A laser numerical control automatic blanking and cutting system and process for pipe material

Abstract

The application relates to a laser numerical control automatic blanking and cutting system for pipe materials and a process, and relates to the technical field of pipe material laser cutting. The system comprises a laser cutting table, a laser cutting head arranged on the laser cutting table, a supporting plate fixed on the laser cutting head, an oxygen hose communicated with the laser cutting head, and adjusting components, pushing components, dust suction components and blanking components for rotating, pushing, dust suction and blanking of eccentric pipes. The oxygen hose is provided with a quantity control component and a speed control component for controlling the oxygen output and the gas conveying speed. The quantity control component comprises a quantity control block movably arranged on the oxygen hose, a detection frame for detecting the thickness of the eccentric pipe, and a quantity control piece for adjusting the quantity control block. The quantity control piece and the speed control piece can be matched to accurately control the gas conveying quantity and the gas conveying speed of the oxygen, and the oxygen supply can be accurately controlled according to the thickness and the temperature of the eccentric pipe at a specified position.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser cutting of pipe materials, and particularly relates to a laser numerical control automatic blanking and cutting system for pipe materials and a process. BACKGROUND

[0002] Pipe material is a material used for pipe fittings, and high-strength pipe material usually needs to be laser cut during production to improve the cutting accuracy of the pipe material. Oxygen needs to be input into the laser cutting head when the pipe material is laser cut to promote the intense oxidation reaction between the molten metal and the oxygen and accelerate the cutting speed.

[0003] The wall thickness of different parts of the pipe material needs to be determined according to specific application scenarios during production. In parts that need to bear high pressure, a relatively thick wall thickness is designed to increase the strength. In some non-critical parts, a relatively thin wall thickness is designed to save materials or reduce weight. For example, when conveying corrosive media and refrigerants in the horizontal section, an eccentric pipe is usually used instead of a concentric pipe with a homogeneous wall thickness. When conveying anticorrosive liquid, the pipe is usually not filled with the liquid, and therefore the anticorrosive performance requirement of the top of the pipe is relatively low. The thickness of the bottom side of the eccentric pipe is thicker than that of the top side, so as to ensure that the anticorrosive performance of the bottom side of the eccentric pipe is better than that of the top side.

[0004] When the traditional laser equipment performs laser cutting on the eccentric pipe, the oxygen input is constant. When the laser cutting head cuts the thin part of the eccentric pipe, too much oxygen spraying will intensify the oxidation reaction during cutting, causing the cut section to be black or dark yellow in color, and the cutting surface to be rough, which affects the cutting quality of the eccentric pipe. Moreover, oxygen is wasted. When the laser cutting head cuts the thick part of the eccentric pipe, insufficient oxygen supply will affect the cutting speed of the laser cutting head on the eccentric pipe. SUMMARY

[0005] To solve the problem that the existing eccentric pipe cutting machine cannot control the oxygen input amount and speed according to the thickness of the eccentric pipe and the temperature during laser cutting, and too much oxygen spraying will intensify the oxidation reaction during cutting when the laser cutting head cuts the thin part of the eccentric pipe, the present application provides a laser numerical control automatic blanking and cutting system for pipe materials and a process.

[0006] The laser numerical control automatic blanking and cutting system for pipe materials and the process provided by the present application adopt the following technical scheme:

[0007] A laser numerical control automatic blanking and cutting system for pipe materials, comprising a laser cutting table, a laser cutting head arranged on the laser cutting table, a support plate fixed to the laser cutting head, an oxygen hose connected to the laser cutting head, and an adjusting assembly, a pushing assembly, a dust collection assembly and a blanking assembly for rotating, pushing, dust collecting and blanking the eccentric pipe.

[0008] The oxygen hose is provided with a quantity control assembly and a speed control assembly for controlling the oxygen output and the gas conveying speed;

[0009] The quantity control assembly comprises a quantity control block movably arranged on the oxygen hose, a detection frame for detecting the thickness of the eccentric tube, and a quantity control piece for adjusting the quantity control block, and a gas gap is arranged between the inner side of the oxygen hose and the top of the quantity control block;

[0010] The speed control assembly comprises a Venturi tube communicated with the oxygen hose, a speed control plate movably arranged on the Venturi tube, a speed control piece for pushing the speed control plate, and a supply piece for supplying oxygen, and a fluid gap is arranged between the inner side of the Venturi tube and the right side of the speed control plate;

[0011] The adjusting assembly comprises a fixed gear movably arranged on the laser cutting table and a rotating piece for rotating the fixed gear.

[0012] By adopting the above technical scheme, the laser cutting head can be rotationally adjusted, translationally pushed, debris adsorbed, and discharged and collected when cutting the eccentric tube through the adjusting assembly, the pushing assembly, the dust suction assembly, and the discharging assembly, the cutting effect of the eccentric tube can be ensured, and the eccentric tube can be continuously cut;

[0013] When the laser cutting head cuts the eccentric tube, if the temperature of the eccentric tube is too high and the oxygen spraying speed is too slow, the molten slag and heat generated in the cutting surface cannot be blown away in time, cracks or gaps may appear on the cutting surface, affecting the quality of the cutting surface, and insufficient oxygen supply may also cause incomplete cutting, leaving uncut parts or insufficient cutting depth;

[0014] The quantity control assembly and the speed control assembly can control the gas conveying speed and the gas conveying amount of the oxygen in the oxygen hose to the laser cutting head, the thickness of the eccentric tube at a specified position can be detected through the quantity control assembly, the oxygen conveying amount can be controlled according to the thickness of the eccentric tube at the specified position cut by the laser cutting head, the thicker the thickness of the eccentric tube at the specified position cut, the more the oxygen conveying amount, the amount of oxygen in the oxygen hose entering the laser cutting head can be controlled according to the thickness of the eccentric tube at the specified position cut, so as to ensure the cutting speed of the laser cutting head on the eccentric tube, the temperature of the eccentric tube at the specified position cut can be detected through the speed control assembly, the oxygen conveying speed can be controlled according to the temperature of the eccentric tube at the specified position cut by the laser cutting head, the higher the temperature of the eccentric tube at the specified position cut, the faster the oxygen conveying speed, the speed of oxygen in the oxygen hose entering the laser cutting head can be controlled according to the temperature of the eccentric tube at the specified position cut, so as to ensure the cutting quality of the laser cutting head on the eccentric tube;

