Precise instrument laser cutting device and method

Abstract

The invention relates to the technical field of equipment machining, in particular to a laser cutting device and method for precise instruments and equipment. The precise instrument laser cutting device comprises a conveying assembly used for quantitatively conveying raw materials of precise instruments placed on the conveying assembly. The correcting assembly is installed on the conveying assembly and used for correcting the position of the raw material equipment conveyed on the conveying assembly in a clamping mode. And the laser cutting assembly is installed on the conveying assembly and used for cutting the cutting face of the raw material equipment on the conveying assembly. And the image acquisition module is mounted on the side edge of the conveying assembly and is used for shooting the raw material equipment on the conveying assembly to obtain a shot picture of the raw material equipment. Cutting machining can be carried out according to the preset three-dimensional model, design can be carried out in advance, overall layout design can be carried out, and the automation capacity of design cutting is improved. And the cutting quality can be ensured on the premise of ensuring the service life of equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of equipment processing, and in particular to a precision instrument laser cutting device and method. Background Art

[0002] Precision instruments refer to instruments with high precision, high stability and high sensitivity, which are mainly used for measurement, detection, analysis and control. Such instruments are widely used in various fields, such as scientific research, medical health, industrial production, aerospace, etc., and play an important role. The main characteristics of precision instruments are as follows: High precision: Precision instruments usually have a higher measurement error limit, which can reduce the random fluctuation of measurement error while meeting certain accuracy requirements. High stability: Precision instruments can maintain relatively stable performance during long-term use, and will not produce large performance deviations due to environmental changes, time lapse and other reasons. High sensitivity: Precision instruments can output a large response within a small signal input range, which is suitable for measurement and control of small quantities or extreme conditions. High reliability and durability: Precision instruments can work stably for a long time in various environments, have good anti-interference ability and life, and can extend their service life under certain repair and maintenance conditions. High integration and intelligence: Modern precision instruments often integrate a variety of functional modules, and can realize intelligent operation and automatic control through software programming and other methods to improve work efficiency. The development of precision instruments is inseparable from the progress and innovation of science and technology.

[0003] Laser cutting of precision instrument parts is a high-precision processing technology, mainly used to make precision parts of various complex geometric shapes and structures. Laser cutting has the following advantages: High precision: The high power and focusing characteristics of the laser cutting head enable it to achieve precise cutting on various materials (such as metals, non-metals, composite materials), and the cutting accuracy can reach the micron level. High speed: The laser cutting head runs very fast and can complete a large amount of cutting work in a short time, greatly improving production efficiency. High quality: The laser cutting process hardly produces thermal deformation and residual stress, so the accuracy and dimensional tolerance of the cut parts can be guaranteed.

[0004] Existing precision instrument cutting is performed by manual placement and cutting, which requires human control and cannot be intelligently controlled as needed. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a precision instrument laser cutting device for cutting raw materials of precision instruments, thereby improving the cutting quality and automation capability of raw materials of precision instruments. The precision instrument laser cutting device may include:

[0006] The conveying assembly is used to quantitatively convey the raw materials of the precision instrument placed thereon, and the conveying direction can be parallel to the cutting surface of the raw materials. The cutting surface can be located on the side or top surface of the raw materials. In order to better improve the accuracy of cutting, the conveying assembly can include multiple conveying units, and each conveying unit is connected end to end on the same plane in the conveying direction, so as to form a segmented conveying.

[0007] The correction component is installed on the conveying component and is used to correct the position of the raw materials and equipment conveyed on the conveying component by clamping, so that the placement of the raw materials and equipment can meet the cutting requirements.

[0008] The laser cutting assembly is installed on the conveying assembly and is used to cut the cutting surface of the raw material on the conveying assembly. The laser cutting assembly can be set directly above or to the side of the conveying assembly, or both directly above and to the side for coordinated operation.

[0009] The image acquisition module is installed on the side of the conveying component and is used to photograph the raw materials on the conveying component, so as to obtain the photographed pictures of the raw materials. Because the lateral position of the raw materials has been corrected, the image acquisition module can be installed to capture the image on the side of the conveying component. The image acquisition module can be a high-definition camera, a still camera, etc., and the details are not described here.

[0010] The controller obtains the type and model of the raw material equipment; controls the correction component to correct the lateral placement position of the raw material equipment according to the type and model of the raw material equipment; obtains the equipment model according to the type and model of the raw material equipment; constructs a spatial coordinate system, controls the transmission component to decelerate and reduce the transmission speed of the transmission component to a preset standard transmission speed v 标 Transport the raw material equipment to the cutting position; implant the equipment model into the spatial coordinate system and overlap it with the raw material equipment to be cut, obtain the cutting path and its corresponding cutting depth h; obtain the corresponding maximum suitable spot diameter for cutting according to the precision instrument, and determine the cutting spot of the laser cutter with the maximum suitable spot diameter for cutting; control the coordinated movement of the transport component and the laser cutting component to enable the laser cutter to cut the raw material equipment according to the cutting path; obtain the optimal laser intensity Li according to the current equipment material; calculate the current cutting speed v according to the cutting depth of the current cutting point; determine whether the current cutting speed v is less than a preset standard cutting speed v 标 If not, the cutting point is controlled to move along the cutting path according to the current cutting speed v for cutting; if yes, the required laser intensity Li' is calculated; and then it is determined whether the required laser intensity Li' is greater than a preset standard laser intensity Li 标 If yes, the laser cutter is controlled to operate at the standard laser intensity Li 标if not, the laser cutter is controlled to cut at the required laser intensity Li'.

[0011] Preferably: the correction component may include a first correction member and a second correction member, the first correction member and the second correction member may be a clamping structure that can slide relative to each other, and the raw materials on the conveying component are quantitatively fed and clamped relative to both sides by the relative sliding of the first correction member and the second correction member, so that the position of the raw materials on the conveying component can be corrected. The second correction member is arranged on both sides of the conveying component relative to the first correction member, and the first correction member pushes the raw materials on the conveying component horizontally in the vertical conveying direction through the inclined plane guide with a fixed feed amount, and the second correction member quantitatively limits the horizontal push of the raw materials. Here we can assume that the conveying direction of the conveying component is longitudinal, and the transmission is basically horizontal transmission, the direction perpendicular to the longitudinal direction and parallel to the conveying plane is transverse, and the first correction member and the second correction member are arranged relative to each other in the transverse direction. The position is corrected by the relative sliding clamping of the first correction member and the second correction member, so that the raw materials can be conveyed at a fixed transverse position on the conveying component, so as to facilitate quantitative cutting.

[0012] Preferably: the first correcting member may include a first fixed frame, a first feeding member and a first correcting strip, the first fixed frame is fixedly mounted on the side wall of the conveying assembly, the first feeding member is mounted on the first fixed frame, the output end of the first feeding member is fixedly connected to the first correcting strip, the first correcting strip may include a straight edge portion and a beveled edge portion, the straight edge portion is consistent with the conveying direction of the conveying assembly, the beveled edge portion is fixedly connected to one end of the straight edge portion, and the beveled edge portion is located in front of the conveying direction of the straight edge portion. When the raw material equipment is conveyed on the conveying assembly, the feed amount can be determined according to the type and model of the raw material equipment, and then the driving amount of the first feeding member is controlled. Under the action of the first feeding member, the feed drive can be quantitatively fed, thereby controlling the quantitative lateral sliding of the first correcting strip, the beveled edge portion guides the raw material equipment conveyed on the conveying assembly, and is laterally restricted by the second correcting member, and then the position is corrected by the straight portion of the first correcting member.

