Laser pipe cutting machine and control method
By introducing modules such as baffles and adjustable angle guide plates for collaborative control with a host computer into the laser tube cutting machine, the problem of mixed tube collection has been solved, intelligent sorting has been achieved, and production efficiency and sorting accuracy have been improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-25
- Publication Date
- 2026-03-10
AI Technical Summary
Traditional laser tube cutting machines result in a mixture of tubes of different lengths and specifications, requiring manual secondary sorting, which reduces production efficiency and sorting accuracy.
The system employs a first lifting stop, a second lifting stop, an adjustable-angle guide plate, a length measurement module, and a positioning detection module, all controlled collaboratively by a host computer, to achieve isolation, length measurement, directional guidance, and sorting of pipes on the inclined frame.
Intelligent sorting of pipes has been achieved, which has improved production efficiency and sorting accuracy, ensured that pipes are accurately rolled into the corresponding sorting slots, and guaranteed the continuity and stability of the sorting process.
Smart Images
Figure CN121624698A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of laser pipe cutting machine, in particular to a laser pipe cutting machine and control method. BACKGROUND
[0002] The laser pipe cutting machine is widely used in the field of metal manufacturing as an efficient and precise pipe processing equipment.
[0003] The laser pipe cutting machine usually comprises a laser pipe cutting machine body and a blanking device located downstream of the laser pipe cutting machine body, and the blanking device is used for collecting the pipe cut by the laser.
[0004] However, when different lengths of pipes are continuously processed, the above-mentioned blanking method will cause pipes of different length specifications to be mixed and stacked in the receiving groove.
[0005] Therefore, how to realize intelligent sorting of the pipes cut by the laser to improve production efficiency and sorting accuracy is a technical problem to be solved at present. SUMMARY
[0006] The present application is aimed at the above-mentioned deficiencies in the prior art, and provides a laser pipe cutting machine and control method, which can realize intelligent sorting of the pipes cut by the laser, thereby improving production efficiency and sorting accuracy.
[0007] To achieve the above-mentioned purpose, the present application provides the following technical scheme: A laser pipe cutting machine comprises a blanking device located downstream of a laser pipe cutting machine body, the blanking device comprises an inclined rack and a receiving groove located downstream of the inclined rack, and further comprises a first lifting stop piece, a second lifting stop piece, a guide plate, an angle adjusting piece, a length measuring module, a position detection module and an upper computer. The first lifting stop piece is arranged on the inclined rack, and is used for blocking the pipe with the lowest position on the inclined rack. The second lifting stop piece is arranged upstream of the first lifting stop piece, and is used for separating the pipe with the lowest position and the pipe with the second lowest position. The guide plate is arranged downstream of the first lifting stop piece, the upper end of the guide plate is pivotally connected with the inclined rack, the guide plate is arranged above the receiving groove, and the receiving groove is provided with at least two classification grooves. The angle adjusting piece is used for adjusting the angle of the guide plate. The length measuring module is used for measuring the length of the pipe with the lowest position, and transmits the length information to the upper computer. The position detection module is used for detecting whether the guide plate is adjusted to position, and transmits the detection information to the upper computer. The host computer is configured to receive information from the length measuring module and the position detection module, and control the actions of the first lifting stopper, the second lifting stopper and the angle adjusting member, so that the pipe with the lowest position falls into the corresponding classification groove.
[0008] Further, the unloading detection module is further included, and the unloading detection module is configured to detect whether the pipe exists on the guide plate and transmit the detection information to the host computer.
[0009] Further, the first lifting stopper includes a plurality of first lifting members and a first stop plate arranged at the output end of the first lifting member, the first lifting member is arranged in the interior of the inclined rack, the inclined rack is provided with a first avoidance window for allowing the first stop plate to move up and down, the length measuring module includes a plurality of micro switches, one micro switch is arranged on each first stop plate, and the micro switch is electrically connected with the host computer.
[0010] Further, the guide plate adopts a first telescopic plate, the first telescopic plate includes at least two first single plates, adjacent two first single plates are in sliding connection, the uppermost first single plate is pivotally connected with the inclined rack, and the lower end of the lowermost first single plate is provided with a pin shaft.
[0011] Further, the position detection module is configured to detect the inclination angle of the guide plate.
[0012] Further, the guide plate adopts a second telescopic plate, and the second telescopic plate is provided with a telescopic detection module, the telescopic detection module is configured to detect the length of the second telescopic plate and transmit the detection information to the host computer.
[0013] Further, the reference member, the pushing member and the reference detection module are further included, the reference member is arranged on the side of the inclined rack close to the body of the laser pipe cutting machine, the pushing member is arranged between the first lifting stopper and the second lifting stopper, the pushing member is configured to push the pipe with the lowest position to the reference member, and the reference detection module is arranged on the reference member, the reference detection module is configured to detect whether the pipe with the lowest position abuts against the reference member and transmit the detection information to the host computer.
[0014] A control method of a laser pipe cutting machine, based on the laser pipe cutting machine, includes the following steps: S101, the host computer receives a feeding command, and the host computer controls the length measuring module to measure the length of the pipe with the lowest position; S102, after the host computer receives the length information of the length measuring module, the host computer controls the angle adjusting member to adjust the angle of the guide plate until the position detection module detects that the guide plate is adjusted to the position; S103, after the host computer receives the arrival information of the arrival detection module, the host computer controls the second lifting stopper to rise, the second lifting stopper separates the lowest pipe and the second lowest pipe, and then the host computer controls the first lifting stopper to descend, so that the lowest pipe falls into the target classification groove along the guide plate; S104, when the unloading detection module detects that the lowest pipe leaves the guide plate, the host computer controls the first lifting stopper, the second lifting stopper and the angle adjusting piece to reset.
