment, for ease of description, a spring is used as the floating component 132 as an example. During the movement of the electronic pen 20 along the first direction X towards the positioning component 120, held by the fixing clamp 110, the floating module 130 moves synchronously with the fixing clamp 110 along the first direction X. When the electronic pen 20 comes into contact with the positioning component 120, the positioning component 120 exerts a force on the electronic pen 20, pointing from the positioning component 120 towards the fixing clamp 110 and parallel to the first direction X. This force is transmitted through the electronic pen 20 to the fixing clamp 110, and then through the fixing clamp 110 to act on the support component 133. Under the action of this force, the support component 133 presses against the floating component 132, causing the floating component 132 to contract under pressure. Thus, the support component 133 can move along the first direction X away from the positioning component 120 with the floating component 132. During this process, the elasticity of the floating component 132 itself can counteract the force generated between the electronic pen 20 and the positioning component 120, preventing excessive interaction force between the electronic pen 20 and the positioning component 120 from causing damage to the electronic pen 20 and the positioning component 120. At the same time, the floating component 132 itself has a tendency to move closer to the positioning component 120 (the spring has a tendency to return to its original shape after being compressed), which allows the electronic pen 20 to be tightly pressed against the positioning component 120 so that the engraving laser 210 can accurately radiate onto the annular surface 22.

[0090] Please see Figure 6 In some embodiments, the mounting base 131 has a receiving cavity 1311 with one open end, and this opening is located on the side of the mounting base 131 closer to the electronic pen 20. A floating member 132 is received in the receiving cavity 1311, and one end of the floating member 132 along a first direction X is connected to the mounting base 131, while the other end is connected to the support member 133. The support member 133 is configured to detachably cover the opening of the receiving cavity 1311 under the drive of the floating member 132, and the end of the electronic pen 20 away from the pen tip 21 abuts against the side of the support member 133 away from the floating member 132. The arrangement of the receiving cavity 1311 protects the floating member 132 from contact with other structures that could affect the floating of the support member 133.

[0091] To prevent the support member 133 from swaying in the second direction Y during the floating process relative to the fixed member, please refer to... Figure 6In some embodiments, the floating module 130 further includes a guide member 134. In one embodiment, one end of the guide member 134 along the first direction X is connected to the support member 133, the fixed base 131 has a guide hole 1312, and the guide member 134 is configured to move along the first direction X through the guide hole 1312. In another embodiment, one end of the guide member 134 along the first direction X is connected to the fixed base 131, the support member 133 has a guide hole 1312, and the guide member 134 is configured to move along the first direction X through the guide hole 1312. For ease of description, the following description uses the example of the guide member 134 being connected to the support member 133 along the first direction X. Specifically, after the fixing clamp 110 clamps the electronic pen 20 and moves it along the first direction X toward the positioning member 120 and abuts against the positioning member 120, the force generated between the positioning member 120 and the electronic pen 20 is transmitted through the electronic pen 20 and acts on the support member 133. The support member 133 then moves along the first direction X and away from the positioning member 120, and the guide member 134 also moves along the first direction X and away from the positioning member 120 within the guide hole 1312. During this process, the portion of the guide member 134 accommodated in the guide hole 1312 gradually increases. When the electronic pen 20 is removed from the fixing clamp 110, the floating member 132 moves along the first direction X toward the positioning member 120 to restore its initial shape. At this time, under the action of the floating member 132, the support member 133 moves along the first direction X toward the positioning member 120, and the guide member 134 also moves along the first direction X toward the positioning member 120 within the guide hole 1312. During this process, the portion of the guide member 134 accommodated in the guide hole 1312 gradually decreases. It should be noted that whether the floating member 132 is compressed and shrinking or returning to its original shape, at least a portion of the structure of the guide member 134 can be accommodated in the guide hole 1312. The arrangement of the guide member 134 and the guide hole 1312 prevents the support member 133 from wobbling relative to the fixed base 131, improving the positioning accuracy of the electronic pen 20 and thus improving the laser engraving quality of the SN code.

