Laser cutting device, replaceable laser module, control system and method

Abstract

The present invention provides a laser cutting device, a replaceable laser component, a control system and a method. The laser cutting device includes: a vertical base, on which a jig base assembly is provided, and a laser mechanism is provided on the jig base assembly. The laser mechanism includes a moving mechanism, a laser fixing base provided on the moving mechanism, a three-dimensional scanner and a laser mounting assembly are provided at the lower part of the laser fixing base, and the laser mounting assembly is used for mounting different replaceable laser components. A driving mechanism for driving the laser mounting assembly to rotate is provided on the laser fixing base. A control system is connected to the three-dimensional scanner, the driving mechanism and the moving mechanism. Compared with the traditional technology, the present application does not need to set a processing program for the workpiece, and it can construct a corresponding processing control program by constructing a three-dimensional model of the workpiece.

Description

Technical Field

[0001] The present invention relates to the technical field of laser cutting devices, and specifically to a laser cutting device, a replaceable laser component, and a control system and method therefor. Background Art

[0002] A laser cutting device is a special device for cutting the surface of workpieces, cutting pipe grooves, etc. It has the characteristics of high precision and multi-degree-of-freedom rotation, and can complete the cutting process of any workpiece.

[0003] Currently, the control program of the laser cutting device is set according to the product. That is to say, it can only process the set product. For other workpieces, the program needs to be reset for processing. Summary of the Invention

[0004] In view of this, the main object of the present invention is to provide a laser cutting device, a replaceable laser component, and a control system and method therefor.

[0005] The technical solution adopted by the present invention is as follows:

[0006] On the one hand, the present invention provides a laser cutting device, including:

[0007] A vertical base, on which a fixture base assembly is provided, and a laser mechanism is provided on the fixture base assembly;

[0008] Among them, the laser mechanism includes a moving mechanism, a laser fixing seat provided on the moving mechanism, a three-dimensional scanner and a laser mounting assembly are provided at the lower part of the laser fixing seat, and the laser mounting assembly is used to mount different replaceable laser components;

[0009] A driving mechanism for driving the laser mounting assembly to rotate is provided on the laser fixing seat;

[0010] A control system, connected to the three-dimensional scanner, the driving mechanism, and the moving mechanism;

[0011] The control system has:

[0012] A processing module, connected to the three-dimensional scanner, the processing module is used to obtain the surface profile of the workpiece collected by the three-dimensional scanner, and construct a three-dimensional model of the workpiece according to the surface profile of the workpiece;

[0013] A configuration module, setting the laser path of the workpiece based on the three-dimensional model of the workpiece, and correspondingly forming a control instruction for controlling the laser to process the workpiece based on the laser path;

[0014] The control module controls the movement of the moving mechanism, the end-face rotation of the workpiece by the fixture seat assembly, and at least two of the driving mechanisms to control the laser to process the workpiece along a set laser path.

[0015] Further, setting the laser path of the workpiece based on the three-dimensional model of the workpiece specifically includes:

[0016] Identifying the three-dimensional model of the workpiece to obtain whether there is a preset feature. If there is a preset feature, the position where the preset feature is located is used as a reference point;

[0017] Using the reference point to divide the three-dimensional model of the workpiece into multiple equally-angled sectors, recording the position of each sector; obtaining at least one of the sectors, constructing a number of symmetric process lines along the two side surfaces of the sector; after reversing the values of the process lines at different heights, it is used as the setting of the first laser cutting depth; at the same time, the distance between two adjacent process lines at different heights is used as the first laser cutting length, and at least one of the process lines is used as the starting point, and the adjacent process line is used as the end point to set the first cutting path of the laser;

[0018] A number of end-face reference lines perpendicular to the process lines are arranged along the end face of the sector. After reversing the values of the end-face reference lines with different lengths, it is used as the setting of the second laser cutting depth; at the same time, the distance between two adjacent process lines with different lengths is used as the second laser cutting length, and at least one of the end-face reference lines is used as the starting point, and the adjacent end-face reference line is used as the end point to set the second cutting path of the laser.

[0019] Further, the fixture seat assembly includes:

[0020] A fixture plate, with a chute provided at the bottom of the fixture plate, and the chute is used to be fixedly matched with the slide rail provided at the lower part of the fixture plate;

[0021] A fixture base, provided on the upper part of the fixture plate. Mounting seats are provided on both sides of the fixture base, and a fixture fixing seat is provided in the middle part of the fixture base. A number of through holes are provided on the fixture fixing seat, and the fixture fixing seat is used to fix the workpiece in the through holes to achieve the purpose of fixing the workpiece;

[0022] A left fixing frame and a right fixing frame are respectively provided on both sides of the fixture plate, and a left bearing seat and a right bearing seat are respectively provided in the left fixing frame and the right fixing frame; a left connecting shaft and a right connecting shaft are respectively provided in the left bearing seat and the right bearing seat, wherein the left connecting shaft and the right connecting shaft are respectively fixed in the mounting seats;

[0023] Among them, a margin section is provided after the left connecting shaft passes through the left bearing housing to the left, and a first gear is arranged on the margin section; a motor base is arranged on the mounting base at the left end, a jig motor is arranged on the motor base, a second gear is arranged on the motor shaft of the jig motor, the second gear meshes with the first gear, the jig motor drives the second gear to rotate, the second gear drives the first gear to rotate, the first gear drives the left connecting shaft to rotate, and the left connecting shaft drives the jig base to rotate to adjust the position of the workpiece.

