A micro-fine precise thin-walled pipe laser cutting system with automatic feeding and discharging system

Abstract

The application provides a micro-fine thin-wall pipe laser cutting system with an automatic feeding and discharging system, which comprises a feeding mechanism and sequentially connected feeding rack components, a three-axis laser cutting machine and discharging rack components. The feeding mechanism is used for feeding the micro-fine thin-wall pipe to the feeding rack components. The feeding rack components are used for conveying the micro-fine thin-wall pipe into the three-axis laser cutting machine. The three-axis laser cutting machine is used for cutting the micro-fine thin-wall pipe. The discharging rack components are used for conveying and collecting the cut micro-fine thin-wall pipe. The micro-fine thin-wall pipe laser cutting system with the automatic feeding and discharging system can realize automatic operation, greatly save production cost and improve production efficiency.

Description

Technical Field

[0001] This invention belongs to the technical field of precision cutting tools and measuring equipment, specifically relating to a micro-precision thin-walled tube laser cutting system with an automatic loading and unloading system. Background Technology

[0002] The automated loading and unloading system for micro-precision thin-walled tube laser cutting is a specialized piece of equipment used by CNC machine tools to process precision parts. The degree of automation directly determines the speed and cost of processing these precision parts. With the rapid development of precision industrial technology, the requirements for the machining accuracy of precision parts are gradually increasing. To adapt to the rapid development of precision machining technology, the machining accuracy and automation level of specialized equipment are increasingly becoming the focus of research in the field of precision manufacturing. This applies to both machining accuracy and labor costs; ensuring precision machining while simultaneously saving costs is paramount.

[0003] Traditional laser cutting systems for micro-precision thin-walled tubes are generally manual operations due to the slender nature of the materials, resulting in low production efficiency and the inability to achieve fully automated loading and unloading. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a micro-precision thin-walled tube laser cutting system with an automatic loading and unloading system, which enables automated operation, significantly reducing production costs and improving production efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A laser cutting system for micro-precision thin-walled tubes with an automatic loading and unloading system includes a feeding mechanism and a loading rack assembly, a three-axis laser cutter, and an unloading rack assembly connected in sequence. The feeding mechanism is used to feed the micro-precision thin-walled tubes onto the loading rack assembly. The loading rack assembly is used to transport the micro-precision thin-walled tubes into the three-axis laser cutter. The three-axis laser cutter is used to cut the micro-precision thin-walled tubes. The unloading rack assembly is used to transport and collect the cut micro-precision thin-walled tubes.

[0007] Furthermore, the feeding rack assembly includes a feeding profile support, on which are provided multiple positioning and centering devices, clamping feeding devices, guiding feeding devices, thin-walled tube position signal detection devices, and solenoid valve groups. The multiple positioning and centering devices are spaced apart on the upper end surface of the feeding profile support. The clamping feeding devices are slidably mounted on the upper end surface of the feeding profile support. The guiding feeding devices are located at one end of the feeding profile support near the three-axis laser cutting machine. The thin-walled tube position signal detection device is electrically connected to the solenoid valve group, and the solenoid valve group is electrically connected to the clamping feeding devices and the positioning and centering devices.

[0008] Furthermore, the positioning and centering device includes a slide rail plate, on which two first clamping cylinders are arranged in a mirror-symmetrical manner. The slide rail plate is fixed to a fixing plate on the upper end face of the feeding profile bracket, and the solenoid valve group is electrically connected to the first clamping cylinders.

[0009] Furthermore, the clamping and feeding device includes a lifting cylinder, a second motor, and a pulley. A second clamping cylinder is mirror-symmetrically arranged at the lower part of the lifting cylinder. The two cylinder shafts of the lifting cylinder are respectively fixedly connected to the two clamping cylinders. Two grippers are mirror-symmetrically arranged on the two cylinder shafts of the second clamping cylinder. A limiting plate is provided on one side of the two grippers, and an inverted V-shaped limiting groove is provided at the lower end of the limiting plate. An L-shaped connector is fixed to the front sidewall of the lifting cylinder. The vertical plate of the L-shaped connector is fixedly connected to the front sidewall of the lifting cylinder. A fixing plate extending away from the lifting cylinder is fixed to the lower end surface of the horizontal plate of the L-shaped connector. A first slider is fixed to the lower end surface of the fixing plate at the end away from the lifting cylinder. The first slider is connected to... A first slide rail is slidably connected to the upper surface of the feeding rack assembly, and limit sensors are provided on the outer sides of both ends of the first slide rail; a second motor and a pulley are respectively located at the outer ends of the slide rail, and a transmission belt is connected between the output shaft of the second motor and the pulley; a first L-shaped rack connector is provided on the inner side of the slider, the upper end face of the vertical plate of the first L-shaped rack connector is fixedly connected to the lower end face of the horizontal plate of the L-shaped connector, and a toothed groove plate is fixed on the lower end face of the horizontal plate of the first L-shaped rack connector, spaced apart from the lower end face, and a toothed groove is provided on the toothed groove plate to match the rack on the transmission belt. The transmission belt passes between the horizontal plate and the toothed groove plate and meshes with the toothed groove plate; the solenoid valve group is electrically connected to the lifting cylinder and the second clamping cylinder.