[0092] To enable the fixed clamp 110 to move under drive, in some embodiments, the positioning device 100 further includes a first motion unit 140. The fixed clamp 110 is connected to the first motion unit 140. In one embodiment, the first motion unit 140 is configured to drive the fixed clamp 110 to move along a first direction X so that the fixed clamp 110 can load and unload the electronic pen 20. Specifically, before the electronic pen 20 is installed in the fixed clamp 110, the first motion unit 140 drives the fixed clamp 110 to move away from the positioning member 120 along the first direction X to ensure sufficient space between the fixed clamp 110 and the positioning member 120 so that the electronic pen 20 can be installed in the fixed clamp 110. After the electronic pen 20 is installed, the first motion unit 140 drives the fixed clamp 110 to move towards the positioning member 120 along the first direction X so that the tip 21 of the electronic pen 20 can be positioned in the engraving hole 121, thereby ensuring the laser engraving quality of the SN code on the annular surface 22.

[0093] In another embodiment, the first motion unit 140 is configured to drive the fixing fixture 110 to move along the second direction Y, so as to facilitate the mounting and dismounting of the electronic pen 20. Specifically, before the electronic pen 20 is mounted on the fixing fixture 110, the first motion unit 140 drives the fixing fixture 110 to move along the second direction Y away from the engraving position (before this, the fixing fixture 110 can be driven away from the positioning member 120 along the first direction X by other motion units), so as to facilitate the mounting of the electronic pen 20 on the fixing fixture 110. After the electronic pen 20 is mounted, the first motion unit 140 drives the fixing fixture 110 to move along the second direction Y towards the engraving position, and then drives the fixing fixture 110 to move along the first direction X towards the positioning member 120 by other motion units. This ensures that the tip 21 of the electronic pen 20 can be positioned in the engraving hole 121, thereby ensuring the laser engraving quality of the SN code on the annular surface 22.

[0094] In another embodiment, the first motion unit 140 is configured to drive the fixing fixture 110 to move along a first direction X and a second direction Y. Specifically, before the electronic pen 20 is installed in the fixing fixture 110, the first motion unit 140 drives the fixing fixture 110 to move along the first direction X away from the positioning member 120, and also drives the fixing fixture 110 to move along the second direction Y away from the engraving position, so that there is sufficient space between the positioning member 120 and the fixing fixture 110 to facilitate the installation of the electronic pen 20 in the fixing fixture 110. After the electronic pen 20 is installed, the first motion unit 140 drives the fixing fixture 110 to move along the second direction Y towards the engraving position, and also drives the fixing fixture 110 to move along the first direction X towards the positioning member 120. This ensures that the tip 21 of the electronic pen 20 can be positioned in the engraving hole 121, thereby ensuring the laser engraving quality of the SN code on the annular surface 22.

[0095] Please see Figure 1 In some embodiments, the positioning device 100 further includes a second motion unit 150, and the first motion unit 140 includes a first connecting portion 141. The second motion unit 150 includes a driving portion 152 and a second connecting portion 151, the second connecting portion 151 being connected to the driving portion 152, and one end of the second connecting portion 151 away from the driving portion 152 being connected to the first connecting portion 141. The driving portion 152 is configured to drive the second connecting portion 151 to move along a second direction Y, and the second connecting portion 151 can drive the first connecting portion 141 to move under the drive of the driving portion 152. In some embodiments, the second connecting portion 151 can drive the first connecting portion 141 to move along a first direction X under the drive of the driving portion 152. In other embodiments, the second connecting portion 151 can drive the first connecting portion 141 to move along the second direction Y, thereby enabling the fixing clamp 110 to move along the second direction Y. In some other embodiments, the second connecting portion 151 can drive the first connecting portion 141 to move along the second direction Y and the first direction X, thereby enabling the fixing clamp 110 to move along the first direction X and the second direction Y, facilitating the loading and unloading of the electronic pen 20. For ease of description, the following explanation will use the example of the second connecting portion 151 driving the first connecting portion 141 to move along the first direction X.

[0096] In some embodiments, the first motion unit 140 is disposed along a first direction X, so that the fixing clamp 110 can move along the first direction X under the drive of the first motion unit 140. The second motion unit 150 is disposed along a second direction Y, and a second connecting portion 151 is connected to the first connecting portion 141 on the side of the second connecting portion 151 opposite to the drive portion 152 along the second direction Y. The drive portion 152 is disposed on the side of the second connecting portion 151 opposite to the first connecting portion 141 along the second direction Y. This facilitates the movement of the second connecting portion 151 along the second direction Y under the drive of the drive portion 152, thereby enabling the first connecting portion 141 to move along the first direction X. The first motion unit 140 and the second motion unit 150 are positioned in different directions. Compared to positioning both the first motion unit 140 and the second motion unit 150 in the first direction X, this avoids the positioning device 100 being too large in the first direction X, which could cause the fixing clamp 110 to vibrate and shake during movement along the first direction X, resulting in a deviation in the position of the positioning device 100 relative to the engraving device 200 and ultimately leading to poor laser engraving quality of the electronic pen 20SN code. In addition, this arrangement of the first motion unit 140 and the second motion unit 150 also helps to improve the space utilization of the laser engraving equipment 10.