[0015] A control method of a laser pipe cutting machine, based on the laser pipe cutting machine, comprising the following steps: S201, the host computer receives a feeding command, and the host computer controls the length measuring module to measure the length of the lowest pipe; S202, after the host computer receives the length information of the length measuring module, the host computer controls the angle adjusting piece to adjust the angle of the second telescopic plate, and the host computer controls the second telescopic plate to telescope until the arrival detection module detects that the second telescopic plate is adjusted to the position, and the telescopic detection module detects that the second telescopic plate is telescoped to the target length; S203, after the host computer receives the arrival information of the arrival detection module and the detection information of the telescopic detection module, the host computer controls the second lifting stopper to rise, the second lifting stopper separates the lowest pipe and the second lowest pipe, and then the host computer controls the first lifting stopper to descend, so that the lowest pipe falls into the target classification groove along the second telescopic plate; S204, when the unloading detection module detects that the lowest pipe leaves the second telescopic plate, the host computer controls the first lifting stopper, the second lifting stopper, the angle adjusting piece and the second telescopic plate to reset.
[0016] A control method of a laser pipe cutting machine, based on the laser pipe cutting machine, comprising the following steps: S301, the host computer receives a feeding command, and the host computer controls the pushing piece to push the lowest pipe to move towards the reference piece until the reference detection module detects that the lowest pipe abuts against the reference piece; S302, after the host computer receives the detection information of the reference detection module, the host computer controls the length measuring module to measure the length of the lowest pipe; S303, after the host computer receives the length information of the length measuring module, the host computer controls the angle adjusting piece to adjust the angle of the guide plate until the arrival detection module detects that the guide plate is adjusted to the position; S304, after the host computer receives the arrival information of the arrival detection module, the host computer controls the second lifting stopper to rise, the second lifting stopper separates the lowest pipe and the second lowest pipe, and then the host computer controls the first lifting stopper to descend, so that the lowest pipe rolls into the target classification groove along the guide plate; S305, when the unloading detection module detects that the lowest pipe leaves the guide plate, the host computer controls the pushing piece, the first lifting stopper, the second lifting stopper and the angle adjusting piece to reset. Compared with the prior art, the beneficial effects of the present application are: 1. By setting the first lifting stopper, the second lifting stopper, the angle-adjustable guide plate, the length measuring module and the arrival detection module controlled by the host computer, the isolation, length measurement, directional guidance and classification of the lowest pipe on the inclined rack are realized. The host computer controls the guide plate to adjust to the position according to the measured length, ensures that the pipe accurately rolls into the corresponding classification groove, solves the problem of mixed collection of multi-specification pipes after continuous cutting, realizes intelligent sorting, and improves production efficiency and sorting accuracy.
[0017] 2. By adding the unloading detection module, it can detect whether the pipe has completely left the guide plate, so as to accurately judge the completion time of single unloading cycle, provide a reliable signal for the host computer to control each executing component (such as the first lifting stopper, the second lifting stopper and the angle adjusting piece) to reset safely and orderly, ensure the continuity and stability of the sorting process, and avoid interference or sorting errors caused by too early or too late resetting action.
[0018] 3. The first lifting stopper adopts a structure in which a plurality of first lifting pieces drive the first stop plate, and a micro switch is integrated on the first stop plate. This structure not only realizes stable and reliable blocking function, but also ingeniously uses the micro switch as a length measurement probe. When the pipe rolls to be blocked by the first stop plate, the side wall will trigger the micro switch at the corresponding position, so that the length of the pipe can be judged according to the number of micro switches touched by the side wall of the pipe, and the detection is more reliable.
[0019] 4. The guide plate adopts a first telescopic plate, and is matched with the long hole of the side wall of the receiving groove through a pin shaft. The position of the pin shaft is detected by the arrival detection module (infrared distance sensor), and the host computer can accurately control the extension length and the inclination angle of the guide plate, so that the lower end of the guide plate can accurately move above the classification groove at different distances. This design increases the coverage range of the end of the guide plate, can adapt to a wider distribution of classification groove layout, and improves the universality.
[0020] 5. The in-place detection module directly uses an angle sensor to detect the inclination angle of the guide plate. This method can directly and real-timely feedback the actual posture of the guide plate. The host computer can realize closed-loop control of the angle adjusting member by comparing the actual angle with the target inclination angle, so that the angle adjustment of the guide plate is more accurate and reliable.
[0021] 6. The guide plate uses a second telescopic plate driven by a second telescopic member, and a telescopic detection module is additionally provided. The host computer can cooperatively control the angle adjusting member and the second telescopic member to independently adjust the inclination angle and the length of the guide plate, so that the inclination angle and the length of the guide plate can be adjusted, the coverage range of the end of the guide plate is increased, and the guide plate can adapt to a more widely distributed classification groove layout and improve the versatility.
[0022] 7. By additionally providing a reference member, a pushing member and a reference detection module, the pipe at the lowest position is pushed to abut against the reference member before being discharged, so that the end part thereof is aligned. This step eliminates the randomness of the axial position of the pipe on the inclined rack, provides a unified measurement reference for the subsequent length measurement module, thereby improving the accuracy of length measurement and making the classification result more reliable.