[0010] Furthermore, the guiding feeding device includes a base plate, which is fixed to the upper surface of the feeding profile support. Along the tube's forward direction, the base plate is sequentially provided with an infeed fixture, a drive wheel, and an infeed guiding fixture. Both the infeed fixture and the infeed guiding fixture have through holes for the micro-precision thin-walled tube to pass through. A guide tube is connected to the through hole of the infeed guiding fixture near the side of the three-axis laser cutting machine. The drive wheel is connected to the output shaft of a rotary motor. A third clamping cylinder is provided on one side of the drive wheel, and a clamping wheel is connected to the third clamping cylinder near the drive wheel. The cylinder shaft of the third clamping cylinder drives the clamping wheel to move. The third clamping cylinder is electrically connected to a detection switch.

[0011] Furthermore, a positioning plate is fixed on the side of the base plate near the three-axis laser cutting machine, and the guide tube passes through the positioning plate.

[0012] Furthermore, the feeding mechanism is a synchronous belt feeding mechanism, including a feeding mechanism profile support and a motor. The output shaft of the motor is connected to a reducer. A transmission shaft is fixed at both ends of the feeding mechanism profile support in the width direction. Multiple transmission wheels are spaced apart on both transmission shafts. The transmission wheels on the two transmission shafts are arranged opposite to each other. A conveyor belt is provided on each pair of opposite transmission wheels. The output shaft of the reducer is connected to the transmission shaft on the side near the loading rack assembly through the conveyor belt.

[0013] Furthermore, a sheet metal part is provided between each of the two adjacent conveyor belts. The sheet metal part is placed on the upper end surface of the feeding mechanism profile. The end of the sheet metal part near the loading rack assembly is bent downwards, and the plane of this end face is located between two mirror-symmetrically arranged first clamping cylinders.

[0014] Furthermore, the feeding mechanism includes a top material lifting cylinder and a V-shaped groove. The two side walls of the open end of the V-shaped groove are fixed on the feeding frame assembly. The V-shaped groove is located directly below the two grippers. A top material opening is opened on the closed side of the V-shaped groove. The top material lifting cylinder is fixed on the feeding frame assembly and located directly below the top material opening. The cylinder shaft of the top material lifting cylinder lifts the thin-walled tube through the top material opening.

[0015] Furthermore, the unloading rack assembly includes an unloading profile bracket, with a material drop chamber on the upper surface of the unloading profile bracket. A second slide rail is mounted on the unloading profile bracket via two columns along its length. The second slide rail is located directly above one side of the upper surface of the unloading profile bracket. Two pulleys are symmetrically mounted on the two columns, with a conveyor belt wound around each pulley. A third motor is fixed on the side of the unloading profile bracket with the second slide rail, and one of the pulleys is connected to the output shaft of the third motor. Limit sensors are respectively located at both ends of one side of the second slide rail along its length. A second slider is slidably connected to the second slide rail. A connecting plate extending directly above the material drop chamber is fixed on the upper surface of the second slider. A second L-shaped rack connector is connected to the lower surface of the connecting plate, adjacent to the second slider. The upper surface of the vertical plate of the second L-shaped rack connector is connected to the connecting plate. The lower end face of the connecting plate is fixedly connected. A second toothed groove plate is fixed on the lower end face of the transverse plate of the second L-shaped rack connector, spaced apart from the lower end face. The second toothed groove plate has toothed grooves that are adapted to the rack on the transmission belt. The transmission belt passes between the transverse plate and the second toothed groove plate and meshes with the second toothed groove plate. A crossbar is fixed at the end of the connecting plate above the material drop hopper. The crossbar extends toward the three-axis laser cutting machine. A fourth clamping cylinder is fixed at the end of the crossbar near the three-axis laser cutting machine. The two cylinders of the fourth clamping cylinder extend axially toward the material drop hopper and are connected to two material picking claws. The two material picking claws are symmetrically arranged relative to the central axis of the discharge port of the three-axis laser cutting machine. A thin-walled tube sensor and a solenoid valve group are fixed on the material drop profile bracket. The thin-walled tube sensor and the limit sensor are electrically connected to the solenoid valve group. The solenoid valve group is electrically connected to the third motor and the fourth clamping cylinder.

[0016] Furthermore, the longitudinal section of the material discharge bin is V-shaped, and the two ends of the opening end of the material discharge bin are fixed to the upper surface of the material discharge profile support.