[0024] Further, the moving mechanism includes:

[0025] A transverse substrate arranged on the upper part of the vertical base, two parallel transverse slide rails are arranged on the transverse substrate, a transverse base is arranged on the upper part of the transverse slide rails, and a transverse chute matching the transverse slide rails is arranged on the lower part of the transverse base;

[0026] A moving motor fixing seat is arranged at the middle part of the transverse substrate and on the upper edge of the transverse substrate, a moving motor is arranged on the moving motor fixing seat, a transverse driving wheel is arranged on the motor shaft of the moving motor, a left driven wheel and a right driven wheel are respectively arranged on both sides of the upper transverse slide rail, a transverse measuring driven wheel is arranged in the middle of the transverse base, and a transverse angle sensor is embedded in the transverse measuring driven wheel;

[0027] A transverse transmission line, the right end of the right side is fixed on the right end face of the right side of the transverse substrate, and successively bypasses the transverse measuring driven wheel, the right driven wheel, the transverse driving wheel, the left driven wheel, and then bypasses the transverse measuring driven wheel again and is fixed on the left end face of the left side of the transverse substrate;

[0028] A longitudinal substrate perpendicular to the transverse substrate is arranged on the transverse substrate, parallel longitudinal slide rails are arranged on the longitudinal substrate, a longitudinal base is arranged on the longitudinal slide rails, and a longitudinal chute matching the longitudinal slide rails is arranged on the lower part of the longitudinal base;

[0029] A longitudinal motor seat is arranged on the right side of the longitudinal substrate, a longitudinal motor is arranged on the longitudinal motor seat, and a longitudinal driving wheel is arranged on the motor shaft of the longitudinal motor;

[0030] A front driven wheel and a rear driven wheel are arranged at the front and rear ends of the right longitudinal slide rail, a longitudinal measuring driven wheel is arranged on the longitudinal base, and a longitudinal angle sensor is embedded in the longitudinal measuring driven wheel;

[0031] A longitudinal transmission line, the front end of the front side is fixed on the front side end face of the front side of the longitudinal substrate, and successively bypasses the longitudinal measuring driven wheel, the front driven wheel, the longitudinal driving wheel, the rear driven wheel, and then bypasses the longitudinal measuring driven wheel again and is fixed on the rear side end face of the rear side of the longitudinal substrate.

[0032] On both sides of the longitudinal base, it passes through the longitudinal substrate, and a laser installation component is arranged at the lower part of the longitudinal base.

[0033] Furthermore, the laser installation component includes: a laser head seat;

[0034] A rotating bearing seat is embedded in the laser head seat. A rotating shaft is arranged in the rotating bearing seat, and a rotating shaft driven wheel is arranged above the rotating shaft.

[0035] Below the rotating shaft and at the lower part of the laser head seat, a laser docking component is arranged. On one side of the laser docking component, a 3D scanner is arranged. Among them, the 3D scanner is arranged at the lower part of the laser head seat.

[0036] The laser docking component has a docking head seat, and a laser component card slot is arranged in the docking head seat. Among them, the laser component card slot is roughly in an inverted V shape, and a buckle component is arranged at the opening position of the laser component card slot.

[0037] The buckle component includes: a card slot is arranged near the opening of the laser component card slot, and a spring and a buckle are arranged in the card slot.

[0038] Furthermore, the driving mechanism includes:

[0039] A driving motor mounting plate is fixed on one side of the laser head seat. A driving motor is arranged at the lower part of the driving motor mounting plate. The motor shaft of the driving motor passes through the driving motor mounting plate, and a driving wheel is arranged on the motor shaft. The driving wheel is connected to the rotating shaft driven wheel through a belt.

[0040] On the other hand, the present application provides a replaceable laser component, which is applied to the above-mentioned laser cutting device, and the replaceable laser component is used to be installed on the laser docking component;

[0041] Among them, the replaceable laser component has:

[0042] A docking part, the docking part includes a docking plug rod, and a docking shell is arranged outside the docking plug rod. A docking groove is formed between the docking shell and the docking plug rod.

[0043] A docking port is arranged on the docking plug rod. Among them, the docking head seat is installed in the docking groove, and the laser component card slot and the docking plug rod form a matching fixation. The docking port is used for matching installation with the buckle.

[0044] When the driving mechanism drives the rotating shaft driven wheel to rotate, the rotating shaft driven wheel drives the rotating shaft to rotate, and the rotating shaft drives the docking plug rod to rotate through the laser docking component.

[0045] Furthermore, the lower part of the docking plug rod is used for connection with the laser;

[0046] Or it is connected to a laser through a right-angle mechanism to form a right-angle laser;

[0047] Among them, the right-angle mechanism includes a first connecting sleeve provided on the docking plug rod. The docking plug rod is connected to a first bevel gear through the first connecting sleeve, and the first bevel gear meshes with a second bevel gear;

[0048] The second bevel gear is installed in a second connecting sleeve, and the second connecting sleeve is connected to the laser.

[0049] On the other hand, the present application also provides a control system, including:

[0050] A processing module, connected to the 3D scanner, for obtaining the surface profile of the workpiece collected by the 3D scanner and constructing a 3D model of the workpiece according to the surface profile of the workpiece;

[0051] A configuration module, setting the laser path of the workpiece based on the 3D model of the workpiece, and correspondingly forming a control instruction for controlling the laser to process the workpiece based on the laser path;

[0052] A control module, controlling the movement of the moving mechanism, the end-face rotation of the workpiece by the fixture seat assembly, and at least two of the driving mechanisms based on the control instruction to control the laser to process the workpiece along the set laser path;

[0053] Among them, setting the laser path of the workpiece based on the 3D model of the workpiece specifically includes:

[0054] Identifying the 3D model of the workpiece to obtain whether there is a preset feature. If there is a preset feature, using the position where the preset feature is located as a reference point;

[0055] Dividing the 3D model of the workpiece into a plurality of equally angled sectors with the reference point, and recording the position of each sector; obtaining at least one of the sectors, constructing a number of symmetric process lines along the two sides of the sector; after reversing the values of the process lines at different heights, using them as the first laser cutting depth setting; at the same time, using the distance between two adjacent process lines at different heights as the first laser cutting length, and at least using one of the process lines as a starting point and the adjacent process line as an ending point to set the first cutting path of the laser;

[0056] A number of end-face reference lines perpendicular to the process lines are provided along the end face of the sector. After reversing the values of the end-face reference lines with different lengths, using them as the second laser cutting depth setting; at the same time, using the distance between two adjacent process lines with different lengths as the second laser cutting length, and at least using one of the end-face reference lines as a starting point and the adjacent end-face reference line as an ending point to set the second cutting path of the laser.