[0097] Please see Figure 4In some embodiments, the first connecting portion 141 has a first surface 1411 connected to the second connecting portion 151, and the second connecting portion 151 has a second surface 1511 connected to the first connecting portion 141. The first surface 1411 and the second surface 1511 are configured as inclined surfaces that contact each other, and the dimension of the movement path from the inclined surfaces to the second motion unit 150 gradually decreases along the first direction X and the second direction Y. That is, the first connecting portion 141 and the second connecting portion 151 are configured as wedges that contact each other. When the second connecting portion 151 moves along the second direction Y in a direction away from the driving portion 152, the first connecting portion 141 can move along the first direction X in a direction closer to the positioning member 120 due to the thrust of the second connecting portion 151. When the second connecting portion 151 moves along the second direction Y in a direction closer to the driving portion 152, the first connecting portion 141 can move along the first direction X in a direction away from the positioning member 120. The second motion unit 150 converts the movement of the second connecting part 151 along the second direction Y into the movement of the first connecting part 141 along the first direction X, which facilitates the mounting and dismounting of the electronic pen 20 by the fixing fixture 110. That is, the fixing fixture 110 achieves the mounting and dismounting of the electronic pen 20 by moving along the first direction X. During this process, the dimension of the fixing fixture 110 relative to the engraving device 200 along the second direction Y remains unchanged, effectively ensuring the positional accuracy of the electronic pen 20 relative to the engraving device 200. This improves the quality of SN code laser engraving and also effectively increases the laser engraving efficiency of the laser engraving equipment 10 (eliminating the need for the engraving device 200 to repeatedly position the fixing fixture 110).

[0098] To reduce friction between the first connecting portion 141 and the second connecting portion 151 and reduce energy loss, in some embodiments, please refer to... Figure 1 The second connecting portion 151 is further provided with a roller 1512, which is configured to be driven to rotate about its axis. In one embodiment, the roller 1512 is disposed on the second surface 1511, and the highest point of the roller 1512 along the first direction X is slightly higher than the second surface 1511 so that the roller 1512 abuts against the first surface 1411. In another embodiment, the roller 1512 is disposed on both sides of the second connecting portion 151 perpendicular to the first direction X and the second direction Y, and the highest point of the roller 1512 along the first direction X is slightly higher than the second surface 1511 so that the roller 1512 can abut against the first surface 1411. For ease of description, the following description uses the example of the roller 1512 being disposed on both sides of the second connecting portion 151 perpendicular to the first direction X and the second direction Y.

[0099] When the second connecting portion 151 moves away from the driving portion 152 along the second direction Y under the drive of the driving portion 152, the roller 1512 rotates under the frictional force of the first surface 1411, and the first connecting portion 141 moves along the first direction X under the frictional force of the roller 1512 and the thrust of the second connecting portion 151. When the second connecting portion 151 moves towards the driving portion 152 along the second direction Y under the drive of the driving portion 152, the roller 1512 rotates in the opposite direction under the reverse frictional force of the first surface 1411, and the first connecting portion 141 moves away from the positioning member 120 along the first direction X. In other embodiments, the roller 1512 may also be disposed on the first connecting portion 141, and the roller 1512 abuts against the second surface 1511.

[0100] To ensure that the positions of the positioning member 120 and the fixing clamp 110 remain unchanged along the second direction Y, in some embodiments, please refer to [reference needed]. Figure 1 The positioning device 100 also includes a fixture plate 160. A positioning member 120 is connected to one end of the fixture plate 160 along a first direction X, and a fixing clamp 110 is disposed on the side of the fixture plate 160 arranged along a second direction Y. To enable the positioning device 100 to be mounted on the laser engraving equipment 10, in some embodiments, the positioning device 100 further includes a fixture base plate 170, which is disposed at the end of the fixture plate 160 away from the positioning member 120 along the first direction X. The fixture base plate 170 can be used to support the positioning device 100 and can be mounted on the laser engraving equipment 10.

