A waste material breaking method suitable for laser cutting nest

Abstract

A method and system for waste separation in laser cutting of sheet metal parts is disclosed. The method includes: S100. Determining the type of waste line to be activated based on the size of the sheet metal parts; S200. Generating target waste lines by setting parameters according to different preset rules based on the type of waste line activated; S300. Removing waste lines that do not meet the requirements from the generated target waste lines to obtain the final waste lines. Based on the positional relationship between the sheet metal parts and the final waste lines in S300, and on the basis of a preset part cutting sequence, all waste lines located around the parts are inserted before the part cutting sequence in a clockwise direction. This invention achieves separation of parts and waste, reasonable fragmentation of the waste frame, and avoids damage to parts; it ensures that parts are not cut, that parts are separated from the sheet metal, and that the sheet metal is fragmented as a whole without affecting subsequent sorting. It is suitable for fully automated production lines and can greatly improve the efficiency of subsequent automatic sorting.

Description

Technical Field

[0001] This invention relates to the field of laser cutting, and in particular to a waste material separation method suitable for laser cutting of bushings. Background Technology

[0002] Currently, common scrap handling methods involve generating scrap break lines in a grid around the part during nesting, based on pre-set scrap line intervals, and then inserting G-code at the beginning or end. However, this approach is overly idealistic, and actual production is often more complex. Because the scrap lines are pre-generated, and the common scrap generation rule is to cut the scrap lines together, whether before or after the part, any deformation or misalignment of the sheet metal can easily damage the part. This is particularly noticeable with sheet metal thicker than 10mm. Cutting thicker plates requires higher-power lasers, and the heat generated causes significant thermal deformation in localized areas. The deformation of the surrounding area after cutting can cause the pre- or post-cut scrap lines to intersect, thus cutting the part. Furthermore, the existing scrap line solution cannot handle the four-sided edges, still presenting sorting difficulties. Moreover, due to the bending of the steel plate itself and the stress release caused by the separation of the part from the sheet metal during cutting, small pieces of scrap are prone to lifting and hitting the cutting head. This can result in minor damage to the nozzle and protective lens, or even serious damage to the cutting head. All of these can lead to cutting stoppages and affect production efficiency.

[0003] Another approach is based on vision systems. This involves using software algorithms to temporarily add cutting trajectories to segment waste materials based on photos taken by a vision system. However, this approach has two drawbacks. First, vision systems are expensive, making them unsuitable for low- to mid-range cutting machines. Second, even segmenting just two parts requires repeated photo taking and calculations by the vision system, followed by verification and trajectory generation for insertion into the cutting program. This entire process takes at least two minutes, lengthening the production workflow and reducing efficiency. Summary of the Invention

[0004] In view of the above problems, the present invention is proposed to provide a waste separation method and system suitable for laser cutting kits that overcomes or at least partially solves the above problems.

[0005] To address the aforementioned technical problems, the embodiments of this application disclose the following technical solutions:

[0006] A method for separating waste material suitable for laser cutting of bushings, comprising:

[0007] S100. Determine the type of scrap line to be used based on the size of the components that make up the sheet metal;

[0008] S200. Based on the type of waste line to be started, parameters are set according to different preset rules to generate the target waste line;

[0009] S300. Filter the generated target waste lines, remove waste lines that do not meet the requirements, and obtain the final waste lines;

[0010] S400. Based on the positional relationship between the sheet metal parts and the final scrap line in S300, and on the basis of the preset part cutting sequence, all scrap lines located around the parts are inserted before the part cutting sequence in a clockwise order. Each scrap line can only be inserted once, so as to achieve alternating cutting of scrap lines and sheet metal parts.

[0011] Furthermore, in S100, the type of scrap line to be activated is determined according to the size of the components constituting the sheet metal. Specifically, when the size of the components constituting the sheet metal is greater than a preset threshold, the type of scrap line to be activated is a fixed-length scrap line. The fixed-length scrap line is a scrap line that runs through the entire sheet metal at fixed intervals.