[0057] On the other hand, the present application also provides a control method, which is applied to the above-mentioned control system and includes the following steps:

[0058] Obtain the control instructions issued by the control system, decompose the control instructions according to the corresponding sector positions into several instruction units, and each instruction unit forms an instruction set for controlling the laser to process the workpiece according to the set laser path;

[0059] Among them, the instruction set at least includes an instruction for controlling the movement of the moving mechanism to change the laser movement path;

[0060] An instruction for controlling the driving mechanism to control the laser action; and

[0061] An instruction for controlling the fixture seat assembly to rotate the end face of the workpiece to realize the position adjustment of the workpiece.

[0062] The present application obtains the three-dimensional contour of the workpiece through a three-dimensional scanner, constructs a three-dimensional model through the three-dimensional contour, identifies the three-dimensional model of the workpiece to obtain whether there are preset features. If there are preset features, the three-dimensional model of the workpiece is divided into multiple equal-angle sectors with the position where the preset features are located as the reference point. Process lines and end face reference lines are constructed on each sector to determine the laser cutting depth and cutting path, and then the laser cutting depth and cutting path are correspondingly formed into control instructions for output, so as to control the movement of the moving mechanism, the rotation of the end face of the workpiece by the fixture seat assembly, and at least two of the driving mechanisms to control the laser to process the workpiece according to the set laser path. Compared with the traditional technology, the present application does not need to set a processing program for the workpiece, and it can correspondingly construct a processing control program by constructing the three-dimensional model of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] The following drawings are only for illustrative description and explanation of the present invention, and are not used to limit the scope of the present invention, where:

[0064] Figure 1 is the left three-dimensional structure schematic diagram of the laser cutting device of the present invention;

[0065] Figure 2 is the top three-dimensional structure schematic diagram of the laser cutting device of the present invention;

[0066] Figure 3 is the structure schematic diagram of the fixture seat assembly of the present invention;

[0067] Figure 4 is the structure schematic diagram of the moving mechanism part of the present invention;

[0068] Figure 5 is the front three-dimensional structure schematic diagram of the laser cutting device of the present invention;

[0069] Figure 6 Structural schematic diagram of the driving mechanism part of the present invention;

[0070] Figure 7 Structural schematic diagram of the docking and installation component part of the present invention;

[0071] Figure 8 Structural schematic diagram of the replaceable laser component of the present invention;

[0072] Figure 9 Internal structural schematic diagram of the replaceable laser component of the present invention;

[0073] Figure 10 Layout diagram of the lateral transmission line of the present invention. Specific implementation manners

[0074] In order to make the purpose, technical solution, design method and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below through specific embodiments with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Embodiment 1

[0075] Referring to Figures 1 to 7 , on the one hand, the present invention provides a laser cutting device, including:

[0076] A vertical base 1, in which an inclined plane is provided, and this inclined plane serves as the operation table for carrying the laser cutting device; an upper cover 4 is provided on the upper part of the vertical base 1, and a collection groove 10 is provided on its lower part; wherein, the upper cover 4 is of a flip type and can be freely opened and closed. During the workpiece processing by the milling machine, the upper cover 4 is closed, and the debris generated by the milling machine processing will not be splashed around due to the presence of the upper cover 4, and the debris falls into the collection groove 10 from the inclined plane;

[0077] A fixture base assembly 2 is provided on the upper part of the inclined plane, and a laser mechanism is provided on the fixture base assembly 2;

[0078] Among them, the laser mechanism includes a moving mechanism 3, a laser fixing seat 6 provided on the moving mechanism, a three-dimensional scanner 8 and a laser installation assembly 9 are provided below the laser fixing seat 6, and the laser installation assembly 9 is used to install different replaceable laser components;

[0079] A driving mechanism 7 for driving the laser installation assembly to rotate is provided on the laser fixing seat 6;

[0080] A control system, connected to the three-dimensional scanner 8, the driving mechanism 7 and the moving mechanism 3;

[0081] The control system has:

[0082] A processing module, connected to the 3D scanner 8, is configured to obtain the surface profile of the workpiece collected by the 3D scanner 8 and construct a 3D model of the workpiece based on the surface profile of the workpiece;

[0083] A configuration module is configured to set the laser path of the workpiece based on the 3D model of the workpiece and form a control instruction for controlling the laser to process the workpiece based on the laser path; specifically, setting the laser path of the workpiece based on the 3D model of the workpiece specifically includes:

[0084] Identifying the 3D model of the workpiece to obtain whether there is a preset feature. If there is a preset feature, using the position where the preset feature is located as a reference point;

[0085] Dividing the 3D model of the workpiece into a plurality of equal-angle sectors with the reference point, recording the position of each sector; obtaining at least one of the sectors, constructing a plurality of symmetric process lines along two sides of the sector; after reverse value-taking of the process lines at different heights, using them as the first laser cutting depth setting; at the same time, using the distance between two adjacent process lines at different heights as the first laser cutting length, and setting the first laser cutting path with at least one of the process lines as the starting point and the adjacent process line as the ending point;

[0086] A plurality of end-face reference lines perpendicular to the process lines are arranged along the end face of the sector. After reverse value-taking of the end-face reference lines with different lengths, using them as the second laser cutting depth setting; at the same time, using the distance between two adjacent process lines with different lengths as the second laser cutting length, and setting the second laser cutting path with at least one of the end-face reference lines as the starting point and the adjacent end-face reference line as the ending point.

[0087] A control module is configured to control the movement of the moving mechanism, the end-face rotation of the workpiece by the fixture seat assembly, and at least two of the driving mechanisms based on the control instruction to control the laser to process the workpiece according to the set laser path; specifically, obtaining the control instruction issued by the control system, decomposing the control instruction into a plurality of instruction units corresponding to the sector positions, and each instruction unit forms an instruction set for controlling the laser to process the workpiece according to the set laser path;

[0088] Wherein, the instruction set at least includes an instruction for controlling the movement of the moving mechanism to change the laser movement path;

[0089] An instruction for controlling the driving mechanism to control the laser action; and

[0090] An instruction for controlling the fixture seat assembly to rotate the end face of the workpiece to realize the position adjustment of the workpiece.