[0017] The working principle of the micro-precision thin-walled tube laser cutting system with automatic loading and unloading system of this invention is as follows: When the feeding mechanism is a synchronous belt feeding mechanism, the conveyor belt on the synchronous belt feeding mechanism transports the thin-walled tube to one end of the sheet metal part near the loading rack assembly. After passing through the bending part of the sheet metal part, it slides to the positioning centering device. After the thin-walled tube sensor detects the thin-walled tube, it sends the information to the PLC controller. The PLC controller sends the signal to the solenoid valve group. The solenoid valve group controls the two relatively arranged first clamping cylinders to move towards each other to clamp the thin-walled tube. After clamping the thin-walled tube, the cylinder shaft of the lifting cylinder extends. After the second clamping cylinder opens the gripper to clamp the thin-walled tube, the cylinder shaft of the lifting cylinder retracts. Then, the solenoid valve group controls the first motor to start and move the gripper towards the guide feeding device until one end of the thin-walled tube passes through the feeding fixture. The detection switch detects the thin-walled tube. The clamping wheel on the third clamping cylinder clamps the thin-walled tube. The second clamping cylinder opens the gripper to release the thin-walled tube. While the first motor moves the gripper away from the guide feeding device, the rotary motor drives the drive wheel to rotate and send the thin-walled tube to the three-axis laser cutting machine for cutting. The thin-walled tube cut by the three-axis laser cutting machine is removed from the discharge port of the three-axis laser cutting machine. When the thin-walled tube sensor on the unloading rack assembly detects the thin-walled tube signal, it sends the signal to the PLC controller. The PLC controller sends the signal to the solenoid valve group. The solenoid valve group controls the second motor to move the picking gripper to the discharge port of the three-axis laser cutting machine. Then, the fourth clamping cylinder opens the picking gripper connected to it to clamp the cut thin-walled tube, and then moves backward a distance. The picking gripper opens and puts the thin-walled tube into the dropping bin.

[0018] The present invention provides a micro-precision thin-walled tube laser cutting system with an automatic loading and unloading system, which can bring cost savings and efficiency improvement to customers. On the one hand, it saves manual loading time and reduces labor input costs; on the other hand, it improves production efficiency, can achieve 24-hour uninterrupted operation, and increase production capacity.

[0019] Compared to traditional processing methods, which are offline single-machine operations requiring the labor cost of 2-3 people and involve inconvenience in manual material handling, resulting in high material handling costs and poor production efficiency and product quality, this system allows for one-time material handling without cutting off processing costs. As long as there is sufficient material, workers can perform other tasks, saving both manual loading and processing time. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the micro-precision thin-walled tube laser cutting system with automatic loading and unloading system described in Embodiment 1 of the present invention;

[0021] Figure 2 This is a side view of the synchronous belt feeding mechanism described in Embodiment 1 of the present invention.

[0022] Figure 3 This is a three-dimensional structural diagram of the feeding mechanism and loading rack assembly described in Embodiment 2 of the present invention;

[0023] Figure 4 This is a front view structural diagram of the feeding mechanism and loading rack assembly described in Embodiment 2 of the present invention;

[0024] Figure 5 This is a schematic diagram of the unloading rack assembly structure described in Embodiments 1 and 2 of the present invention;

[0025] Figure 6 This is a three-dimensional structural diagram of the guiding feeding device described in Embodiments 1 and 2 of the present invention;

[0026] Figure 7 This is a top view schematic diagram of the guiding feeding device described in Embodiments 1 and 2 of the present invention.

[0027] Among them, 2-loading rack assembly, 3-three-axis laser cutting machine, 4-unloading rack assembly, 5-limit sensor, 6-solenoid valve assembly, 101-material mechanism profile bracket, 102-first motor, 103-reducer, 104-drive shaft, 105-drive wheel, 106-conveyor belt, 107-sheet metal part, 108-top material lifting cylinder, 109-V-groove, 1091-clearance hole, 201-loading profile bracket, 202-slide rail plate, 203-first clamping cylinder, 204-first fixing plate, 205-lifting cylinder, 206-second motor, 207-first pulley, 208-second clamping cylinder, 209-gripper, 210-positioning plate, 211-limiting plate, 2111-inverted V-shaped limit groove; 212- L-shaped connector, 213-second fixed plate, 214-first slider, 215-first slide rail, 216-first conveyor belt, 217-first L-shaped rack connector, 218-first toothed plate, 219-base plate, 220-feed fixture, 221-drive wheel, 222-feed guide fixture, 223-guide tube, 224-rotary motor, 225-third clamping cylinder, 226-clamping wheel, 227-detection Switch, 228-Connecting plate, 401-Unloading profile bracket, 402-Unloading bin, 403-Column frame, 404-Second slide rail, 405-Second pulley, 406-Second conveyor belt, 407-Third motor, 408-Second slider, 409-Connecting plate, 410-Second L-shaped rack connector, 411-Second toothed plate, 412-Crossbar, 413-Fourth clamping cylinder, 414-Material pick-up gripper. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Example

[0029] like Figure 1 , Figure 2 and Figures 5-7 The illustrated micro-precision thin-walled tube laser cutting system with automatic loading and unloading system includes a feeding mechanism and a loading rack assembly 2, a three-axis laser cutter 3, and an unloading rack assembly 4 connected in sequence. The feeding mechanism is used to feed the micro-precision thin-walled tube onto the loading rack assembly 2. The loading rack assembly 2 is used to transport the micro-precision thin-walled tube into the three-axis laser cutter 3. The three-axis laser cutter 3 is used to cut the micro-precision thin-walled tube. The unloading rack assembly 4 is used to transport and collect the cut micro-precision thin-walled tube.

