Metal tube laser processing device and laser processing method thereof

Abstract

The invention relates to the technical field of laser, and discloses a metal pipe laser machining device and a laser machining method.The metal pipe laser machining device comprises a laser cutting machine, and a plurality of metal pipes located in a metal pipe containing groove can be automatically installed one by one through an automatic metal pipe feeding mechanism; the metal pipes which are cut off can be automatically clamped through the impact force reducing type metal pipe collecting mechanism, the metal pipes are placed in a metal pipe storage box one by one, the automation degree of equipment is improved, and meanwhile the situation that when the thin metal pipes are cut, the thin metal pipes deform due to impact can be prevented; the problems that when a laser cutting machine is used for cutting a thin metal pipe, the cut metal pipe possibly deforms due to collision with external objects, and the metal pipe laser machining device needs to manually install metal pipe raw materials and is tedious in operation are solved.

Description

Technical Field

[0001] The invention relates to the field of lasers, and in particular to a metal tube laser processing device and a laser processing method thereof. Background Art

[0002] Metal pipes are an important engineering material, widely used in many fields such as construction, automobiles, aerospace, petrochemicals, etc. They can be classified according to material, manufacturing process and application field. Metal pipes are mainly divided into iron pipes, steel pipes, non-ferrous metal pipes, etc. Among them, steel pipes are the most common type, including carbon steel pipes, low alloy steel pipes, alloy steel pipes and stainless steel pipes. Non-ferrous metal pipes include copper and copper alloy pipes, lead pipes, aluminum pipes and titanium pipes, etc.

[0003] Metal tube laser processing device is a device that uses laser technology to cut, punch, engrave and process metal tubes. This device is widely used in many fields such as automobile manufacturing, oil extraction, machinery manufacturing, metal tube processing, etc.

[0004] However, the existing laser tube cutting machines all use slopes to guide the cut metal tubes into the corresponding collection buckets. When the laser tube cutting machine is used to cut metal tubes with thinner inner walls, the cut metal tubes will collide with the metal tubes that have fallen into the collection bucket, and the thinner metal tubes may be deformed due to the impact force. In addition, the metal tube laser processing device requires manual installation of the metal tube raw materials, the equipment has a low degree of automation and its operation is cumbersome. Therefore, it does not meet the existing needs. In this regard, we propose a metal tube laser processing device and a laser processing method thereof. Summary of the invention

[0005] The object of the present invention is to provide a metal tube laser processing device and a laser processing method thereof, so as to solve the problems proposed in the above background technology that the existing laser tube cutting machines all guide the cut metal tube to the inside of the corresponding collecting bucket through a slope. When the laser tube cutting machine is used to cut the metal tube with a thinner inner wall, the cut metal tube will collide with the metal tube that has fallen into the collecting bucket, and the thinner metal tube may be deformed due to the impact force. In addition, the metal tube laser processing device requires manual installation of the metal tube raw materials, the equipment has a low degree of automation and its operation is cumbersome.

[0006] To achieve the above-mentioned purpose, on the one hand, the present invention provides a metal tube laser processing device, including a laser cutting machine, wherein a metal tube automatic feeding mechanism is provided in front of the laser cutting machine, wherein the metal tube automatic feeding mechanism comprises a metal shell, a metal tube storage groove, a baffle plate, a dividing plate, a synchronization mechanism, an adjustment mechanism, a metal tube conveying cabinet, a metal tube automatic clamping head, an arc groove, a plurality of lifting metal tube guide wheels and a plurality of metal tubes, wherein the metal tube storage groove is located on the upper end surface of the metal shell, the lower end inner wall of the metal tube storage groove is an inclined rolling surface, and the plurality of metal tubes are all located inside the metal tube storage groove;

[0007] The surface of the baffle plate facing the metal tube is in contact with the lowest metal tube, and the baffle plate is slidably connected to the metal shell, the partition plate is located above the middle position between the first metal tube and the second metal tube from bottom to top, the bottom end of the partition plate is a conical surface, the adjustment mechanism can move the partition plate, and the synchronization mechanism can move the partition plate downward in the process of moving the baffle plate upward;

[0008] The arc groove is located in the middle of the upper end surface of the metal pipe conveying cabinet, and the position of the arc groove corresponds to the position of the inclined rolling surface. The plurality of lifting metal pipe guide wheels are installed in the arc groove, and the metal pipe is slidably installed on one side of the upper end surface of the metal pipe conveying cabinet.