[0091] In the above, the preset feature is a set recognition feature, such as the shape feature of the workpiece, regular shapes such as circular and square. If it is a regular shape, the center point of the three-dimensional model of the recognized workpiece is used as the reference point, and the three-dimensional model of the workpiece is divided into multiple equally angled sectors with the reference point as the core. Each sector feature is the same; by inputting the processing parameters of the workpiece on the control panel (set on the side of the vertical base 1, not shown in the figure, and the control panel is a part of the control system for inputting the processing parameters during processing), the corresponding process line and end face reference line are set according to the processing parameters of the workpiece and the three-dimensional model. Among them, the processing parameters include the processing parameters of the surface profile and the end face, such as parameters for grooving, punching, or cutting the surface and end face. Specifically, the formed three-dimensional model can be displayed through the control panel, and the operator can set the position for grooving or punching based on the displayed three-dimensional model and input the parameter information for grooving and punching. It is also possible to construct a standard library in which a large number of standard models of common workpieces and corresponding processing parameters are established in advance. By comparing the three-dimensional model in the standard library, the same standard model can be obtained, and the corresponding processing program can be called according to the processing parameters set by the standard model for processing.

[0092] In addition, the preset feature can also be a feature that is easy to recognize, such as grooves, holes, or protrusions on the workpiece. These features can be used for laser cutting treatment of the workpiece surface or cutting treatment of grooves, holes, etc.

[0093] This application can also process workpieces with irregular shapes. Workpieces with irregular shapes generally do not have recognition features. When there are no recognition features, first, the irregularly shaped workpiece can be divided into several regularly shaped blocks through the three-dimensional model and the coordinate system, and then processed according to the recognition features of the regular shapes; after processing, the blocks can be combined according to the division rules.

[0094] In the above, the configuration module has a configuration task management module and a configuration matrix; among them, the configuration task management module is used to configure the form of the configuration matrix according to the number of blocks and sectors.

[0095] When it is a workpiece with a regular shape, there are multiple configuration modules in the configuration matrix, and each configuration module includes a process line configuration unit, an end face reference line configuration unit, and a path planning unit.

[0096] Among them, the process line configuration unit is used to construct a number of symmetric process lines along the two sides of the sector according to the set processing parameters and the three-dimensional model; the process lines at different heights are used as the first laser cutting depth setting after reverse value-taking; at the same time, the distance between two adjacent process lines at different heights is used as the first laser cutting length. For example, for surface cutting of 2 mm with a cube as an example, if the cube is not a standard cube and there is a certain error, when performing a 2-mm cutting uniformly, the error still exists in the cut workpiece. At this time, according to the three-dimensional model of the workpiece, the plane where the center point is located is used as a reference line, and equal-value process lines are constructed on both sides (the process lines are equal-value lines for a cube), leaving a 2-mm cutting area, and then the cutting parameter values can be obtained by reverse value-taking according to the equal-value process lines. These parameter values are 2 mm in some areas, less than 2 mm in some areas, and greater than 2 mm in some areas. When cutting according to these parameter values, a standard cube can be obtained.

[0097] The corresponding path planning unit is used to set the first laser cutting path with one of the process lines as the starting point and the adjacent process line as the ending point;

[0098] The end face reference line configuration unit is used to set a number of end face reference lines perpendicular to the process lines along the end face of the sector. The end face reference lines with different lengths are used as the second laser cutting depth setting after reverse value-taking; at the same time, the distance between two adjacent process lines with different lengths is used as the second laser cutting length;

[0099] The corresponding path planning unit is used to set the second laser cutting path with one of the end face reference lines as the starting point and the adjacent end face reference line as the ending point.

[0100] When the workpiece is a regular-shaped one, in addition to the above module settings, a combination unit and a splitting unit are also provided;

[0101] Among them, the splitting unit is used to split the irregular-shaped workpiece into several regular-shaped blocks through the three-dimensional model and the coordinate system;

[0102] The combination unit is used to process according to the recognition features of the regular shape (here, the processing refers to the configuration of the process line configuration unit, the end face reference line configuration unit, and the path planning unit); after processing, the blocks are combined again according to the splitting rules.

[0103] In the above, the fixture base assembly includes:

[0104] A fixture plate, and a chute is provided at the bottom of the fixture plate. The chute is used to be fixedly matched with the slide rail 212 provided at the lower part of the fixture plate;

[0105] The fixture base 211 is arranged at the upper part of the fixture plate. Mounting seats 210 are arranged on both sides of the fixture base 211. A fixture fixing seat 207 is arranged in the middle part of the fixture base 210. A number of through holes are arranged on the fixture fixing seat 207. The fixture fixing seat 207 is used to fix the workpiece in the through holes based on the through holes, so as to achieve the purpose of fixing the workpiece.

[0106] A left fixing frame 206 and a right fixing frame 208 are respectively arranged on both sides of the fixture plate. A left bearing seat 205 and a right bearing seat are respectively arranged in the left fixing frame 206 and the right fixing frame 208. A left connecting shaft and a right connecting shaft 209 are respectively arranged in the left bearing seat 205 and the right bearing seat. Among them, the left connecting shaft and the right connecting shaft 209 are respectively fixed in the mounting seats.

[0107] Among them, after the left connecting shaft 201 passes through the left bearing seat to the left, there is a surplus section, and a first gear 202 is arranged on the surplus section. A motor seat 203 is arranged on the mounting seat at the left end. A fixture motor 200 is arranged on the motor seat 203. A second gear 204 is arranged on the motor shaft of the fixture motor 200. The second gear 204 meshes with the first gear 202. By driving the second gear 204 to rotate through the fixture motor 200, the second gear 204 drives the first gear 202 to rotate, the first gear 202 rotates to drive the left connecting shaft 201 to rotate, and the left connecting shaft rotates to drive the fixture base 211 to rotate, so as to adjust the position of the workpiece end face.

[0108] In the above, the moving mechanism includes:

[0109] A horizontal substrate 304 is arranged on the upper part of the vertical base 1. Two parallel horizontal slide rails 302 are arranged on the horizontal substrate 304. A horizontal base 303 is arranged on the upper part of the horizontal slide rails 302. A horizontal chute matching the horizontal slide rails is arranged at the lower part of the horizontal base 303.