[0012] Furthermore, in S100, the type of scrap line to be activated is determined according to the size of the component constituting the sheet metal. Specifically, when the size of the component constituting the sheet metal is not greater than a preset threshold, the type of scrap line to be activated is the endpoint scrap line. The endpoint scrap line is a scrap line that radiates outward from the endpoint of the component.

[0013] Furthermore, in S200, depending on the type of scrap line being started, parameters are set according to different preset rules to generate the target scrap line. When the scrap line type is a fixed-length scrap line, parameters are set according to preset rules, specifically including: setting the fixed interval of the horizontal and vertical scrap lines, setting the distance between the scrap line and the part, and setting the overcut length of the sheet metal; wherein, the fixed interval of the horizontal and vertical scrap lines is set to one-tenth of the sheet metal size; the distance between the scrap line and the part represents the interval of the kerf width between the scrap line and the edge of the part; the overcut length of the sheet metal represents the theoretical length of the sheet metal cut by the scrap line tool path on the edge of the sheet metal.

[0014] Furthermore, in S200, according to the type of scrap line started, parameters are set according to different preset rules to generate the target scrap line. When the scrap line type is the endpoint scrap line, the parameters are set according to the preset rules, specifically including: setting the distance between the scrap line and the part, and setting the overcut length of the plate; setting the distance between the scrap line and the part represents the interval of the kerf width between the scrap line and the edge of the part; the overcut length of the plate represents the theoretical length of the plate cut by the scrap line tool path on the edge of the plate.

[0015] Furthermore, the distance between the scrap line and the part is set to the tool radius compensation length plus 0.6mm; the overcut length of the sheet metal is set, specifically in the range of 5-10mm.

[0016] Furthermore, in S300, the generated target waste lines are filtered out. The filtering methods include at least: filtering overlapping lines, filtering waste line density, and filtering lines that exceed the upper limit of waste line length.

[0017] This invention also discloses a waste material separation system suitable for laser cutting of bushings, comprising: a waste line type determination unit, a target waste line generation unit, and a target waste line filtering unit; wherein:

[0018] The scrap line type determination unit is used to determine the type of scrap line to be used based on the size of the parts that make up the sheet metal.

[0019] The target waste line generation unit is used to generate the target waste line by setting parameters according to different preset rules based on the type of waste line being started.

[0020] The target waste line filtering unit is used to filter the generated target waste lines, remove waste lines that do not meet the requirements, and obtain the final waste lines.

[0021] The scrap line insertion unit is used to insert all the scrap lines located around the part in a clockwise direction before the part cutting sequence, based on the positional relationship between the sheet metal part and the final scrap line and the preset part cutting sequence. Each scrap line is inserted only once, so as to realize the alternating cutting of scrap lines and sheet metal parts.

[0022] Furthermore, the scrap line type determination unit is used to determine the type of scrap line to be used based on the size of the parts constituting the sheet metal; specifically, when the size of the parts constituting the sheet metal is greater than a preset threshold, the type of scrap line to be used is a fixed-length scrap line; wherein, the fixed-length scrap line is a scrap line that runs through the entire sheet metal at fixed intervals; when the size of the parts constituting the sheet metal is not greater than the preset threshold, the type of scrap line to be used is an endpoint scrap line; wherein, the endpoint scrap line is a scrap line that radiates outward from the endpoint of the part.

[0023] Furthermore, the target scrap line generation unit is used to generate a target scrap line by setting parameters according to different preset rules based on the type of scrap line being started. Specifically, this includes: when the scrap line type is an endpoint scrap line, setting parameters according to preset rules, specifically including: setting the distance between the scrap line and the part, setting the plate overcut length; setting the distance between the scrap line and the part represents the interval of the kerf width between the scrap line and the edge of the part; the plate overcut length represents the length of the theoretical plate cut by the scrap line tool path on the edge of the plate; when the scrap line type is a fixed-length scrap line, setting parameters according to preset rules, specifically including: setting a fixed interval between the horizontal and vertical scrap lines, setting the distance between the scrap line and the part, setting the plate overcut length; wherein, setting the fixed interval between the horizontal and vertical scrap lines is one-tenth of the plate size; setting the distance between the scrap line and the part represents the interval of the kerf width between the scrap line and the edge of the part; the plate overcut length represents the length of the theoretical plate cut by the scrap line tool path on the edge of the plate.

