Automatic laser cutting device for sheet metal parts

Abstract

The invention discloses an automatic laser cutting device for sheet metal parts, and belongs to the technical field of sheet metal part cutting, the automatic laser cutting device comprises a workbench and a laser cutter arranged in the middle of the workbench, and further comprises a placing frame, a positioning roller, a fixed-distance pushing mechanism, a bearing frame, an advancing transfer mechanism, an unloading frame and an unloading mechanism; through mutual cooperation of the fixed-distance conveying mechanism, the advancing transferring mechanism and the discharging mechanism, the sheet metal part can be primarily subjected to pressing positioning, laser cutting, horizontal conveying, inclined transferring and inclined discharging treatment on the workbench; and then through the multiple cooperation effects of the fixed-distance conveying mechanism, the advancing transferring mechanism and the discharging mechanism, fixed-distance conveying and feeding, pressing, positioning and cutting, movable inclined transferring and delayed rotating discharging treatment of the sheet metal parts can be achieved, the action cohesion of laser cutting treatment is obviously improved, and the equipment operation collaboration is high.

Description

Technical Field

[0001] The present invention belongs to the technical field of sheet metal cutting, and particularly relates to an automated laser cutting device for thin sheet metal parts. Background Art

[0002] Laser cutting uses a laser beam with a high energy density to irradiate a workpiece, causing the workpiece material to quickly melt, vaporize or reach the ignition point. At the same time, a high-speed gas flow coaxial with the beam is used to blow away the molten or vaporized material, thereby realizing the cutting of the workpiece. It mainly consists of a workbench, a laser generator, an optical system, a cutting head, a control system and a cooling system.

[0003] In the prior art, when laser cutting thin sheet metal parts, it generally needs to position the thin sheet metal parts to ensure the cutting progress and quality; when performing fixed-distance cutting on thin sheet metal parts, since accurate positioning of thin sheet metal parts is the basis for realizing automated loading and unloading and automatic cutting, when performing automated fixed-distance cutting on thin sheet metal parts, during the accurate positioning and automated loading and unloading of thin sheet metal parts, the lack of smoothness in the action connection will greatly reduce the cutting efficiency of thin sheet metal parts and reduce its degree of automated processing. Therefore, there is an urgent need for an automated laser cutting device for thin sheet metal parts to overcome the above defects. Summary of the Invention

[0004] The purpose of the present invention is to provide an automated laser cutting device for thin sheet metal parts to solve the problem of insufficient smoothness in the action connection between the accurate positioning and automated loading and unloading of thin sheet metal parts during automated fixed-distance cutting as proposed in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An automated laser cutting device for thin sheet metal parts, including a workbench and a laser cutter provided in the middle of the workbench, and further including:

[0006] A placement frame, the placement frame is arranged at the front end of the laser cutter and fixed to the top surface of the workbench. Two parallel positioning rollers are arranged above the placement frame, and a fixed-distance pushing mechanism cooperating with the positioning rollers is arranged between the placement frame and the laser cutter;

[0007] A receiving frame, the side of the receiving frame away from the placement frame is arranged and slidably installed on the inner wall of the workbench. A traveling transfer mechanism for conveying and transferring thin sheet metal parts is arranged around the receiving frame;

[0008] A discharge frame, the discharge frame is located outside the receiving frame and rotatably installed on the inner wall of the workbench. A discharge mechanism cooperating with the traveling transfer mechanism is arranged around the discharge frame.

[0009] It should be noted that the fixed-distance pushing mechanism includes:

[0010] A conveying roller, which is arranged outside the placing frame and rotatably connected to the inner wall of the workbench, and a stepping motor coaxially connected to the conveying roller is arranged at the outer end of the workbench;

[0011] There are four rotating sleeve rods, which are arranged in a rectangular shape and are rotatably installed on the outer surface of the workbench. The two ends of the positioning roller are rotatably installed inside the two rotating sleeve rods located on the same side. A rotating gear is coaxially fixed on the inner side of each rotating sleeve rod. An L-shaped rack rod is meshed and connected between two adjacent rotating gears, and a clamping piece is arranged between the two L-shaped rack rods.

[0012] As a preferred embodiment, the pressing member includes:

[0013] Limit rods, two of which are provided and fixed to the bottom surface of the workbench, and the bottom end of the L-shaped rack rod is slidably sleeved on the outer surface of the limit rod;

[0014] A clamping spring is provided with two clamping springs and respectively sleeved inside the two limit rods, and two ends of the clamping spring are respectively fixed to the bottom surface of the workbench and the bottom top surface of the L-shaped rack rod.