[0013] Preferably: a guide rod is fixedly provided at the edge of the first correction bar, and the guide rod is slidably nested inside the first fixing frame, so that the first correction bar can slide smoothly. The number of the guide rods can be set to two, thereby increasing the stability of the sliding of the first correction bar. Specifically, linear bearings can be fixedly provided at relative positions inside the first fixing frame, and the number of linear bearings corresponds to the guide rods one by one. The guide rods are slidably sleeved inside the linear bearings, thereby reducing the friction of the guide, thereby making the sliding smoother.

[0014] Preferably: the clamping surface of the first correction bar is rotatably provided with a plurality of guide rollers, the guide rollers are linearly distributed, and the setting of the guide rollers can reduce the clamping friction during the transmission of the raw material equipment, making the transmission smoother. The structure of the second correction piece can be similar to that of the first correction piece.

[0015] Preferably: the laser cutting assembly includes a lifting drive, a transverse feed, a rotating direction adjustment structure and a laser cutter, wherein the lifting drive is installed on the transmission assembly, and the lifting drive is used to adjust the cutting height. The transverse feed is connected to the lifting drive, and is used to adjust the transverse feed amount of the cutting, so as to adapt to the surface convexity and concavity of the raw material equipment, thereby improving the applicability of the equipment. The rotating direction adjustment structure is connected to the transverse feed, and is used to adjust the cutting angle, so as to adapt to various cutting method requirements. The laser cutter is installed on the transverse feed, and is used to emit laser for cutting. The specific structure of the laser cutter is prior art, and will not be described in detail here.

[0016] Preferably: the lifting drive member may include a driving motor, a screw rod, a track frame and a lifting sliding block, and the track frame may be a vertically arranged rod-shaped structure or a gantry structure. The track frame is provided with a vertical track structure, and a lifting sliding block is slidably arranged on the track frame. The driving motor is fixedly installed on the track frame, and the output shaft of the driving motor is coaxially fixedly connected with a screw rod, and the axial direction of the screw rod is consistent with the guide direction of the track structure. The lifting sliding block is nested in the screw rod. Under the drive of the driving motor, the screw rod rotates to adjust the lifting height of the lifting sliding block. The driving motor may also be provided with an output metering device, so that the output of the driving motor can be controlled, so as to quantitatively control the height of the lifting sliding block. The specific prior art is not described here. The track frame may be a vertically arranged rectangular structure, and the track structure is provided with two and opposite sides of the rectangular, and the two sides of the lifting sliding block are slidably sleeved on the track structure. Through the arrangement of this structure, the sliding stability of the lifting sliding block can be increased. The lifting drive member may also be a synchronous belt structure, and the synchronous belt arrangement can make the lifting sliding block slide more smoothly. The specific prior art is not described here. The transverse feeding member is installed on the lifting sliding block and is used for controlling the cutting feed amount in the transverse direction.

[0017] Preferably, the transverse feeding member may include a transverse driving member and a telescopic rod, one end of the telescopic rod is fixedly connected to the lifting sliding block, and the telescopic rod can be arranged horizontally. The transverse driving member is installed on the lifting sliding block, and its output end is connected to the other end of the telescopic rod. The transverse driving member is used to drive the telescopic rod to extend and retract transversely, thereby controlling the transverse distance between the laser cutter and the cutting surface of the raw material equipment.

[0018] Preferably: the telescopic rod may include a plurality of mutually slidably sleeved unit rods and track plates, the unit rods are axially slidably sleeved in turn inside and outside, and the number of unit rods may be generally . The unit rod may include an intermediate rod and an end rod, the end rod includes an inner rod and an outer rod, the inner rod is at the innermost side of all unit rods, the intermediate rod is sleeved outside the inner rod and slidably sleeved in turn, and the end rod is sleeved on the outermost intermediate rod. The sides of the outer rod and the intermediate rod are provided with mounting grooves, the mounting grooves are in the same straight line, and two mounting grooves are arranged relatively up and down, the track plate is fixedly installed in the mounting groove, and each track plate is slidably sleeved in turn, the track plate may include a single-sided guide rail and a double-sided guide rail, the single-sided guide rail is fixedly installed on the inner rod and the outer rod, the double-sided guide rail is installed on the intermediate rod, the single-sided guide rail and the double-sided guide rail are slidably sleeved in turn, thereby increasing the stability and linearity of the telescopic rod, avoiding the height change of the laser cutter caused by its gravity deflection and the increase in length, and making the position of the laser cutter shooting more stable and accurate. The single-sided guide rail can be a single-sided guide rail structure, and the double-sided guide rail can be a double-sided guide rail structure, and its specific structure is not repeated here. When installing the telescopic rod, the inner rod of the unit rod is fixedly installed on the lifting sliding block, and the output end of the horizontal driving member is rotatably connected to the outer rod.

[0019] Preferably: the rotation and direction adjustment structure may include a workbench, a rotating table, an angle adjustment frame and an angle adjustment member, wherein the workbench is fixedly mounted on the end of the telescopic rod. The workbench can be vertically arranged, the rotating table is rotationally mounted on the workbench, and the rotating table is connected to a rotation drive structure. Under the action of the rotation drive structure, the rotating table rotates quantitatively, the angle adjustment frame is rotationally connected to the rotating table, the angle adjustment member is rotationally mounted on the rotating table and its output end is rotationally connected to the side wall of the angle adjustment frame, and the laser cutter is fixedly mounted on the end of the angle adjustment frame. Under the action of the angle adjustment member, the angle adjustment frame rotates on the rotating table, thereby adjusting the cutting angle of the laser cutter.

[0020] Preferably, the rotation drive structure may include: an adjustment motor, a worm wheel and a worm, the adjustment motor is fixedly mounted on the workbench, the worm is rotatably mounted on the workbench and coaxially fixedly connected to the output shaft of the adjustment motor, the worm wheel is coaxially fixedly connected to the rotating table, and the worm and the worm wheel are meshed. Under the drive of the adjustment motor, the worm rotates the rotating base surface through the worm wheel, thereby completing the fixed-angle rotation of the laser cutter. Of course, the rotation drive structure can also be a gear drive structure.

[0021] Preferably: a zero sensor can be provided between the rotating table and the working table, and the rotation angle of the rotating table can be calibrated to zero degree through the zero sensor, and then the rotation angle can be controlled by the output of the rotating drive structure. The zero sensor can be a photosensor, and the photosensor can include a light source generator and a light source receiver, which are respectively arranged at relative positions of the working table and the rotating table. When the rotation angle of the rotating table is zero, the light source emitted by the light source generator is received by the light source receiver, thereby calibrating the rotation angle of the rotating table. We can calibrate this angle to zero, and then calibrate the rotation angle of the rotating table with the output of the rotating drive structure. By setting the light source generator and the light source receiver, the positioning is accurate and sensitive.

[0022] Preferably, the equipment model obtaining method includes: starting an image acquisition module to photograph the raw equipment to obtain photographic images, combining the photographic images to obtain a combined three-dimensional model, extracting equipment features from the combined three-dimensional model, and then searching for a pre-valued feature-equipment model information table through the equipment features to obtain the equipment model.

[0023] Preferably: the method for controlling the deceleration motion of the conveying component includes: obtaining the current cutting distance L of the raw material equipment, determining whether the current cutting distance L of the raw material equipment is equal to a preset standard buffer distance L 标 If yes, the controller controls the conveying component to decelerate and reduce the conveying speed of the conveying component to a preset standard conveying speed v 标 , if not, keep the conveyor component running at its current speed.