[0024] The beneficial effects of the above-described technical solutions provided in the embodiments of the present invention include at least the following:

[0025] This invention discloses a waste material separation method and system suitable for laser cutting of sheet metal parts. The method includes: S100. Determining the type of waste line to be used based on the size of the sheet metal parts; S200. Generating target waste lines by setting parameters according to different preset rules based on the type of waste line to be used; S300. Removing waste lines that do not meet the requirements from the generated target waste lines to obtain the final waste line; S400. Based on the positional relationship between the sheet metal parts and the final waste line in S300, and on the basis of a preset part cutting sequence, inserting all waste lines located around the parts in a clockwise direction before the part cutting sequence. Each waste line can only be inserted once, achieving alternating cutting of waste lines and sheet metal parts. This invention achieves separation of parts and waste, reasonable fragmentation of the waste frame, and avoids damage to parts. It ensures that parts are not cut, that parts are separated from the sheet metal, and that the sheet metal is fragmented as a whole without affecting subsequent sorting. It is suitable for fully automated production lines and can greatly improve the efficiency of subsequent automatic sorting.

[0026] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0027] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0028] Figure 1 This is a flowchart of a waste material separation method suitable for laser cutting of bushings in Embodiment 1 of the present invention;

[0029] Figure 2 This is a logic diagram of a waste material separation method applicable to laser cutting of bushings in Embodiment 1 of the present invention;

[0030] Figure 3 This is a diagram of the actual sheet metal used in the on-site production of large-size parts in Embodiment 1 of the present invention;

[0031] Figure 4 This is a diagram of the actual production sheet metal for small-sized parts in Embodiment 1 of the present invention. Detailed Implementation

[0032] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0033] To address the problems existing in the prior art, embodiments of the present invention provide a waste material separation method and system suitable for laser cutting of bushings.

[0034] Example 1

[0035] This embodiment discloses a waste material separation method suitable for laser cutting of bushings, such as... Figure 1 and 2 ,include:

[0036] S100. Determine the type of scrap line to be used based on the size of the parts that make up the sheet metal. Specifically, the scrap line, also known as the scrap cutting line, is the cutting line that cuts through the scrap area after removing the parts from a steel sheet. The scrap line consists of independent segments, typically less than 300mm in length, based on a set value. Cutting with the scrap line does not cause thermal deformation of the sheet metal. When cutting parts later, the thermal effect or stress state of the sheet metal is roughly similar to that when cutting with the scrap line, and the actual cutting coordinates of the parts are within an acceptable range.

[0037] In S100 of this embodiment, the type of scrap line to be activated is determined according to the size of the components constituting the sheet metal. Specifically, when the size of the components constituting the sheet metal is greater than a preset threshold, the type of scrap line to be activated is a fixed-length scrap line. The fixed-length scrap line is a scrap line that is set to pass through the entire sheet metal at fixed intervals.

[0038] For example, in Figure 3, the sheet metal can be seen to be composed of a reasonable distribution of large and medium-sized parts. Fixed-length scrap lines are more suitable for larger parts because larger parts have fewer endpoints, making it impossible to guarantee a sufficient number of scrap lines distributed across the entire size. In this case, adding fixed-length scrap lines to compensate for the insufficient quantity is very appropriate.

[0039] In some preferred embodiments, S100 determines the type of scrap line to be activated based on the size of the component constituting the sheet metal. Specifically, when the size of the component constituting the sheet metal is not greater than a preset threshold, the type of scrap line activated is an endpoint scrap line; wherein, an endpoint scrap line is a scrap line that radiates outwards from the endpoint of the component. For example... Figure 4 As you can see from the board, it is made up of densely packed small and medium-sized parts, with inlays and gap filling. Therefore, using end scrap lines on this board can achieve very good results.