[0030] The feeding rack assembly 2 includes a feeding profile support 201. Multiple positioning and centering devices, a clamping feeding device, a guiding feeding device, a thin-walled tube position signal detection device (not shown in the figure), and a solenoid valve group 6 are provided on the feeding profile support 201. The multiple positioning and centering devices are spaced apart on the upper surface of the feeding profile support 201. The clamping feeding device is slidably mounted on the upper surface of the feeding profile support. The guiding feeding device is located at one end of the feeding profile support near the three-axis laser cutting machine 3. The thin-walled tube position signal detection device is electrically connected to the solenoid valve group 6, and the solenoid valve group 6 is electrically connected to the clamping feeding device and the positioning and centering device. The positioning and centering device includes a slide rail plate 202, on which two first clamping devices are mirror-symmetrically arranged. The cylinder 203 and the slide rail 202 are fixed on the first fixing plate 204 on the upper end surface of the feeding profile bracket 201. The solenoid valve group 6 is electrically connected to the first clamping cylinder 203. The clamping feeding device includes two lifting cylinders 205 spaced apart, a second motor 206 and two first pulleys 207. The lower part of the two lifting cylinders 205 is provided with a second clamping cylinder 208 mirror symmetrically. The two cylinder shafts of the lifting cylinder 205 are respectively fixedly connected to the two second clamping cylinders 208. The two cylinder shafts of the second clamping cylinder 208 are provided with two grippers 209 mirror symmetrically. A limiting plate 211 is provided on one side of the two grippers 209. The lower end of the limiting plate 211 is provided with an inverted V-shaped limiting groove 2111. An L-shaped connector 212 is fixed to the front side wall of the lifting cylinder 205. The vertical plate of the L-shaped connector 212 is fixedly connected to the front side wall of the lifting cylinder 205. A second fixing plate 213 extending away from the lifting cylinder 205 is fixed to the lower end face of the horizontal plate of the L-shaped connector 212. The upper end faces of the two second fixing plates 213 are connected by a connecting plate 228. A first slider 214 is fixed to the lower end face of the second fixing plate 213 away from the lifting cylinder 205. The first slider 214 is slidably connected to a first slide rail 215 provided on the upper end face of the feeding profile bracket 201. Limit sensors 216 are provided on the outer sides of both ends of the first slide rail 215. The two first pulleys 207 are respectively located on... At both ends of the outer side of the first slide rail 215, a first transmission belt 216 is connected between two first pulleys 207. The output shaft of the second motor 206 is connected to one of the first pulleys 207. A first L-shaped rack connector 217 is provided on the inner side of the first slider 214. The upper end face of the vertical plate of the first L-shaped rack connector 217 is fixedly connected to the lower end face of the horizontal plate of the L-shaped connector 212. A first toothed plate 218 is fixed on the lower end face of the horizontal plate of the first L-shaped rack connector 217, which is spaced apart from the lower end face. The first toothed plate 218 is provided with a toothed groove that matches the rack on the first transmission belt 216. The first transmission belt 216 passes between the horizontal plate and the first toothed plate 218 and meshes with the first toothed plate 218.The solenoid valve assembly 6 is electrically connected to the lifting cylinder 205 and the second clamping cylinder 208.

[0031] The guiding feeding device includes a base plate 219, which is fixed to the upper end surface of the feeding profile support 201. Along the tube's forward direction, the base plate 219 is sequentially provided with an infeed fixture 220, a drive wheel 221, and an infeed guide fixture 222. Both the infeed fixture 220 and the infeed guide fixture 222 have through holes for the micro-precision thin-walled tube to pass through. A guide tube 223 is connected to the through hole of the infeed guide fixture 222 near the side of the three-axis laser cutting machine 3. The drive wheel 221 and... The output shaft of a rotary motor 224 is connected to a third clamping cylinder 225 on one side of the drive wheel 221. A clamping wheel 226 is connected to the third clamping cylinder 225 near the drive wheel 221. The cylinder shaft of the third clamping cylinder 225 drives the clamping wheel 226 to move. The third clamping cylinder 225 is electrically connected to a detection switch 227. A positioning plate 210 is fixed on the side of the base plate 219 near the three-axis laser cutting machine 3. The guide tube 223 passes through the positioning plate 210.