[0024] Preferably, the method for obtaining the cutting distance L includes: calculating the coordinates (x', y', z') of the current reference point, then obtaining the coordinates (x, y, z) of the reference point during cutting, and then calculating the cutting distance

[0025]

[0026] Preferred: Standard buffer distance Where v is the initial conveying speed of the conveyor component, a is the optimal deceleration of the conveyor component, and the deceleration value needs to take into account the deceleration capacity of the conveyor component, the friction of the conveyor component, and the center of gravity of the raw material equipment. The standard conveying speed v 标 It is the standard speed during the cutting process of raw materials. Its value can be the average speed during the cutting process of raw materials, or the median of the cutting speed. This ensures that the speed of raw materials changes during the cutting process, the switching speed is fast, and it is not easy to cause the movement of raw materials.

[0027] Preferred: The cutting path of the laser cutter passes through the cutting vector of the current coordinate point in the equipment model Then the controller uses (x1, y1, z1) to control the transmission component and the laser cutting component to control the cutting position. Control the laser cutting component so that the cutting direction of the laser cutter is consistent with the cutting vector Overlapping cutting can be controlled by this method, which can quickly complete the positioning of the cutting direction and the control of the cutting point. Through vector control, the control is precise and easy to adjust in real time. It can be applied to various cutting paths and will not be affected by the surface shape of the raw materials and equipment. It has strong applicability.

[0028] Preferably, the method for obtaining the cutting vector may include: obtaining the current coordinate point of the moving path, then obtaining the cross section of the current coordinate point of the moving path, and obtaining the intersection line of the cross section and the moving path at the current coordinate. The starting point (x1, y1, z1) and the end point (x2, y2, z2) of the intersection line, the starting point may be the intersection point of the intersection line and the surface of the equipment model, and the cutting vector is (x2-x1, y2-y1, z2-z1).

[0029] Preferably, the control method through the cutting vector may include: controlling the angle of the angle adjustment frame to be an angle ɑ through the angle adjustment member, and then controlling the rotation adjustment structure to drive the rotating table to rotate its rotation angle β, and the driving height of the controller lifting and lowering sliding block may be H. Controlling the feeding length of the telescopic rod to be S, the transmission lateral position of the transmission assembly to be K.

[0030] Preferred: Angle

[0031] Preferred: Rotation angle

[0032] Preferred: Drive Height Where l is the effective overall length of the angle adjustment frame and the laser cutter, which can be calculated by the sum of the axial lengths of the angle adjustment frame and the laser cutter. The details are not repeated here. L0 is the optimal spacing for cutting, which can be determined according to the cutting performance of the laser cutter. H0 is the difference between the spatial coordinate system and the basic adjustment of the lifting and sliding block.

[0033] Preferred: Feed Length Where l is the effective overall length of the angle adjustment frame and the laser cutter, which can be calculated by the sum of the axial lengths of the angle adjustment frame and the laser cutter. The details are not repeated here. L0 is the optimal cutting spacing, which can be determined according to the cutting performance of the laser cutter. S0 is the y-axis value of the rotating table when the feed amount of the telescopic rod is 0.

[0034] Preferably: the lateral position of the conveying assembly Wherein l is the effective overall length of the angle adjustment frame and the laser cutter, which can be calculated by the sum of the axial lengths of the angle adjustment frame and the laser cutter, and the details are not repeated here. L0 is the optimal spacing for cutting, which can be determined according to the cutting performance of the laser cutter.

[0035] Preferably, the method for obtaining the current cutting speed v may include: obtaining the coordinates of the current cutting point and the cutting depth h, and then calculating the cutting speed of the current cutting point. Where h is the cutting depth of the current cutting point, the specific value is (x2-x1) 2 +(y2-y1) 2 +(z2-z1) 2 , it is not simply the coordinate depth in the horizontal direction, and the details will not be elaborated here. δ is the absorption rate of the raw material material to the laser, which can be obtained by conducting experiments on the material in advance. Of course, other numerical settings are not excluded, and the details will not be elaborated here. ε is the cutting rate per unit laser intensity, and its unit is generally cm / ws or cm / mJs. It must be consistent with the cutting depth when calculating. On the basis of this calculation model, we assume that the cutting depth of the raw material equipment does not change much to ensure the accuracy of its numerical calculation. η is the adjustment coefficient, and its value needs to be obtained through experiments in advance. The cutting speed calculated by this method is accurate, and the characteristics of the material itself can be taken into account, and different cutting depths can be applied, so that quantitative processing can be performed, which makes quantitative cutting possible, and the control is precise, which improves the cutting quality. R is the effective diameter of the spot of the laser cutter, which can be determined according to the characteristics of the spot, and its value generally ranges from a few microns to tens of microns.

[0036] Preferred: Required laser intensity Where h is the cutting depth of the current cutting point, the specific value is (x2-x1) 2 +(y2-y1) 2 +(z2-z1) 2, it is not simply the coordinate depth in the horizontal direction, and the details will not be elaborated here. δ is the absorption rate of the raw material material to the laser, which can be obtained by conducting experiments on the material in advance. Of course, other numerical settings are not excluded, and the details will not be elaborated here. ε is the cutting rate per unit laser intensity, and its unit is generally cm / ws or cm / mJs. It must be consistent with the cutting depth when calculating. On the basis of this calculation model, we assume that the cutting depth of the raw material equipment does not change much to ensure the accuracy of its numerical calculation. η is the adjustment coefficient, and its value needs to be obtained through experiments in advance. The cutting speed calculated by this method is accurate, and the characteristics of the material itself can be taken into account, and different cutting depths can be applied, so that quantitative processing can be performed, which makes quantitative cutting possible, and the control is precise, which improves the cutting quality. R is the effective diameter of the spot of the laser cutter, which can be determined according to the characteristics of the spot, and its value generally ranges from a few microns to tens of microns.

[0037] The present invention also proposes a method for laser cutting of precision instruments and equipment, the method comprising the following steps:

[0038] S1. Obtain the types and models of raw materials and equipment.

[0039] S2. According to the type and model of the raw material equipment, the correction component is controlled to correct the lateral placement position of the raw material equipment.

[0040] S3. Obtain the equipment model according to the type and model of the raw material equipment.

[0041] S4, construct a spatial coordinate system, control the transmission component to decelerate and reduce the transmission speed to a preset standard transmission speed v 标 Transport raw materials to the cutting position.

[0042] S5. Implant the equipment model into the space coordinate system and overlap it with the raw material equipment to be cut, so as to obtain the cutting path and its corresponding cutting depth h.

[0043] S6. Obtain the corresponding maximum suitable cutting spot diameter according to the precision instrument, and determine the cutting spot of the laser cutter according to the maximum suitable cutting spot diameter.

[0044] S7, controlling the transmission component and the laser cutting component to move in coordination, so that the laser cutter cuts the raw material according to the cutting path.

[0045] S8. Obtain the optimal laser intensity Li according to the current equipment material.

[0046] S9. Calculate the current cutting speed v according to the cutting depth of the current cutting point.

[0047] S10, determine whether the current cutting speed v is less than a preset standard cutting speed v标 If no, execute S11; if yes, execute S12.

[0048] S11, controlling the cutting point to move along the cutting path at the current cutting speed v for cutting.

[0049] S12, calculate the required laser intensity Li'.

[0050] S13, judging whether the required laser intensity Li' is greater than a preset standard laser intensity Li 标 If yes, execute S14; if no, execute S15.