[0015] It is further worth noting that the travel transfer mechanism includes:

[0016] A fixed rack rod, the fixed rack rod is fixed to the inner wall of the workbench, a traveling gear is arranged above the fixed rack rod, and a driving motor coaxially connected with the traveling gear is installed on the bottom surface of the receiving frame;

[0017] A fixed frame, the fixed frame is fixed to the outer surface of the receiving frame, the inner wall of the fixed frame is rotatably connected with a flipping plate, a plurality of guide sleeves distributed at equal distances are fixed to the bottom surface of the receiving frame, a sliding rod is slidably penetrated through the inner wall of each guide sleeve, a pushing block fixed to the end of the sliding rod is fitted on the outer surface of the bottom of the flipping plate, a connecting frame is fixed to the other end of the sliding rod, and a plurality of rolling rods distributed obliquely downward are rotatably connected to the outer surface of the connecting frame;

[0018] The resistance bar is arranged on the periphery of the discharge frame and fixed to the inner wall of the workbench. A resistance rod fixed to the connecting frame is arranged below the rolling rod. The outer surface of the sliding rod is provided with a compression spring fixed to the opposite surfaces of the connecting frame and the guide sleeve.

[0019] As a preferred embodiment, the traveling transfer mechanism further includes:

[0020] A connecting rod, wherein a plurality of connecting rods are provided and fixed one by one to the outer surface of the bottom of the guide sleeve, and a roller is installed at one end of the connecting rod away from the guide sleeve;

[0021] A pressing block is fixed to the bottom opposite surfaces of the two L-shaped rack rods, and a top surface of the pressing block is provided with guide grooves which are matched with a plurality of rollers one by one.

[0022] It should be further explained that the unloading mechanism comprises:

[0023] Transmission gears: two transmission gears are provided and are coaxially fixed to the two ends of the discharge frame, and each transmission gear is meshedly connected with a pushing rack rod on its top;

[0024] A fixed sleeve, two fixed sleeves are provided and both are fixed to the top surface of the workbench, a support rod is slidably penetrated through the inner wall of each fixed sleeve, a sliding block is fastened to the outer surface of one end of the support rod, the sliding block is fixedly arranged with the pushing rack rod, a supporting spring fixed to the opposite surface of the fixed sleeve and the sliding block is provided on the periphery of the support rod, and a pushing rod adapted to the sliding block is fixed to the outer surface of the receiving frame.

[0025] As a preferred embodiment, the contact surface between the abutment bar and the discharge frame is a matching arc surface, and the distance from the push rod to the sliding block is greater than the distance from the abutment bar to the abutment bar.

[0026] As a preferred embodiment, a sliding groove is provided on the inner wall of the workbench, and the bottom of the sliding block is slidably installed inside the sliding groove.

[0027] Compared with the prior art, the present invention provides an automated laser cutting device for thin sheet metal parts, which has at least the following beneficial effects:

[0028] (1) Through the mutual cooperation of the fixed-distance conveying mechanism, the moving transfer mechanism and the unloading mechanism, the thin plate sheet metal parts can be initially pressed and positioned, laser cut, horizontally conveyed, tilted and unloaded on the workbench. Subsequently, through the multiple coordinated cooperation of the fixed-distance conveying mechanism, the moving transfer mechanism and the unloading mechanism, the fixed-distance conveying and loading, the pressing and positioning cutting, the mobile tilting transfer and the delayed rotation unloading of the thin plate sheet metal parts can be realized. The action connection of the laser cutting process is significantly improved, and the equipment operation is highly coordinated, which effectively improves the efficiency of multiple laser cutting processing of thin plate sheet metal parts.

[0029] (2) Through the cooperation between the traveling transfer mechanism and the fixed-distance conveying mechanism, the distance between the two positioning rollers and the placement frame can be fine-tuned, which can effectively improve the convenience of the initial push and positioning of the thin sheet metal parts on the placement frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 For the present inventionFigure 1 Schematic diagram of the enlarged structure of area A;

[0032] Figure 3 Schematic diagram of the structure at the abutting rod and push rod of the present invention;

[0033] Figure 4 of the present invention Figure 3 Schematic diagram of the enlarged structure of area B;

[0034] Figure 5 Schematic diagram of the structure at the unloading mechanism of the present invention;

[0035] Figure 6 Schematic diagram of the structure at the pressing member of the present invention;

[0036] Figure 7 of the present invention Figure 6 Schematic diagram of the enlarged structure of area C;

[0037] Figure 8 Schematic diagram of the structure at the turning plate of the present invention;

[0038] Figure 9 Partial schematic diagram of the structure at the traveling and transferring mechanism of the present invention;

[0039] Figure 10 of the present invention Figure 9 Schematic diagram of the enlarged structure of area D.