[0023] 8. The control method provided by the present application can correspond to the laser pipe cutting machine, has clear logic and definite steps. The method details how to cooperatively control various modules (measurement, detection and execution) to realize automatic sorting and improve production efficiency and sorting accuracy. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 is a perspective view of a laser pipe cutting machine; Figure 2 is a front view of a laser pipe cutting machine; Figure 3 is a perspective view of a discharge device Figure 1 ; Figure 4 is a perspective view of a discharge device Figure 2 ; Figure 5 is a right view of a discharge device; Figure 6 is a front view of a discharge device; Figure 7 is a perspective view of an inclined rack; Figure 8 is a perspective view of a receiving groove; Figure 9 is a right view of a receiving groove; Figure 10 is a perspective view of a first telescopic member and a first telescopic plate Figure 1 ; Figure 11 is a perspective view of a first telescopic member and a first telescopic plateFigure 2 ; Figure 12 is a perspective view of the first telescopic piece and the second telescopic piece; Figure 13 is a perspective view of the lifting roller set; Figure 14 is a perspective view of the first lifting stop piece, the second lifting stop piece and the pushing piece; Figure 15 is a perspective view of the first lifting stop piece and the second lifting stop piece; Figure 16 is a perspective view of the pushing piece; Figure 17 is a schematic diagram of the principle of embodiment 2; Figure 18 is a schematic diagram of the principle of embodiment 4; Figure 19 is a schematic diagram of the principle of embodiment 6; Figure 20 is a schematic diagram of the principle of embodiment 8.
[0025] Explanation of reference signs: 100 - inclined shelf, 110 - waste window, 120 - roller window, 130 - first avoidance window, 140 - second avoidance window, 150 - third avoidance window, 200 - material receiving groove, 210 - classification groove, 220 - long hole, 300 - lifting roller set, 310 - roller lifting piece, 320 - wheel seat, 330 - roller, 400 - waste drawer, 500 - first lifting stop piece, 510 - first lifting piece, 520 - first stop plate, 600 - second lifting stop piece, 610 - second lifting piece, 620 - second stop plate, 710 - first telescopic piece, 711 - first single plate, 712 - pin shaft, 720 - second telescopic piece, 721 - second single plate, 722 - second telescopic piece, 800 - first telescopic piece, 910 - micro switch, 920 - angle sensor, 930 - infrared distance measuring sensor, 940 - unloading detection module, 950 - telescopic detection module, 960 - reference detection module, 1000 - fixed plate, 1100 - pushing piece, 1110 - linear module, 1111 - support, 1112 - motor, 1113 - lead screw, 1114 - sliding rod, 1115 - nut, 1120 - pushing plate. DETAILED DESCRIPTION
[0026] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.
[0027] Embodiment 1 Referring to Figure 1 and Figure 2 , a laser pipe cutting machine comprises a laser pipe cutting machine body and a blanking device downstream of the laser pipe cutting machine body.
[0028] Referring to Figure 1 , the blanking device comprises an inclined chute 100. A receiving groove 200 is arranged downstream of the chute 100, and at least two classification grooves 210 are arranged side by side in the chute 100 along the rolling direction of the pipe, for collecting pipes of different lengths.
[0029] Referring to Figure 7 , the chute 100 is provided with a roller window 120. Referring to Figure 3 and Figure 4 , a plurality of lifting roller sets 300 are arranged inside the chute 100 below the roller window 120. Referring to Figure 13 , each lifting roller set 300 comprises a roller lifting member 310 (such as a pneumatic cylinder), a roller seat 320 and a roller 330. The roller lifting member 310 is fixedly installed inside the chute 100, and the output end of the roller lifting member 310 is fixedly installed with the roller seat 320, and the roller 330 is installed on the roller seat 320. When the roller lifting member 310 drives the roller 330 to rise and protrude out of the roller window 120, the pipe can be lifted, which facilitates holding the tail end of the pipe during cutting of the pipe by the laser pipe cutting machine body, and improves the stability of the pipe during the cutting operation. When the roller lifting member 310 drives the roller 330 to descend back into the chute 100, the pipe originally on the roller 330 falls on the chute 100 and rolls down.
[0030] Referring to Figure 7 , the chute 100 is provided with a waste window 110. Referring to Figure 4 , a waste drawer 400 is further slidably arranged inside the chute 100 below the lifting roller set 300, and the waste drawer 400 can be pulled out from the rear side of the chute 100. The waste segments generated by cutting can directly fall into the waste drawer 400 through the waste window 110 for collection, so as to realize automatic separation of waste and finished products.
[0031] In order to realize intelligent sorting of the pipe, the embodiment further comprises a first lifting stop piece 500, a second lifting stop piece 600, a guide plate, an angle adjusting piece, a length measuring module, a position detection module and a host computer.
[0032] Referring to Figure 3 , the first lifting stopper 500 is arranged at the downstream end of the chute 100, for blocking the pipe to be sorted in the lowest position. Referring to Figure 14 and Figure 15 , the first lifting stopper 500 includes a plurality of first lifting members 510 (such as pneumatic cylinders) and first stop plates 520 fixed to the output ends of the first lifting members 510. The first lifting members 510 are fixedly installed inside the chute 100. Referring to Figure 7 , the chute 100 is provided with first avoidance windows 130 for the first stop plates 520 to lift. In operation, referring to Figure 1 , the first stop plates 520 are lifted to block the pipe; and are lowered to release the pipe.
[0033] Referring to Figure 3 , the second lifting stopper 600 is arranged upstream of the first lifting stopper 500, for lifting to separate the pipe to be sorted (in the lowest position) from the adjacent pipe (in the second-lowest position) above, to prevent multiple pipes from rolling down at the same time. Referring to Figure 14 and Figure 15 , the second lifting stopper 600 includes a plurality of second lifting members 610 (such as pneumatic cylinders) and second stop plates 620 fixed to the output ends of the second lifting members 610. The second lifting members 610 are fixedly installed inside the chute 100. Referring to Figure 7 , the chute 100 is provided with second avoidance windows 140 for the second stop plates 620 to lift.
[0034] Referring to Figure 5 , the upper end of the guide plate is pivotally connected to the chute 100 by a hinge, and the plate body is suspended above the receiving groove 200, serving as a guide passage for the pipe to slide into the target classification groove 210.