[0051] S14, control the laser cutter to a standard laser intensity Li 标 Make the cut.

[0052] S15, controlling the laser cutter to perform cutting at the required laser intensity Li'.

[0053] The technical effects and advantages of the present invention are as follows: the present invention can perform cutting processing according to a pre-set three-dimensional model, can be designed in advance, can perform overall layout design, and improve the automation capability of design cutting. By controlling the cutting speed and cutting depth by this method, the cutting quality can be guaranteed under the premise of ensuring the service life of the equipment, and on this basis, the cutting rate can be maximized, so that the cutting quality can be guaranteed while ensuring the cutting speed, thereby improving the cutting efficiency and improving the energy utilization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 The present invention provides a three-dimensional structural schematic diagram of a precision instrument laser cutting device.

[0055] Figure 2 The present invention provides a schematic structural diagram of a transverse feed member in a precision instrument laser cutting device.

[0056] Figure 3 The present invention provides a schematic structural diagram of a second correction component in a precision instrument laser cutting device.

[0057] Figure 4 This is a schematic structural diagram of a first correction component in a precision instrument laser cutting device proposed by the present invention.

[0058] Explanation of the accompanying drawings: conveying assembly 1, lifting drive member 2, driving motor 3, screw 4, track frame 5, lifting sliding block 6, lateral feed member 7, telescopic rod 8, lateral drive member 9, work table 10, rotating table 11, angle adjustment frame 12, angle adjustment member 13, laser cutter 14, correction assembly 15, first correction member 16, second correction member 17, second fixed frame 18, second correction strip 19, guide roller 20, second feed member 21, guide rod 22, first feed member 23, first fixed frame 24, first correction strip 25. DETAILED DESCRIPTION

[0059] Embodiments of the present disclosure are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present disclosure, and are not to be construed as limitations of the present disclosure. On the contrary, the embodiments of the present disclosure include all changes, modifications, and equivalents that fall within the spirit and connotation of the appended claims.

[0060] Example 1

[0061] refer to Figure 1 In this embodiment, a precision instrument laser cutting device is proposed, which is used to cut the raw materials of precision instruments, thereby improving the cutting quality and automation capability of the raw materials of precision instruments. The precision instrument laser cutting device may include:

[0062] The transmission component 1 is used to quantitatively transmit the raw materials of the precision instruments placed thereon, and the transmission direction can be parallel to the cutting surface of the raw materials. The cutting surface can be located on the side or top of the raw materials. The transmission component 1 needs to be transmitted smoothly, which can reduce the up and down shaking of the raw materials during the transmission process, thereby ensuring the accuracy of the cutting. Generally, the transmission component 1 is set horizontally, which can not only facilitate the transmission of the raw materials, but also better control the height of the cutting of the raw materials. Of course, some small angle tilt settings cannot be ruled out, and the specific details are not repeated here. In order to better improve the accuracy of the cutting, the transmission component 1 can include a plurality of transmission units, and each transmission unit is sequentially connected end to end on the same plane in the transmission direction, so that a segmented transmission can be formed. Through the segmented setting, the transmission length of each transmission unit can be shortened, and this method can increase the stability of the transmission. Each transmission unit can be installed on a bracket, and the bracket forms a supporting base to ensure the installation stability and transmission height of the transmission component 1. The transmission component 1 can be a transmission belt structure, which is specifically a prior art and is not repeated here.

[0063] The correction component 15 is installed on the conveying component 1 and is used to correct the position of the raw materials and equipment conveyed on the conveying component 1 by clamping. Thus, the placement position of the raw materials and equipment can meet the cutting requirements. The correction component 15 may include a first correction member 16 and a second correction member 17. The second correction member 17 and the second correction member 17 can be a clamping structure that can slide relative to each other. The raw materials and equipment on the conveying component 1 are quantitatively fed and clamped on both sides by the relative sliding of the first correction member 16 and the second correction member 17, so that the position of the raw materials and equipment on the conveying component 1 can be corrected. The second correction member 17 is arranged on both sides of the conveying component 1 opposite to the first correction member 16. The first correction member 16 pushes the raw materials and equipment on the conveying component 1 horizontally in the vertical conveying direction through the inclined guide of the fixed feed amount, and the second correction member 17 quantitatively limits the horizontal push of the raw materials and equipment. Here, we can assume that the conveying direction of the conveying component 1 is longitudinal, and the transmission is basically horizontal transmission. The direction perpendicular to the longitudinal direction and parallel to the conveying plane is transverse, and the first correction member 16 and the second correction member 17 are arranged relatively in the transverse direction. The first correcting member 16 and the second correcting member 17 are relatively slidably clamped to correct the position, so that the raw material can be conveyed at a fixed lateral position on the conveying assembly 1, thereby facilitating quantitative cutting. Figure 4The first correcting member 16 may include a first fixing frame 24, a first feeding member 23 and a first correcting strip 25. The first fixing frame 24 is fixedly mounted on the side wall of the conveying assembly 1. The first feeding member 23 is mounted on the first fixing frame 24. The output end of the first feeding member 23 is fixedly connected to the first correcting strip 25. The first correcting strip 25 may include a straight edge portion and a beveled edge portion. The straight edge portion is consistent with the conveying direction of the conveying assembly 1. The beveled edge portion is fixedly connected to one end of the straight edge portion. The beveled edge portion is located in front of the conveying direction of the straight edge portion. The angle between the straight edge portion and the beveled edge portion is 120-150°. Of course, other numerical settings are not excluded. The specific details are not repeated here. When the raw materials are conveyed on the conveying assembly 1, the feeding amount can be determined according to the type and model of the raw materials, and then the driving amount of the first feeding member 23 can be controlled. Under the action of the first feeding member 23, the feeding drive can be quantitatively fed, so that the quantitative lateral sliding of the first correction bar 25 can be controlled. The beveled edge guides the raw materials conveyed on the conveying assembly 1, and is laterally restricted by the second correction member 17, and then the position is corrected by the straight portion of the first correction member 16. The edge of the first correction bar 25 is fixedly provided with a guide rod 22, and the guide rod 22 is slidably nested inside the first fixed frame 24, so that the first correction bar 25 can slide smoothly. The number of the guide rods 22 can be set to two, thereby increasing the stability of the sliding of the first correction bar 25. Specifically, a linear bearing can be fixedly provided at a relative position inside the first fixed frame 24, and the number of the linear bearings corresponds to the guide rods 22 one by one. The guide rods 22 are slidably sleeved inside the linear bearings, thereby reducing the friction of the guide, so as to make the sliding smoother. The clamping surface of the first correction bar 25 is rotatably provided with a plurality of guide rollers 20, and the guide rollers 20 are linearly distributed. The setting of the guide rollers 20 can reduce the clamping friction during the conveying process of the raw material, making the conveying smoother. The structure of the second correction piece 17 can be similar to that of the first correction piece 16. Figure 3 The second correcting member 17 may include a second fixed frame 18, a second feeding member 21 and a second correcting strip 19. The second fixed frame 18 is fixedly mounted on the side wall of the conveying assembly 1, and the second feeding member 21 is mounted on the second fixed frame 18. The output end of the second feeding member 21 is fixedly connected with the second correcting strip 19. When the raw material equipment is conveyed on the conveying assembly 1, the feeding amount can be determined according to the model of the raw material equipment, and then the driving amount of the second feeding member 21 can be controlled. Under the action of the second feeding member 21, the feeding drive can be quantitatively fed, so that the quantitative lateral sliding of the second correcting strip 19 can be controlled, so as to perform lateral quantitative restriction. The second correcting strip 19 can be arranged in a linear shape, and the details are not repeated here.