[0015] The eccentric pipe can be rotationally adjusted by the adjusting assembly, so that the laser cutting head can completely cut the eccentric pipe, and the eccentric pipe can be clamped and fixed;

[0016] In the prior art, the method for controlling the oxygen gas conveying amount according to the pipe thickness and the method for controlling the oxygen gas conveying speed according to the pipe temperature are usually realized by using a measuring device and a sensor to control a solenoid valve. However, the measuring device and the sensor may not work stably in a high-temperature and dusty environment, which affects the control effect of the solenoid valve. Meanwhile, the measuring device and the sensor are arranged near the laser cutting head and are interfered by an electromagnetic field, so that the electric control of the oxygen gas conveying amount and the oxygen gas conveying speed affects the control accuracy. In addition, the measuring device and the sensor are arranged too close to the high-temperature area and are affected by heat radiation, which results in an inaccurate or unstable temperature measurement result, and cannot guarantee the control effect of the oxygen gas conveying amount and the oxygen gas conveying speed. Compared with the method for controlling the oxygen gas conveying amount and the oxygen gas conveying speed by using the measuring device and the sensor, the method for controlling the oxygen gas conveying amount and the oxygen gas conveying speed by using the mechanical linkage structure has the advantages of high reliability, fast response speed, no need for external energy, low cost and good environmental adaptability.

[0017] Optionally, the amount control member comprises a connecting frame movably arranged on the laser cutting table, a ring-shaped spring fixed to the detection frame, a sliding rod fixed to the detection frame, a movable frame fixed to the sliding rod, a limiting frame fixed to the support plate, and a compression spring fixed to the limiting frame. The compression spring is fixedly connected with the amount control block. The amount control block is movably attached to the movable frame. The detection frame is movably attached to the inner wall of the eccentric pipe. The ring-shaped spring is fixedly connected with the connecting frame.

[0018] By using the above technical solution, the amount control member can control the oxygen gas conveying amount into the laser cutting head according to the thickness of the eccentric pipe at a specified position. When the rotating member drives the eccentric pipe to rotate, the thickness and shape of the eccentric pipe can in turn drive the detection frame and the movable frame to move, so that the ring-shaped spring is subjected to different rebound compression, and the thickness of the eccentric pipe is detected. When the movable frame moves, the amount control block can be moved, so that the compression spring is in a compressed or rebound state, the size of the gas gap can be adjusted, and when the detection frame moves to a position where the eccentric pipe is relatively thin, the gas gap will also be smaller, and the oxygen gas conveying amount can be controlled.

[0019] Optionally, the speed control member comprises a mounting frame fixed to the support plate, a heated block fixed to the mounting frame, and an adjusting block fixed to the heated block. The adjusting block can expand at high temperature and contract at low temperature, so that the adjusting block can drive the speed control plate to translate due to the temperature change, to control the moving range of the speed control plate. The speed control plate is fixedly connected with the adjusting block. The mounting frame is fixedly connected with the Venturi tube.

[0020] By adopting the technical scheme, the speed control member can control the oxygen gas speed into the laser cutting head according to the temperature of the specified position cutting of the eccentric tube. When the rotating member drives the eccentric tube to rotate, the cutting of the laser cutting head is matched with the cutting of the eccentric tube. The eccentric tube is heated and conducts heat to the heated block. The heated block can adjust the block to heat and detect the temperature of the eccentric tube during cutting. The higher the temperature of the eccentric tube during cutting, the greater the expansion of the adjusting block. The size of the adjusting block expansion can control the moving range of the speed control plate. The smaller the moving range of the speed control plate, the larger the fluid gap, and the oxygen gas speed can be controlled.

[0021] Optionally, the rotating member includes a first push rod rotatably arranged on the laser cutting table, a clamping plate, a transmission gear, and a servo motor fixed on the laser cutting table. The fixed gear and the clamping plate are movably connected with the eccentric tube. The clamping plate and the fixed gear are fixedly connected with the first push rod. The fixed gear is engaged with the transmission gear. The transmission gear is connected with the output end of the servo motor.

[0022] By adopting the technical scheme, the rotating member can drive the eccentric tube to rotate to facilitate the laser cutting head to completely cut the eccentric tube. The first push rod can drive the clamping plate to move. The fixed gear can clamp and fix the eccentric tube. At the same time, the servo motor can drive the transmission gear, the fixed gear, the first push rod, the clamping plate, and the eccentric tube to rotate in sequence. Then, the laser cutting head can completely cut the eccentric tube when the eccentric tube rotates.

[0023] Optionally, the supply member includes an oxygen tank fixed on the laser cutting table, a connecting hose communicated with the oxygen tank, and a control valve fixed on the connecting hose. The connecting hose is communicated with the Venturi tube.

[0024] By adopting the technical scheme, the supply member can continuously input oxygen into the laser cutting head. By adjusting the control valve, the connecting hose can be opened. The oxygen in the oxygen tank can be input into the laser cutting head through the connecting hose, the Venturi tube, and the oxygen hose in sequence, so that the laser cutting head can continuously supply oxygen.

[0025] Optionally, the dust collection assembly includes a support frame and a dust collection box fixed on the laser cutting table, a collection cover fixed on the support frame, a reverse blade rotatably arranged in the collection cover, a wind power frame rotatably arranged in the oxygen hose, and a collection hose communicated with the collection cover. The collection hose is fixedly connected with the support plate. The reverse blade is coaxially fixed with the wind power frame. The collection cover is communicated with the dust collection box.