[0110] A moving motor fixing seat is arranged in the middle part of the horizontal substrate 204 and at the upper edge of the horizontal substrate. A moving motor 300 is arranged on the moving motor fixing seat. A horizontal driving wheel 301 is arranged on the motor shaft of the moving motor 300. A left driven wheel 307 and a right driven wheel 306 are respectively arranged on both sides of the upper horizontal slide rail. A horizontal measuring driven wheel 305 is arranged in the middle of the horizontal base 303. A horizontal angle sensor is embedded in the horizontal measuring driven wheel 305. The horizontal angle sensor is used to obtain the horizontal rotation amount, and based on the horizontal rotation amount, the moving distance of the horizontal base 303 is controlled.

[0111] The horizontal transmission line 308 has its right end fixed to the right end face on the right side of the horizontal substrate, and successively bypasses the horizontal measurement driven wheel 305, the right driven wheel 306, the horizontal drive wheel 301, and the left driven wheel 307, and then bypasses the horizontal measurement driven wheel 305 again and is fixed to the left end face on the left side of the horizontal substrate; specifically, refer to Figure 10 ; The arrow indicates the direction when the horizontal transmission line 308 is arranged, not the rotation direction.

[0112] A longitudinal substrate 506 perpendicular to the vertical movement of the substrate is provided on the horizontal substrate. Parallel longitudinal slide rails 504 are provided on the longitudinal substrate 506. A longitudinal base is provided on the longitudinal slide rails 504, and a longitudinal chute matching the longitudinal slide rails is provided at the lower part of the longitudinal base;

[0113] A longitudinal motor base 500 is provided on the right side of the longitudinal substrate. A longitudinal motor 501 is provided on the longitudinal motor base 500, and a longitudinal drive wheel 502 is provided on the motor shaft of the longitudinal motor;

[0114] A front driven wheel 507 and a rear driven wheel 508 are provided at the front and rear ends of the right longitudinal slide rail. A longitudinal measurement driven wheel 505 is provided on the longitudinal base, and a longitudinal angle sensor is embedded in the longitudinal measurement driven wheel 505; the longitudinal angle sensor is used to obtain the longitudinal rotation amount and control the moving distance of the longitudinal base based on the longitudinal rotation amount.

[0115] The longitudinal transmission line has its front end fixed to the front end face on the front side of the longitudinal substrate, and successively bypasses the longitudinal measurement driven wheel, the front driven wheel, the longitudinal drive wheel, and the rear driven wheel, and then bypasses the longitudinal measurement driven wheel again and is fixed to the rear end face on the rear side of the longitudinal substrate.

[0116] Both sides of the longitudinal base penetrate through the longitudinal substrate, and a laser installation component 6 is provided at the lower part of the longitudinal base.

[0117] Furthermore, the laser installation component 6 includes: a laser head seat;

[0118] A rotating bearing seat 706 is embedded in the laser head seat. A rotating shaft is provided in the rotating bearing seat, and a rotating shaft driven wheel 707 is provided above the rotating shaft;

[0119] Below the rotating shaft and at the lower part of the laser head seat, a laser docking component 9 is provided. A three-dimensional scanner 8 is provided on one side of the laser docking component 9, and the three-dimensional scanner 8 is provided at the lower part of the laser head seat;

[0120] The laser docking component has a docking head seat 100, and a laser component card slot 101 is provided in the docking head seat. The laser component card slot is generally in an inverted V shape, and a buckle component is provided at the opening position of the laser component card slot;

[0121] The snap component includes: a card slot 104 is provided near the opening of the laser component card slot, and a spring 102 and a snap 103 are arranged in the card slot 104.

[0122] Furthermore, the driving mechanism includes:

[0123] A driving motor mounting plate 702, one end on the left side of the driving motor mounting plate 702 is a fixed end 704, which is fixed on one side of the laser head seat. A driving motor 703 is arranged at the lower part of the driving motor mounting plate 702. The motor shaft 700 of the driving motor passes through the driving motor mounting plate, and a driving wheel 701 is arranged on the motor shaft 700. The driving wheel 701 is connected with a rotating shaft driven wheel 707 through a belt 705. Embodiment 2

[0124] Referring to Figure 8 and Figure 9 , the present application provides a replaceable laser component, which is applied to the laser cutting device described above, and the replaceable laser component is used to be installed on the laser docking component;

[0125] Among them, the replaceable laser component has:

[0126] A docking part, the docking part includes a docking plug 109, and a docking shell 117 is arranged outside the docking plug 109. A docking slot 118 is formed between the docking shell 117 and the docking plug 109.

[0127] A docking port 110 is arranged on the docking plug. Among them, the docking head seat 100 is installed in the docking slot, and the laser component card slot and the docking plug form a matching fixation. The docking port is used for matching installation with the snap.

[0128] When the driving mechanism drives the rotating shaft driven wheel to rotate, the rotating shaft driven wheel drives the rotating shaft to rotate, and the rotating shaft drives the docking plug to rotate through the laser docking component.

[0129] The docking plug includes a docking plug head 108 and a docking seat 113. Among them, the docking port 110 is arranged at the docking seat 113.