[0064] The laser cutting assembly is installed on the transmission assembly 1 and is used to cut the cutting surface of the raw material equipment on the transmission assembly 1. The laser cutting assembly can be set directly above or on the side of the transmission assembly 1, or both directly above and on the side are set for coordinated operation, which will not be described in detail here. Here we take the installation on the side as an example. The laser cutting assembly may include a lifting drive 2, a lateral feed member 7, a rotation adjustment structure and a laser cutter 14. The lifting drive 2 is installed on the transmission assembly 1, and the lifting drive 2 is used to adjust the cutting height. The lateral feed member 7 is connected to the lifting drive 2 to adjust the lateral feed amount of the cutting, so as to be suitable for the surface convexity and concavity of the raw material equipment and improve the applicability of the equipment. The rotation adjustment structure is connected to the lateral feed member 7 to adjust the cutting angle, so as to be suitable for various cutting method requirements. The laser cutter 14 is installed on the lateral feed member 7 for emitting laser for cutting. The specific structure of the laser cutter 14 is the prior art and will not be described in detail here. The lifting drive member 2 may include a driving motor 3, a screw rod 4, a track frame 5 and a lifting slide block 6. The track frame 5 may be a vertically arranged rod-shaped structure or a gantry structure. A vertical track structure is arranged on the track frame 5, and a lifting slide block 6 is slidably arranged on the track frame 5. The driving motor 3 is fixedly installed on the track frame 5, and the output shaft of the driving motor 3 is coaxially fixedly connected with the screw rod 4, and the axial direction of the screw rod 4 is consistent with the guide direction of the track structure. The lifting slide block 6 is nested in the screw rod 4. Under the drive of the driving motor 3, the screw rod 4 rotates so that the lifting height of the lifting slide block 6 can be adjusted. The driving motor 3 may also be provided with an output metering device so that the output of the driving motor 3 can be controlled, so as to quantitatively control the height of the lifting slide block 6. The specific prior art is not described here. The track frame 5 may be a vertically arranged rectangular structure, and the track structure is provided with two and opposite sides in a rectangular shape, and the two sides of the lifting slide block 6 are slidably sleeved on the track structure. Through the setting of this structure, the sliding stability of the lifting slide block 6 can be increased. The lifting drive member 2 can also be a synchronous belt structure. The synchronous belt setting can make the lifting slide block 6 slide more smoothly. The specific details are prior art and will not be elaborated here. The transverse feed member 7 is installed on the lifting slide block 6, and is used to control the cutting feed amount in the transverse direction. The transverse feed member 7 may include a transverse drive member 9 and a telescopic rod 8. One end of the telescopic rod 8 is fixedly connected to the lifting slide block 6, and the telescopic rod 8 can be set horizontally. The transverse drive member 9 is installed on the lifting slide block 6, and its output end is connected to the other end of the telescopic rod 8. The transverse drive member 9 is used to drive the telescopic rod 8 to extend and retract laterally, thereby controlling the transverse distance between the laser cutter 14 and the cutting surface of the raw material equipment. Reference Figure 3The telescopic rod 8 may include a plurality of mutually slidably sleeved unit rods and track plates, the unit rods are axially slidably sleeved in turn inside and outside, and generally the number of unit rods may be 3. The unit rod may include an intermediate rod and an end rod, the end rod includes an inner rod and an outer rod, the inner rod is at the innermost side of all unit rods, the intermediate rod is sleeved outside the inner rod and slidably sleeved in turn, and the end rod is sleeved on the outermost intermediate rod. The sides of the outer rod and the intermediate rod are provided with mounting grooves, the mounting grooves are in the same straight line, and two mounting grooves are arranged oppositely up and down, the track plate is fixedly installed in the mounting groove, and each track plate is slidably sleeved in turn, the track plate may include a single-sided guide rail and a double-sided guide rail, the single-sided guide rail is fixedly installed on the inner rod and the outer rod, the double-sided guide rail is installed on the intermediate rod, and the single-sided guide rail and the double-sided guide rail are slidably sleeved in turn, thereby increasing the stability and linearity of the telescopic rod 8, avoiding the height change of the laser cutter 14 caused by its gravity deflection and the increase in length, and making the position of the laser cutter 14 shooting more stable and accurate. The single-sided guide rail can be a single-sided guide rail structure, and the double-sided guide rail can be a double-sided guide rail structure, and its specific structure is not repeated here. When the telescopic rod 8 is installed, the inner rod of the unit rod is fixedly installed on the lifting sliding block 6, and the output end of the transverse driving member 9 is rotatably connected with the outer rod. The transverse driving member 9 can be an electric telescopic rod, a hydraulic rod, a pneumatic rod, etc. The transverse driving member 9 is provided with two and is located on both sides of the telescopic rod 8. The extrusion force can offset each other, avoiding the deflection force causing the telescopic rod 8 to bend and cause cutting errors. The rotation adjustment structure is installed on the telescopic rod 8 and connected to the laser cutter 14 to adjust the cutting angle of the laser cutter 14. The rotation adjustment structure can include a workbench 10, a rotating table 11, an angle adjustment frame 12 and an angle adjustment member 13, and the workbench 10 is fixedly installed at the end of the telescopic rod 8. The workbench 10 can be vertically arranged, and the rotating table 11 is rotatably installed on the workbench 10, and the rotating table 11 is connected to the rotation driving structure. Under the action of the rotation drive structure, the rotating table 11 rotates quantitatively, the angle adjustment frame 12 is rotationally connected to the rotating table 11, the angle adjustment member 13 is rotationally mounted on the rotating table 11 and its output end is rotationally connected to the side wall of the angle adjustment frame 12, and the laser cutter 14 is fixedly mounted on the end of the angle adjustment frame 12. Under the action of the angle adjustment member 13, the angle adjustment frame 12 rotates on the rotating table 11, so that the cutting angle of the laser cutter 14 can be adjusted. The rotation drive structure may include: an adjustment motor, a worm gear and a worm, the adjustment motor is fixedly mounted on the workbench 10, the worm gear is rotationally mounted on the workbench 10 and is coaxially fixedly connected with the output shaft of the adjustment motor, the worm gear is coaxially fixedly connected with the rotating table 11, and the worm gear and the worm gear are meshed. Under the drive of the adjustment motor, the worm gear rotates the rotating base table surface through the worm gear, thereby completing the fixed angle rotation of the laser cutter 14. Of course, the rotation drive structure can also be a gear drive structure, which will not be described in detail here.A zero sensor can be provided between the rotating table 11 and the working table 10. The zero sensor can be used to calibrate the rotation angle of the rotating table 11 to zero, and then the rotation angle can be controlled by the output of the rotating drive structure. The zero sensor can be a photosensor. The photosensor can include a light source generator and a light source receiver. The light source generator and the light source receiver are respectively provided at relative positions of the working table 10 and the rotating table 11. When the rotation angle of the rotating table 11 is zero, the light source emitted by the light source generator is received by the light source receiver, thereby calibrating the rotation angle of the rotating table 11. We can calibrate this angle to zero, and then calibrate the rotation angle of the rotating table 11 with the output of the rotating drive structure. By providing the light source generator and the light source receiver, the positioning is accurate and sensitive.