[0026] By adopting the technical scheme, the dust suction assembly can adsorb and clean the debris generated during cutting of the eccentric tube, the oxygen flowing in the oxygen hose can drive the wind frame to rotate, and also can drive the reverse blades to rotate to generate suction force, so that the debris and dust generated during cutting of the eccentric tube can be sucked into the dust collecting box through the collecting hose and the collecting cover for collection, and the faster the flow rate of the oxygen in the oxygen hose is, the faster the wind frame rotates, and the stronger the suction force generated by the reverse blades rotating is.

[0027] Optionally, the discharging assembly comprises a discharging frame fixed on the laser cutting table, a storage box arranged on the discharging frame, and two partition plates fixed in the storage box.

[0028] By adopting the technical scheme, the discharging assembly can automatically discharge and collect the cut eccentric tube, the two partition plates can divide the storage box into three storage cavities, after the eccentric tube is ring-cut, the eccentric tube falls on the discharging frame, and the cut eccentric tube falls into the storage cavity in the storage box to complete automatic discharge and arrangement of the eccentric tube, and when one storage cavity on the storage box is full, the storage box is moved to enable the discharging frame to automatically collect and store the eccentric tube in other storage cavities.

[0029] Optionally, the pushing assembly comprises a second pushing rod and a third pushing rod fixed on the laser cutting table, an electromagnet fixed on the second pushing rod, a first sensor fixed on the laser cutting table, and a second sensor fixed on the connecting frame, the third pushing rod is fixedly connected with the connecting frame, the connecting frame is movably attached to the first sensor, the second sensor is movably attached to the eccentric tube, and the electromagnet is magnetically connected with the eccentric tube.

[0030] By adopting the technical scheme, the pushing assembly can push the eccentric tube to complete continuous cutting of the eccentric tube, when the laser cutting head completes ring-cutting of a section of the eccentric tube, the rotating member first loses clamping and limiting of the eccentric tube, then the electromagnet adsorbs and releases the eccentric tube, and the second pushing rod and the electromagnet can translate and push the eccentric tube to make the eccentric tube abut against the second sensor, and the movable frame abuts against the limiting block again, which indicates that the eccentric tube has been transported to the specified position, and the transportation of the eccentric tube is stopped.

[0031] Optionally, the supporting frame is fixedly connected with a fourth pushing rod, the limiting frame is fixedly connected with a video sensor, and the output end of the fourth pushing rod is fixedly connected with the supporting plate.

[0032] By adopting the technical scheme, the video sensor can monitor and feed back the process of cutting the eccentric pipe by the laser cutting head in real time, when the laser cutting head needs to be maintained or cleaned, the movable frame is separated from the control block through the third push rod, then the laser cutting head, the speed control plate and the control block are sequentially driven to move through the fourth push rod, the heated block is separated from the eccentric pipe, the distance between the laser cutting head and the eccentric pipe is adjusted, and the laser cutting head can be maintained or cleaned.

[0033] A kind of laser numerical control automatic unloading cutting process for pipe, comprising the following steps:

[0034] S1. Pushing assembly can rotate, push and clamp eccentric pipe, transport eccentric pipe to specified cutting position, cooperate with laser cutting head can laser cutting eccentric pipe;

[0035] S2. When eccentric pipe rotates, control amount piece can detect the thickness of current position cutting of eccentric pipe, cooperate with control amount piece can adjust the size of gas gap, can output optimal oxygen amount to laser cutting head according to the thickness of specified position cutting of eccentric pipe, and cut eccentric pipe;

[0036] S3. Speed control piece and supply piece can detect the temperature of current position cutting of eccentric pipe, while can adjust the size of fluid gap, can control oxygen delivery speed according to the temperature of specified position cutting of eccentric pipe by laser cutting head;

[0037] S4. Dust suction assembly can collect the debris and dust generated when cutting eccentric pipe, unloading assembly can automatically unload and arrange the eccentric pipe after ring cutting, cooperate with pushing assembly can continuously transport and ring cut eccentric pipe to complete continuous cutting of eccentric pipe.

[0038] By adopting the technical scheme, the oxygen delivery amount and delivery speed can be controlled according to the thickness of eccentric pipe and the temperature during laser cutting, when the laser cutting head cuts the thinner position of eccentric pipe, the excessive oxygen spraying amount is avoided to intensify the oxidation reaction during cutting, and the oxygen waste is avoided as much as possible, when the temperature of eccentric pipe during cutting by laser cutting head is too high, the molten slag and heat generated in the cutting surface cannot be blown away in time to cause cracks or gaps.

[0039] In summary, the present application includes at least one of the following beneficial technical effects:

[0040] 1. Pushing assembly cooperates with rotating member to push eccentric pipe, can transport eccentric pipe to specified cutting position, and can clamp eccentric pipe to avoid eccentric pipe from shaking during cutting, at the same time, rotating member can rotate and adjust eccentric pipe, cooperate with laser cutting head to cut eccentric pipe completely, and cooperate with oxygen input to enhance the speed of laser cutting of eccentric pipe, for thicker eccentric pipe, it can also easily realize penetration, expand the application range of laser cutting.

[0041] 2. The control device can detect the thickness of the specified position of the eccentric tube. When the eccentric tube is cut at a thinner position, the gas gap will be smaller, and the oxygen output will be smaller, avoiding the oxidation reaction of oxygen on the cutting section when the laser cutting head cuts the thinner position of the eccentric tube, making the cutting surface more rough. At the same time, it can also avoid the waste of oxygen, and avoid the insufficient supply of oxygen when the laser cutting head cuts the thicker position of the eccentric tube, affecting the cutting speed of the laser cutting head on the eccentric tube. Through the output of the laser cutting head, the optimal oxygen output can be output to the laser cutting head according to the thickness of the specified position of the eccentric tube, and the eccentric tube is cut;