[0040] S200. Based on the type of waste line to be started, parameters are set according to different preset rules to generate the target waste line;

[0041] Specifically, as shown in S100, when the scrap line type is a fixed-length scrap line, the parameters are set according to preset rules, including: setting the fixed interval of the horizontal and vertical scrap lines, setting the distance between the scrap line and the part, and setting the overcut length of the plate; wherein, the fixed interval of the horizontal and vertical scrap lines is set to one-tenth of the plate size; the distance between the scrap line and the part represents the interval of the kerf width between the scrap line and the edge of the part; the overcut length of the plate represents the theoretical length of the plate cut by the scrap line tool path on the edge of the plate.

[0042] When the scrap line type is the endpoint scrap line, the parameters are set according to the preset rules, specifically including: setting the distance between the scrap line and the part, and setting the overcut length of the plate; wherein, the fixed interval of the horizontal and vertical scrap lines is set to one-tenth of the plate size; the distance between the scrap line and the part represents the interval of the kerf width between the scrap line and the edge of the part; the overcut length of the plate represents the theoretical length of the plate cut by the scrap line tool path on the edge of the plate.

[0043] In this embodiment, after specifying the interval for the scrap line generation, for example, setting it to 500 in both the horizontal and vertical directions, the algorithm automatically generates segments of horizontal or vertical scrap lines based on this distance. These scrap lines avoid parts they pass through while maintaining a pre-set interval. This interval is used to compensate for tool offsets and prevent damage to parts. Unlike traditional algorithms, this embodiment allows customers to add overcut lengths, meaning the scrap line path along the board edge can cut beyond the theoretical board size. This is because the actual board size generated by the customer is often larger than the size set in the software. Furthermore, when cutting scrap lines exceeding the board size, to prevent the cutting head from failing to sense the board and causing it to fall out, the excess portion is cut at a fixed height by enabling the follow-off function.

[0044] In this embodiment, the distance between the scrap line and the part represents a gap where the scrap line cannot completely meet the edge of the part, leaving a kerf width. This ensures that the laser cuts the scrap line precisely without damaging the part; preferably, it is set to a tool compensation of +0.6. This embodiment also requires setting the overcut length of the sheet metal, because sheet metal dimensions are often large. If the frame scrap line is cut according to the set sheet metal value, it often cannot completely cut the part. Therefore, an overcut line is needed to ensure complete separation of the sheet metal. The parameter can be set according to requirements, preferably 5-10mm.

[0045] S300. The generated target waste lines are filtered out, and waste lines that do not meet the requirements are removed to obtain the final waste lines. Specifically, in S300 of this embodiment, the generated target waste lines are filtered out, and the filtering method includes at least: filtering overlapping lines, filtering waste line density, and filtering lines that exceed the upper limit of waste line length.

[0046] S400. Based on the positional relationship between the sheet metal parts and the final scrap line in S300, and on the basis of the preset part cutting sequence, all scrap lines located around the parts are inserted before the part cutting sequence in a clockwise direction. Each scrap line is inserted only once, so as to achieve alternating cutting of scrap lines and sheet metal parts.

[0047] In S400 of this embodiment, all scrap lines located around the part are inserted before the part cutting sequence in a clockwise order. Each scrap line can only be inserted once. This allows for alternating cutting of the scrap lines and the sheet metal part. The clockwise cutting method is to minimize the distance the cutting head travels when frequently cutting scrap. Furthermore, to ensure that the cutting of the scrap lines does not affect the part, a T-shaped cutting method is used. This method involves making a hole 5mm from the perpendicular bisector of the scrap line, cutting to the midpoint of the scrap line, then returning to the original starting point of the scrap line, and then cutting to the end point of the scrap line, without adding tool compensation. The T-shaped scrap line cutting method ensures that the cutting trajectory does not contact the part, thereby reducing the possibility of cutting the part. Prioritizing cutting the scrap lines around the part largely avoids thermal deformation, and the unique T-shaped scrap cutting method of this invention further avoids damaging the part.