[0009] An impact-reducing metal tube collecting mechanism is provided at the rear of the laser cutting machine, and the impact-reducing metal tube collecting mechanism includes a slide rail base, an inclined slide, a concave sliding frame, a metal tube storage box, a rotating motor, a rotating shaft, a circular metal shell, six pushing mechanisms and six electric clamping clamps. The inclined slide is slidably installed on the upper end surface of the slide rail base, the metal tube storage box is located below the front end of the inclined slide, the concave sliding frame is slidably installed on the outer surface of the inclined slide, the rotating motor is fixedly installed inside the concave sliding frame, the rotating shaft is connected to the output shaft of the rotating motor through a coupling, the circular metal shell is fixedly sleeved on the outer surface of the rotating shaft, the six pushing mechanisms are respectively fixedly installed on the six end corners inside the circular metal shell, and the six pushing mechanisms are respectively connected to the six circular metal shells.

[0010] Preferably, a metal tube claw disk is fixedly installed on one side inside the laser cutting machine, a laser cutting head is provided above the metal tube claw disk, and the metal tube automatic feeding mechanism, the metal tube claw disk, the laser cutting head and the impact-reducing metal tube collecting mechanism are all electrically connected to the laser cutting machine.

[0011] Preferably, the synchronization mechanism includes a discharging motor, the output shaft of the discharging motor is connected to a transmission shaft via a coupling, a positive threaded rod is provided on one side of the transmission shaft, and a negative threaded rod is provided on the other side of the transmission shaft, the positive threaded rod and the negative threaded rod are respectively connected in series with the transmission shaft via a synchronization chain, and the external threads of the positive threaded rod and the negative threaded rod are opposite.

[0012] Preferably, a first internally threaded sleeve is threadedly connected to the lower side of the outer surface of the main threaded rod, and a surface of the first internally threaded sleeve facing the baffle plate is fixed to the baffle plate.

[0013] Preferably, the upper side of the outer surface of the reverse-threaded rod is connected to a second internally threaded sleeve via a thread, and the surface of the second internally threaded sleeve facing the adjustment mechanism is fixed to the adjustment mechanism.

[0014] Preferably, the adjustment mechanism includes a horizontal plate, a motor protection housing is fixedly provided on one side of the lower end surface of the horizontal plate, an adjustment motor is fixedly installed inside the motor protection housing, the output shaft of the adjustment motor is connected to an adjustment threaded rod through a coupling, the adjustment threaded rod transversely penetrates the dividing plate, the adjustment threaded rod and the dividing plate are connected by a threaded structure, and a second guide rod is provided below the adjustment threaded rod, which is laterally movable and penetrates the dividing plate.

[0015] Preferably, a first guide rod is provided on one side of the adjusting threaded rod and is vertically movable and penetrates the motor protective housing, and the upper and lower ends of the first guide rod are fixed to the inside of the metal housing.

[0016] Preferably, the pushing mechanism comprises a pushing cylinder, and a piston rod of the pushing cylinder is fixed between a surface facing the electric clamping clamp and the electric clamping clamp;

[0017] Both sides of the pushing cylinder are provided with a metal guide rod which is movably inserted into the circular metal shell, and the surface of the metal guide rod facing the electric clamping clamp is fixed between the electric clamping clamp.