[0042] 3. The speed control device can detect the temperature of the specified position of the eccentric tube. According to the temperature of the specified position of the eccentric tube, the oxygen delivery speed can be controlled to avoid the slow oxygen delivery speed when the temperature of the eccentric tube is too high, which can cause the molten slag and heat generated in the cutting surface of the eccentric tube to be blown away in time, causing cracks or gaps in the cutting surface. It can ensure the quality of the cutting surface of the eccentric tube, and also avoid the incomplete cutting of the eccentric tube caused by insufficient oxygen supply, leaving uncut parts. According to the thickness of the eccentric tube and the temperature of the laser cutting, the oxygen delivery amount and speed can be controlled, and the pushing assembly can complete the automatic unloading and arrangement of the eccentric tube. With the cooperation of the rotating member, the oxygen delivery amount and speed can be precisely controlled, and the oxygen supply amount can be controlled according to the thickness and temperature of the specified position of the eccentric tube. On the one hand, it can reduce smoke and harmful gases, and on the other hand, it can ensure the oxygen supply amount. BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application;

[0044] Figure 2 The appearance diagram of the laser cutting table connection structure in the embodiment of the present application;

[0045] Figure 3 The appearance diagram of the support plate connection structure in the embodiment of the present application;

[0046] Figure 4 The appearance diagram of the dust collection box connection structure in the embodiment of the present application;

[0047] Figure 5 The appearance diagram of the laser cutting head connection structure in the embodiment of the present application;

[0048] Figure 6 The cross-sectional view of the nozzle connection structure in the embodiment of the present application;

[0049] Figure 7 The embodiment of the present application Figure 3Enlarged view at A.

[0050] Fig. 1 is a laser cutting table; 2 is an eccentric tube; 3 is an oxygen tank; 4 is an oxygen hose; 5 is a control valve; 6 is a Venturi tube; 7 is a connecting hose; 8 is a laser cutting head; 9 is a support frame; 10 is a fourth push rod; 11 is a support plate; 12 is a mounting frame; 13 is an adjusting block; 14 is a speed control plate; 15 is a heated block; 16 is a temperature sensor; 17 is a third push rod; 18 is a connecting frame; 19 is a ring spring; 20 is a detection frame; 21 is a sliding rod; 22 is a movable frame; 23 is a limiting frame; 24 is a compression spring; 25 is a quantity control block; 26 is a video sensor; 27 is a second inductor; 28 is a first inductor; 29 is a dust collection box; 30 is a collection cover; 31 is a collection hose; 32 is a wind frame; 33 is a reverse blade; 34 is an intelligent sensor; 35 is a servo motor; 36 is a transmission gear; 37 is a fixed gear; 38 is a first push rod; 39 is a clamping plate; 40 is a second push rod; 41 is an electromagnet; 42 is a storage box; 43 is a blanking frame. DETAILED DESCRIPTION

[0051] The following will be described in detail below Figures 1-7 The present application is further described in detail.

[0052] Example 1:

[0053] The embodiment of the present application discloses a kind of laser numerical control automatic blanking cutting system for pipe material, refer to Figure 1 And Figure 2 , including laser cutting table 1, laser cutting head 8 for being set on laser cutting table 1, support plate 11 for being fixed on laser cutting head 8, oxygen hose 4 for being communicated on laser cutting head 8 and adjusting assembly, pushing assembly, dust collection assembly and blanking assembly for being used to rotate, push, dust collection and blanking of eccentric tube 2;Oxygen hose 4 is provided with quantity control assembly and speed control assembly for controlling the output of oxygen and gas speed;Quantity control assembly includes quantity control block 25 movably arranged on oxygen hose 4, detection frame 20 for detecting the thickness of eccentric tube 2 and quantity control piece for adjusting quantity control block 25, and gas gap is provided between the inner side of oxygen hose 4 and the top of quantity control block 25;Speed control assembly includes Venturi tube 6 communicated on oxygen hose 4, speed control plate 14 movably arranged on Venturi tube 6, speed control piece for pushing speed control plate 14 and supply piece for supplying oxygen, and fluid gap is provided between the inner side of Venturi tube 6 and the right side of speed control plate 14;Adjusting assembly includes fixed gear 37 movably arranged on laser cutting table 1 and rotating piece for rotating adjusting fixed gear 37.

[0054] The quantity control member comprises a connecting frame 18 movably arranged on the laser cutting table 1, an annular spring 19 fixed on a detection frame 20, a sliding rod 21 fixed on the detection frame 20, a movable frame 22 fixed on the sliding rod 21, a limiting frame 23 fixed on the support plate 11, and a compression spring 24 fixed on the limiting frame 23, wherein the compression spring 24 is fixedly connected with a quantity control block 25, the quantity control block 25 is movably attached to the movable frame 22, the detection frame 20 is movably attached to the inner wall of the eccentric tube 2, and the annular spring 19 is fixedly connected with the connecting frame 18.

[0055] The speed control member comprises a mounting frame 12 fixed on the support plate 11, a heated block 15 fixed on the mounting frame 12, and an adjusting block 13 fixed on the heated block 15, wherein the adjusting block 13 expands at high temperature and shrinks at low temperature, the adjusting block 13 can drive the speed control plate 14 to translate to control the moving range of the speed control plate 14, the speed control plate 14 is fixedly connected with the adjusting block 13, the adjusting block 13 is located on the inner side of the mounting frame 12, the mounting frame 12 is fixedly connected with the Venturi tube 6, the heated block 15 and the mounting frame 12 are movably attached to the speed control plate 14, the eccentric tube 2 is usually made of aluminum alloy when used for conveying corrosive medium, because aluminum alloy has good corrosion resistance and strength, the temperature of the aluminum alloy eccentric tube 2 during cutting is generally about 300°C to 600°C, therefore, the material of the adjusting block 13 is preferably high-temperature plastic, and other materials such as high-temperature elastomer, high-temperature composite material, high-temperature plastic polymer, ceramic matrix composite material, natural rubber, styrene-butadiene rubber, nitrile rubber, and ethylene-propylene rubber can also be selected, as long as the material can withstand 300°C without changing and can expand and shrink at 300°C to 600°C, the selected material has excellent high-temperature performance, mechanical strength, fatigue resistance, and corrosion resistance, can ensure that the adjusting block 13 can be used for a long time, and can ensure the service life of the adjusting block 13, the size of the temperature expansion of the adjusting block 13 can control the oxygen conveying speed, the control effect of the oxygen conveying speed can be ensured, the temperature sensor 16 is arranged on the mounting frame 12, and the video sensor 26 is arranged on the limiting frame 23, so that the video sensor 26 and the temperature sensor 16 are not damaged by high temperature, and the video sensor 26 can be slightly away from the laser cutting head 8.

