A fully automatic numerical control small catheter production line

Abstract

The present application relates to the technical field of small catheter production facilities, and discloses a kind of full-automatic numerical control small catheter production line more particularly.It includes rack and central control system, the rack is sequentially linearly arranged with automatic feeding unit, raw material welding unit, fixed-length cutting unit, multi-hole cutting unit and sharp head manufacturing unit along length direction;The present application seamlessly splices short-size raw materials by raw material welding unit, makes full use of existing raw materials, avoids raw material waste, can realize almost zero waste output, and greatly reduces production cost.The present application is provided with five units of automatic feeding, automatic welding, fixed-length stage, multi-hole cutting and sharp head manufacturing, each unit is cooperatively linked through central control system, adopts sensor positioning and other structures, realizes full-process automation operation of small catheter from raw material feeding to finished product storage, without manual intervention, greatly reduces the labor intensity of operating personnel, and reduces labor cost.

Description

Technical Field

[0001] This invention relates to the field of small catheter production facilities technology, and in particular to a fully automated CNC small catheter production line. Background Technology

[0002] Small guide pipes are key components in the support construction of underground engineering projects such as tunnels and foundation pits. They are mainly used for the pre-support of weak and fractured surrounding rock to prevent rock collapse and ensure construction safety. Currently, the processing of small guide pipes mostly adopts a decentralized processing technology, which involves manual feeding, manual welding, manual cutting to length, single-machine hole cutting, and manual conveying and tipping. This has many drawbacks: First, the utilization rate of raw materials is low. Due to the fixed specifications of raw materials, short-length raw materials cannot be fully utilized, and a large amount of waste is generated during the cutting process, with the utilization rate of raw materials usually less than 70%. Second, there is a lot of manual intervention. Each process requires a dedicated person to operate, which is not only labor-intensive but also results in large errors due to manual operation, leading to low processing accuracy of small guide pipes and affecting the support effect. Third, the production efficiency is low. The processes are carried out separately, and the transfer between processes needs to be done manually, resulting in poor coordination and making continuous production impossible. Fourth, the safety is poor. Welding, cutting, and hole cutting all pose safety hazards, and manual operation can easily lead to safety accidents.

[0003] In response to the above problems, some small conduit processing equipment has emerged in the existing technology, but most of them have simple structures and can only complete a single process. They cannot achieve full-process automation and still suffer from serious waste of raw materials and low processing efficiency. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, this invention provides a fully automated CNC small guide tube production line, which can achieve full-process automation, high raw material utilization, and high processing accuracy and efficiency.

[0005] This invention is achieved through the following technical solution: A fully automated CNC small guide tube production line includes a frame and a central control system. The frame is characterized by having an automatic feeding unit, a raw material welding unit, a length-cutting unit, a multi-hole cutting unit, and a tip-making unit arranged linearly along its length. Each of these units is electrically connected to the central control system. The automatic feeding unit includes: a raw material storage rack, a conveying guide rail, and an automatic pushing mechanism. The raw material storage rack includes a storage hopper, which has a discharge channel that allows only one small guide tube to pass through. The conveying guide rail is located below the discharge channel and has a conveying groove located on the side of the discharge channel. The discharge channel has an opening on the side facing the conveying groove, and a baffle is provided at the opening. The baffle is connected to a blocking cylinder. The automatic pushing mechanism includes a pushing cylinder, the output end of which is coaxial with the conveying groove. The raw material welding unit includes a welding bracket, on which an adjustable automatic welding head is mounted. A first sensor is located next to the automatic welding head. Below the welding bracket are several conveying rollers arranged along the extension line of the conveying guide rail. Each conveying roller has an annular groove. A first automatic rotary chuck is located on the outer side of the conveying roller furthest from the conveying guide rail. Below the automatic welding head is a first cylinder. The output end of the first cylinder faces upward and is fixedly mounted with a first pressure sensor. The thickness of the first pressure sensor is less than 0.5 mm.