[0040] In the figure: 1, workbench; 2, laser cutter; 3, placement frame; 4, positioning roller; 5, fixed-distance pushing mechanism; 51, conveying roller; 52, stepping motor; 53, rotating sleeve rod; 54, rotating gear; 55, L-shaped rack bar; 56, pressing member; 561, limiting rod; 562, pressing spring; 6, receiving frame; 7, traveling and transferring mechanism; 71, fixed rack bar; 72, traveling gear; 73, driving motor; 74, fixed frame; 75, turning plate; 76, guiding sleeve; 77, sliding rod; 78, pushing block; 79, connecting frame; 710, rolling rod; 711, abutting strip; 712, abutting rod; 713, compression spring; 714, connecting rod; 715, roller; 716, pressing block; 717, guiding groove; 8, unloading frame; 9, unloading mechanism; 91, driving gear; 92, pushing rack bar; 93, fixed sleeve; 94, support rod; 95, sliding block; 96, support spring; 97, push rod. Detailed implementation manners

[0041] The present invention will be further described below in conjunction with embodiments.

[0042] In order to make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the following will clearly and completely describe the technical solutions of the embodiments of the present disclosure in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present disclosure.

[0043] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure shall have the ordinary meaning understood by those of ordinary skill in the art to which the present disclosure pertains. The terms "including" or "comprising" and the like used in the present disclosure mean that the elements or objects appearing before the term cover the elements or objects listed after the term and their equivalents, without excluding other elements or objects. The terms "connected" or "coupled" and the like are not limited to physical or mechanical connections, and may also include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0044] Please refer to Figures 1-10 , the present invention provides an automated laser cutting device for thin sheet metal parts, including a workbench 1 and a laser cutter 2 disposed in the middle of the workbench 1. It further includes a placement frame 3, which is arranged at the front end of the laser cutter 2 and fixed to the top surface of the workbench 1. Two parallelly distributed positioning rollers 4 are arranged above the placement frame 3, and a distance-determining pushing mechanism 5 that cooperates with the positioning rollers 4 is arranged between the placement frame 3 and the laser cutter 2;

[0045] It should be noted that the laser cutter 2 includes a laser generator, an optical system, a cutting head, a control system, and a cooling system. The laser in the laser cutter 2 is generated by the laser generator. The generated laser beam is transmitted and focused through the optical system. The high-energy density laser beam after focusing irradiates the surface of the thin sheet metal part, enabling the material to quickly absorb the energy of the laser and convert it into heat energy, causing the temperature to rise rapidly. When the temperature reaches the melting point of the material, the material begins to melt; when the temperature continues to rise and reaches the boiling point of the material, the material will vaporize into steam. Its cooling system cools components such as the laser generator and the cutting head to keep their operating temperatures within a reasonable range, and the control system precisely controls each component such as the laser generator and the cutting head by programming and inputting parameters such as the cutting path, speed, and power. In this case, the path of the cutting head of the laser cutter 2 is realized by means of gear-rack transmission and ball screw transmission to achieve its specific movement trajectory;

[0046] The positioning roller 4 and the fixed-distance pushing mechanism 5 are provided for accurately positioning the thin sheet metal parts and performing fixed-distance conveying processing when they are placed on the surface of the placement frame 3, so as to achieve fixed-distance pushing and accurate positioning processing of the thin sheet metal parts, thereby effectively improving the automation degree of feeding and accurate positioning for fixed-distance cutting processing of the thin sheet metal parts;

[0047] The receiving frame 6 is arranged on the side away from the placement frame 3 and is slidably installed on the inner wall of the workbench 1. A traveling transfer mechanism 7 for conveying and transferring the thin sheet metal parts is arranged on the periphery of the receiving frame 6;

[0048] It should be noted that the receiving frame 6 is provided for supporting and placing the thin sheet metal parts. After the thin sheet metal parts are laser cut by the laser cutter 2, through the setting of the traveling transfer mechanism 7, the laser-cut thin sheet metal parts are transferred by the movement of the receiving frame 6, realizing the automatic transfer processing of the laser-cut thin sheet metal parts, thereby improving the automation degree of its transfer processing;