[0048] This embodiment discloses a waste material separation method suitable for laser cutting of sheet metal parts, including: S100. Determining the type of waste line to be activated based on the size of the sheet metal parts; S200. Generating target waste lines by setting parameters according to different preset rules based on the type of waste line activated; S300. Removing waste lines that do not meet the requirements from the generated target waste lines to obtain the final waste line; S400. Based on the positional relationship between the sheet metal parts and the final waste line in S300, and on the basis of the preset part cutting sequence, inserting all waste lines located around the parts in a clockwise direction before the part cutting sequence, wherein each waste line is inserted only once, realizing the alternating cutting of waste lines and sheet metal parts. This invention achieves the separation of parts and waste materials, reasonable fragmentation of the waste material frame, and avoids damage to parts; it ensures that parts are not cut, that parts are separated from sheet metal, and that the sheet metal is fragmented as a whole without affecting subsequent sorting. It is suitable for fully automated production lines and can greatly improve the efficiency of subsequent automatic sorting.

[0049] Example 2

[0050] Based on the waste material separation method for laser cutting kits in Embodiment 1, this embodiment discloses a waste material separation system for laser cutting kits, including: a waste line type determination unit, a target waste line generation unit, and a target waste line filtering unit; wherein:

[0051] The scrap line type determination unit is used to determine the type of scrap line to be used based on the size of the parts that make up the sheet metal.

[0052] The scrap line type determination unit is used to determine the type of scrap line to be used based on the size of the parts constituting the sheet metal. Specifically, when the size of the parts constituting the sheet metal is greater than a preset threshold, the type of scrap line to be used is a fixed-length scrap line. The fixed-length scrap line is a scrap line that runs through the entire sheet metal at fixed intervals. When the size of the parts constituting the sheet metal is not greater than the preset threshold, the type of scrap line to be used is an endpoint scrap line. The endpoint scrap line is a scrap line that radiates outward from the endpoint of the part.

[0053] The target waste line generation unit is used to generate the target waste line by setting parameters according to different preset rules based on the type of waste line being started.

[0054] The target scrap line generation unit is used to generate target scrap lines by setting parameters according to different preset rules based on the type of scrap line being started. Specifically, when the scrap line type is an endpoint scrap line, parameters are set according to preset rules, including: setting the distance between the scrap line and the part, and setting the overcut length of the sheet metal; the distance between the scrap line and the part represents the interval of the kerf width between the scrap line and the edge of the part; the overcut length of the sheet metal represents the theoretical length of the sheet metal cut by the scrap line tool path on the edge of the sheet metal. When the scrap line type is a fixed-length scrap line, parameters are set according to preset rules, including: setting a fixed interval between the horizontal and vertical scrap lines, setting the distance between the scrap line and the part, and setting the overcut length of the sheet metal; wherein, the fixed interval between the horizontal and vertical scrap lines is set to one-tenth of the sheet metal size; the distance between the scrap line and the part represents the interval of the kerf width between the scrap line and the edge of the part; the overcut length of the sheet metal represents the theoretical length of the sheet metal cut by the scrap line tool path on the edge of the sheet metal.

[0055] The target waste line filtering unit is used to filter the generated target waste lines, removing those that do not meet the requirements, and obtaining the final waste lines. The target waste line filtering unit filters the generated target waste lines using methods including at least: filtering overlapping lines, filtering waste line density, and filtering lines exceeding the upper limit of waste line length.

[0056] The scrap line insertion unit is used to insert all the scrap lines located around the part in a clockwise direction before the part cutting sequence, based on the positional relationship between the sheet metal part and the final scrap line and the preset part cutting sequence. Each scrap line is inserted only once, so as to realize the alternating cutting of scrap lines and sheet metal parts.

[0057] A waste material separation system suitable for laser cutting of sheet metal includes: a waste line type determination unit, a target waste line generation unit, and a target waste line rejection unit. The waste line type determination unit determines the type of waste line to be used based on the size of the parts constituting the sheet metal. The target waste line generation unit generates target waste lines by setting parameters according to different preset rules based on the type of waste line to be used. The target waste line rejection unit rejects the generated target waste lines, eliminating those that do not meet the requirements, and obtaining the final waste line. This embodiment achieves separation of parts and waste material, and the waste frame is rationally shredded while avoiding damage to parts. It ensures that parts are not cut, that parts are separated from the sheet metal, and that the sheet metal is shredded as a whole without affecting subsequent sorting. It is suitable for fully automated production lines and can greatly improve the efficiency of subsequent automatic sorting.