[0006] The fixed-length cutting unit includes a conveying roller group, a cutting bracket, a clamping bracket, and a baffle plate that can move up and down, arranged in sequence. The cutting bracket is equipped with a cutting blade that can move up and down, the clamping bracket is equipped with an upper clamping block that can move up and down, and a lower clamping block is equipped on the frame below the upper clamping block. The upper and lower clamping blocks have a V-groove on their opposite sides, and a second pressure sensor is equipped on the baffle plate.

[0007] The multi-hole cutting unit includes a feeding guide rail, a cutting bracket, and a second automatic rotary chuck. The feeding guide rail is provided with a feeding groove, which is connected to a feeding cylinder. The cutting bracket is provided with several plasma cutting heads. It is also equipped with a pushing device for pushing the small guide tube away from the second automatic rotary chuck after the cutting is completed.

[0008] The pushing device includes: a pushing cylinder fixed on the frame and a pushing plate installed through a guide groove. The output end of the pushing cylinder is fixedly connected to the pushing plate. A telescopic cylinder with its output end facing the feeding guide rail is fixedly installed on the pushing plate. A push plate is provided at the output end of the telescopic cylinder. The output end of the telescopic cylinder is higher than the upper surface of the feeding groove.

[0009] A pointed tip making guide rail is provided, which has an upper sliding groove. A conveying cylinder is provided on the frame. The output end of the conveying cylinder is fixedly connected to the sliding groove. A clamping cylinder is hinged to the output end of the conveying cylinder. The sliding groove is hinged to the clamping groove. The output end of the clamping cylinder is hinged to the clamping groove. A flat cylindrical tube is fixed at the end of the pointed tip making guide rail. A chip leakage port is opened at the lower end of the cylindrical tube. Two rotating rings are provided inside the cylindrical tube. Several umbrella-shaped connecting blocks are provided between the two rotating rings. A cutting tool is fixed on each connecting block. The cylindrical tube is connected to an air pump. A robotic arm for grasping the small guide tube after the pointed tip is made is also provided.

[0010] The conveying guide rail at the opening is an inclined surface.

[0011] The automatic welding head is a plasma welding head, and an ultrasonic detection sensor is provided next to the plasma welding head.

[0012] The feeding channel is equipped with a vibrator, which is located at the upper end of the feeding channel.

[0013] The beneficial effects of this invention are: This invention uses a raw material welding unit to seamlessly splice short-sized raw materials, making full use of existing raw materials, avoiding material waste, achieving almost zero waste output, and significantly reducing production costs.

[0014] This invention comprises five units: automatic feeding, automatic welding, length setting, multi-hole cutting, and tip fabrication. Each unit works in concert through a central control system and employs sensor positioning and other structures to achieve fully automated operation of the small guide tube from raw material feeding to finished product collection. No manual intervention is required, which significantly reduces the labor intensity of operators and reduces labor costs.

[0015] All units in this invention employ automated control. Sensor positioning ensures precise positioning of processes such as raw material conveying, splicing, cutting, and hole cutting. The joint, cutting blade, and hole cutting head all adopt high-precision drive structures, combined with adjustable components, to adapt to the processing needs of small guide tubes of different specifications. At the same time, the continuous production line design ensures seamless connection between each process. Multi-hole hole cutting enables multiple hole cutting positions with one feeding, significantly improving production efficiency. Compared with traditional decentralized processing, production efficiency is increased by more than 60%. Attached Figure Description