[0130] Furthermore, the lower part of the docking plug is used to be connected with the laser structure component 119;

[0131] Or form a right-angle laser through a right-angle mechanism and the laser connection;

[0132] Among them, the right-angle mechanism includes that a first connecting sleeve is arranged on the docking plug 109, and the docking plug is connected with a first bevel gear 112 through the first connecting sleeve, and the first bevel gear meshes with a second bevel gear 115;

[0133] The second bevel gear is installed in the second connecting sleeve 114, and the second connecting sleeve is connected to the laser 116. Embodiment 3

[0134] On the other hand, the present application also provides a control system, including:

[0135] A processing module, connected to the three-dimensional scanner, for obtaining the surface profile of the workpiece collected by the three-dimensional scanner and constructing a three-dimensional model of the workpiece according to the surface profile of the workpiece;

[0136] A configuration module, setting the laser path of the workpiece based on the three-dimensional model of the workpiece, and correspondingly forming a control instruction for controlling the laser to process the workpiece based on the laser path;

[0137] A control module, controlling the movement of the moving mechanism, the end face rotation of the workpiece by the fixture seat assembly, and at least two of the driving mechanisms based on the control instruction to control the laser to process the workpiece along the set laser path;

[0138] Wherein, setting the laser path of the workpiece based on the three-dimensional model of the workpiece specifically includes:

[0139] Identifying the three-dimensional model of the workpiece to obtain whether there is a preset feature. If there is a preset feature, taking the position where the preset feature is located as a reference point;

[0140] Dividing the three-dimensional model of the workpiece into a plurality of equally angled sectors with the reference point, and recording the position of each sector; obtaining at least one of the sectors, constructing a plurality of symmetric process lines along the two side surfaces of the sector; reversing the values of the process lines at different heights as the first depth setting for laser cutting; at the same time, taking the distance between two adjacent process lines at different heights as the first cutting length of the laser, and setting the first cutting path of the laser with at least one of the process lines as the starting point and the adjacent process line as the ending point;

[0141] A plurality of end face reference lines perpendicular to the process lines are arranged along the end face of the sector, and reversing the values of the end face reference lines with different lengths as the second depth setting for laser cutting; at the same time, taking the distance between two adjacent process lines with different lengths as the second cutting length of the laser, and setting the second cutting path of the laser with at least one of the end face reference lines as the starting point and the adjacent end face reference line as the ending point.

[0142] In the above, the preset feature is a set recognition feature, such as the shape feature of the workpiece, regular shapes such as circular and square. If it is a regular shape, the center point of the three-dimensional model of the recognized workpiece is used as the reference point, and the three-dimensional model of the workpiece is divided into multiple equally angled sectors with the reference point as the core. Each sector feature is the same; by inputting the processing parameters of the workpiece on the control panel (set on the side of the vertical base 1, not shown in the figure, and the control panel is part of the control system for inputting the processing parameters during processing), the corresponding process line and end face reference line are set according to the processing parameters of the workpiece and the three-dimensional model. Among them, the processing parameters include the processing parameters of the surface profile and the end face, such as parameters for grooving, punching, or cutting the surface and end face. Specifically, the formed three-dimensional model can be displayed through the control panel, and the operator can set the position for grooving or punching based on the displayed three-dimensional model and input the parameter information for grooving and punching. It can also be done by constructing a standard library in which a large number of standard models of common workpieces and corresponding processing parameters are established in advance. By comparing the three-dimensional model in the standard library, the same standard model can be obtained, and the corresponding processing program can be called according to the processing parameters set by the standard model for processing.

[0143] In addition, the preset feature can also be a feature that is easy to identify, such as grooves, holes, or protrusions on the workpiece. These features can be used to cut the surface of the workpiece or to cut the grooves, holes, etc.

[0144] This application can also process workpieces with irregular shapes. Workpieces with irregular shapes generally do not have recognition features. When there are no recognition features, first, the workpiece with an irregular shape can be divided into several regular-shaped blocks through the three-dimensional model and the coordinate system, and then processed according to the recognition features of the regular shape; after processing, the blocks can be combined according to the division rules.

[0145] In the above, the configuration module has a configuration task management module and a configuration matrix; among them, the configuration task management module is used to configure the form of the configuration matrix according to the number of blocks and sectors;

[0146] When it is a workpiece with a regular shape, there are multiple configuration modules in the configuration matrix, and each configuration module includes a process line configuration unit, an end face reference line configuration unit, and a path planning unit;

[0147] Among them, the process line configuration unit is used to construct a number of symmetric process lines along the two sides of the sector according to the set processing parameters and the three-dimensional model; after the process lines at different heights are inversely valued, they are used as the first laser cutting depth setting; at the same time, the distance between two adjacent process lines at different heights is used as the first laser cutting length. For example, for surface cutting of 2 mm with a cube as an example, if the cube is not a standard cube and there is a certain error, when performing a 2-mm cut uniformly, the error still exists in the ground workpiece. At this time, according to the three-dimensional model of the workpiece, the plane where the center point is located is used as a reference line, and equivalent process lines are constructed on both sides (the process lines are equivalent lines for a cube), leaving a 2-mm cutting area, and then the cutting parameter values can be obtained by inversely valuing according to the equivalent process lines. These parameter values are 2 mm in some areas, less than 2 mm in some areas, and greater than 2 mm in some areas. After cutting according to these parameter values, a standard cube is obtained.

[0148] The corresponding path planning unit is used to set the first laser cutting path with one of the process lines as the starting point and the adjacent process line as the ending point;

[0149] The end face reference line configuration unit is used to set a number of end face reference lines perpendicular to the process lines along the end face of the sector; after the end face reference lines of different lengths are inversely valued, they are used as the second laser cutting depth setting; at the same time, the distance between two adjacent process lines of different lengths is used as the second laser cutting length;

[0150] The corresponding path planning unit is used to set the second laser cutting path with one of the end face reference lines as the starting point and the adjacent end face reference line as the ending point.

[0151] When the workpiece is a regular-shaped workpiece, in addition to the above module settings, a combination unit and a segmentation unit are also provided;

[0152] Among them, the segmentation unit is used to divide the irregular-shaped workpiece into several regular-shaped blocks through the three-dimensional model and the coordinate system;

[0153] The combination unit is used to process according to the recognition features of regular shapes (here, the processing refers to the configuration of the process line configuration unit, the end face reference line configuration unit, and the path planning unit); after processing, the blocks are combined again according to the segmentation rules. Embodiment 4

[0154] The present application also provides a control method, which is applied to the above control system and includes the following steps:

[0155] Obtain the control instructions issued by the control system, decompose the control instructions into several instruction units according to the corresponding sector positions, and each instruction unit forms an instruction set for controlling the laser to process the workpiece according to the set laser path;

[0156] Among them, the instruction set at least includes an instruction for controlling the movement of the moving mechanism to change the laser movement path;

[0157] An instruction for controlling the driving mechanism to control the laser action; and

[0158] An instruction for controlling the fixture seat assembly to rotate the end face of the workpiece to achieve the adjustment of the workpiece position.