[0101] It should be noted that, in some embodiments, to ensure that the first connecting part 141 can move smoothly along the first direction X away from the positioning member 120 after the electronic pen 20SN code engraving is completed, the first motion unit 140 also includes a telescopic member. In one embodiment, one end of the telescopic member along the first direction X can be connected to the first connecting part 141, and the other end can be connected to the fixture base plate 170 or the fixture upright plate 160. In another embodiment, one end of the telescopic member along the first direction X can also be connected to the fixed fixture, and the other end can be connected to the fixture base plate 170 or the fixture upright plate 160. For ease of description, the following description uses the example of one end of the telescopic member along the first direction X being connected to the first connecting part 141 and the other end being connected to the fixture upright plate 160. After the electronic pen 20SN code laser engraving is completed, the second connecting part 151 moves along the second direction Y towards the direction closer to the driving part 152 under the drive of the driving part 152, and the first connecting part 141 moves along the first direction X away from the positioning member 120 under the action of the telescopic member. The telescopic member can provide driving force for the movement of the first connecting portion 141 along the first direction X in a direction away from the positioning member 120. In other embodiments, the movement of the first motion unit 140 along the first direction X can also be achieved by a cylinder.

[0102] In some implementations, please refer to Figure 4 The floating module 130 can be integrated into the first connecting part 141.

[0103] In some implementations, please refer to Figure 11 The laser engraving equipment 10 also includes an equipment cabinet 400, a monitor 500, and a controller 600. The monitor 500 is located in the equipment cabinet 400, and the controller 600 is installed inside the equipment cabinet 400. The controller 600 can control the parameters of the engraving device 200, the detection device 300, the positioning device 100, and other structures to improve the working efficiency of the laser engraving equipment 10. The equipment cabinet 400 has a worktable 410, and the positioning device 100 is installed on the worktable 410. Both the engraving device 200 and the detection device 300 are installed on the worktable 410, and the engraving device 200 and the detection device 300 can move relative to the positioning device 100 for positioning. The laser engraving equipment 10 also includes casters 420 and feet 430. The casters 420 improve the mobility of the laser engraving equipment 10, facilitate changing the usage environment of the laser engraving equipment 10, and facilitate maintenance and repair operations, thereby improving maintenance and repair efficiency. The foot cup 430 helps reduce vibration and allows the laser engraving equipment 10 to be finely adjusted according to the flatness of the ground, ensuring that the laser engraving equipment 10 is placed horizontally, thereby improving the positioning accuracy of the laser engraving equipment 10.

[0104] A second aspect of the present invention also provides a laser engraving method, which employs an electronic pen 20 and a laser engraving device 10 combining any one or more of the above embodiments and examples. The laser engraving method includes the following steps:

[0105] Clamp the tip 21 of the electronic pen 20 onto the fixing fixture 110, and adjust the parameters of the laser engraving device 10. Start the engraving device 200 to emit an engraving laser 210 toward the annular surface 22. The engraving laser 210 radiates onto the annular surface 22 to form an SN code. Then turn off the engraving device 200 to stop emitting the engraving laser 210.

[0106] In some embodiments, the laser engraving device 10 includes a detection device, and the laser engraving method further includes the following steps before starting the engraving device 200:

[0107] The detection device is activated and detects the position of the annular surface 22 relative to the engraving device 200. If the positioning of the annular surface 22 is correct, proceed to the next step. If the positioning of the annular surface 22 is incorrect, adjust the relative position between the positioning device 100 and the engraving device 200.

[0108] In other embodiments, after the engraving device 200 is turned off, the laser engraving method further includes the following steps:

[0109] The detection device is activated and checks whether the engraved serial number (SN) meets the recognition requirements. If the SN meets the recognition requirements, the electronic pen 20 is removed from the fixture 110 and stored for further processing. If the SN does not meet the recognition requirements, the electronic pen 20 is removed and recycled.

[0110] In some embodiments, the positioning device 100 further includes a positioning element 120. After the electronic pen 20 is clamped in the fixing fixture 110, the laser engraving method further includes the following steps:

[0111] The fixing clamp 110 moves along the first direction X toward the positioning member 120. After the electronic pen 20 abuts against the positioning member 120 and the annular surface 22 is exposed in the engraving hole 121, the fixing clamp 110 stops moving and remains stable in that position.