[0035] Referring to Figure 5 , the angle adjusting member is used to drive the guide plate to change the inclination angle. In this embodiment, the angle adjusting member includes a first telescopic member 800 (such as an electric push rod, a pneumatic cylinder or an oil cylinder), the upper end of the first telescopic member 800 is pivotally connected to the middle or lower part of the guide plate, and the lower end is pivotally connected to the support of the chute 100. By the extension and retraction of the first telescopic member 800, the inclination angle of the guide plate (the included angle between the guide plate and the vertical side wall of the chute 100) can be controlled.
[0036] The length measuring module is used to measure the length of the pipe blocked by the first lifting stopper 500. As a specific implementation, the length measuring module includes a plurality of micro switches 910, referring to Figure 6 , one micro switch 910 is installed on each first stop plate 520, and they are arranged along the width direction of the chute 100 and electrically connected to the upper computer. The length of the pipe is determined according to the number of micro switches 910 touched by the side wall of the pipe. The more the number of micro switches 910 touched, the longer the length of the pipe.
[0037] In the embodiment, referring to Figure 3 , four first lifting members 510, four first baffles 520 and four micro switches 910 are provided. Referring to Figure 8 , three classification grooves 210 are provided in the receiving groove 200, which are respectively a first classification groove, a second classification groove and a third classification groove, and the three classification grooves are used to accommodate pipe materials with decreasing lengths in sequence. When only one micro switch 910 is triggered, the pipe material needs to be sent into the third classification groove; when two micro switches 910 are triggered, the pipe material needs to be sent into the second classification groove; and when three or four micro switches 910 are triggered, the pipe material needs to be sent into the first classification groove.
[0038] The in-place detection module is used to detect whether the guide plate is adjusted to a target angle (corresponding to a target classification groove 210). In the embodiment, an angle sensor can be directly installed at the hinge shaft of the guide plate.
[0039] The host computer serves as a control core, receives length and angle information, and controls the cooperative action of the first lifting member 500, the second lifting member 600 and the angle adjusting member.
[0040] In addition, referring to Figure 3 , the embodiment further includes a discharging detection module 940, such as a reflection type photoelectric sensor, which is installed at the lower end of the guide plate. The discharging detection module 940 is used to detect whether the pipe material has completely left the guide plate and transmit a signal to the host computer. According to the signal, the host computer controls the reset of each executing component after the pipe material is discharged, so as to prepare for the next sorting.
[0041] Embodiment 2 Referring to Figure 17 , a control method of a laser pipe cutting machine, based on the laser pipe cutting machine of embodiment 1, includes the following steps: S101, the host computer receives a discharging command, and the host computer controls the length measurement module to measure the length of the pipe material at the lowest position. Specifically, the host computer judges the length of the pipe material according to the triggering condition of the micro switch 910. When only one micro switch 910 is triggered, the pipe material needs to be sent into the third classification groove; when two micro switches 910 are triggered, the pipe material needs to be sent into the second classification groove; and when three or four micro switches 910 are triggered, the pipe material needs to be sent into the first classification groove. The first classification groove, the second classification groove and the third classification groove are used to accommodate pipe materials with decreasing lengths in sequence.
[0042] S102, after the host computer receives the length information of the length measurement module, the host computer controls the angle adjusting member to adjust the angle of the guide plate until the in-place detection module detects that the guide plate is adjusted in place.
[0043] Specifically, when the pipe material needs to be sent into the third classification slot, the target inclination angle of the guide plate is the third angle, the angle sensor 920 of the in-place detection module transmits the detected actual angle information to the upper computer, and the upper computer judges whether the actual angle information reaches the third angle. If yes, it means that the adjustment is in place, and step S103 is performed. If not, the angle of the guide plate continues to be adjusted until the third angle is reached.
[0044] When the pipe material needs to be sent into the second classification slot, the target inclination angle of the guide plate is the second angle, and the angle sensor 920 transmits the detected actual angle information to the upper computer. The upper computer judges whether the actual angle information reaches the second angle. If yes, it means that the adjustment is in place, and step S103 is performed. If not, the angle of the guide plate continues to be adjusted until the second angle is reached.
[0045] When the pipe material needs to be sent into the first classification slot 210, the target inclination angle of the guide plate is the first angle, and the angle sensor 920 transmits the detected actual angle information to the upper computer. The upper computer judges whether the actual angle information reaches the first angle. If yes, it means that the adjustment is in place, and step S103 is performed. If not, the angle of the guide plate continues to be adjusted until the first angle is reached.
[0046] S103, after receiving the in-place information of the in-place detection module, the upper computer controls the output end of all second lifting pieces 610 in the second lifting stop piece 600 to extend upward, so that all second stop plates 620 are raised, and the second stop plates 620 separate the lowest pipe material and the second lowest pipe material; then, the upper computer controls the output end of the first lifting piece 510 corresponding to the micro switch 910 triggered in step S101 in the first lifting stop piece 500 to descend, so that the corresponding first stop plate 520 descends, and the lowest pipe material falls into the target classification slot 210 along the guide plate.
[0047] S104, when the unloading detection module 940 detects that the lowest pipe material leaves the guide plate, the upper computer controls the first lifting stop piece 500, the second lifting stop piece 600 and the angle adjusting piece to reset.
[0048] Through the above control process of embodiment 2, it can be known that the laser pipe cutting machine of embodiment 1 has the following advantages: First, by setting the first lifting stop piece 500, the second lifting stop piece 600, the angle-adjustable guide plate, the length measurement module and the in-place detection module controlled by the host computer, the isolation, length measurement, directional guidance and classified blanking of the pipe at the lowest position on the inclined rack 100 are realized. The host computer controls the adjustment of the guide plate to the in-place according to the measured length, ensuring that the pipe is accurately rolled into the corresponding classification groove 210, solving the problem of mixed collection of multi-specification pipes after continuous cutting, realizing intelligent sorting and improving production efficiency and sorting accuracy.