[0032] The feeding mechanism is a synchronous belt feeding mechanism, including a feeding mechanism profile bracket 101 and a first motor 102. The output shaft of the first motor 102 is connected to a reducer 103. A transmission shaft 104 is fixed at both ends of the feeding mechanism profile bracket 101 in the width direction. Multiple transmission wheels 105 are spaced apart on the two transmission shafts 104. The transmission wheels 105 on the two transmission shafts 104 are arranged opposite to each other. A conveyor belt 106 is provided on each pair of oppositely arranged transmission wheels 105. The output shaft of the reducer 103 is connected to the transmission shaft 104 near the loading rack assembly 2 via the conveyor belt. A sheet metal part 107 is provided between two adjacent conveyor belts 106. The sheet metal part 107 is placed on the upper end surface of the feeding mechanism profile bracket 101. The end of the sheet metal part 107 near the loading rack assembly 2 is bent downward. The plane of this end face is located between two mirror-symmetrically arranged first clamping cylinders 203.

[0033] The feeding rack assembly 4 includes a feeding profile support 401. A feeding bin 402 is provided on the upper end surface of the feeding profile support 401. The longitudinal section of the feeding bin 402 is V-shaped. The two ends of the opening end of the feeding bin 402 are fixed to the upper end surface of the feeding profile support 401. A second slide rail 404 is mounted on the feeding profile support 401 via two columns 403 along its length. The second slide rail 404 is located directly above one side of the upper end surface of the feeding profile support 401. Two second pulleys 405 are symmetrically arranged on the two columns 403. A second conveyor belt 406 is wound around the material feeder 401. A third motor 407 is fixed on one side of the material feeder 401 where the second slide rail 404 is located. One of the second pulleys 405 is connected to the output shaft of the third motor 407. A limit sensor 5 is provided at both ends of one side of the second slide rail 404 along its length. A second slider 408 is slidably connected to the second slide rail 404. A connecting plate 409 extending directly above the material feeder 402 is fixed on the upper surface of the second slider 408. A second L-shaped rack is connected to the lower surface of the connecting plate 409, adjacent to the second slider 408. The connecting member 410 has its upper end face of the vertical plate fixedly connected to the lower end face of the connecting plate 409. A second toothed plate 411, spaced apart from the lower end face, is fixedly mounted on the lower end face of the horizontal plate of the second L-shaped rack connecting member 410. The second toothed plate 411 has toothed grooves adapted to the rack on the second transmission belt 406. The second transmission belt 406 passes between the horizontal plate and the second toothed plate 411 and meshes with the second toothed plate 411. A crossbar 412 is fixed at one end of the connecting plate 409 above the discharge bin 402. The crossbar 412 extends three-way... The three-axis laser cutting machine 3 extends in the direction of the crossbar 412. A fourth clamping cylinder 413 is fixed at one end of the crossbar 412 near the three-axis laser cutting machine 3. The two cylinders of the fourth clamping cylinder 413 extend in the direction of the material drop chamber 402 and are connected to two material picking claws 414. The two material picking claws 414 are symmetrically arranged with respect to the central axis of the material outlet of the three-axis laser cutting machine 3. A thin-walled tube sensor and a solenoid valve group are fixed on the material feed profile bracket 401. The thin-walled tube sensor and the limit sensor 5 are electrically connected to the solenoid valve group 6. The solenoid valve group 6 is electrically connected to the third motor 407 and the fourth clamping cylinder 413. Example

[0034] like Figure 3 , Figure 4 and Figures 5-7The laser cutting system for micro-precision thin-walled tubes with an automatic loading and unloading system shown includes a feeding mechanism 1 and a loading rack assembly 2, a three-axis laser cutter 3, and an unloading rack assembly 4 connected in sequence. The feeding mechanism 1 is used to feed the micro-precision thin-walled tubes onto the loading rack assembly 2. The loading rack assembly 2 is used to transport the micro-precision thin-walled tubes into the three-axis laser cutter 3. The three-axis laser cutter 3 is used to cut the micro-precision thin-walled tubes. The unloading rack assembly 4 is used to transport and collect the cut micro-precision thin-walled tubes.