[0112] After the serial number (SN) is laser-engraved, the laser engraving method also includes the following steps:

[0113] The fixing clamp 110 moves along the first direction X toward a direction away from the positioning member 120 so that the electronic pen 20 is disengaged from the positioning member 120. When the space between the fixing clamp 110 and the positioning member 120 is sufficient to allow the electronic pen 20 to be removed from the fixing clamp 110, the fixing clamp 110 stops moving and remains stable in that position.

[0114] In some embodiments, when the positioning device 100 further includes a first motion unit 140 and a second motion unit 150 (for ease of description, the following description will be based on the example that the first motion unit 140 includes a first connecting portion 141, the second motion unit 150 includes a second connecting portion 151 and a driving portion 152, and the second motion unit 150 moves along the second direction Y to drive the first motion unit 140 to move along the first direction X), before clamping the electronic pen 20 onto the fixing fixture 110, the laser engraving method further includes the following steps:

[0115] The second connecting part 151 moves along the second direction Y towards the direction closer to the driving part 152 under the drive of the driving part 152, so that the first connecting part 141 moves along the first direction X away from the positioning member 120 under the drive of the second connecting part 151, until the space between the fixing clamp 110 and the positioning member 120 is sufficient for installing the electronic pen 20.

[0116] After the electronic pen 20 is clamped in the fixing fixture 110, the laser engraving method further includes the following steps:

[0117] Driven by the driving part 152, the second connecting part 151 moves away from the driving part 152 along the second direction Y, so that the first connecting part 141 moves towards the positioning member 120 along the first direction X under the drive of the second connecting part 151, until the electronic pen 20 abuts against the positioning member 120 and the annular surface 22 is exposed in the engraving hole 121.

[0118] After the SN code is laser-engraved and the SN character is detected and recognized, the laser engraving method also includes the following steps:

[0119] Driven by the driving part 152, the second connecting part 151 moves along the second direction Y toward the driving part 152, so that the first connecting part 141 moves along the first direction X away from the positioning member 120 under the drive of the second connecting part 151, until the space between the fixing clamp 110 and the positioning member 120 is sufficient to remove the electronic pen 20. It should be noted that after this step, if it is necessary to continue to laser engrave the SN code of other electronic pens 20, the positioning device 100 remains unchanged in the state under this step. After the electronic pen 20 is clamped in the fixing clamp 110, the laser engraving equipment 10 operates according to the steps provided by the laser engraving method described above.

[0120] In some implementations, the specific instruction logic flow implemented by the laser engraving device 10 during operation is described in [reference needed]. Figure 12 First, the electronic pen 20 is installed on the positioning device 100, i.e., loading. After loading, the computer laser engraving software is opened. The computer displays serial port information, and the software sends A857 to the serial port. The serial port then sends MAC (Pulse Amplitude Modulation Control) information back to the software. The software receives and processes this information and sends the MAC to the MES interface to obtain Bluetooth SN information. After obtaining the SN information, the MES sends it back to the software. After receiving the SN information, the software sends it to the MES interface for GroupTest verification. After successful SN verification, the MES sends back the SN's station information. Then, the laser engraving device 10 performs CCD positioning on the electronic pen 20. After successful positioning, the engraving device 200 begins laser engraving. After laser engraving is completed, the detection device performs CCD recognition on the characters. The product passes through the MES interface WIPTEST station, and finally, it is unloaded. It should be noted that MES, GroupTest, and WIPTEST can be considered as detection signals, operation commands, detection interfaces, processing modules, etc.

[0121] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0122] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or," "and / or," or "and / or" throughout the text implies three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0123] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural transformations made using the contents of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of patent protection of the present invention.

Claims

1. A laser engraving device for engraving an SN code of an electronic pen, the electronic pen comprising a pen tip and an annular surface disposed on one side of the pen tip, characterized in that, The laser engraving equipment includes: The engraving device is configured to emit an engraving laser. A positioning device includes a fixing clamp configured to hold the electronic pen and extend the electronic pen along a first direction; The engraving laser is configured to radiate onto the annular surface and form the SN code on the annular surface. The positioning device further includes a positioning element with an engraving hole that penetrates the positioning element along the first direction. The fixing clamp holds the electronic pen and makes the annular surface face the positioning element. The fixing clamp can be driven to move so that the electronic pen abuts against the positioning element and exposes the annular surface to the engraving hole, so that the engraving laser can radiate onto the annular surface through the engraving hole and form the SN code on the annular surface. The engraved hole has a first part, a second part, and a third part along a first direction. The first part is the end of the engraved hole away from the electronic pen, the third part is the end of the engraved hole close to the electronic pen, and the second part is located between the first part and the second part. Wherein, the size of the first part in the second direction gradually increases along the direction from the third part to the first part, and the second direction is perpendicular to the first direction; The dimension of the third part in the second direction gradually increases along the direction from the first part to the third part.