[0056] The rotating member comprises a first push rod 38 rotatably arranged on the laser cutting table 1, a clamping plate 39 and a transmission gear 36, and a servo motor 35 fixed on the laser cutting table 1, wherein a fixed through hole is arranged on the fixed gear 37, the eccentric tube 2 is located on the inner side of the fixed through hole, the fixed gear 37 and the clamping plate 39 are movably connected with the eccentric tube 2, the clamping plate 39 and the fixed gear 37 are fixedly connected with the first push rod 38, the fixed gear 37 is engaged with the transmission gear 36, and the transmission gear 36 is connected with the output end of the servo motor 35.

[0057] The supply part comprises an oxygen tank 3 fixed on the laser cutting table 1, a connecting hose 7 communicated with the oxygen tank 3, and a control valve 5 fixed on the connecting hose 7, the connecting hose 7 is communicated with a Venturi tube 6, the Venturi tube 6 is provided with a connecting square hole, a speed control plate 14 is slidably connected with the connecting square hole, so that the oxygen in the Venturi tube 6 is prevented from being discharged from the connecting square hole while the speed control plate 14 is sliding, the speed control plate 14 is T-shaped, the oxygen tank 3 is communicated with a pressure gauge, the connecting hose 7 can be opened and discharged through the control valve 5, when the oxygen in the oxygen tank 3 is used up, the control valve 5 and the connecting hose 7 can be disassembled, so that the oxygen in the oxygen tank 3 can be added, and the remaining amount of the oxygen in the oxygen tank 3 can be monitored through the pressure gauge.

[0058] The dust collection assembly comprises a support frame 9 and a dust collection box 29 fixed on the laser cutting table 1, a collection cover 30 fixed on the support frame 9, a reverse blade 33 rotatably arranged in the collection cover 30, a wind power frame 32 rotatably arranged in the oxygen hose 4, and a collection hose 31 communicated with the collection cover 30, the collection hose 31 is fixedly connected with a support plate 11, the reverse blade 33 is coaxially fixed with the wind power frame 32, the collection cover 30 is communicated with the dust collection box 29, the inlet of the collection hose 31 is located beside the laser cutting head 8, the dust collection box 29 is movably connected with a connecting door, and the dust collection box 29 is provided with a breathable hole, through which the reverse blade 33 can be driven to suck dust when the dust collection box 29 has a breathable effect, and the inside of the dust collection box 29 can be cleaned by opening the connecting door.

[0059] The blanking assembly comprises a blanking frame 43 fixed on the laser cutting table 1, a storage box 42 arranged on the blanking frame 43, two partition plates fixed in the storage box 42, and a movable door movably arranged on the storage box 42, and the storage box 42 is provided with three feeding holes.

[0060] The pushing assembly comprises a second push rod 40 and a third push rod 17 fixed on the laser cutting table 1, an electromagnet 41 fixed on the second push rod 40, a first inductor 28 fixed on the laser cutting table 1, and a second inductor 27 fixed on a connecting frame 18, the third push rod 17 is fixedly connected with the connecting frame 18, the connecting frame 18 is movably attached with the first inductor 28, the second inductor 27 is movably attached with the eccentric tube 2, the electromagnet 41 is magnetically connected with the eccentric tube 2, the connecting frame 18 is provided with a sliding hole, a sliding rod 21 is slidably connected with the sliding hole, the top of the detection frame 20 is a circular arc surface, the connecting frame 18 is provided with a connecting hole, and the detection frame 20 is slidably connected with the connecting hole.

[0061] The fourth push rod 10 is fixedly connected to the support frame 9, the temperature sensor 16 is fixedly connected to the mounting frame 12, the video sensor 26 is fixedly connected to the limiting frame 23, the intelligent sensor 34 is fixedly connected to the laser cutting table 1, the output end of the fourth push rod 10 is fixedly connected to the support plate 11, the temperature sensor 16 is movably attached to the adjusting block 13, the laser cutting head 8, the temperature sensor 16, the video sensor 26, the servo motor 35, the first inductor 28, the second inductor 27, the first push rod 38, the second push rod 40, the third push rod 17 and the fourth push rod 10 are electrically connected to the intelligent sensor 34, and the laser cutting head 8, the temperature sensor 16, the video sensor 26, the servo motor 35, the first inductor 28, the second inductor 27, the first push rod 38, the second push rod 40, the third push rod 17 and the fourth push rod 10 can be started and stopped at regular intervals through the intelligent controller, and the video sensor 26 is electrically connected to the fourth push rod 10.

[0062] The implementation principle of the laser numerical control automatic unloading cutting system for pipe material provided in the embodiment of the application is as follows:

[0063] (1) The eccentric tube 2 is inserted into the fixed gear 37, the eccentric tube 2 is adsorbed and released by the electromagnet 41, and the electromagnet 41 is pushed to translate by the second push rod 40, so that the eccentric tube 2 can be pushed, when the eccentric tube 2 is attached to the second inductor 27, it indicates that the eccentric tube 2 has been transported to the specified position, the transportation of the eccentric tube 2 is stopped, the first push rod 38 can drive the clamping plate 39 to move, and the eccentric tube 2 is clamped and fixed by cooperating with the fixed gear 37, so as to avoid the phenomenon that the eccentric tube 2 shakes during cutting, so as to ensure the effect of laser cutting of the eccentric tube 2;