[0049] The discharging frame 8 is located outside the receiving frame 6 and is rotatably installed on the inner wall of the workbench 1. A discharging mechanism 9 that cooperates with the traveling transfer mechanism 7 is arranged on the periphery of the discharging frame 8;

[0050] It should be noted that the discharging frame 8 is provided for transferring and receiving the thin sheet metal parts on the receiving frame 6. The discharging mechanism 9 is arranged to perform follow-up processing along with the traveling transfer mechanism 7. When the receiving frame 6 transfers the thin sheet metal parts to the front end of the discharging frame 8 through the traveling transfer mechanism 7, at this time, the discharging frame 8 moves synchronously with the discharging mechanism 9, so as to perform the movement transfer of the receiving frame 6 and the rotational discharging of the discharging frame 8 on the thin sheet metal parts, thereby improving the automation degree of the discharging processing of the thin sheet metal parts.

[0051] Furthermore, as shown in Figure 1 、 Figure 3 、 Figure 4 、 Figure 6 and Figure 8 shown, specifically, the fixed-distance pushing mechanism 5 includes a conveying roller 51. The conveying roller 51 is arranged outside the placement frame 3 and is rotatably connected to the inner wall of the workbench 1. A stepping motor 52 coaxially connected to the conveying roller 51 is arranged at the outer end of the workbench 1;

[0052] The rotating sleeve rods 53 are provided with four and are rotatably installed on the outer surface of the workbench 1 in a rectangular distribution. Both ends of the positioning roller 4 are rotatably installed inside two rotating sleeve rods 53 on the same side. A rotating gear 54 is coaxially fixed inside each rotating sleeve rod 53. An L-shaped rack bar 55 is commonly engaged and connected between two adjacent rotating gears 54. A pressing member 56 is arranged between the two L-shaped rack bars 55;

[0053] The pressing member 56 includes a limiting rod 561. There are two limiting rods 561, and both are fixed to the bottom surface of the workbench 1. The bottom end of the L-shaped rack bar 55 is slidably sleeved on the outer surface of the limiting rod 561;

[0054] Two pressing springs 562 are provided and are respectively sleeved inside the two limiting rods 561. The two ends of the pressing spring 562 are respectively fixed to the bottom surface of the workbench 1 and the bottom top surface of the L-shaped rack bar 55;

[0055] It should be noted that when the pressing member 56 is not affected by an external force, that is, when the pressing spring 562 is in its initial state, at this time, the two L-shaped rack bars 55 are at the highest positions outside the workbench 1. Through the meshing transmission between the L-shaped rack bar 55 and the rotating gear 54, the horizontal distance value between the two positioning rollers 4 is at the maximum value, and at the same time, the bottom surface of the positioning roller 4 is in contact with the top surface of the placement frame 3;

[0056] It should be noted that when positioning and installing a thin sheet metal part, only need to place the thin sheet metal part on the placement frame 3 and push it. Through the extrusion between the thin sheet metal part and the front positioning roller 4 until the front end of the thin sheet metal part to be cut is far away from the conveying roller 51, so that the thin sheet metal part is supported and placed on the bottom surface through the placement frame 3 and the conveying roller 51;

[0057] When the thin sheet metal part extrudes the positioning roller 4, the four rotating sleeve rods 53 can be synchronously rotated, and through the meshing transmission between the rotating gear 54 and the L-shaped rack bar 55, the pressing spring 562 is elastically stretched. Then, through the elastic resetting action of the pressing spring 562, the positioning roller 4 is pressed against the top surface of the thin sheet metal part to form a pressing and positioning treatment for the thin sheet metal part;

[0058] When the thin sheet metal part is pressed and positioned on the top surfaces of the placement frame 3 and the conveying roller 51 by the two positioning rollers 4, at this time, after the surface of the thin sheet metal part is laser cut by the laser cutter 2, the laser-cut thin sheet metal part is transferred to the rear of the workbench 1 through the receiving frame 6. And the thin sheet metal part to be laser cut again in the front is, at this time, due to the pressing action of the positioning roller 4, through the frictional action between the conveying roller 51 and the bottom surface of the thin sheet metal part, driven by the stepping motor 52, the conveying roller 51 is rotated, and by overcoming the pressing frictional force of the two positioning rollers 4, at this time, the thin sheet metal part is driven to be transported at a fixed distance on the top surface of the placement frame 3, so as to realize the fixed-distance transportation and pressing and positioning treatment of the thin sheet metal part.