[0049] Second, by adding the unloading detection module 940, it can detect whether the pipe has completely left the guide plate, so as to accurately judge the completion time of the single unloading cycle, provide a reliable signal for the host computer to control the safe and orderly resetting of each execution component (such as the first lifting stop piece 500, the second lifting stop piece 600, the angle adjustment piece), and ensure the continuity and stability of the sorting process, avoiding interference or sorting errors caused by too early or too late resetting action.
[0050] Third, the first lifting stop piece 500 adopts a structure in which a plurality of first lifting pieces 510 drive the first baffle 520, and the micro switch 910 is integrated on the first baffle 520. This structure not only realizes stable and reliable blocking function, but also ingeniously uses the micro switch 910 as a length measurement probe. When the pipe rolls to be blocked by the first baffle 520, the side wall will trigger the micro switch 910 at the corresponding position, so that the length of the pipe can be judged according to the number of micro switches 910 touched by the side wall of the pipe, and the detection is more reliable.
[0051] Fourth, the in-place detection module directly uses the angle sensor 920 to detect the inclination angle of the guide plate. This way can directly and real-timely feedback the actual posture of the guide plate. The host computer can realize closed-loop control of the angle adjustment piece by comparing the actual angle with the target inclination angle, so that the angle adjustment of the guide plate is more accurate and reliable, further ensuring the accuracy of the pipe rolling path.
[0052] The control method provided by embodiment 2 can correspond to the laser pipe cutting machine of embodiment 1, and the logic is clear and the steps are clear. This method details how to cooperatively control each module (measurement, detection, execution) to realize automatic sorting and improve production efficiency and sorting accuracy.
[0053] Embodiment 3: On the basis of embodiment 1, embodiment 3 is optimized as follows: Referring to Figure 10 and Figure 11, the guide plate adopts the first telescopic plate 710. The first telescopic plate 710 comprises at least two first single plates 711 which are slidably connected. Adjacent two first single plates 711 can be slidably connected through a slider rail structure or a slide pin and slide hole structure. When the slide pin and slide hole structure is used, a slide hole is formed on one first single plate 711, and a slide pin is welded on the other adjacent first single plate 711. The bottom end of the slide pin is further welded with an anti-falling block for preventing the separation of the adjacent two first single plates 711. The uppermost first single plate 711 is pivotally connected with the inclined rack 100, and the upper end of the first telescopic piece 800 is pivotally connected with the middle or lower part of the uppermost first single plate 711. The lower end of the lowermost first single plate 711 is provided with a pin shaft 712. Correspondingly, referring to Figure 9 A horizontal long hole 220 is formed on the side wall of the receiving groove 200. Referring to Figure 5 The pin shaft 712 can slide in the long hole 220. This structure allows the length and the inclination angle of the guide plate to be adjusted in linkage, thereby increasing the coverage range of the end of the guide plate.
[0054] In this embodiment 3, referring to Figure 7 The in-place detection module can be an infrared distance sensor 930 which is installed on the inclined rack 100 and used for detecting the horizontal distance between the pin shaft 712 and the infrared distance sensor 930. The host computer judges whether the extension length of the guide plate is adjusted in place through the distance value. When the extension length is adjusted in place, the angle of the guide plate is also adjusted in place.
[0055] When the first telescopic piece 800 performs the telescopic action, the inclination angle of the guide plate is adjusted, and the length of the guide plate is adjusted in linkage through the cooperation of the pin shaft 712 and the long hole 220. Specifically, when the first telescopic piece 800 is extended, the inclination angle of the guide plate (i.e. the included angle between the guide plate and the vertical side wall of the inclined rack 100) is increased, and the horizontal distance between the pin shaft 712 and the infrared distance sensor 930 is increased. Conversely, when the first telescopic piece 800 is shortened, the inclination angle of the guide plate is reduced, and the horizontal distance between the pin shaft 712 and the infrared distance sensor 930 is shortened.
[0056] Embodiment 4 Referring to Figure 18 A control method of a laser pipe cutting machine, based on the laser pipe cutting machine of embodiment 3, comprising the following steps: S201, the host computer receives the unloading command, and the host computer controls the length measurement module to measure the length of the pipe with the lowest position. Specifically, the host computer judges the length of the pipe according to the triggering condition of the micro switch 910. When only one micro switch 910 is triggered, the pipe needs to be sent into the third classification groove; when two micro switches 910 are triggered, the pipe needs to be sent into the second classification groove; when three or four micro switches 910 are triggered, the pipe needs to be sent into the first classification groove.
[0057] S202, after the host computer receives the length information of the length measuring module, the host computer controls the angle adjusting member to adjust the guide plate until the in-place detection module detects that the guide plate is adjusted to the position.
[0058] Specifically, when step S201 determines that the pipe needs to be sent into the third classification slot, the corresponding target horizontal distance between the pin shaft 712 and the infrared distance sensor 930 is the third distance. The infrared distance sensor 930 of the in-place detection module transmits the detected distance information to the host computer. The host computer determines whether the actual distance information reaches the third distance. If yes, it means that the adjustment is in place, and step S203 is performed. If not, continue to adjust until the third distance is reached.
[0059] When step S201 determines that the pipe needs to be sent into the second classification slot, the corresponding target horizontal distance between the pin shaft 712 and the infrared distance sensor 930 is the second distance. The infrared distance sensor 930 transmits the detected distance information to the host computer. The host computer determines whether the actual distance information reaches the second distance. If yes, it means that the adjustment is in place, and step S203 is performed. If not, continue to adjust until the second distance is reached.
[0060] When step S201 determines that the pipe needs to be sent into the first classification slot, the corresponding target horizontal distance between the pin shaft 712 and the infrared distance sensor 930 is the first distance. The infrared distance sensor 930 transmits the detected distance information to the host computer. The host computer determines whether the actual distance information reaches the first distance. If yes, it means that the adjustment is in place, and step S203 is performed. If not, continue to adjust until the first distance is reached.