[0016] The invention will now be further described with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the front view structure of the arrangement relationship of the present invention; Figure 2 This is a schematic diagram of the main structure of the automatic feeding unit; Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure along the AA direction; Figure 4 This is a schematic diagram of the main structure of the raw material welding unit; Figure 5 for Figure 4 A schematic diagram of the local structure along the B-axis; Figure 6 This is a schematic diagram of the main structure of the fixed-length cut-off unit; Figure 7 This is a side view of the conveyor roller assembly. Figure 8 A side view of the truncated support structure; Figure 9 This is a side view of the clamping bracket. Figure 10 for Figure 6 Left view of the structure of the middle baffle plate; Figure 11 This is a schematic diagram of the main structure of a multi-hole cutting unit; Figure 12 This is a top view of the hole-cutting bracket. Figure 13 for Figure 11 A partial top-view structural diagram along the C-axis; Figure 14 for Figure 13 Schematic diagram of the cross-sectional structure along the EE direction; Figure 15 for Figure 14 Right view structural diagram of the middle push plate; Figure 16 A schematic diagram of the main structure of the pointed tip manufacturing unit; Figure 17 for Figure 16 Schematic diagram of the cross-sectional structure in the DD direction; Figure 18 This is a cross-sectional view of the cylinder.

[0017] In the diagram, rack 0; 1 Automatic feeding unit, 101 Storage hopper, 102 Discharge channel, 1021 Opening, 103 Conveying guide rail, 1031 Conveying groove, 1032 Inclined surface, 104 Baffle, 105 Blocking cylinder, 106 Vibrator, 107 Pushing cylinder. 2 Raw material welding unit, 201 Welding bracket, 202 Conveying roller, 2021 Annular groove, 203 First automatic rotary chuck, 204 Automatic welding head, 205 First sensor, 206 First cylinder, 207 First pressure sensor, 208 Ultrasonic detection sensor. 3. Fixed-length cutting unit, 301. Conveying roller group, 302. Cutting bracket, 303. Pressing bracket, 304. Baffle plate, 305. Hydraulic cylinder, 306. Cutting knife, 307. Upper pressing block, 308. Lower pressing block, 309. V-groove, 310. Second pressure sensor. 4. Multi-position cutting unit, 401 feeding guide rail, 402 cutting bracket, 403 second automatic rotary chuck, 404 feeding groove, 405 feeding cylinder, 406 plasma cutting head, 407 push-off cylinder, 408 guide rail, 409 guide groove, 410 push-off plate, 411 telescopic cylinder, 412 push plate; 5. Pointed tip making unit, 501. Pointed tip making guide rail, 502. Sliding groove, 503. Conveying cylinder, 504. Clamping cylinder, 505. Clamping groove, 506. Cylinder, 507. Chip outlet, 508. Rotating ring, 509. Circular plate, 510. Support plate, 511. Connecting block, 512. Cutting tool, 513. Air pump. Detailed Implementation

[0018] The attached figures illustrate specific embodiments of the present invention.

[0019] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0021] like Figures 1 to 18 As shown, this fully automatic CNC small guide tube production line includes a frame 0 and a central control system. The central control system can be a PLC control system, and the entire device is controlled by the central control system.

[0022] An automatic feeding unit 1, a raw material welding unit 2, a fixed-length cutting unit 3, a multi-hole cutting unit 4, and a tip making unit 5 are arranged in a row along the length of the frame 0. Each of the above units is electrically connected to the PLC control system.

[0023] The automatic feeding unit 1 includes: a raw material storage rack, a conveying guide rail 103, and an automatic pushing device; the raw material storage rack includes a storage hopper 101, the lower end of the storage hopper 101 is a feeding channel 102, the feeding channel 102 is flat and preferably vertical, the feeding channel 102 can only accommodate one small guide tube falling, the conveying guide rail 103 is located below the feeding channel 102, the conveying guide rail 103 has a conveying groove 1031, the conveying groove 1031 is located on the side of the feeding channel 102, the side of the feeding channel 102 facing the conveying groove 1031 has an opening 1021, the opening 1021 can only accommodate one small guide tube rolling down, and the conveying guide rail 103 below the opening 1021 is an inclined surface 1032, the inclination angle does not need to be too large, as long as it is convenient for the small guide tube to roll from the opening 1021 into the conveying groove 1031.