[0059] Furthermore, as Figure 2 、 Figure 5 、 Figure 6 、 Figure 7 、Figure 8 , Figure 9 and Figure 10 As shown, it is worth to explain in detail that the traveling transfer mechanism 7 includes a fixed rack rod 71, the fixed rack rod 71 is fixed to the inner wall of the workbench 1, a traveling gear 72 is arranged above the fixed rack rod 71, and a driving motor 73 coaxially connected with the traveling gear 72 is installed on the bottom surface of the receiving frame 6;

[0060] A fixed frame 74 is fixed to the outer surface of the receiving frame 6, and a flipping plate 75 is rotatably connected to the inner wall of the fixed frame 74. A plurality of equally spaced guide sleeves 76 are fixed to the bottom surface of the receiving frame 6, and a sliding rod 77 is slidably penetrated through the inner wall of each guide sleeve 76. A pushing block 78 fixed to the end of the sliding rod 77 is fitted on the outer surface of the bottom of the flipping plate 75. A connecting frame 79 is fixed to the other end of the sliding rod 77, and a plurality of rolling rods 710 distributed obliquely downward are rotatably connected to the outer surface of the connecting frame 79;

[0061] The resistance bar 711 is arranged on the periphery of the discharge frame 8 and fixed to the inner wall of the workbench 1. A resistance bar 712 fixed to the connection frame 79 is arranged below the rolling rod 710. The outer surface of the sliding rod 77 is provided with a compression spring 713 fixed to the opposite surfaces of the connection frame 79 and the guide sleeve 76;

[0062] It should be noted that when the thin sheet metal part is pressed and positioned on the top surface of the placement frame 3 and the conveying roller 51 by the positioning roller 4, the part of the thin sheet metal part to be laser cut is located above the flipping plate 75 and the receiving frame 6, forming a preliminary receiving of the receiving frame 6 and the flipping plate 75;

[0063] It should be noted that after the thin sheet metal is laser cut by the laser cutter 2, the driving motor 73 drives the traveling gear 72 to rotate, and the traveling gear 72 rolls on the fixed rack rod 71, so that the receiving frame 6 slides on the top surface of the workbench 1, and the thin sheet metal that has been laser cut is slidably transferred;

[0064] When the resistance rod 712 moves with the receiving frame 6, until the resistance rod 712 contacts the resistance bar 711, the resistance rod 712 then drives the connecting frame 79 and the discharge frame 8 to move toward the receiving frame 6, and at the same time drives the compression spring 713 for compression processing. At this time, the sliding rod 77 slides in the guide sleeve 76, causing the push block 78 to move away from the receiving frame 6. Through the squeezing of the push block 78 and the flipping plate 75, the flipping plate 75 is rotated slightly, so that the end of the thin sheet metal part close to the flipping plate 75 is tilted upward, that is, the thin sheet metal part is distributed tilted downward between the flipping plate 75, the receiving frame 6 and the discharge plate. Through the slope of the inclined surface at this time, the thin sheet metal part that has been laser cut is tilted and unloaded and transferred to the top of the discharge frame 8, thereby completing the conveying and transfer processing of the thin sheet metal part that has been laser cut.

[0065] Further as Figure 5 , Figure 6 , Figure 9 and Figure 10 As shown, it is worth to explain in detail that the traveling transfer mechanism 7 further includes a connecting rod 714, a plurality of connecting rods 714 are provided and fixed one by one to the bottom outer surface of the guide sleeve 76, and a roller 715 is installed at one end of the connecting rod 714 away from the guide sleeve 76;

[0066] A pressing block 716, the pressing block 716 is fixed to the bottom opposite surfaces of the two L-shaped rack rods 55, and the top surface of the pressing block 716 is provided with a guide groove 717 adapted to the multiple rollers 715 one by one;

[0067] It should be noted that when the receiving frame 6 moves toward the unloading frame 8, the connecting rod 714 drives the roller 715 to roll in the guide groove 717 until the roller 715 is separated from the guide groove 717. At this time, the L-shaped rack rod 55 tends to move upward due to the elastic reset effect of the compression spring 562. However, since the sheet metal parts that have not been laser cut are still placed on the placement frame 3 and the conveying roller 51, they are compressed and positioned by the positioning rollers 4. At this time, the two positioning rollers 4 still maintain the compression and positioning of the sheet metal parts.

[0068] It should be noted again that the guide groove 717 is arranged in three sections, which are an inclined section inclined downward, a horizontal straight section and an elliptical curved section in the direction toward the discharge frame 8. The connecting rod 714 can also be a telescopic sleeve rod, which is composed of a fixed sleeve 93, a spring and a telescopic rod. An adjusting bolt for adjusting the length of the telescopic rod can be arranged at the end of the fixed sleeve 93, so as to fine-tune the length of the connecting rod 714.