[0061] S203, after the host computer receives the in-place information of the in-place detection module, the host computer controls the output end of all second lifting members 610 in the second lifting stop piece 600 to extend upward, so that all second baffle plates 620 are raised, and the second baffle plate 620 separates the lowest pipe and the second lowest pipe; Then, the host computer controls the output end of the first lifting member 510 corresponding to the micro switch 910 triggered in step S101 in the first lifting stop piece 500 to descend, so that the corresponding first baffle plate 520 descends, and the lowest pipe falls into the target classification slot 210 along the guide plate.
[0062] S204, when the unloading detection module 940 detects that the lowest pipe leaves the guide plate, the host computer controls the first lifting stop piece 500, the second lifting stop piece 600 and the angle adjusting member to reset.
[0063] Through the above control process of embodiment 4, the laser pipe cutting machine of embodiment 3 has the following advantages: The guide plate adopts the first telescopic plate 710 and is matched with the long hole of the sidewall of the material receiving groove 200 through the pin shaft 712. The in-place detection module (infrared distance sensor 930) detects the position of the pin shaft 712, and the host computer can accurately control the extension length and the inclination angle of the guide plate, so that the lower end of the guide plate can be accurately moved above the classification groove 210 at different distances. This design increases the coverage range of the end of the guide plate, can adapt to a wider distribution of the classification groove 210 layout, and improves the versatility.
[0064] Embodiment 5: On the basis of embodiment 1, the following optimizations are made in this embodiment 5: Referring to Figure 12 The guide plate adopts the second telescopic plate 720, which includes at least two second single plates 721 and a second telescopic member 722 (gas cylinder or electric push rod). The adjacent two second single plates 721 are slidingly connected, the uppermost second single plate 721 is pivotally connected with the inclined rack 100, the upper end of the second telescopic member 722 is fixedly installed with the uppermost second single plate 721, and the lower end of the second telescopic member 722 is fixedly installed with the lowermost second single plate 721. The length of the second telescopic plate 720 can be adjusted through the telescopic action of the second telescopic member 722.
[0065] The uppermost second single plate 721 is provided with a telescopic detection module 950 (such as an infrared distance sensor), which is used to detect the length of the second telescopic plate 720 (i.e. the distance between the uppermost second single plate and the lowermost second single plate) and transmit the detection information to the host computer.
[0066] Embodiment 6: Referring to Figure 19 A control method of a laser pipe cutting machine, based on the laser pipe cutting machine of embodiment 5, includes the following steps: S301, the host computer receives a discharging command, and the host computer controls the length measurement module to measure the length of the pipe with the lowest position. Specifically, the host computer judges the length of the pipe according to the triggering condition of the micro switch 910. When only one micro switch 910 is triggered, the pipe needs to be sent into the third classification groove; when two micro switches 910 are triggered, the pipe needs to be sent into the second classification groove; when three or four micro switches 910 are triggered, the pipe needs to be sent into the first classification groove.
[0067] S302, after the host computer receives the length information of the length measurement module, the host computer controls the angle adjusting member to adjust the angle of the second telescopic plate 720 as the guide plate, and controls the second telescopic plate 720 to telescope until the in-place detection module detects that the second telescopic plate 720 is adjusted to the target angle, and the telescopic detection module detects that the second telescopic plate 720 is telescoped to the target length.
[0068] Specifically, when the pipe needs to be sent into the third classification slot in step S301, the target inclination angle corresponding to the second telescopic plate 720 is the third angle, and the target length of the second telescopic plate 720 is the third length. The angle sensor 920 as the in-place detection module transmits the detected actual angle information to the upper computer, and the upper computer judges whether the actual angle information reaches the third angle; the telescopic detection module transmits the detected actual length of the second telescopic plate 720 to the upper computer, and the upper computer judges whether the actual length reaches the third length. If both of the above two conditions are met, it means that the adjustment is in place, and step S303 is performed; if any condition is not, continue to adjust until both conditions are met.
[0069] When the pipe needs to be sent into the second classification slot in step S301, the target inclination angle corresponding to the second telescopic plate 720 is the second angle, and the target length of the second telescopic plate 720 is the second length. The angle sensor 920 transmits the detected actual angle information to the upper computer, and the upper computer judges whether the actual angle information reaches the second angle; the telescopic detection module transmits the detected actual length of the second telescopic plate 720 to the upper computer, and the upper computer judges whether the actual length reaches the second length. If both of the above two conditions are met, it means that the adjustment is in place, and step S303 is performed; if any condition is not, continue to adjust until both conditions are met.
[0070] When the pipe needs to be sent into the first classification slot in step S301, the target inclination angle corresponding to the second telescopic plate 720 is the first angle, and the target length of the second telescopic plate 720 is the first length. The angle sensor 920 transmits the detected actual angle information to the upper computer, and the upper computer judges whether the actual angle information reaches the first angle; the telescopic detection module transmits the detected actual length of the second telescopic plate 720 to the upper computer, and the upper computer judges whether the actual length reaches the first length. If both of the above two conditions are met, it means that the adjustment is in place, and step S303 is performed; if any condition is not, continue to adjust until both conditions are met.
[0071] S303, after the upper computer receives the in-place information of the in-place detection module, the upper computer controls the output end of all second lifting pieces 610 in the second lifting stop piece 600 to stretch upward, so that all second stop plates 620 are lifted, and the second stop plate 620 separates the lowest pipe and the second lowest pipe; then, the upper computer controls the output end of the first lifting piece 510 corresponding to the micro switch 910 triggered in step S301 in the first lifting stop piece 500 to descend, so that the corresponding first stop plate 520 descends, and the lowest pipe falls into the target classification slot 210 along the second telescopic plate 720.