[0024] A baffle 104 is installed at the opening 1021. A blocking cylinder 105 is installed on the feeding channel 102 above the opening 1021. The baffle 104 is fixed to the output end of the blocking cylinder 105. After the blocking cylinder 105 extends, the baffle 104 blocks the opening 1021 to prevent the small guide tube from rolling down.

[0025] A vibrator 106 is provided in the feeding channel 102. The vibrator 106 is located at the upper end of the feeding channel 102 to prevent the small guide tube from accumulating at the connection between the storage hopper 101 and the feeding channel 102.

[0026] The automatic pushing mechanism is a pushing cylinder 107. The output end of the pushing cylinder 107 is coaxial with the conveying groove 1031. After the pushing cylinder 107 is started, its output end pushes the small guide tube away from the conveying groove 1031.

[0027] The raw material welding unit 2 includes a welding bracket 201, which is mounted on the frame 0. Several conveying rollers 202 are installed below the welding bracket 201. These conveying rollers 202 are driven synchronously by a motor. The conveying rollers 202 are perpendicular to the length direction of the frame 0. An annular groove 2021 is formed on each conveying roller 202. Small guide tubes are pushed out from the conveying guide rail 103 and enter the annular groove 2021, being conveyed forward through the rotating annular groove 2021. A first automatic rotary chuck 203 is installed at the discharge end of all the conveying rollers 202. The first automatic rotary chuck 203 is independently driven by a motor, which can be a geared motor or a servo motor. The central axis of the first automatic rotary chuck 203 is aligned with the annular groove 2021, clamping the small guide tubes conveyed from the annular groove 2021. The welding bracket 2... 01 is located between two adjacent conveyor rollers 202. The welding bracket 201 is fixed on the frame 0 and its position is adjustable. An automatic welding head 204 is installed on the welding bracket 201. The automatic welding head 204 can also be set to be adjustable in position. A first sensor 205 is installed next to the automatic welding head 204 and is adjusted synchronously with the automatic welding head 204 to sense the tail end of the small guide tube. A first cylinder 206 is installed below the automatic welding head 204. The position of the first cylinder 206 can be adjusted with the position of the automatic welding head 204. The output end of the first cylinder 206 faces upward and a first pressure sensor 207 is fixedly installed. The thickness of the first pressure sensor 207 is less than 0.5 mm. When the first cylinder 206 outputs, the first pressure sensor 207 is located between two adjacent small guide tubes.

[0028] The automatic welding head 204 is a plasma welding head; an ultrasonic detection sensor 208 is provided next to the plasma welding head for detecting the welding quality.

[0029] The fixed-length cutting unit 3 includes a conveying roller group 301, a cutting bracket 302, a clamping bracket 303, and a vertically movable baffle 304 arranged sequentially. The conveying roller group 301 consists of two rollers, upper and lower, each with a guide groove 3011. The gap between the two rollers is adjustable, and the adjustment method is existing technology and will not be described in detail. The conveying roller group 301 is located at the discharge end of the first automatic rotary chuck 203. The small guide tube conveyed by the first automatic rotary chuck 203 is conveyed forward through the conveying roller group 301. A cutting blade 306 driven by a hydraulic cylinder 305 is installed on the cutting bracket 302. The cutting blade 306 has a high-strength alloy material on its blade edge, which can improve cutting efficiency and service life (it can also be other types of blades, such as those driven by a motor). The machine includes a rotating circular rotary cutter, which moves up and down under the drive of a cylinder (the motor moves up and down). Further forward is a clamping bracket 303 mounted on the frame 0. An upper clamping block 307 is mounted on the clamping bracket 303. The upper clamping block 307 is independently controlled by a cylinder. A lower clamping block 308 is mounted on the frame 0 below the upper clamping block 307. V-grooves 309 are cut on the opposite sides of the lower clamping block 308 and the upper clamping block 307. The center of the V-grooves 309 is directly opposite the gap of the conveying roller group 301. A baffle plate 304 is located in front of the lower clamping block 308. The baffle plate 304 is independently controlled by a cylinder. When the cylinder is started, it drives the baffle plate 304 to rise, blocking the conveying direction of the small guide tube. A second pressure sensor 310 is mounted on the baffle plate 304.