[0159] In this application, the three-dimensional contour of the workpiece is obtained through a three-dimensional scanner, and a three-dimensional model is constructed through the three-dimensional contour. By identifying the three-dimensional model of the workpiece, it is determined whether there are preset features. If there are preset features, the three-dimensional model of the workpiece is divided into multiple equal-angle sectors with the position where the preset features are located as the reference point. Process lines and end face reference lines are constructed on each sector to determine the laser cutting depth and cutting path, and then the laser cutting depth and the corresponding cutting path are formed into control instructions for output, so as to control the movement of the moving mechanism, the rotation of the end face of the workpiece by the fixture seat assembly, and at least two of the driving mechanisms to control the laser to process the workpiece according to the set laser path. Compared with the traditional technology, this application does not need to set a processing program for the workpiece, and it can construct a processing control program correspondingly by constructing the three-dimensional model of the workpiece.

[0160] The embodiments of the present invention have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other ordinary technical personnel in the technical field to understand the embodiments disclosed herein.

Claims

1. A control system, characterized in that: include: A processing module connected to the three-dimensional scanner, the processing module is used to obtain the surface contour of the workpiece collected by the three-dimensional scanner, and construct a three-dimensional model of the workpiece according to the surface contour of the workpiece; A configuration module, which sets a laser path for the workpiece based on a three-dimensional model of the workpiece, and correspondingly generates control instructions for controlling the laser to process the workpiece based on the laser path; A control module, based on the control instruction, controls the movement of the moving mechanism, the rotation of the end surface of the workpiece by the fixture seat assembly, and at least two of the driving mechanisms to control the laser to process the workpiece according to a set laser path; The laser path of the workpiece is set based on the three-dimensional model of the workpiece, specifically including: Identify the three-dimensional model of the workpiece to determine whether there is a preset feature. If there is a preset feature, the location of the preset feature is used as the reference point; The three-dimensional model of the workpiece is divided into a plurality of sectors of equal angles by using the reference point, and the position of each sector is recorded; at least one of the sectors is obtained, and a plurality of symmetrical process lines are constructed along the two sides of the sector; the process lines of different heights are reversely taken as the first depth setting of laser cutting; at the same time, the distance between two adjacent process lines of different heights is used as the first cutting length of the laser, and at least one of the process lines is used as the starting point and the adjacent process line is used as the end point to set the first cutting path of the laser; A number of end face reference lines perpendicular to the process lines are arranged along the end face of the sector, and the end face reference lines of different lengths are taken in reverse and used as the second depth setting of the laser cutting; at the same time, the distance between two adjacent process lines of different lengths is used as the second cutting length of the laser, and at least one of the end face reference lines is used as the starting point, and the adjacent end face reference lines are used as the end point to set the second cutting path of the laser.

2. A control method, applied to the control system according to claim 1, characterized in that: The steps include: Obtain the control instructions issued by the control system, and decompose the control instructions into a number of instruction units corresponding to the sector positions, each instruction unit forming an instruction set for controlling the laser to process the workpiece according to the set laser path; Wherein, the instruction set includes at least an instruction for controlling the movement of the moving mechanism to change the moving path of the laser; Instructions for controlling the drive mechanism to control the laser motion; and The fixture seat assembly is controlled to rotate the end face of the workpiece to implement instructions for adjusting the position of the workpiece.

3. A laser cutting device, comprising the control system according to claim 1, characterized in that: include: A vertical base, on which a fixture base assembly is arranged, and on which a laser mechanism is arranged; The laser mechanism includes a moving mechanism, a laser fixing seat arranged on the moving mechanism, a three-dimensional scanner and a laser installation component are arranged at the lower part of the laser fixing seat, and the laser installation component is used to install different replaceable laser components; A driving mechanism for driving the laser mounting assembly to rotate is arranged on the laser fixing seat; A control system connected to the three-dimensional scanner, the driving mechanism and the moving mechanism; The control system has: A processing module connected to the three-dimensional scanner, the processing module is used to obtain the surface contour of the workpiece collected by the three-dimensional scanner, and construct a three-dimensional model of the workpiece according to the surface contour of the workpiece; A configuration module, which sets a laser path of the workpiece based on a three-dimensional model of the workpiece, and correspondingly generates control instructions for controlling the laser assembly to process the workpiece based on the laser path; The control module controls the movement of the moving mechanism, the rotation of the end surface of the workpiece by the fixture seat assembly and at least two of the driving mechanisms based on the control instructions to control the laser assembly to process the workpiece according to the set laser path.

4. The laser cutting device according to claim 3, characterized in that: Setting the laser path of the workpiece based on the three-dimensional model of the workpiece specifically includes: Identify the three-dimensional model of the workpiece to determine whether there is a preset feature. If there is a preset feature, the location of the preset feature is used as the reference point; The three-dimensional model of the workpiece is divided into a plurality of sectors of equal angles by using the reference point, and the position of each sector is recorded; at least one of the sectors is obtained, and a plurality of symmetrical process lines are constructed along the two sides of the sector; the process lines of different heights are reversely taken as the first depth setting of laser cutting; at the same time, the distance between two adjacent process lines of different heights is used as the first cutting length of the laser, and at least one of the process lines is used as the starting point and the adjacent process line is used as the end point to set the first cutting path of the laser; A number of end face reference lines perpendicular to the process lines are arranged along the end face of the sector, and the end face reference lines of different lengths are taken in reverse and used as the second depth setting of the laser cutting; at the same time, the distance between two adjacent process lines of different lengths is used as the second cutting length of the laser, and at least one of the end face reference lines is used as the starting point, and the adjacent end face reference lines are used as the end point to set the second cutting path of the laser.