[0058] It should be understood that the specific order or hierarchy of steps in the disclosed process is an example of an exemplary method. Based on design preferences, it should be understood that the specific order or hierarchy of steps in the process may be rearranged without departing from the scope of this disclosure. The appended method claims provide elements of various steps in an exemplary order and are not intended to limit the scope to the specific order or hierarchy described.

[0059] In the detailed description above, various features are combined together in a single embodiment to simplify this disclosure. This approach to disclosure should not be construed as reflecting an intention that embodiments of the claimed subject matter require more features than are explicitly stated in each claim. Rather, as reflected in the appended claims, the invention is presented with fewer features than all of the features in a single disclosed embodiment. Therefore, the appended claims are hereby explicitly incorporated into the detailed description, with each claim representing a separate preferred embodiment of the invention.

[0060] Those skilled in the art will also understand that the various illustrative logic blocks, modules, circuits, and algorithm steps described in conjunction with the embodiments herein can be implemented as electronic hardware, computer software, or a combination thereof. To clearly illustrate the interchangeability between hardware and software, the various illustrative components, blocks, modules, circuits, and steps described above are generally described in terms of their functionality. Whether such functionality is implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system. Those skilled in the art can implement the described functionality in alternative ways for each specific application; however, such implementation decisions should not be construed as departing from the scope of this disclosure.

[0061] The steps of the methods or algorithms described in conjunction with the embodiments herein can be directly embodied in hardware, software modules executed by a processor, or a combination thereof. The software modules can reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disks, removable disks, CD-ROMs, or any other form of storage medium well known in the art. An exemplary storage medium is connected to the processor, enabling the processor to read information from and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and storage medium can reside in an ASIC. The ASIC can reside in a user terminal. Alternatively, the processor and storage medium can exist as discrete components in the user terminal.

[0062] For software implementation, the techniques described in this application can be implemented using modules (e.g., procedures, functions, etc.) that perform the functions described in this application. This software code can be stored in memory units and executed by a processor. The memory units can be implemented within the processor or outside the processor; in the latter case, they are communicatively coupled to the processor via various means, as is well known in the art.

[0063] The foregoing description includes examples of one or more embodiments. It is certainly impossible to describe all possible combinations of components or methods in order to describe the above embodiments, but those skilled in the art will recognize that further combinations and arrangements of the various embodiments are possible. Therefore, the embodiments described herein are intended to cover all such changes, modifications, and variations that fall within the scope of the appended claims. Furthermore, the term "comprising" as used in the specification or claims is interpreted in a manner similar to the term "including," as interpreted when used as a conjunction in the claims. Additionally, the use of any term "or" in the specification of the claims is intended to mean "non-exclusive or."