[0064] (2) When the eccentric tube 2 is attached to the second inductor 27, the eccentric tube 2 will push the circular surface of the detection frame 20, and the ring-shaped spring 19 will be in a compressed state, and then the detection frame 20, the sliding rod 21 and the movable frame 22 will be sequentially driven to move downward, so that the inner wall of the eccentric tube 2 is attached to the top of the detection frame 20, the eccentric tube 2 can be laser cut by the laser cutting head 8, and the transmission gear 36, the fixed gear 37, the first push rod 38, the clamping plate 39 and the eccentric tube 2 can be sequentially rotated by the servo motor 35, and the eccentric tube 2 can be completely cut by cooperating with the laser cutting head 8 when the eccentric tube 2 rotates;

[0065] (3) When the laser cutting head 8 cuts the eccentric tube 2, the adjusting control valve 5 is opened to connect the soft pipe 7, the oxygen in the oxygen tank 3 will be sequentially input into the laser cutting head 8 through the connecting soft pipe 7, the Venturi tube 6 and the oxygen soft pipe 4, and the laser cutting head 8 can strengthen the speed of laser cutting of the eccentric tube 2 by cooperating with the input of oxygen, so that the laser cutting head 8 can also easily realize penetration for the thicker eccentric tube 2, expand the application range of laser cutting, and ensure that the laser cutting head 8 continuously supplies oxygen;

[0066] (4) When the eccentric tube 2 rotates, the thickness shape of the eccentric tube 2 can sequentially drive the detection frame 20, the sliding rod 21 and the movable frame 22 to move to make the annular spring 19 bear different rebound compression, so as to detect the thickness of the eccentric tube 2. When the movable frame 22 moves, the control block 25 is driven to move to make the compression spring 24 be in a compressed state or a rebound state, so as to adjust the gas gap size between the inside of the oxygen hose 4 and the top of the control block 25. When the detection frame 20 moves to the position of the thinner eccentric tube 2, the range of the movable frame 22 driven by the control block 25 is also smaller, and the gas gap is also smaller, so the oxygen output is also smaller. Therefore, when the laser cutting head 8 cuts the position of the thinner eccentric tube 2, the oxidation reaction of oxygen to the cutting section is avoided to be intensified, so that the cutting surface becomes rougher. At the same time, oxygen waste can be avoided as much as possible, and when the laser cutting head 8 cuts the position of the thicker eccentric tube 2, the oxygen supply is avoided to be insufficient, so that the cutting speed of the laser cutting head 8 to the eccentric tube 2 is affected. Therefore, the output of the laser cutting head 8 to the oxygen can be controlled according to the thickness of the specified position of the eccentric tube 2 cut by the laser cutting head 8. When the laser cutting head 8 cuts the position of the thinner eccentric tube 2, the output of the oxygen is reduced, and when the laser cutting head 8 cuts the position of the thicker eccentric tube 2, the output of the oxygen is increased. The best oxygen output to the laser cutting head 8 can be output according to the thickness of the specified position of the eccentric tube 2 cut, so as to cut the eccentric tube 2;

[0067] (5) When the laser cutting head 8 cuts the eccentric tube 2, the eccentric tube 2 will be heated, and the heat will be conducted to the heated block 15 and then to the adjusting block 13. The adjusting block 13 can detect the temperature of the eccentric tube 2 when cutting. When the temperature of the eccentric tube 2 is higher when cutting, the adjusting block 13 will expand due to high temperature. Therefore, the expansion and contraction of the adjusting block 13 will change due to the temperature of the eccentric tube 2 when cutting. The expansion and contraction of the adjusting block 13 will drive the speed control plate 14 to move, so as to adjust the fluid gap size between the inside of the Venturi tube 6 and the right side of the speed control plate 14. When the temperature of the adjusting block 13 is higher when heated, the expansion is also larger, the range of the speed control plate 14 is also larger, and the fluid gap is smaller. The speed of the oxygen passing through the fluid gap is faster. The delivery speed of the oxygen can be controlled according to the temperature of the specified position of the eccentric tube 2 cut by the laser cutting head 8;

[0068] (6) the higher the temperature of the laser cutting head 8 cutting the specified position of the eccentric tube 2, the faster the oxygen flow rate, the lower the temperature of the laser cutting head 8 cutting the specified position of the eccentric tube 2, the slower the oxygen flow rate, the oxygen supply speed of the oxygen hose 4 to the Venturi tube 6 can be accurately controlled according to the temperature of the specified position of the eccentric tube 2, the oxygen supply speed of the oxygen hose 4 to the laser cutting head 8 can be controlled, to avoid the situation that when the temperature of the eccentric tube 2 is too high, the speed of oxygen delivery is too slow, causing the molten slag and heat generated on the cutting surface of the eccentric tube 2 to be blown away in time, resulting in cracks or gaps on the cutting surface, and the oxygen output speed can be controlled according to the temperature of the cutting surface of the eccentric tube 2 to ensure the quality of the cutting surface of the eccentric tube 2, and also to avoid the situation that insufficient oxygen supply speed causes incomplete cutting of the eccentric tube 2, leaving uncut parts;

[0069] (7) when the oxygen flows in the oxygen hose 4, the flow rate of the oxygen can drive the wind rack 32 to rotate, and in turn drive the reverse blades 33 to rotate to generate suction, which can suck the debris and dust generated during the cutting of the eccentric tube 2 into the dust collection box 29 through the collection hose 31 and the collection cover 30, achieving the purpose of dust collection during the cutting of the eccentric tube 2, to ensure the hygiene during the cutting of the eccentric tube 2, and at the same time, the faster the flow rate of the oxygen in the oxygen hose 4, the stronger the suction generated by the rotation of the reverse blades 33 driven by the wind rack 32, and high-temperature cutting will generate more debris, smoke and harmful gases, so increasing the suction can more effectively remove the debris and ensure the safety and cleanliness of the working environment, and the oxygen supply amount and speed can be accurately controlled, which can reduce smoke and harmful gases, ensure the oxygen supply amount, accurately control the oxygen supply, and improve the cutting efficiency of the eccentric tube 2;