[0035] The feeding rack assembly 2 includes a feeding profile support 201. Multiple positioning and centering devices, a clamping feeding device, a guiding feeding device, a thin-walled tube position signal detection device (a miniature detection switch is located directly below the tube), and a solenoid valve assembly 6 are provided on the feeding profile support 201. The multiple positioning and centering devices are spaced apart on the upper surface of the feeding profile support 201. The clamping feeding device is slidably mounted on the upper surface of the feeding profile support. The guiding feeding device is located at one end of the feeding profile support near the three-axis laser cutting machine 3. The thin-walled tube signal detection device is electrically connected to the solenoid valve assembly 6, and the solenoid valve assembly 6 is electrically connected to the clamping feeding device and the positioning and centering devices. The positioning and centering device includes a slide rail 202, on which a mirror... Two first clamping cylinders 203 are symmetrically arranged. A slide rail plate 202 is fixed on a fixing plate 204 on the upper surface of the feeding profile bracket 201. The solenoid valve group 219 is electrically connected to the first clamping cylinders 203. The clamping and feeding device includes a lifting cylinder 205, a first motor 206, and two first pulleys 207. A second clamping cylinder 208 is symmetrically arranged below the lifting cylinder 205. The two cylinder shafts of the lifting cylinder 205 are respectively fixedly connected to the two second clamping cylinders 208. Two grippers 209 are symmetrically arranged on the two cylinder shafts of the second clamping cylinders 208. A limiting plate 211 is provided on one side of the two grippers 209. An inverted V-shaped limiting groove 2111 is provided at the lower end of the limiting plate 211. An L-shaped connector 212 is fixed to the front side wall of the lifting cylinder 205. The vertical plate of the L-shaped connector 212 is fixedly connected to the front side wall of the lifting cylinder 205. A fixing plate 213 extending away from the lifting cylinder 205 is fixed to the lower end surface of the horizontal plate of the L-shaped connector 212. A first slider 214 is fixed to the lower end surface of the fixing plate 213 away from the lifting cylinder 205. The first slider 214 is slidably connected to a first slide rail 215 provided on the upper end surface of the feeding profile bracket 201. Limit sensors 216 are provided on the outer sides of both ends of the first slide rail 215. Two first pulleys 207 are respectively provided on the outer ends of the first slide rail 215. A first transmission is connected between the two first pulleys 207. A conveyor belt 216 is connected to the output shaft of the first motor 206 and one of the first pulleys 207. A first L-shaped rack connector 217 is provided on the inner side of the first slider 214. The upper end face of the vertical plate of the first L-shaped rack connector 217 is fixedly connected to the lower end face of the horizontal plate of the L-shaped connector 212. A first toothed plate 218 is fixed on the lower end face of the horizontal plate of the first L-shaped rack connector 217, which is spaced apart from the lower end face. The first toothed plate 218 is provided with toothed grooves that are adapted to the rack on the first transmission belt 216. The first transmission belt 216 passes between the horizontal plate and the first toothed plate 218 and meshes with the first toothed plate 218. The solenoid valve group 6 is electrically connected to the lifting cylinder 205 and the second clamping cylinder 208.

[0036] The guiding feeding device includes a base plate 219, which is fixed to the upper end surface of the feeding profile support 201. Along the tube's forward direction, the base plate 219 is sequentially provided with an infeed fixture 220, a drive wheel 221, and an infeed guide fixture 222. Both the infeed fixture 220 and the infeed guide fixture 222 have through holes for the micro-precision thin-walled tube to pass through. A guide tube 223 is connected to the through hole of the infeed guide fixture 222 near the side of the three-axis laser cutting machine 3. The drive wheel 221 and... The output shaft of a rotary motor 224 is connected to a third clamping cylinder 225 on one side of the drive wheel 221. A clamping wheel 226 is connected to the third clamping cylinder 225 near the drive wheel 221. The cylinder shaft of the third clamping cylinder 225 drives the clamping wheel 226 to move. The third clamping cylinder 225 is electrically connected to a detection switch 227. A positioning plate 228 is fixed on the side of the base plate 219 near the three-axis laser cutting machine 3. The guide tube 223 passes through the positioning plate 228.

[0037] The feeding mechanism 1 includes a top lifting cylinder 108 and a V-groove 109. The two side walls of the open end of the V-groove 109 are fixed on the feeding profile support 201. The V-groove 109 is located directly below the two grippers 210. A clearance hole 1091 is opened on the closed side of the V-groove 109. The top lifting cylinder 108 is fixed on the feeding profile support 201 and located directly below the clearance hole 1091. The cylinder shaft of the top lifting cylinder 108 lifts the thin-walled tube through the clearance hole 1091.