[0030] The distance between the baffle plate 304 and the cutting blade 306 is the final length of the small guide tube. This distance can also be adjusted. The position of the baffle plate 304 or the position of the cutting blade 306 can be adjusted. The specific adjustment method is existing technology and will not be described in detail.

[0031] The multi-hole cutting unit 4 includes: a feeding guide rail 401, a cutting bracket 402, and a second automatic rotary chuck 403. A feeding groove 404 is installed on the feeding guide rail 401. Small guide tubes conveyed from the fixed-length cutting unit 3 fall onto the feeding groove 404. The feeding groove 404 is fixed to the output end of a feeding cylinder 405. The feeding cylinder 405 drives the small guide tube forward. The small guide tube is inserted into the second automatic rotary chuck 403 located in front of the feeding guide rail 401. The second automatic rotary chuck 403 is driven to rotate independently by a motor, which is a geared motor or a servo motor. After the second automatic rotary chuck 403 clamps the small guide tube, the feeding groove 404 returns to the starting position. At this time, one end of the small guide tube is located inside the second automatic rotary chuck 403, and the other end is suspended in the air. Several plasma cutting heads 406 installed on the cutting bracket 402 are located above the small guide tube, which facilitates cutting holes in the small guide tube.

[0032] It is also equipped with a pushing device for pushing the small guide tube away from the second automatic rotary chuck 403 after the hole is cut. The pushing device includes: a pushing cylinder 407 fixedly installed on the frame 0; a guide rail 408 installed parallel to the feeding guide rail 401; a guide groove 409 slidably connected on the guide rail 408; a pushing plate 410 fixedly installed on the guide groove 409; and the pushing plate 410 is also fixedly connected to the pushing cylinder 407; a telescopic cylinder 4 is fixedly installed on the pushing plate 410. 11. The output end of the telescopic cylinder 411 faces the feeding guide rail 401 and is higher than the upper surface of the feeding trough 404. That is, when the telescopic cylinder 411 is started, its output end is located above the feeding trough 404. A push plate 412 is fixedly installed on the output end of the telescopic cylinder 411. The lower end of the push plate 412 is L-shaped, that is, one section plays a supporting role. The push plate 412 and the output end of the telescopic cylinder 411 are L-shaped, and the push plate 412 is below the output end of the telescopic cylinder 411.

[0033] The pointed tip making unit 5 includes: a pointed tip making guide rail 501, a sliding groove 502 installed on the pointed tip making guide rail 501, and a conveying cylinder 503 fixedly installed on the frame 0. The output end of the conveying cylinder 503 is fixedly connected to the sliding groove 502, and a portion of the side of the sliding groove 502 can be extended. The extended portion is fixedly connected to the output end of the conveying cylinder 503. A clamping cylinder 504 is hinged to the extended portion. The clamping cylinder 504 faces the sliding groove 502, and its output end is hinged to a clamping groove 505. The clamping groove 505 is hinged to the sliding groove 502. Under the drive of the clamping cylinder 504, the clamping groove 505 can rotate at least 90°.

[0034] A cylinder 506 is placed at the end of the pointed guide rail 501. The cylinder 506 is laid flat, with its axis aligned with the center of the feeding groove 404 and the pressing groove 505. A chip-extraction port 507 is opened on the downward-facing side of the cylinder 506. Two rotating rings 508 are installed inside the cylinder 506, one near the inlet of the cylinder 506 and the other at the outlet of the cylinder 506. The rotating ring 508 at the outlet of the cylinder 506 is driven by an independent motor. There is a circular plate 509 at the center of this rotating ring 508. The circular plate 509 is connected to the rotating ring 508 by a support plate 510. The center of the circular plate 509 is connected to the rotating ring 508 at the inlet of the cylinder 506 by several connecting blocks 511. These connecting blocks 511 are evenly distributed in an umbrella shape. A cutting tool 512 for cutting small guide tubes is installed on the inner side of each of these connecting blocks 511. The conical cavity formed by these cutting tools 512 is the shape of the pointed tip of the small guide tube.