[0070] (8) the two partition plates can divide the storage box 42 into three storage cavities to ensure the effect and quantity of the arrangement of the eccentric tube 2, after the laser cutting head 8 completes the ring cutting of the eccentric tube 2, the eccentric tube 2 will fall onto the discharging rack 43 and then flow into the storage box 42, and can roll into the storage cavity through the feeding hole to complete the automatic discharging and arrangement of the eccentric tube 2, when one storage cavity on the storage box 42 is full, the discharging rack 43 can be aligned with other feeding holes of the storage box 42 by moving the storage box 42, so that the automatic collection and storage of the eccentric tube 2 in other storage cavities can be continued, which can ensure the quantity of the collected eccentric tube 2 and the effect of the automatic discharging and storage of the eccentric tube 2, and the eccentric tube 2 stored in the storage box 42 can be taken out by opening the movable door;

[0071] (9) After the laser cutting head 8 cuts a section of the eccentric tube 2, the video sensor 26 will transmit a signal to the first sensor 28, the second sensor 27, the electromagnet 41, the second push rod 40 and the third push rod 17. The third push rod 17 can drive the connecting frame 18, the movable frame 22, the sliding rod 21 and the speed control plate 14 to move left in turn, so that the connecting frame 18 is separated from the first sensor 28, and the movable frame 22 is separated from the quantity control block 25. The connecting frame 18 and the speed control plate 14 can be removed from the eccentric tube 2 to avoid interference of the connecting frame 18 and the speed control plate 14 with the eccentric tube 2 during cutting. After the eccentric tube 2 is finished cutting, the third push rod 17 can drive the connecting frame 18, the movable frame 22, the sliding rod 21 and the speed control plate 14 to move right in turn. When the first sensor 28 recombines with the connecting frame 18, it means that the connecting frame 18 has moved to the designated position. The first sensor 28 will transmit a signal to the third push rod 17 to stop driving, so that the connecting frame 18, the movable frame 22 and the speed control plate 14 are kept in the current state. Then the electromagnet 41 re-adsorbs the eccentric tube 2, and the first push rod 38 drives the clamping plate 39 to move, so that the clamping plate 39 loses the limit of the eccentric tube 2. Finally, the electromagnet 41 adsorbs and releases the eccentric tube 2, and cooperates with the second push rod 40 and the electromagnet 41 to push and translate the eccentric tube 2, so that the eccentric tube 2 combines with the second sensor 27, the movable frame 22 combines with the quantity control block 25, and the inner wall of the eccentric tube 2 combines with the top of the movable frame 22. Then the first push rod 38 and the clamping plate 39 re-clamp and fix the eccentric tube 2, so as to cut the next section of the eccentric tube 2. Through this method, the eccentric tube 2 can be continuously transported and circularly cut and finally automatically discharged and stored, so as to ensure the continuous cutting effect of the eccentric tube 2;

[0072] (10) The video sensor 26 can monitor and feedback the cutting process of the laser cutting head 8 on the eccentric tube 2 in real time, so as to know the cutting time and cutting quality of the eccentric tube 2 at any time. The temperature sensor 16 can detect the temperature of the adjusting block 13, so as to detect the temperature of the eccentric tube 2 at the designated position at any time, so as to adjust the cutting parameters, cutting speed and power of the laser cutting head 8, and ensure the safety of the laser cutting of the eccentric tube 2;

[0073] (11) When the laser cutting head 8 needs to be repaired or cleaned, the third push rod 17 drives the connecting frame 18 and the movable frame 22 to move in turn, so that the movable frame 22 is separated from the limit block 25, the detection frame 20 is separated from the eccentric pipe 2, and then the fourth push rod 10 can drive the support plate 11, the laser cutting head 8, the limiting frame 23, the mounting frame 12 and the Venturi tube 6 to move in turn, so that the heated block 15 is separated from the eccentric pipe 2, the distance between the laser cutting head 8 and the eccentric pipe 2 is adjusted, the laser cutting head 8 can be repaired or cleaned, and after the laser cutting head 8 is cleaned, the fourth push rod 10 drives the support plate 11, the laser cutting head 8, the limiting frame 23, the mounting frame 12 and the Venturi tube 6 to move again, so that the heated block 15 is attached to the eccentric pipe 2, and when the heated block 15 is attached to the eccentric pipe 2, the video sensor 26 transmits a signal to the fourth push rod 10 to stop driving, and the laser cutting head 8 can be adjusted to a specified cutting position.

[0074] Embodiment two:

[0075] The embodiment of the application also discloses a laser numerical control automatic blanking and cutting process for pipe materials, which is based on the laser numerical control automatic blanking and cutting system for pipe materials in the embodiment one and comprises the following steps.

[0076] S1. The push assembly can rotate, push and clamp the eccentric pipe 2, transport the eccentric pipe 2 to a specified cutting position, and cooperate with the laser cutting head 8 to cut the eccentric pipe 2 by laser;

[0077] S2. When the eccentric pipe 2 rotates, the limit piece can detect the thickness of the eccentric pipe 2 at the current position, cooperate with the limit piece to adjust the size of the gas gap, and output the optimal oxygen amount to the laser cutting head 8 according to the thickness of the eccentric pipe 2 at the specified position to cut the eccentric pipe 2;

[0078] S3. The speed control piece and the supply piece can detect the temperature of the eccentric pipe 2 at the current position, adjust the size of the fluid gap at the same time, and control the oxygen delivery speed according to the temperature of the eccentric pipe 2 at the specified position cut by the laser cutting head 8;

[0079] S4. The dust collection assembly can collect the debris and dust generated when the eccentric pipe 2 is cut, the blanking assembly can automatically blank and arrange the eccentric pipe 2 after ring cutting, and the push assembly can continuously transport and ring cut the eccentric pipe 2 to complete the continuous cutting of the eccentric pipe 2.