Claims

1. A method for separating waste material suitable for laser cutting of bushings, characterized in that, include: S100. Determine the type of scrap line to be activated based on the size of the components constituting the sheet metal; S100, determining the type of scrap line to be activated based on the size of the components constituting the sheet metal specifically includes: when the size of the components constituting the sheet metal is greater than a preset threshold, the type of scrap line to be activated is a fixed-length scrap line; wherein, the fixed-length scrap line is a scrap line that is set by passing through the entire sheet metal at fixed intervals on the sheet metal. In S100, the type of scrap line to be activated is determined according to the size of the parts constituting the sheet metal. Specifically, when the size of the parts constituting the sheet metal is not greater than a preset threshold, the type of scrap line to be activated is the endpoint scrap line. The endpoint scrap line is a scrap line that radiates outward from the endpoint of the part. S200. Based on the type of scrap line used, parameters are set according to different preset rules to generate the target scrap line. In S200, based on the type of scrap line used, parameters are set according to different preset rules to generate the target scrap line. When the scrap line type is a fixed-length scrap line, parameters are set according to preset rules, specifically including: setting fixed intervals for horizontal and vertical scrap lines, setting the distance between the scrap line and the part, and setting the overcut length of the sheet metal. Among these, the fixed interval for horizontal and vertical scrap lines is set to one-tenth of the sheet metal size; the distance between the scrap line and the part represents the interval of the kerf width between the scrap line and the edge of the part; the overcut length of the sheet metal represents the theoretical length of the sheet metal cut by the scrap line tool path on the edge of the sheet metal. In S200, depending on the type of scrap line used, parameters are set according to different preset rules to generate the target scrap line. When the scrap line type is the endpoint scrap line, the parameters are set according to preset rules, specifically including: setting the distance between the scrap line and the part, and setting the overcut length of the sheet metal; setting the distance between the scrap line and the part represents the interval of the kerf width between the scrap line and the edge of the part; the overcut length of the sheet metal represents the theoretical length of the sheet metal cut by the scrap line tool path at the edge of the sheet metal. S300. Screen the generated target waste lines, remove waste lines that do not meet the requirements, and obtain the final waste lines; S400. Based on the positional relationship between the sheet metal parts and the final scrap line in S300, and on the basis of the preset part cutting sequence, all scrap lines located around the parts are inserted before the part cutting sequence in a clockwise direction. Each scrap line is inserted only once, so as to achieve alternating cutting of scrap lines and sheet metal parts.

2. The waste material separation method for laser cutting kits as described in claim 1, characterized in that, Set the distance between the scrap line and the part, specifically the tool radius compensation length plus 0.6mm; set the overcut length of the sheet metal, specifically within the range of 5-10mm.

3. The waste material separation method for laser cutting kits as described in claim 1, characterized in that, In S300, the generated target waste lines are screened. The screening methods include at least: filtering overlapping lines, screening waste line density, and filtering lines that exceed the upper limit of waste line length.

4. A waste material separation system suitable for laser cutting of bushings, characterized in that, include: The system includes a waste line type determination unit, a target waste line generation unit, and a target waste line screening unit; among which: The scrap line type determination unit is used to determine the type of scrap line to be used based on the size of the parts constituting the sheet metal. Specifically, it includes: when the size of the parts constituting the sheet metal is greater than a preset threshold, the type of scrap line to be used is a fixed-length scrap line; wherein, a fixed-length scrap line is a scrap line that runs through the entire sheet metal at fixed intervals; when the size of the parts constituting the sheet metal is not greater than the preset threshold, the type of scrap line to be used is an endpoint scrap line; wherein, an endpoint scrap line is a scrap line that radiates outward from the endpoint of the part. The target scrap line generation unit is used to generate target scrap lines by setting parameters according to different preset rules based on the type of scrap line being used. Specifically, when the scrap line type is an endpoint scrap line, parameters are set according to preset rules, including: setting the distance between the scrap line and the part, and setting the overcut length of the sheet metal; the distance between the scrap line and the part represents the interval of the kerf width between the scrap line and the edge of the part; the overcut length of the sheet metal represents the theoretical length of the sheet metal cut by the scrap line toolpath at the edge of the sheet metal. When the scrap line type is a fixed-length scrap line, parameters are set according to preset rules, including: setting a fixed interval between the horizontal and vertical scrap lines, setting the distance between the scrap line and the part, and setting the overcut length of the sheet metal; wherein, the fixed interval between the horizontal and vertical scrap lines is set to one-tenth of the sheet metal size; the distance between the scrap line and the part represents the interval of the kerf width between the scrap line and the edge of the part; the overcut length of the sheet metal represents the theoretical length of the sheet metal cut by the scrap line toolpath at the edge of the sheet metal. The target waste line screening unit is used to screen the generated target waste lines, remove waste lines that do not meet the requirements, and obtain the final waste lines; The scrap line insertion unit is used to insert all the scrap lines located around the part in a clockwise direction before the part cutting sequence, based on the positional relationship between the sheet metal part and the final scrap line and the preset part cutting sequence. Each scrap line is inserted only once, so as to realize the alternating cutting of scrap lines and sheet metal parts.

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