[0069] It should be noted that after the receiving frame 6 is driven by the driving motor 73 to move and transfer the cut thin sheet metal part, the driving motor 73 drives the receiving frame 6 to move in the direction of the conveying roller 51. Through the connecting action of the connecting rod 714, the roller 715 gradually contacts the bottom end of the guide groove 717 and slides in the guide groove 717. When the roller 715 slides to the inclined section of the guide groove 717, the pressing block 716 and the L-shaped rack rod 55 both move downward, and the L-shaped rack rod 55 is rotated. The meshing transmission effect of the L-shaped rack rod 55 and the rotating gear 54, at this time, the four rotating sleeve rods 53 drive the two positioning rollers 4 to rotate toward the middle of the L-shaped rack rod 55, which reduces the pressing effect of the two positioning rollers 4 on the top surface of the thin plate sheet metal part to a certain extent. When the thin plate sheet metal part that has not been laser cut is transported at a fixed distance by the stepping motor 52, the friction force of the positioning rollers 4 on the thin plate sheet metal part is reduced, thereby effectively improving the convenience of the fixed distance transportation of the thin plate sheet metal part that has not been laser cut;

[0070] When the thin sheet metal part is initially pressed and positioned, the end of the thin sheet metal part is located above the receiving frame 6. When the receiving frame 6 drives the positioning roller 4 to reset and press through the driving motor 73, the distance between the positioning roller 4 and the receiving frame 6 is used to achieve height fine-tuning. Therefore, the horizontal movement distance of the receiving frame 6 on the workbench 1 is very short, which is not enough to drive the entire thin sheet metal part to move on the placement frame 3. Therefore, it will not cause deviation in the laser cutting position of the thin sheet metal part.

[0071] Further as Figure 1 , Figure 3 , Figure 5 and Figure 9 As shown, it is worth to explain in detail that the unloading mechanism 9 includes a transmission gear 91, two transmission gears 91 are provided and are coaxially fixed to the two ends of the unloading frame 8, and each transmission gear 91 is meshedly connected with a pushing rack rod 92 on the top;

[0072] A fixed sleeve 93, two fixed sleeves 93 are provided and are fixed to the top surface of the workbench 1, and a support rod 94 is slidably penetrated through the inner wall of each fixed sleeve 93, and a sliding block 95 is fastened and sleeved on the outer surface of one end of the support rod 94, and the sliding block 95 is fixedly arranged with the push rack rod 92. A support spring 96 fixed to the opposite surface of the fixed sleeve 93 and the sliding block 95 is provided on the periphery of the support rod 94, and a push rod 97 adapted to the sliding block 95 is fixed on the outer surface of the receiving frame 6;

[0073] The contact surface between the abutment bar 711 and the discharge frame 8 is a matching arc surface, and the distance between the push rod 97 and the sliding block 95 is greater than the distance between the abutment bar 712 and the abutment bar 711;

[0074] The inner wall of the workbench 1 is provided with a sliding groove, and the bottom of the sliding block 95 is slidably installed inside the sliding groove;

[0075] It should be noted that, since the distance from the push rod 97 to the sliding block 95 is greater than the distance from the abutment rod 712 to the abutment bar 711, when the thin plate sheet metal is transported to the front end of the discharge frame 8 through the receiving frame 6 and tilted and flipped through the flipping plate 75, the push rod 97 is delayed to contact with the sliding block 95, so that the sliding block 95 slides in the slide groove, so that the support spring 96 is compressed and drives the push rack rod 92 to slide synchronously. At this time, the meshing transmission effect of the push rack rod 92 and the transmission gear 91 is used to make the discharge frame 8 tilt and rotate downward inside the workbench 1, so as to realize the delayed tilting discharge of the thin plate sheet metal that has been laser cut;

[0076] It should be noted that the other end of the sliding rod 77 can be connected to an electric push rod. When the push rod 97 contacts the sliding block 95, the electric push rod is powered on, which can further enhance the convenience of the unloading frame 8 to rotate by pushing the rack rod 92 and the transmission gear 91.