[0065] The image acquisition module is installed on the side of the conveying component 1, and is used to photograph the raw material equipment on the conveying component 1, so as to obtain the photographed pictures of the raw material equipment. Because the lateral position of the raw material equipment has been corrected, the image acquisition module can be installed to capture the image of the side of the conveying component 1. The image acquisition module can be a high-definition camera, a still camera, etc., and the details are not repeated here.

[0066] The controller is connected to the transmission component 1, the correction component 15, the laser cutting component, and the image acquisition module. The controller can obtain the type and model of the raw material equipment. The type and model of the raw material equipment can be obtained by manual input, and then the correction component 15 is controlled by the lateral width of the type and model of the raw material equipment to correct the lateral placement position of the raw material equipment. Specifically, we can design according to experience or experiments, obtain the feed amount according to the first correction piece 16 and the second correction piece 17 respectively, and prepare the raw material equipment type model-output amount information table in advance. The specific content of the information table is not the subject of protection of this application, and will not be repeated here. Then the controller corrects the position of the raw material equipment according to the output. Then the equipment model is obtained according to the type and model of the raw material equipment. The equipment model can be obtained by making a three-dimensional equipment model in advance according to the type and model of each equipment and the cutting requirements. The cutting requirements include the position of the cutting path on the equipment model and the corresponding cutting depth. The specific method for making the three-dimensional model is a prior art, and will not be repeated here. The types, models and corresponding equipment models of each equipment are used to make a type, model-equipment model information table, and then the type and model-equipment model information table is searched through the types and models of the raw material equipment, so that the required equipment model can be obtained. Of course, the equipment model acquisition method can also start the image acquisition module to shoot the raw material equipment to obtain the photographed pictures, and the photographed pictures are combined to obtain the combined three-dimensional model. The combined three-dimensional model is obtained by combining pictures. It is a prior art, and the specific details are not repeated here. The equipment features are extracted from the combined three-dimensional model. The equipment features can be the length, width, height of the equipment or the shape of the raw material equipment, etc., which are not repeated here, and then the pre-worth feature-equipment model information table is searched through the equipment features to obtain the equipment model. Then the cutting parameters are obtained through the equipment model. The cutting parameters can include the type of equipment, the cutting path, and the cutting depth corresponding to each point of the cutting path, etc., which are not repeated here. When we make the equipment model, we can design the type of equipment, the cutting pattern, the cutting path of each pattern, and the cutting depth corresponding to the point. The cutting pattern includes the cutting contour and internal pattern of the equipment model. The cutting contour is the equipment model to remove the existing contour of the equipment. The cutting of the cutting contour is basically a through-cutting, and the cutting depth is the thickness of the equipment. The specific details are not repeated here. Construct a spatial coordinate system, the x-axis of the spatial coordinate system can be the longitudinal direction, the y-axis is the transverse direction, and the z-axis is the height. Of course, other settings are not excluded. For the convenience of calculation, the origin of the spatial coordinate system can be the location of the base point of the equipment model. For example, the lower left corner of the equipment model, etc., the specific details are not repeated here.The controller analyzes the captured image, obtains the base point of the raw material equipment in the image captured at the current time point, places the raw material equipment in the spatial coordinate system, and obtains the cutting distance L of the current raw material equipment. The cutting distance L can be obtained by calculation through a reference point, which can be the above-mentioned base point. The coordinates of the current reference point (x', y', z') are calculated, and then the coordinates of the reference point during cutting (x0, y0, z0) are obtained, and then the cutting distance is calculated. And make real-time corrections according to the position, so as to obtain the distance between the current raw material equipment and the cutting position point. And judge whether the cutting distance L of the current raw material equipment is equal to a preset standard buffer distance L 标 If yes, the controller controls the conveying component 1 to decelerate and reduce the conveying speed of the conveying component 1 to a preset standard conveying speed v 标 , preset standard buffer distance L 标 It can be the optimal deceleration distance of the conveyor component 1. Generally, the standard buffer distance Of course, in this case, the conveyor component 1 performs uniform deceleration motion, where v0 is the initial conveying speed of the conveyor component 1, and a is the optimal deceleration of the conveyor component 1. The deceleration value needs to take into account the deceleration capacity of the conveyor component 1, the friction of the conveyor component 1, and the center of gravity of the raw material equipment, etc. It can be obtained through experience and experiments, and is generally 0.1m / s 2 -1m / s 2 The standard transmission speed v 标It can be the standard speed in the cutting process of the raw material equipment, and its value can be the average speed in the cutting process of the raw material equipment, or it can be the median of the cutting speed, so that the speed change of the raw material equipment in the cutting process can be ensured, the switching speed is fast, and it is not easy to cause the raw material equipment to move. The controller controls the transmission component 1 to transmit the raw material equipment to the cutting position, implants the equipment model into the spatial coordinate system, and overlaps with the raw material equipment to be cut at present, and obtains the cutting path and its corresponding cutting depth according to the cutting parameters. The controller obtains the corresponding maximum suitable spot diameter of the cutting according to the precision instrument, and then controls the cutting spot diameter of the laser cutter 14 to be the maximum suitable spot diameter. It is well known that in general, the smaller the spot of the cutting focus, the better, and the higher the cutting quality will be, but the requirements for the laser cutter 14 are also high, which will affect the service life of the equipment. When the spot is too small, it is also easy to cause burns or severe adhesion. The corresponding maximum suitable spot diameter for cutting can be determined according to the properties of the material and the requirements of the precision instrument to be made. Different raw materials have different properties, and their most suitable spot sizes and laser frequencies are different, and the requirements for different precision instruments are also different. Therefore, we need to make a matching table of the most suitable spot diameter for various raw materials, equipment and precision instruments through experiments in advance. Then, we can find the information table through the types of raw materials and equipment and precision instruments to obtain various suitable spot diameters, and then obtain the largest one as the maximum suitable spot diameter, so that the equipment can be protected to the maximum extent and the service life and cutting quality of the laser cutter 14 can be improved. We can determine the laser power and focal length of the laser cutter 14 by the maximum suitable spot diameter. The specific determination method is the existing technology and will not be repeated here. This method can determine the laser power and focal length of the laser cutter 14, avoiding the reduction of service life and equipment burden caused by excessive load of the laser cutter 14, and facilitating the improvement of equipment service life. For example, we cut the pad of a device, and its raw material is a square steel. Then we obtain the maximum suitable spot diameter of 40 microns by looking up the table, and other specific values ​​are not repeated here. Control the transmission component 1 and the laser cutting component to move together, so that the laser cutter 14 cuts the raw material equipment according to the cutting path. The coordinated movement method may include obtaining the current coordinate point of the movement path and determining the cutting vector of the equipment model according to the current coordinate point. The method for obtaining the cutting vector may include: obtaining the current coordinate point of the moving path, then obtaining the cross section of the current coordinate point of the moving path, and obtaining the intersection line of the cross section and the moving path at the current coordinate. The method for obtaining the intersection line is the intersection line of two surfaces, which will not be described in detail here. The starting point (x1, y1, z1) and the end point (x2, y2, z2) of the intersection line, the starting point can be the intersection point of the intersection line and the surface of the equipment model, and the cutting vector is (x2-x1, y2-y1, z2-z1), and then the controller controls the transmission component 1 and the laser cutting component to control the cutting position point with (x1, y1, z1). Control the laser cutting assembly so that the cutting direction of the laser cutter 14 is consistent with the cutting vector Overlapping for cutting, this method can be used for control, and the positioning of the cutting direction and the control of the cutting point can be completed quickly. Through vector control, the control is precise and easy to adjust in real time. It can be applied to various cutting paths and will not be affected by the surface shape of the raw materials and equipment. It has strong applicability. The specific control method may include: controlling the angle of the angle adjustment frame 12 to be the angle ɑ through the angle adjustment member 13. The driving amount and angle relationship control of the angle adjustment member 13 can be obtained through experiments. It is a prior art and will not be described here. Angle Then the rotation adjustment structure is controlled to drive the rotating platform 11 to rotate by an angle β. At this time, the angle of the rotating table 11 can be calibrated by the x-axis, and the details are not repeated here. The driving height of the controller lifting and lowering sliding block 6 can be Wherein l is the effective overall length of the angle adjustment frame 12 and the laser cutter 14, which can be calculated by the sum of the axial lengths of the angle adjustment frame 12 and the laser cutter 14, and the details are not repeated here. l0 is the optimal cutting spacing, which can be determined according to the cutting performance of the laser cutter 14, generally 100-500mm, of course, other values ​​are not excluded, and the details are not repeated here. H0 is the difference between the spatial coordinate system and the adjustment basis of the lifting and sliding block 6. It can be considered that the position height of the lifting and sliding block 6 in the spatial coordinate system when the adjustment height is 0, and the details are not repeated here. Control the feed length of the telescopic rod 8 to be Where S0 is the y-axis value of the rotating table 11 when the feeding amount of the telescopic rod 8 is 0, and the specific details are not repeated here. The control transmission component 1 moves to move the equipment model to adjust the x-axis position, and the transmission lateral position of the transmission component 1 Of course, it can also be controlled by other methods, which will not be described in detail here. According to the current equipment material, the optimal laser intensity Li is obtained. When performing laser cutting, different materials have different laser intensities. Too high laser intensity will increase the load of the equipment, reduce the service life of the equipment, and cause damage to the material, ablation spots and scratches. If the laser intensity is too small, it will cause incomplete cutting or reduced cutting efficiency. Li is the optimal cutting laser intensity of the laser cutter 14 at the adapted laser frequency. Generally speaking, the laser intensity range of the laser cutting machine can range from a few millijoules per square centimeter to tens of millijoules per square centimeter. For example, for thicker metal sheets, a higher laser intensity may be required to achieve the ideal cutting effect; while for non-metallic materials, a lower laser intensity may be required. Then the current cutting speed v is calculated according to the cutting depth of the current cutting point, and the cutting speed is controlled to v to move the cutting path for cutting. The cutting speed can be a uniform motion and then adjust the laser intensity of the laser cutter 14. In this case, it is necessary to increase the laser intensity of the laser cutter 14, which will cause the laser cutter 14 to be adjusted too frequently, which is not conducive to the maintenance of the equipment, and it will also easily cause material damage. The method for obtaining the current cutting speed v may include: obtaining the coordinates of the current cutting point and the cutting depth h, and then calculating the cutting speed of the current cutting point. Where h is the cutting depth of the current cutting point, the specific value is (x2-x1) 2 +(y2-y1) 2 +(z2-z1) 2 , which is not simply the horizontal coordinate depth, and will not be described in detail here. δ is the absorption rate of the raw material material to the laser, which can be obtained by conducting experiments on the material in advance, and its value is generally 0.5-1. Of course, other value settings are not excluded, and will not be described in detail here. ε is the unit laser intensity cutting rate, and its unit is generally cm 3 / ws or cm 3 / mJs, it must be consistent with the cutting depth when calculating. On the basis of this calculation model, we assume that the cutting depth of the raw material equipment does not change much to ensure the accuracy of its numerical calculation. η is the adjustment coefficient, and its value needs to be obtained through experiments in advance. The value range is generally 0.5-1.5. Its value needs to take into account the material and the laser intensity itself, which will not be elaborated here. The cutting speed calculated by this method is accurate, and the characteristics of the material itself can be taken into account. Different cutting depths can be applied, so that quantitative processing can be performed, which makes quantitative cutting possible, and the control is precise, improving the cutting quality. R is the effective diameter of the spot of the laser cutter 14, which can be determined according to the characteristics of the spot. Its value generally ranges from a few microns to tens of microns, which will not be elaborated here. Then determine whether the current cutting speed v is less than a preset standard cutting speed v标 If not, the cutting point is controlled to move along the cutting path according to the current cutting speed v for cutting. If yes, the required laser intensity Li' is calculated. The required laser intensity And determine whether the required laser intensity Li' is greater than a preset standard laser intensity Li 标 , standard laser intensity Li 标 It depends on the performance of the laser cutter 14 and the properties of the raw materials. It can be obtained through experiments to ensure that the equipment is not damaged and the material is not damaged. The specific value ranges from a few millijoules to tens of millijoules, which will not be described here. If yes, control the laser cutter 14 to use the standard laser intensity Li 标 Cutting is performed, if not, the laser cutter 14 is controlled to cut with the required laser intensity Li'. The speed calculation method is as above and will not be repeated here. By controlling the cutting speed and cutting depth by this method, the cutting quality can be guaranteed under the premise of ensuring the service life of the equipment, and on this basis, the cutting rate can be maximized, so that the cutting quality can be guaranteed while the cutting speed can be guaranteed, thereby improving the cutting efficiency and improving the energy utilization efficiency.