[0038] The feeding rack assembly 4 includes a feeding profile support 401. A feeding bin 402 is provided on the upper end surface of the feeding profile support 401. The longitudinal section of the feeding bin 402 is V-shaped. The two ends of the opening end of the feeding bin 402 are fixed to the upper end surface of the feeding profile support 401. A second slide rail 404 is mounted on the feeding profile support 401 via two columns 403 along its length. The second slide rail 404 is located directly above one side of the upper end surface of the feeding profile support 401. Two second pulleys 405 are symmetrically arranged on the two columns 403. A second conveyor belt 406 is wound around the material feeder 401. A second motor 407 is fixed on one side of the material feeder 401 where the second slide rail 404 is located. One of the second pulleys 405 is connected to the output shaft of the second motor 407. A limit sensor 5 is provided at both ends of one side of the second slide rail 404 along its length. A second slider 408 is slidably connected to the second slide rail 404. A connecting plate 409 extending directly above the material feeder 402 is fixed on the upper surface of the second slider 408. A second L-shaped rack is connected to the lower surface of the connecting plate 409 adjacent to the second slider 408. The connecting member 410 has its upper end face of the vertical plate fixedly connected to the lower end face of the connecting plate 409. A second toothed plate 411, spaced apart from the lower end face, is fixedly mounted on the lower end face of the horizontal plate of the second L-shaped rack connecting member 410. The second toothed plate 411 has toothed grooves adapted to the rack on the second transmission belt 406. The second transmission belt 406 passes between the horizontal plate and the second toothed plate 411 and meshes with the second toothed plate 411. A crossbar 412 is fixed at one end of the connecting plate 409 above the discharge bin 402. The crossbar 412 extends three-way... The three-axis laser cutting machine 3 extends in the direction of the crossbar 412. A fourth clamping cylinder 413 is fixed at one end of the crossbar 412 near the three-axis laser cutting machine 3. The two cylinders of the fourth clamping cylinder 413 extend in the direction of the material drop chamber 402 and are connected to two material picking claws 414. The two material picking claws 414 are symmetrically arranged with respect to the central axis of the material outlet of the three-axis laser cutting machine 3. A thin-walled tube sensor and a solenoid valve group are fixed on the material feed profile bracket 401. The thin-walled tube sensor and the limit sensor 5 are electrically connected to the solenoid valve group 6. The solenoid valve group 6 is electrically connected to the second motor 407 and the fourth clamping cylinder 413.

[0039] Those skilled in the art should understand that the above description is merely a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A micro-precision thin-walled tube laser cutting system with an automatic loading and unloading system, characterized in that, The device includes a feeding mechanism and a loading rack assembly, a three-axis laser cutting machine, and a unloading rack assembly connected in sequence. The feeding mechanism is used to feed the micro-precision thin-walled tube to the loading rack assembly. The loading rack assembly is used to transport the micro-precision thin-walled tube to the three-axis laser cutting machine. The three-axis laser cutting machine is used to cut the micro-precision thin-walled tube. The unloading rack assembly is used to transport and collect the cut micro-precision thin-walled tube. The feeding rack assembly includes a feeding profile support. On the feeding profile support, there are multiple positioning and centering devices, a clamping feeding device, a guiding feeding device, a thin-walled tube position signal detection device, and a solenoid valve group. The multiple positioning and centering devices are spaced apart on the upper end surface of the feeding profile support. The clamping feeding device is slidably mounted on the upper end surface of the feeding profile support. The guiding feeding device is located at one end of the feeding profile support near the three-axis laser cutting machine. The thin-walled tube position signal detection device is electrically connected to the solenoid valve group. The solenoid valve group is electrically connected to the clamping feeding device and the positioning and centering device. The clamping and feeding device includes a lifting cylinder, a second motor, and a pulley. A second clamping cylinder is mirror-symmetrically arranged below the lifting cylinder. Two cylinder shafts of the lifting cylinder are fixedly connected to the two clamping cylinders respectively. Two grippers are mirror-symmetrically arranged on the two cylinder shafts of the second clamping cylinder. A limiting plate is provided on one side of the two grippers, and an inverted V-shaped limiting groove is provided at the lower end of the limiting plate. An L-shaped connector is fixed to the front sidewall of the lifting cylinder. The vertical plate of the L-shaped connector is fixedly connected to the front sidewall of the lifting cylinder. A fixing plate extending away from the lifting cylinder is fixed to the lower end face of the horizontal plate of the L-shaped connector. A first slider is fixed to the lower end face of the fixing plate at the end away from the lifting cylinder. The first slider is connected to a... The first slide rail on the upper surface of the feeding rack assembly is slidably connected, and limit sensors are provided on the outer sides of both ends of the first slide rail; the second motor and pulley are respectively located at the outer ends of the slide rail, and a transmission belt is connected between the output shaft of the second motor and the pulley; a first L-shaped rack connector is provided on the inner side of the slider, the upper end face of the vertical plate of the first L-shaped rack connector is fixedly connected to the lower end face of the horizontal plate of the L-shaped connector, and a toothed groove plate is fixed on the lower end face of the horizontal plate of the first L-shaped rack connector, which is spaced apart from the lower end face. The toothed groove plate is provided with a toothed groove that matches the rack on the transmission belt, and the transmission belt passes between the horizontal plate and the toothed groove plate and meshes with the toothed groove plate; the solenoid valve group is electrically connected to the lifting cylinder and the second clamping cylinder.

2. The micro-precision thin-walled tube laser cutting system with automatic loading and unloading system according to claim 1, characterized in that, The positioning and centering device includes a slide rail plate, on which two first clamping cylinders are arranged in a mirror-symmetrical manner. The slide rail plate is fixed on a fixing plate on the upper end face of the feeding profile bracket. The solenoid valve group is electrically connected to the first clamping cylinders.