[0077] This embodiment has the following working process: when the thin plate sheet metal parts are subjected to multiple laser cutting processes, the receiving frame 6 is first driven to move toward the placement frame 3 by the traveling transfer mechanism 7, and the roller 715 in the traveling transfer mechanism 7 is moved toward the inclined section in the guide groove 717, so that the L-shaped rack rod 55 in the fixed distance pushing mechanism 5 can be moved downward, and the four rotating sleeve rods 53 are driven to rotate synchronously toward the L-shaped rack rod 55, so that the two positioning rollers 4 are rotated to approach each other, so as to fine-tune the spacing between the positioning roller 4 and the placement frame 3, and at this time, the thin plate sheet metal parts are pushed on the surface of the placement frame 3, and the initial laser cutting position of the thin plate sheet metal parts is placed below the laser cutter 2, and the end is placed above the receiving frame 6, and then the receiving frame 6 is driven by the traveling transfer mechanism 7 to perform a reset process, so that the pressing member 56 drives the positioning roller 4 to perform a synchronous reset process, so that the thin plate sheet metal parts are pressed and positioned by the two positioning rollers 4, and then the thin plate sheet metal parts are automatically lasered by the laser cutter 2 to complete the initial laser cutting;

[0078] The receiving frame 6 is driven to move on the workbench 1 by the traveling transfer mechanism 7, so that the cut thin sheet metal parts are conveyed and transferred to the front end of the unloading frame 8 and the thin sheet metal parts are tilted at the same time. Then, the unloading mechanism 9 is set to make the unloading frame 8 rotate with a delay, so as to complete the re-receiving of the tilted thin sheet metal parts, and unloading and transferring are performed through the inclined slope of the unloading frame 8, so as to complete the initial unloading and transfer processing;

[0079] After the initial discharge transfer, the traveling transfer mechanism 7 drives the receiving frame 6 to move towards the placing frame 3 again. Through its interaction with the fixed-distance conveying mechanism, the distance between the two positioning rollers 4 and the top surface of the sheet metal part is finely adjusted. At this time, driven by the fixed-distance conveying mechanism, the sheet metal part to be laser-cut is conveyed at a fixed distance above the receiving frame 6. Subsequently, through the laser cutting process of the laser cutter 2, the secondary laser cutting treatment of the sheet metal part can be completed. Then, the traveling transfer mechanism 7 repeats the above operations to complete the horizontal conveying, inclined transfer, and inclined discharge treatment of the sheet metal part after secondary laser cutting.

[0080] According to the above working process, it can be seen that through the interaction of the fixed-distance conveying mechanism, the traveling transfer mechanism 7, and the discharge mechanism 9, the sheet metal part can be initially pressed and positioned, laser-cut, horizontally conveyed, inclinedly transferred, and inclinedly discharged on the workbench 1. Subsequently, through the multiple coordinated actions of the fixed-distance conveying mechanism, the traveling transfer mechanism 7, and the discharge mechanism 9, the fixed-distance conveying and feeding, pressing and positioning cutting, mobile inclined transfer, and delayed rotational discharge treatment of the sheet metal part can be achieved. The action connection of the laser cutting treatment is significantly improved, and the equipment operation coordination is strong, effectively improving the multiple laser cutting processing efficiency of the sheet metal part.

[0081] The stepping motor 52 and the driving motor 73 can both be purchased on the market and are separately equipped with power supplies, which are mature technologies in this field and have been fully disclosed. Therefore, they are not repeated in the specification.

[0082] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automated laser cutting device for thin sheet metal parts, comprising a workbench (1) and a laser cutter (2) arranged in the middle of the workbench (1), characterized in that: Also includes: A placement frame (3), the placement frame (3) is arranged at the front end of the laser cutter (2) and is fixed to the top surface of the workbench (1), two parallel positioning rollers (4) are arranged above the placement frame (3), and a fixed-distance pushing mechanism (5) that cooperates with the positioning rollers (4) is arranged between the placement frame (3) and the laser cutter (2); A receiving frame (6), the receiving frame (6) is arranged at a side away from the placing frame (3) and is slidably mounted on the inner wall of the workbench (1), and a travelling transfer mechanism (7) for conveying and transferring thin plate sheet metal parts is arranged on the periphery of the receiving frame (6); A discharge frame (8) is located outside the receiving frame (6) and is rotatably mounted on the inner wall of the workbench (1). A discharge mechanism (9) that cooperates with the traveling transfer mechanism (7) is arranged on the periphery of the discharge frame (8).