[0067] Example 2

[0068] Based on the above-mentioned precision instrument laser cutting device, the present invention also proposes a precision instrument laser cutting method, which includes the following steps:

[0069] S1. Obtain the types and models of raw materials and equipment.

[0070] S2. According to the type and model of the raw material equipment, the correction component 15 is controlled to correct the lateral placement position of the raw material equipment.

[0071] S3. Obtain the equipment model according to the type and model of the raw material equipment.

[0072] S4, constructing a spatial coordinate system, controlling the transmission component 1 to decelerate and reduce the transmission speed of the transmission component 1 to a preset standard transmission speed v 标 Transport raw materials to the cutting position.

[0073] S5. Implant the equipment model into the space coordinate system and overlap it with the raw material equipment to be cut, so as to obtain the cutting path and its corresponding cutting depth h.

[0074] S6. Obtain the corresponding maximum suitable cutting spot diameter according to the precision instrument, and determine the cutting spot of the laser cutter 14 according to the maximum suitable cutting spot diameter.

[0075] S7, controlling the transmission component 1 and the laser cutting component to move in coordination, so that the laser cutter 14 cuts the raw material according to the cutting path.

[0076] S8. Obtain the optimal laser intensity Li according to the current equipment material.

[0077] S9. Calculate the current cutting speed v according to the cutting depth of the current cutting point.

[0078] S10, determine whether the current cutting speed v is less than a preset standard cutting speed v 标 If no, execute S11; if yes, execute S12.

[0079] S11, controlling the cutting point to move along the cutting path at the current cutting speed v for cutting.

[0080] S12, calculate the required laser intensity Li'.

[0081] S13, judging whether the required laser intensity Li' is greater than a preset standard laser intensity Li 标 If yes, execute S14; if no, execute S15.

[0082] S14, control the laser cutter 14 to a standard laser intensity Li 标 Make the cut.

[0083] S15, controlling the laser cutter 14 to perform cutting at the required laser intensity Li'.

[0084] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this disclosure can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solutions disclosed in this disclosure can be achieved, and this document does not limit this.