[0035] The cylinder 506 is connected to the air pump 513 so as to cool the inside of the cylinder 506 with cold air.

[0036] It is also equipped with a robotic arm (not shown in the existing technical drawings) to pick up the small tube after the tip is made and move it to the next process.

[0037] The working process is as follows: After setting various parameters on the central control system, the entire system is started. The blocking cylinder 105 extends to block the opening 1021. With the assistance of the vibrator 106, the small guide tube enters the feeding channel 102 from the storage hopper 101. The blocking cylinder 105 is activated to retract the baffle 104, opening the opening 1021. The small guide tube rolls into the conveying groove 1031. Then the blocking cylinder 105 extends again to block the remaining small guide tubes in the feeding channel 102, waiting for the next roll.

[0038] The push cylinder 107 is activated to push the small guide tube away from the conveying groove 1031. The small guide tube enters the annular groove 2021 of the conveying roller 202, driving the small guide tube forward and into the first automatic rotary chuck 203. A sensor is installed in front of the first automatic rotary chuck 203. After the sensor detects the small guide tube (this sensor only works for the first small guide tube that passes through; it does not work for subsequent small guide tubes), the first automatic rotary chuck 203 is activated to clamp the front end of the small guide tube. If the first sensor 205 does not detect the end of the small guide tube at this time, the automatic welding head 204 does not move, the first automatic rotary chuck 203 releases the small guide tube, and the conveying roller 202 continues to convey the small guide tube forward until the first sensor 205 detects the end of the small guide tube. The first automatic rotary chuck 203 clamps the small guide tube again, the first cylinder 206 is activated, raising the first pressure sensor 207 and placing it against the tail end of the small guide tube, waiting for the next small guide tube. The conveying process begins as the next small guide tube is delivered to its position. The first pressure sensor 207 detects the pressure, and the conveying roller 202 stops conveying. Simultaneously, the automatic conveying unit stops conveying, and the first cylinder 206 drives the first pressure sensor 207 to fall. The automatic welding head 204 welds the two small guide tubes. After the first welding point is formed, the first automatic rotary chuck 203 rotates under the drive of the motor, and the automatic welding head 204 welds the two small guide tubes. After welding is completed, the ultrasonic detection sensor 208 detects the weld. If it is not qualified, an alarm is issued, and the machine is stopped for maintenance. If it is qualified, the automatic welding head 204 stops operating, the first automatic rotary chuck 203 stops rotating, and the small guide tube is released. The conveying roller 202 continues to convey the small guide tube forward. The automatic conveying unit and the automatic welding unit repeat the above actions, continuously conveying the welded small guide tubes forward to the conveying roller group 301 of the length cutting unit 3, where they enter the guide cavity formed by the guide grooves 3011 on the two rollers.

[0039] The conveyor roller assembly 301 drives the small guide tube forward through the compression of the two rollers and passes through the lower clamping block 308. A sensor (e.g., ...) is also installed in front of the lower clamping block 308. Figure 10(The unlabeled part in the upper left corner shown) When the sensor senses the end of the small guide tube, the baffle plate 304 rises to block the small guide tube. After the second pressure sensor 310 on the baffle plate 304 senses the pressure, it controls the upper clamping block 307 to press down through the central control system. Together with the lower clamping block 308, they press down the small guide tube. At the same time, the automatic feeding unit 1 and the automatic welding unit in front temporarily stop, the cutting blade 306 falls and cuts the small guide tube. Then the automatic feeding unit 1 and the automatic welding unit continue to start, the baffle plate 304 falls, the upper clamping block 307 rises, and the conveying roller group 301 continues to drive the small guide tube forward. At the same time, it pushes the cut small guide tube away from the lower clamping block 308 and enters the feeding groove 404 of the multi-hole cutting unit 4.