2. The automated laser cutting device for thin sheet metal parts according to claim 1, characterized in that: The fixed-distance pushing mechanism (5) comprises: A conveying roller (51), the conveying roller (51) is arranged on the outside of the placement frame (3) and is rotatably connected to the inner wall of the workbench (1), and a stepping motor (52) coaxially connected to the conveying roller (51) is arranged at the outer end of the workbench (1); A rotating sleeve rod (53) is provided with four rotating sleeve rods (53) which are arranged in a rectangular shape and are rotatably mounted on the outer surface of the workbench (1); the two ends of the positioning roller (4) are rotatably mounted inside two rotating sleeve rods (53) located on the same side; a rotating gear (54) is coaxially fixed on the inner side of each rotating sleeve rod (53); an L-shaped rack rod (55) is meshed and connected between two adjacent rotating gears (54); and a pressing member (56) is provided between the two L-shaped rack rods (55).

3. The automated laser cutting device for thin sheet metal parts according to claim 2, characterized in that: The pressing member (56) comprises: Limit rods (561), two limit rods (561) are provided and both are fixed to the bottom surface of the workbench (1), and the bottom end of the L-shaped rack rod (55) is slidably sleeved on the outer surface of the limit rod (561); A clamping spring (562), wherein two clamping springs (562) are provided and are respectively sleeved inside the two limit rods (561), and two ends of the clamping spring (562) are respectively fixed to the bottom surface of the workbench (1) and the bottom top surface of the L-shaped rack rod (55).

4. The automated laser cutting device for thin sheet metal parts according to claim 2, characterized in that: The traveling transfer mechanism (7) comprises: A fixed rack rod (71), the fixed rack rod (71) is fixed to the inner wall of the workbench (1), a travel gear (72) is arranged above the fixed rack rod (71), and a driving motor (73) coaxially connected to the travel gear (72) is installed on the bottom surface of the receiving frame (6); A fixed frame (74), the fixed frame (74) is fixed to the outer surface of the receiving frame (6), the inner wall of the fixed frame (74) is rotatably connected to a flipping plate (75), a plurality of equally spaced guide sleeves (76) are fixed to the bottom surface of the receiving frame (6), a sliding rod (77) is slidably penetrated through the inner wall of each guide sleeve (76), a pushing block (78) fixed to the end of the sliding rod (77) is fitted on the outer surface of the bottom of the flipping plate (75), the other end of the sliding rod (77) is fixed to a connecting frame (79), and a plurality of rolling rods (710) distributed obliquely downward are rotatably connected to the outer surface of the connecting frame (79); A resistance bar (711) is arranged on the periphery of the discharge frame (8) and fixed to the inner wall of the workbench (1); a resistance bar (712) fixed to the connection frame (79) is arranged below the rolling rod (710); and a compression spring (713) fixed to the opposite surfaces of the connection frame (79) and the guide sleeve (76) is arranged on the outer surface of the sliding rod (77).

5. The automated laser cutting device for thin sheet metal parts according to claim 4, characterized in that: The traveling transfer mechanism (7) further comprises: A connecting rod (714), wherein a plurality of connecting rods (714) are provided and fixed one by one to the outer surface of the bottom of the guide sleeve (76), and a roller (715) is installed at one end of the connecting rod (714) away from the guide sleeve (76); A pressing block (716) is fixed to the bottom opposite surfaces of the two L-shaped rack rods (55), and a top surface of the pressing block (716) is provided with guide grooves (717) that are matched one by one with the multiple rollers (715).

6. The automated laser cutting device for thin sheet metal parts according to claim 4, characterized in that: The unloading mechanism (9) comprises: Transmission gears (91), two transmission gears (91) are provided and are coaxially fixed to the two ends of the discharge frame (8), and each transmission gear (91) is meshingly connected with a pushing rack rod (92) on its top; A fixed sleeve (93), two fixed sleeves (93) are provided and are fixed to the top surface of the workbench (1), the inner wall of each fixed sleeve (93) is slidably penetrated by a support rod (94), one end of the outer surface of the support rod (94) is tightly sleeved with a sliding block (95), the sliding block (95) is fixedly arranged with the pushing rack rod (92), the outer periphery of the support rod (94) is provided with a supporting spring (96) fixed to the opposite surface of the fixed sleeve (93) and the sliding block (95), and the outer surface of the receiving frame (6) is fixed with a pushing rod (97) adapted to the sliding block (95).

7. The automated laser cutting device for thin sheet metal parts according to claim 6, characterized in that: The contact surface between the abutment bar (711) and the discharge frame (8) is a matching arc surface, and the distance from the push rod (97) to the sliding block (95) is greater than the distance from the abutment bar (712) to the abutment bar (711).

8. The automated laser cutting device for thin sheet metal parts according to claim 6, characterized in that: The inner wall of the workbench (1) is provided with a sliding groove, and the bottom of the sliding block (95) is slidably mounted inside the sliding groove.

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