[0072] S304、When the unloading detection module 940 detects that the pipe with the lowest position leaves the second telescopic plate 720, the upper computer controls the first lifting stop piece 500, the second lifting stop piece 600, the angle adjusting piece, and the second telescopic piece 722 in the second telescopic plate 720 to reset.
[0073] Through the above control process of this embodiment 6, it can be known that the laser pipe cutting machine of embodiment 5 has the following advantages: The guide plate adopts the second telescopic plate 720 driven by the second telescopic piece 722, and the telescopic detection module 950 is additionally arranged. The upper computer can cooperatively control the angle adjusting piece and the second telescopic piece 722 to independently adjust the inclination angle and the length of the guide plate, which can not only adjust the inclination angle of the guide plate, but also adjust the length of the guide plate, thereby increasing the coverage range of the end of the guide plate, and can also adapt to a more widely distributed classification groove layout, and improve the versatility. That is, embodiment 5 gives a second guide plate structure different from embodiment 3.
[0074] Embodiment 7: On the basis of embodiment 1, embodiment 3 or embodiment 5, in order to ensure the consistency of the length measurement reference and eliminate the axial position error of the pipe on the inclined rack, this embodiment 7 is improved as follows: Referring to Figure 3 A reference piece is arranged on the side of the inclined rack 100 close to the side of the laser pipe cutting machine body, for example, a fixed plate 1000 welded and fixed on the inclined rack 100 is used as the reference piece. A pushing piece 1100 is arranged between the first lifting stop piece 500 and the second lifting stop piece 600. Referring to Figure 14 and Figure 16 The pushing piece 1100 includes a straight line module 1110 arranged in the interior of the inclined rack 100 and a pushing plate 1120 mounted on the driving end of the straight line module 1110. Referring to Figure 7 A third avoidance window 150 is arranged on the inclined rack 100, and the pushing plate 1120 moves in the third avoidance window 150.
[0075] Referring to Figure 16The straight line module 1110 comprises a support 1111, a motor 1112, a lead screw 1113, a sliding rod 1114, and a nut 1115. The support 1111 is fixedly installed in the interior of the inclined rack 100. Both ends of the lead screw 1113 are rotatably connected to the support 1111 through bearings. Both ends of the sliding rod 1114 are fixedly installed on the support 1111. The nut 1115 is threadedly connected to the lead screw 1113. The motor 1112 is fixedly installed on one side of the support 1111, and the output end of the motor 1112 is connected to one end of the lead screw 1113. The push plate 1120 is provided with a through hole for slidingly cooperating with the sliding rod 1114, and is provided with a position avoiding hole for allowing the lead screw 1113 to pass through. The push plate 1120 and the nut 1115 are fixedly installed together. When the motor 1112 is started, the push plate 1120 can be driven to move linearly through the thread cooperation between the lead screw 1113 and the nut 1115 and the sliding limiting cooperation between the sliding rod 1114 and the through hole.
[0076] Referring to Figure 7 A reference detection module 960 is installed on the reference member. The reference detection module 960 adopts an optical sensor, and is fixedly installed on the upper end of the fixed plate 1000. When the pipe material is pushed by the push plate 1120 to abut against the fixed plate 1000, the reference detection module 960 located on the upper end of the fixed plate 1000 can detect the pipe material, indicating that the pipe material has been axially aligned in place.
[0077] Embodiment 8 Referring to Figure 20 A control method of a laser pipe cutting machine, based on the laser pipe cutting machine of embodiment 7, comprising the following steps: S301, the host computer receives a blanking command, and the host computer controls the pushing member 1100 to push the pipe with the lowest position to move towards the reference member until the reference detection module 960 detects that the pipe with the lowest position abuts against the reference member.
[0078] S302, after the host computer receives the detection information of the reference detection module 960, the host computer controls the length measurement module to measure the length of the pipe with the lowest position.
[0079] S303, after the host computer receives the length information of the length measurement module, the host computer controls the angle adjusting member to adjust the angle of the guide plate until the in-place detection module detects that the guide plate is adjusted in place.
[0080] S304, after the host computer receives the in-place information of the in-place detection module, the host computer controls the second lifting stop member 600 to be lifted, the second lifting stop member 600 separates the pipe with the lowest position and the pipe with the second lowest position, and then the host computer controls the first lifting stop member 500 to be lowered, so that the pipe with the lowest position rolls into the target classification groove 210 along the guide plate.
[0081] S305、When the unloading detection module 940 detects that the pipe at the lowest position leaves the guide plate, the upper computer controls the pushing member 1100, the first lifting stop member 500, the second lifting stop member 600, and the angle adjusting member to reset.
[0082] Through the above control process of this embodiment 8, it can be known that the laser pipe cutting machine of embodiment 7 has the following advantages: By adding the reference member, the pushing member 1100 and the reference detection module 960, the pipe at the lowest position is pushed to and abuts against the reference member before being cut, so as to ensure that the end thereof is aligned. This step eliminates the randomness of the axial position of the pipe on the inclined rack 100, provides a unified measurement reference for the subsequent length measurement module, and thus improves the accuracy of the length measurement and makes the classification result more reliable.
[0083] This embodiment 8 also provides a control method corresponding to the foregoing device, which is clear in logic and definite in steps. This method details how to cooperatively control each module (measurement, detection, and execution) to realize automatic classification, so that the entire automatic classification process can be completely and efficiently operated.
[0084] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application belong to the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.