[0085] The above specific implementations do not constitute a limitation on the protection scope of the present disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A precision instrument laser cutting device, characterized in that: The precision instrument laser cutting device comprises: A conveying component, which is used to quantitatively convey the raw materials of the precision instruments placed thereon; A correction component is installed on the conveying component and is used to correct the position of the raw material equipment on the conveying component by clamping; A laser cutting assembly is installed on the conveying assembly and is used to cut the cutting surface of the raw material on the conveying assembly; An image acquisition module is installed on the side of the conveying component, and is used to photograph the raw materials and equipment on the conveying component to obtain photographic images of the raw materials and equipment; The controller obtains the type and model of the raw material equipment; controls the correction component to correct the lateral placement position of the raw material equipment according to the type and model of the raw material equipment; obtains the equipment model according to the type and model of the raw material equipment; constructs a spatial coordinate system, determines the position of the raw material equipment by taking pictures, controls the transmission component to decelerate and reduce the transmission speed of the transmission component to a preset standard transmission speed v 标 Transport the raw material equipment to the cutting position; implant the equipment model into the spatial coordinate system and overlap it with the raw material equipment to be cut, obtain the cutting path and its corresponding cutting depth h; obtain the corresponding maximum suitable spot diameter for cutting according to the precision instrument, and determine the cutting spot of the laser cutter with the maximum suitable spot diameter for cutting; control the coordinated movement of the transport component and the laser cutting component to enable the laser cutter to cut the raw material equipment according to the cutting path; obtain the optimal laser intensity Li according to the current equipment material; calculate the current cutting speed v according to the cutting depth of the current cutting point; determine whether the current cutting speed v is less than a preset standard cutting speed v 标 If not, the cutting point is controlled to move along the cutting path according to the current cutting speed v for cutting; if yes, the required laser intensity Li' is calculated; and then it is determined whether the required laser intensity Li' is greater than a preset standard laser intensity Li 标 If yes, the laser cutter is controlled to operate at the standard laser intensity Li 标 if not, the laser cutter is controlled to cut at the required laser intensity Li'.

2. The precision instrument laser cutting device according to claim 1, characterized in that: The correction component includes a first correction piece and a second correction piece. The second correction piece is arranged on both sides of the conveying component opposite to the first correction piece. The first correction piece pushes the raw material equipment on the conveying component laterally in the vertical conveying direction through the inclined plane guide with a fixed feed amount, and the second correction piece quantitatively limits the lateral push of the raw material equipment.

3. The precision instrument laser cutting device according to claim 2, characterized in that: The first correcting member includes a first fixed frame, a first feeding member and a first correcting bar. The first fixed frame is fixedly mounted on the side wall of the conveying assembly. The first feeding member is mounted on the first fixed frame. The output end of the first feeding member is fixedly connected to the first correcting bar. The first correcting bar includes a straight edge portion and a beveled edge portion. The beveled edge portion is fixedly connected to one end of the straight edge portion. The beveled edge portion is located on the front side of the conveying direction of the straight edge portion.

4. The precision instrument laser cutting device according to claim 3, characterized in that: A plurality of guide rollers for reducing transmission friction are rotatably arranged on the clamping surface of the first correction bar, and the guide rollers are linearly distributed.

5. The precision instrument laser cutting device according to claim 1, characterized in that: The laser cutting assembly includes a lifting drive, a transverse feeding member, a rotating direction adjustment structure and a laser cutter. The lifting drive is installed on the transmission assembly, and the lifting drive is used to adjust the cutting height; the transverse feeding member is connected to the lifting drive, and is used to adjust the transverse feed amount of the cutting; the rotating direction adjustment structure is connected to the transverse feeding member, and is used to adjust the cutting angle; the laser cutter is installed on the transverse feeding member, and is used to emit laser for cutting.

6. The precision instrument laser cutting device according to claim 5, characterized in that: The lifting drive component includes a driving motor, a screw rod, a track frame and a lifting sliding block. The track frame is provided with a vertical track structure, and a lifting sliding block is slidably provided on the track frame. The driving motor is fixedly installed on the track frame. The output shaft of the driving motor is coaxially fixedly connected with the screw rod. The axial direction of the screw rod is consistent with the guide direction of the track structure, and the lifting sliding block is nested in the screw rod.

7. The precision instrument laser cutting device according to claim 5, characterized in that: The transverse feeding member includes a transverse driving member and a telescopic rod. One end of the telescopic rod is fixedly connected to the lifting sliding block. The transverse driving member is installed on the lifting sliding block. Its output end is connected to the other end of the telescopic rod. The transverse driving member is used to drive the telescopic rod to extend and retract transversely.

8. The precision instrument laser cutting device according to claim 7, characterized in that: The telescopic rod includes a plurality of unit rods and track plates that are slidably sleeved against each other, the unit rods are axially slidably sleeved in turn inside and outside, the unit rods include an intermediate rod and an end rod, the end rods include an inner rod and an outer rod, the inner rod is at the innermost side of all the unit rods, the intermediate rod is sleeved outside the inner rod and slidably sleeved in turn, and the end rod is sleeved on the outermost intermediate rod; mounting grooves are provided on the sides of the outer rod and the intermediate rod, the mounting grooves are in the same straight line, two mounting grooves are arranged opposite to each other up and down, the track plate is fixedly installed in the mounting groove, and each track plate is slidably sleeved in turn, the track plate includes a single-sided guide rail and a double-sided guide rail, the single-sided guide rail is fixedly installed on the inner rod and the outer rod, the double-sided guide rail is installed on the intermediate rod, and the single-sided guide rail and the double-sided guide rail are slidably sleeved in turn.

9. The precision instrument laser cutting device according to claim 5, characterized in that: The rotation and direction adjustment structure includes a workbench, a rotating table, an angle adjustment frame and an angle adjustment member. The workbench is fixedly installed on the end of the telescopic rod, the rotating table is rotatably installed on the workbench, and the rotating table is connected to a rotation driving structure; the angle adjustment frame is rotatably connected to the rotating table, the angle adjustment member is rotatably installed on the rotating table and its output end is rotatably connected to the side wall of the angle adjustment frame, and the laser cutter is fixedly installed on the end of the angle adjustment frame.

10. A method for laser cutting of precision instruments and equipment, characterized in that: The steps include: S1. Obtain the types and models of raw materials and equipment; S2. Control the correction component to correct the lateral placement of the raw material equipment according to the type and model of the raw material equipment; S3, obtaining the equipment model through the type and model of the raw material equipment; S4, construct a spatial coordinate system, control the transmission component to decelerate and reduce the transmission speed to a preset standard transmission speed v 标 Transport raw materials and equipment to the cutting position; S5, implanting the equipment model into the spatial coordinate system and overlapping it with the raw material equipment to be cut, and obtaining the cutting path and its corresponding cutting depth h; S6. Obtain the corresponding maximum suitable spot diameter for cutting according to the precision instrument, and determine the cutting spot of the laser cutter according to the maximum suitable spot diameter for cutting; S7, controlling the transmission component and the laser cutting component to move in coordination, so that the laser cutter cuts the raw material according to the cutting path; S8. Obtain the most suitable laser intensity Li according to the current equipment material; S9, calculating the current cutting speed v according to the cutting depth of the current cutting point; S10, determine whether the current cutting speed v is less than a preset standard cutting speed v 标 , if not, execute S11; If yes, execute S12; S11, controlling the cutting point to move along the cutting path according to the current cutting speed v for cutting; S12, calculate the required laser intensity Li'; S13, judging whether the required laser intensity Li' is greater than a preset standard laser intensity Li 标 If yes, execute S14; if no, execute S15; S14, control the laser cutter to a standard laser intensity Li 标 Make a cut; S15, controlling the laser cutter to perform cutting at the required laser intensity Li'.

Images