3. The micro-precision thin-walled tube laser cutting system with automatic loading and unloading system according to claim 2, characterized in that, The guiding feeding device includes a base plate, which is fixed to the upper surface of the feeding profile support. Along the tube's forward direction, the base plate is sequentially equipped with an infeed fixture, a drive wheel, and an infeed guide fixture. Both the infeed fixture and the infeed guide fixture have through holes for the micro-precision thin-walled tube to pass through. A guide tube is connected to the through hole of the infeed guide fixture near the side of the three-axis laser cutting machine. The drive wheel is connected to the output shaft of a rotary motor. A third clamping cylinder is located on one side of the drive wheel, and a clamping wheel is connected to the third clamping cylinder near the drive wheel. The cylinder shaft of the third clamping cylinder drives the clamping wheel to move. The third clamping cylinder is electrically connected to a detection switch.

4. A micro-precision thin-walled tube laser cutting system with an automatic loading and unloading system according to claim 3, characterized in that, A positioning plate is fixed on the side of the base plate near the three-axis laser cutting machine, and the guide tube passes through the positioning plate.

5. A micro-precision thin-walled tube laser cutting system with an automatic loading and unloading system according to claim 4, characterized in that, The feeding mechanism is a synchronous belt feeding mechanism, including a feeding mechanism profile support and a motor. The output shaft of the motor is connected to a reducer. A transmission shaft is fixed at both ends of the feeding mechanism profile support in the width direction. Multiple transmission wheels are spaced apart on the two transmission shafts. The transmission wheels on the two transmission shafts are arranged opposite to each other. A conveyor belt is provided on each pair of opposite transmission wheels. The output shaft of the reducer is connected to the transmission shaft on the side near the loading rack assembly through the conveyor belt.

6. A micro-precision thin-walled tube laser cutting system with an automatic loading and unloading system according to claim 5, characterized in that, A sheet metal part is provided between each of the two adjacent conveyor belts. The sheet metal parts are all placed on the upper end surface of the feeding mechanism profile. The end of the sheet metal part near the loading rack assembly is bent downwards, and the plane of this end face is located between two mirror-symmetrically arranged first clamping cylinders.

7. A micro-precision thin-walled tube laser cutting system with an automatic loading and unloading system according to claim 2, characterized in that, The feeding mechanism includes a top material lifting cylinder and a V-shaped groove. The two side walls of the open end of the V-shaped groove are fixed on the feeding profile bracket. The V-shaped groove is located directly below the two grippers. A top material opening is opened on the closed side of the V-shaped groove. The top material lifting cylinder is fixed on the feeding frame assembly and located directly below the top material opening. The cylinder shaft of the top material lifting cylinder lifts the thin-walled tube through the top material opening.

8. A micro-precision thin-walled tube laser cutting system with an automatic loading and unloading system according to claim 1, characterized in that, The unloading rack assembly includes an unloading profile bracket. A material drop chamber is provided on the upper surface of the unloading profile bracket. A second slide rail is mounted on the unloading profile bracket via two columns along its length. The second slide rail is located directly above one side of the upper surface of the unloading profile bracket. Two pulleys are symmetrically mounted on the two columns, and a conveyor belt is wound around the two pulleys. A third motor is fixed on the side of the unloading profile bracket with the second slide rail. One of the pulleys is connected to the output shaft of the third motor. A limit sensor is provided at each end of one end of the second slide rail along its length. A second slider is slidably connected to the second slide rail. A connecting plate extending directly above the material drop chamber is fixed on the upper surface of the second slider. A second L-shaped rack connector is connected to the lower surface of the connecting plate adjacent to the second slider. The upper surface of the vertical plate of the second L-shaped rack connector is fixedly connected to the lower surface of the connecting plate. A second toothed plate is fixed to the lower end face of the plate, spaced apart from the lower end face. The second toothed plate has toothed grooves that match the rack on the transmission belt. The transmission belt passes between the transverse plate and the second toothed plate and meshes with the second toothed plate. A crossbar is fixed to the end of the connecting plate above the material drop hopper. The crossbar extends toward the three-axis laser cutting machine. A fourth clamping cylinder is fixed to the end of the crossbar near the three-axis laser cutting machine. The two cylinders of the fourth clamping cylinder extend axially toward the material drop hopper and are connected to two material picking claws. The two material picking claws are symmetrically arranged with respect to the central axis of the material outlet of the three-axis laser cutting machine. A thin-walled tube sensor and a solenoid valve group are fixed on the material drop profile bracket. The thin-walled tube sensor and the limit sensor are electrically connected to the solenoid valve group. The solenoid valve group is electrically connected to the third motor and the fourth clamping cylinder. The longitudinal section of the material drop hopper is V-shaped. The two ends of the opening end of the material drop hopper are fixed to the upper end face of the material drop profile bracket.

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