Claims
1. A laser tube cutting machine comprising a blanking device downstream of the body of the laser tube cutting machine, the blanking device comprising a ramp and a receiving trough downstream of the ramp, characterized in that, The first lifting stopper, the second lifting stopper, the guide plate, the angle adjusting member, the length measuring module, the in-place detection module and the upper computer are further included. The first lifting stopper is arranged on the inclined rack and is used for stopping the pipe with the lowest position on the inclined rack. The second lifting stopper is arranged upstream of the first lifting stopper and is used for separating the pipe with the lowest position and the pipe with the second lowest position. The guide plate is arranged downstream of the first lifting stopper, the upper end of the guide plate is pivotally connected to the inclined rack, and the guide plate is arranged above the material receiving groove. The angle adjusting member is used for adjusting the angle of the guide plate. The length measuring module is used for measuring the length of the pipe with the lowest position and transmitting the length information to the upper computer. The in-place detection module is used for detecting whether the guide plate is adjusted in place and transmitting the detection information to the upper computer. The upper computer is used for receiving the information of the length measuring module and the in-place detection module and controlling the actions of the first lifting stopper, the second lifting stopper and the angle adjusting member, so that the pipe with the lowest position falls into the corresponding classification groove.
2. A laser pipe cutting machine as claimed in claim 1, wherein, The unloading detection module is further included, which is used for detecting whether there is a pipe on the guide plate and transmitting the detection information to the upper computer.
3. A laser pipe cutting machine as claimed in claim 2, wherein, The first lifting stopper includes a plurality of first lifting members and a first stop plate arranged at the output end of the first lifting member, the first lifting member is arranged in the interior of the inclined rack, the inclined rack is provided with a first avoiding window for allowing the first stop plate to move up and down, the length measuring module includes a plurality of micro switches, each first stop plate is provided with a micro switch, and the micro switch is electrically connected to the upper computer.
4. A laser pipe cutting machine as claimed in claim 2, wherein, The guide plate adopts a first telescopic plate, the first telescopic plate includes at least two first single plates, the adjacent two first single plates are slidingly connected, the uppermost first single plate is pivotally connected to the inclined rack, the lower end of the lowermost first single plate is provided with a pin shaft, the side wall of the material receiving groove is provided with a long hole for cooperating with the pin shaft, and the in-place detection module is used for detecting the horizontal distance between the pin shaft and the inclined rack.
5. A laser pipe cutting machine as claimed in claim 2, wherein, The in-place detection module is used for detecting the inclination angle of the guide plate.
6. A laser pipe cutting machine as claimed in claim 5, wherein, The guide plate adopts a second telescopic plate, the second telescopic plate is provided with a telescopic detection module, the telescopic detection module is used for detecting the length of the second telescopic plate and transmitting the detection information to the upper computer.
7. A laser pipe cutting machine as claimed in any one of claims 2 to 6, wherein, The reference member, the material pushing member and the reference detection module are further included, the reference member is arranged on the side of the inclined rack close to the body of the laser pipe cutting machine, the material pushing member is arranged between the first lifting stopper and the second lifting stopper, the material pushing member is used for pushing the pipe with the lowest position to the reference member, the reference detection module is arranged on the reference member, and the reference detection module is used for detecting whether the pipe with the lowest position abuts against the reference member and transmitting the detection information to the upper computer.
8. A control method of a laser pipe cutting machine, characterized by, Based on the laser pipe cutting machine in any one of claims 2-5, the following steps are included: In S101, the upper computer receives a unloading command, and the upper computer controls the length measuring module to measure the length of the pipe with the lowest position. In S102, after the upper computer receives the length information of the length measuring module, the upper computer controls the angle adjusting member to adjust the angle of the guide plate until the in-place detection module detects that the guide plate is adjusted in place. S103, after the host computer receives the arrival information of the arrival detection module, the host computer controls the second lifting stopper to rise, the second lifting stopper separates the lowest pipe and the second lowest pipe, and then the host computer controls the first lifting stopper to descend, so that the lowest pipe falls into the target classification groove along the guide plate; S104, when the unloading detection module detects that the lowest pipe leaves the guide plate, the host computer controls the first lifting stopper, the second lifting stopper and the angle adjusting piece to reset.
9. A control method of a laser pipe cutting machine, characterized by, A laser pipe cutting machine based on claim 6, comprising the following steps: S201, the host computer receives the unloading command, and the host computer controls the length measuring module to measure the length of the lowest pipe; S202, after the host computer receives the length information of the length measuring module, the host computer controls the angle adjusting piece to adjust the angle of the second telescopic plate, and the host computer controls the second telescopic plate to telescope until the arrival detection module detects that the second telescopic plate is adjusted to the position, and the telescopic detection module detects that the second telescopic plate telescopes to the target length; S203, after the host computer receives the arrival information of the arrival detection module and the detection information of the telescopic detection module, the host computer controls the second lifting stopper to rise, the second lifting stopper separates the lowest pipe and the second lowest pipe, and then the host computer controls the first lifting stopper to descend, so that the lowest pipe falls into the target classification groove along the second telescopic plate; S204, when the unloading detection module detects that the lowest pipe leaves the second telescopic plate, the host computer controls the first lifting stopper, the second lifting stopper, the angle adjusting piece and the second telescopic plate to reset.
10. A control method of a laser pipe cutting machine, characterized by, A laser pipe cutting machine based on claim 7, comprising the following steps: S301, the host computer receives the unloading command, and the host computer controls the pushing piece to push the lowest pipe to move to the reference piece until the reference detection module detects that the lowest pipe abuts against the reference piece; S302, after the host computer receives the detection information of the reference detection module, the host computer controls the length measuring module to measure the length of the lowest pipe; S303, after the host computer receives the length information of the length measuring module, the host computer controls the angle adjusting piece to adjust the angle of the guide plate until the arrival detection module detects that the guide plate is adjusted to the position; S304, after the host computer receives the arrival information of the arrival detection module, the host computer controls the second lifting stopper to rise, the second lifting stopper separates the lowest pipe and the second lowest pipe, and then the host computer controls the first lifting stopper to descend, so that the lowest pipe falls into the target classification groove along the guide plate; S305, when the unloading detection module detects that the lowest pipe leaves the guide plate, the host computer controls the pushing piece, the first lifting stopper, the second lifting stopper and the angle adjusting piece to reset.