[0080] The above are preferred embodiments of the application, which do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. A laser CNC automatic blanking and cutting system for pipes, characterized in that: It includes a laser cutting table (1), a laser cutting head (8) set on the laser cutting table (1), a support plate (11) fixed on the laser cutting head (8), an oxygen hose (4) connected to the laser cutting head (8), and an adjustment component, a pushing component, a dust suction component and a material feeding component for rotating, pushing, dust suction and unloading the eccentric tube (2); The oxygen hose (4) is provided with a quantity control component and a speed control component for controlling the oxygen output and delivery speed; The quantity control assembly includes a quantity control block (25) movably mounted on the oxygen hose (4), a detection frame (20) for detecting the thickness of the eccentric tube (2), and a quantity control element for adjusting the quantity control block (25). A gas gap is provided between the inner side of the oxygen hose (4) and the top of the quantity control block (25). The speed control assembly includes a venturi tube (6) connected to the oxygen hose (4), a speed control plate (14) movably disposed on the venturi tube (6), a speed control component for pushing the speed control plate (14), and a supply component for supplying oxygen. A fluid gap is provided between the inner side of the venturi tube (6) and the right side of the speed control plate (14). The adjustment assembly includes a fixed gear (37) movably mounted on the laser cutting table (1) and a rotating component for adjusting the rotation of the fixed gear (37); The control components include a connecting frame (18) movably mounted on the laser cutting table (1), a ring spring (19) fixed on the detection frame (20), a sliding rod (21) fixed on the detection frame (20), a movable frame (22) fixed on the sliding rod (21), a limiting frame (23) fixed on the support plate (11), and a compression spring (24) fixed on the limiting frame (23). The compression spring (24) is fixedly connected to the control block (25), the control block (25) is movably fitted to the movable frame (22), the detection frame (20) is movably fitted to the inner wall of the eccentric tube (2), and the ring spring (19) is fixedly connected to the connecting frame (18). The speed control component includes a mounting bracket (12) fixed on a support plate (11), a heating block (15) fixed on the mounting bracket (12), and an adjusting block (13) fixed on the heating block (15). The adjusting block (13) expands at high temperatures and contracts at low temperatures, which allows the adjusting block (13) to drive the speed control plate (14) to move due to temperature changes, thereby controlling the range of movement of the speed control plate (14). The speed control plate (14) is fixedly connected to the adjusting block (13), and the mounting bracket (12) is fixedly connected to the venturi tube (6). A temperature sensor (16) is fixedly connected to the mounting bracket (12).

2. The laser CNC automatic blanking and cutting system for pipes according to claim 1, characterized in that: The rotating component includes a first push rod (38) rotatably mounted on the laser cutting table (1), a clamping plate (39) and a transmission gear (36), and a servo motor (35) fixed on the laser cutting table (1). The fixed gear (37) and the clamping plate (39) are movably connected to the eccentric tube (2). The clamping plate (39) and the fixed gear (37) are fixedly connected to the first push rod (38). The fixed gear (37) meshes with the transmission gear (36). The transmission gear (36) is connected to the output end of the servo motor (35).

3. The laser CNC automatic blanking and cutting system for pipes according to claim 1, characterized in that: The supply components include an oxygen cylinder (3) fixed on a laser cutting table (1), a connecting hose (7) connected to the oxygen cylinder (3), and a control valve (5) fixed on the connecting hose (7), the connecting hose (7) being connected to a venturi tube (6).

4. The laser CNC automatic blanking and cutting system for pipes according to claim 1, characterized in that: The dust collection assembly includes a support frame (9) and a dust collection box (29) fixed on the laser cutting table (1), a collection cover (30) fixed on the support frame (9), a reverse blade (33) rotatably disposed in the collection cover (30), a wind turbine (32) rotatably disposed in the oxygen hose (4), and a collection hose (31) connected to the collection cover (30). The collection hose (31) is fixedly connected to the support plate (11), the reverse blade (33) is coaxially fixed to the wind turbine (32), and the collection cover (30) is connected to the dust collection box (29).

5. The laser CNC automatic blanking and cutting system for pipes according to claim 1, characterized in that: The unloading assembly includes an unloading rack (43) fixed on the laser cutting table (1), a storage box (42) set on the unloading rack (43), and two partition plates fixed inside the storage box (42).

6. The laser CNC automatic blanking and cutting system for pipes according to claim 1, characterized in that: The pushing assembly includes a second push rod (40) and a third push rod (17) fixed on the laser cutting table (1), an electromagnet (41) fixed on the second push rod (40), a first sensor (28) fixed on the laser cutting table (1), and a second sensor (27) fixed on the connecting frame (18). The third push rod (17) is fixedly connected to the connecting frame (18), the connecting frame (18) is movably attached to the first sensor (28), the second sensor (27) is movably attached to the eccentric tube (2), and the electromagnet (41) is magnetically connected to the eccentric tube (2).

7. The laser CNC automatic blanking and cutting system for pipes according to claim 4, characterized in that: A fourth push rod (10) is fixedly connected to the support frame (9), and a video sensor (26) is fixedly connected to the limiting frame (23). The output end of the fourth push rod (10) is fixedly connected to the support plate (11).

8. A laser CNC automatic blanking and cutting process for pipes, based on a laser CNC automatic blanking and cutting system for pipes as described in any one of claims 1-7, characterized in that, Includes the following steps: S1. The adjustment component and the push component rotate, push and clamp the eccentric tube (2) to transport the eccentric tube (2) to the designated cutting position and cooperate with the laser cutting head (8) to laser cut the eccentric tube (2); S2. When the eccentric tube (2) is rotating, the control element detects the thickness of the eccentric tube (2) at the current position and adjusts the size of the gas gap in conjunction with the control element. Based on the thickness of the eccentric tube (2) at the specified position, the optimal amount of oxygen is output to the laser cutting head (8) to cut the eccentric tube (2). S3. Temperature sensor (16) detects the cutting temperature of the eccentric tube (2) at the current position. At the same time, the speed control component and the supply component adjust the size of the fluid gap. The oxygen delivery speed is controlled according to the temperature of the eccentric tube (2) when the laser cutting head (8) cuts at the specified position. S4. The dust collection component collects the debris and dust generated during the cutting of the eccentric tube (2), and the feeding component automatically feeds and organizes the eccentric tube (2) after the ring cutting is completed. The pushing component continuously conveys and ring-cuts the eccentric tube (2) to complete the continuous cutting of the eccentric tube (2).

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