[0040] There is also a sensor in front of the feeding trough 404. When the small guide tube falls completely onto the feeding trough 404, the sensor senses the end of the small guide tube, and the feeding cylinder 405 starts to move forward, conveying the feeding trough 404. The small guide tube is inserted into the second automatic rotary chuck 403 in front of the feeding guide rail 401. There is also a sensor in front of the second automatic rotary chuck 403. When this sensor senses the end of the small guide tube, the second automatic rotary chuck 403 clamps the small guide tube, the feeding cylinder 405 retracts, the rear end of the small guide tube is suspended in the air, and the second automatic rotary chuck 403 rotates under the drive of the motor, plasma cutting the hole. The head 406 performs the hole-cutting operation. During the hole-cutting process, in order to avoid collisions between different processes, the subsequent processes (referring to the initial automatic feeding unit 1, etc.) can be paused (if there is enough time and distance, they can also be kept running, depending on the site conditions). After the plasma hole-cutting head 406 finishes the hole-cutting operation, the motor stops running, the second automatic rotary chuck 403 releases the small guide tube, and the subsequent processes continue to start. The push-off cylinder 407 and the telescopic cylinder 411 are started, the push plate 412 drags the rear end of the small guide tube and conveys it forward, pushing the small guide tube away from the second automatic rotary chuck 403 and into the sliding groove 502 of the tip-making unit 5.

[0041] A sensor is located in front of the tip-making guide rail 501. Once the sensor detects the end of the small guide tube, the clamping cylinder 504 is activated, the clamping groove 505 flips and clamps the small guide tube together with the sliding groove 502. The conveying cylinder 503 is activated, conveying the small guide tube forward. Simultaneously, the rotating ring 508 rotates under the drive of a motor, and the air pump 513 pumps cold air into the cylinder 506 (the air pump 513 can be connected to a refrigeration unit). The small guide tube enters the range of the rotating ring 508 for tip cutting, ultimately producing the desired tip. After cutting, the conveying cylinder 503 retracts, and the telescopic cylinder 411 also retracts. The robotic arm then picks up the tip-made small guide tube and moves it to the next process, which is actually the product container, completing the production of the small guide tube. During the production process, the need to pause subsequent processes is determined based on the actual situation. If there is no impact, no pause is needed; otherwise, a pause is made.

[0042] In this invention, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can mean a fixed connection, a detachable connection, or an integral connection; "link" can mean a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] In the description of this invention, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0044] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0046] Except for the technical features described in the specification, all other technical features are known to those skilled in the art.

Claims

1. A fully automated CNC small guide tube production line, comprising a frame (0) and a central control system, characterized in that, The frame (0) is linearly arranged along its length by an automatic feeding unit (1), a raw material welding unit (2), a fixed-length cutting unit (3), a multi-hole cutting unit (4), and a tip-making unit (5); the automatic feeding unit (1), the raw material welding unit (2), the fixed-length cutting unit (3), the multi-hole cutting unit (4), and the tip-making unit (5) are electrically connected to the central control unit, wherein, The automatic feeding unit (1) includes: a raw material storage rack, a conveying guide rail (103), and an automatic pushing mechanism. The raw material storage rack includes a storage hopper (101), which has a discharge channel (102) that allows only one small guide tube to pass through. The conveying guide rail (103) is located below the discharge channel (102) and has a conveying groove (1031) located on the side of the discharge channel (102). The discharge channel (102) has an opening (1021) on the side facing the conveying groove (1031), and a baffle (104) is provided at the opening (1021). The baffle (104) is connected to a blocking cylinder (105). The automatic pushing mechanism includes a pushing cylinder (107), the output end of which is coaxial with the conveying groove (1031). The raw material welding unit (2) includes a welding bracket (201), on which an adjustable automatic welding head (204) is provided. Next to the automatic welding head (204) is a first sensor (205). Below the welding bracket (201) are several conveying rollers (202) arranged along the extension line of the conveying guide rail (103). Each conveying roller (202) is provided with a ring groove (2021). The outer side of the conveying roller (202) farthest from the conveying guide rail (103) is provided with a first automatic rotary chuck (203). Below the automatic welding head (204) is a first cylinder (206). The output end of the first cylinder (206) faces upward and is fixed with a first pressure sensor (207). The thickness of the first pressure sensor (207) is less than 0.5 mm.