2. The laser engraving apparatus of claim 1, wherein, Also includes: A detection device is used to detect the position of the annular surface relative to the engraved hole; And / or, The detection device is used to detect and identify the SN code.

3. The laser engraving equipment as described in claim 1, characterized in that, The positioning device further includes a floating module connected to the fixed clamp, the floating module being configured to provide cushioning force as the electronic pen comes into contact with the positioning element.

4. The laser engraving equipment as described in claim 3, characterized in that, The floating module is disposed on the side of the fixed clamp opposite to the positioning member; or, The positioning device further includes a connector, the floating module is disposed on the connector, and the floating module is also connected to the fixing clamp. The fixing clamp is capable of moving relative to the connector along the first direction under the drive of the floating module.

5. The laser engraving equipment as described in claim 3, characterized in that, The floating module includes a fixed base, a floating component, and a support component. One end of the floating component along the first direction is connected to the fixed base, and the other end is connected to the support component. The end of the electronic pen facing away from the annular surface abuts against the side of the support component facing away from the floating component. The floating component is configured to drive the support component to move along the first direction.

6. The laser engraving equipment as described in claim 5, characterized in that, The mounting base has a receiving cavity with one end open, the opening being located on the side of the mounting base along the first direction close to the electronic pen. The floating member is received in the receiving cavity, and one end of the floating member along the first direction is connected to the mounting base, and the other end is connected to the support member. The support member is configured to detachably cover the opening. Wherein, one end of the electronic pen away from the annular surface abuts against the side of the support member away from the floating member, and the floating member is configured to drive the support member to move along the first direction.

7. The laser engraving equipment as described in claim 5, characterized in that, The floating module further includes a guide member, one end of which is connected to the support member along the first direction. The fixed base has a guide hole, and the guide member is configured to move along the first direction through the guide hole.

8. The laser engraving equipment as described in claim 1, characterized in that, The positioning device further includes a first motion unit, and the fixing clamp is connected to the first motion unit. The first motion unit is configured to drive the fixing clamp to move along the first direction and / or the second direction so that the fixing clamp can load and unload the electronic pen. The second direction is perpendicular to the first direction.

9. The laser engraving equipment as described in claim 8, characterized in that, The first motion unit includes a first connecting portion; The positioning device further includes a second motion unit, which includes a driving part and a second connecting part. The second connecting part is connected to the driving part, and one end of the second connecting part away from the driving part is connected to the first connecting part. The driving part is configured to drive the second connecting part to move along the second direction. The second connecting portion is configured to drive the first motion unit to move along the first direction and / or along the second direction under the drive of the driving portion.

10. The laser engraving equipment as described in claim 9, characterized in that, The first connecting portion has a first surface connected to the second connecting portion, and the second connecting portion has a second surface connected to the first connecting portion. The first surface and the second surface are configured as inclined surfaces that contact each other. When the second connecting portion moves along the second direction under the drive of the driving portion, the first connecting portion moves along the first direction.

11. The laser engraving equipment as described in claim 9, characterized in that, The first connecting portion has a first surface connected to the second connecting portion. The second connecting portion further includes a roller configured to rotate about its axis. The second connecting portion moves in a second direction under the drive of the driving portion. The roller abuts against the first surface and rotates, causing the first connecting portion to move in the first direction; or... The second connecting portion has a second surface connected to the first connecting portion. The first connecting portion further includes a roller configured to rotate about its axis. The second connecting portion moves along the second direction under the drive of the driving portion. The roller abuts against the second surface and rotates, so that the first connecting portion moves along the first direction.

12. A method of laser engraving, characterized by, Including an electronic pen and the laser engraving device according to any one of claims 1-11, the laser engraving method includes the following steps: Take the electronic pen and clamp it in the fixing fixture, with the annular surface facing the engraving device; The engraving device is activated to emit the engraving laser, which radiates onto the annular surface to form the SN code.

Images