5. The laser cutting device according to claim 3, characterized in that: The fixture seat assembly comprises: A jig plate, wherein a slide groove is provided at the bottom of the jig plate, and the slide groove is used to match and fix with a slide rail provided at the bottom of the jig plate; A jig base is arranged on the upper part of the jig plate, mounting seats are arranged on both sides of the jig base, a jig fixing seat is arranged in the middle part of the jig base, a plurality of through holes are arranged on the jig fixing seat, and the jig fixing seat is used to fix the workpiece in the through holes based on the through holes, so as to achieve the purpose of fixing the workpiece; A left fixing frame and a right fixing frame are respectively arranged on both sides of the jig plate, and a left bearing seat and a right bearing seat are respectively arranged in the left fixing frame and the right fixing frame; a left connecting shaft and a right connecting shaft are respectively arranged in the left bearing seat and the right bearing seat, wherein the left connecting shaft and the right connecting shaft are respectively fixed in the mounting seat; Among them, a margin section is provided after the left connecting shaft passes through the left bearing seat to the left, and a first gear is provided on the margin section; a motor seat is provided on the mounting seat at one end of the left side, and a jig motor is provided on the motor seat, and a second gear is provided on the motor shaft of the jig motor, and the second gear is meshed with the first gear. The second gear is driven to rotate by the jig motor, and the second gear drives the first gear to rotate. The rotation of the first gear drives the left connecting shaft to rotate, and the rotation of the left connecting shaft drives the jig base to rotate to adjust the position of the workpiece.

6. The laser cutting device according to claim 3, characterized in that: The moving mechanism comprises: A transverse base plate is arranged on the upper part of the vertical base, two parallel transverse slide rails are arranged on the transverse base plate, a transverse base is arranged on the upper part of the transverse slide rails, and a transverse slide groove matching the transverse slide rails is arranged on the lower part of the transverse base; A mobile motor fixing seat is arranged in the middle part of the transverse substrate and at the upper edge of the transverse substrate, a mobile motor is arranged on the mobile motor fixing seat, a transverse driving wheel is arranged on the motor shaft of the mobile motor, a left driven wheel and a right driven wheel are arranged on both sides of the transverse slide rail at the upper end, a transverse measuring driven wheel is arranged in the middle of the transverse base, and a transverse angle sensor is embedded in the transverse measuring driven wheel; The right end of the transverse transmission line is fixed on the right side end surface of the right side of the transverse base plate, passes through the transverse measurement driven wheel, the right driven wheel, the transverse driving wheel, the left driven wheel in sequence, passes through the transverse measurement driven wheel again, and is fixed on the left side end surface of the left side of the transverse base plate; A longitudinal substrate for vertically moving the substrate is arranged on the transverse substrate, a longitudinal slide rail arranged in parallel is arranged on the longitudinal substrate, a longitudinal base is arranged on the longitudinal slide rail, and a longitudinal slide groove matching the longitudinal slide rail is arranged at the lower part of the longitudinal base; A longitudinal motor seat is arranged on the right side of the longitudinal base plate, a longitudinal motor is arranged on the longitudinal motor seat, and a longitudinal driving wheel is arranged on the motor shaft of the longitudinal motor; A front driven wheel and a rear driven wheel are arranged at the front and rear ends of the longitudinal slide rail on the right side, a longitudinal measuring driven wheel is arranged on the longitudinal base, and a longitudinal angle sensor is embedded in the longitudinal measuring driven wheel; The longitudinal transmission line, one end of which is fixed on the point side end surface of the front side of the longitudinal base plate, passes through the longitudinal measurement driven wheel, the front driven wheel, the longitudinal driving wheel, the rear driven wheel in sequence, passes through the longitudinal measurement driven wheel again, and is fixed on the rear side end surface of the rear side of the longitudinal base plate; The longitudinal base plates extend through the two sides of the longitudinal base, and a laser installation assembly is arranged at the lower part of the longitudinal base.

7. The laser cutting device according to claim 3, characterized in that: The laser installation assembly includes: a laser head seat; A rotating bearing seat is embedded in the laser head seat, a rotating shaft is arranged in the rotating bearing seat, and a rotating shaft driven wheel is arranged above the rotating shaft; A laser docking assembly is arranged below the rotating shaft and at the lower part of the laser head seat, and a three-dimensional scanner is arranged on one side of the laser docking assembly, wherein the three-dimensional scanner is arranged at the lower part of the laser head seat; The laser docking assembly has a docking head seat, in which a laser assembly slot is arranged, wherein the laser assembly slot is in an inverted V shape, and a buckle assembly is arranged at the opening position of the laser assembly slot; The buckle assembly comprises: a clamping slot is arranged near the opening position of the laser assembly clamping slot, and a spring and a buckle are arranged in the clamping slot.

8. The laser cutting device according to claim 3, characterized in that: The driving mechanism comprises: The drive motor mounting plate is fixed on one side of the laser head seat. A drive motor is arranged at the lower part of the drive motor mounting plate. The motor shaft of the drive motor passes through the drive motor mounting plate, and a drive wheel is arranged on the motor shaft. The drive wheel is connected to the driven wheel of the rotating shaft through a belt.

9. A replaceable laser assembly, applied to any one of the laser cutting devices according to claims 3 to 8, wherein the replaceable laser assembly is used to be mounted on a laser docking assembly; in, The replaceable laser assembly has: The docking part includes a docking rod, a docking shell is arranged outside the docking rod, and a docking groove is formed between the docking shell and the docking rod. A docking port is provided on the docking rod, wherein the docking head seat is installed in the docking groove, the laser component slot and the docking rod are matched and fixed, and the docking port is used for matching and installing with the buckle; When the driving mechanism drives the driven wheel of the rotating shaft to rotate, the driven wheel of the rotating shaft drives the rotating shaft to rotate, and the rotating shaft drives the docking rod to rotate through the laser docking assembly.

10. The replaceable laser assembly according to claim 9, characterized in that: The lower part of the docking rod is used to connect with the laser; Or connect with the laser through a right angle mechanism to form a right angle laser; Wherein, the right-angle mechanism includes: a first connecting sleeve is arranged on the docking rod, the docking rod is connected to the first bevel gear through the first connecting sleeve, and the first bevel gear is meshed with the second bevel gear; The second bevel gear is installed in a second connecting sleeve, and the second connecting sleeve is connected to the laser.

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