2. The fully automated CNC small tubing production line according to claim 1, characterized in that, The fixed-length cutting unit (3) includes a conveying roller group (301), a cutting bracket (302), a clamping bracket (303), and a baffle plate (304) that can move up and down, arranged in sequence. The cutting bracket (302) is provided with a cutting blade (306) that can move up and down. The clamping bracket (303) is provided with an upper clamping block (307) that can move up and down. The frame (0) below the upper clamping block (307) is provided with a lower clamping block (308). The upper clamping block (307) and the lower clamping block (308) are provided with a V-groove (309) on their opposite sides. The baffle plate (304) is provided with a second pressure sensor (310).

3. The fully automated CNC small tubing production line according to claim 2, characterized in that, The multi-hole cutting unit (4) includes a feeding guide rail (401), a cutting bracket (402), and a second automatic rotary chuck (403). The feeding guide rail (401) is provided with a feeding groove (404), which is connected to a feeding cylinder (405). The cutting bracket (402) is provided with a plurality of plasma cutting heads (406). It is also equipped with a pushing device for pushing the small guide tube away from the second automatic rotary chuck (403) after the cutting is completed.

4. The fully automated CNC small tubing production line according to claim 3, characterized in that, The pushing device includes a pushing cylinder (407) fixed on the frame (0) and a pushing plate (410) installed through a guide groove (409). The output end of the pushing cylinder (407) is fixedly connected to the pushing plate (410). A telescopic cylinder (411) with its output end facing the feeding guide rail (401) is fixed on the pushing plate (410). A push plate (412) is provided at the output end of the telescopic cylinder (411). The output end of the telescopic cylinder (411) is higher than the upper surface of the feeding groove (404).

5. The fully automated CNC small tubing production line according to claim 3, characterized in that, The pointed tip making unit (5) includes: a pointed tip making guide rail (501), the pointed tip making guide rail (501) is provided with an upper sliding groove (502), a conveying cylinder (503) is provided on the frame (0), the output end of the conveying cylinder (503) is fixedly connected to the sliding groove (502), a pressing cylinder (504) is hinged to the output end of the conveying cylinder (503), the sliding groove (502) is hinged to the pressing groove (505), and the output end of the pressing cylinder (504) is hinged to the pressing groove (505). The tip-making guide rail (501) has a flat cylindrical tube (506) fixed at its end. The lower end of the cylindrical tube (506) has a chip-leaking port (507). The cylindrical tube (506) has two rotating rings (508) inside. Between the two rotating rings (508) are several umbrella-shaped connecting blocks (511). Each connecting block (511) has a cutting tool (512) fixed on it. The cylindrical tube (506) is connected to an air pump (513). A robotic arm for gripping the small guide tube after the tip-making is completed is also provided.

6. The fully automated CNC small tubing production line according to claim 1, characterized in that, The conveying guide rail (103) at the opening (1021) is an inclined surface (1032).

7. The fully automated CNC small tubing production line according to claim 1, characterized in that, The automatic welding head (204) is a plasma welding head, and an ultrasonic detection sensor (208) is provided next to the plasma welding head.

8. The fully automated CNC small tubing production line according to claim 1, characterized in that, The feeding channel (102) is equipped with a vibrator (106), which is located at the upper end of the feeding channel (102).

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