[0018] On the other hand, based on the above-mentioned metal tube laser processing device, the present invention also provides a laser processing method, which includes the following steps:

[0019] Step A: Before using the equipment, first move all the lifting metal tube guide wheels downwards and ensure that the upper end surface of the lifting metal tube guide wheels is lower than the lower inner wall of the arc groove. Then add the metal tube to the inside of the metal tube storage groove, and the metal tube located at the lower side of the metal tube storage groove will contact the inclined rolling surface. After the metal tube is added, the baffle plate is moved upwards through the synchronous mechanism. When the lower end surface of the baffle plate is higher than the upper end surface of the metal tube at the bottom, the metal tube at the bottom will roll down into the arc groove along the inclined rolling surface. When a metal tube enters the arc groove, it will move upwards. The lifting metal pipe guide wheel is moved upward to lift the metal pipe. When the axis of the metal pipe is aligned with the metal pipe clamping plate, the front end of the metal pipe is clamped by the metal pipe automatic clamping head. Then, the metal pipe fixed thereto is pushed backward by the metal pipe automatic clamping head. The rear end of the metal pipe pushed backward will enter the interior of the metal pipe clamping plate, and as the metal pipe automatic clamping head pushes, the metal pipe will pass through the metal pipe clamping plate. When the length of the metal pipe automatic clamping head passing through the metal pipe clamping plate reaches the specified length, it can be cut off by the laser cutting head.

[0020] Step B: When the baffle plate is moved upward by the synchronization mechanism, the partition plate will be pushed downward synchronously. As the partition plate descends, the bottom end of the partition plate will enter between the first metal tube and the second metal tube from bottom to top, thereby isolating the two. The partition plate can be moved parallel to each other by the adjustment mechanism. Before adding the metal tube, the distance between the partition plate and the baffle plate is adjusted to four thirds of the width of the metal tube by the adjustment mechanism.

[0021] Step C: If the inner wall of the metal tube to be cut is thicker and you are not afraid of collision, move the front end of the inclined slide to the bottom of the laser cutting head, and move the metal tube storage box to the side of the lower part of the front end of the inclined slide. At this time, the cut metal tube will fall onto the inclined slide and roll down along the inclined slide into the inside of the metal tube storage box;

[0022] Step D: If the inner wall of the cut metal tube is thin and is more likely to be deformed due to impact, move the front end of the inclined slide from under the laser cutting head, and move the metal tube storage box to under the laser cutting head, and then move the circular metal shell to under the metal tube passing through the metal tube claw plate through the concave sliding frame, and then push the electric clamp located in the middle position above the circular metal shell upward through the pushing mechanism, and clamp the metal tube passing through the metal tube claw plate through this electric clamp, and then when the laser cutting head is used to cut the lower metal tube, the circular metal shell is rotated by the rotating motor to move the electric clamp holding the cut metal tube away from the current position, and move another electric clamp to the middle above the circular metal shell. The metal tube is continued to be clamped in this way. When the electric clamp holding the metal tube leaves the middle position above the circular metal shell, the electric clamp pushed outward is retracted to its original position through the pushing mechanism. When the electric clamp holding the cut metal tube moves to the middle position below the circular metal shell, the electric clamp is pushed downward through the pushing mechanism to make it enter the interior of the metal tube storage box. When the electric clamp contacts the inner wall of the metal tube storage box or the metal tube inside the metal tube storage box, the metal tube clamped by the electric clamp is released. Then, under the action of gravity, the metal tube will fall into the interior of the metal tube storage box. When the electric clamp releases the metal tube, the electric clamp can be recovered again through the pushing mechanism.

[0023] The present invention uses an automatic metal tube feeding mechanism to enable the metal tubes located inside the metal tube storage groove to roll one by one into the inside of the arc groove, and insert the bottom ends of the metal tubes into the inside of the metal tube claw plate to install them. The metal tubes can be automatically installed through the above technical solution, thereby improving the degree of automation of the equipment and reducing the cumbersome operation of the equipment; the impact-reducing metal tube collecting mechanism can automatically clamp the cut metal tubes and place them one by one in the metal tube storage box. The above technical solution can reduce the impact force between the cut metal tubes and external objects, thereby preventing the thinner metal tubes from being deformed due to impact when cutting thinner metal tubes. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 For the present invention Figure 1 Schematic diagram of the internal structure at A in the middle;

[0026] Figure 3 A front view of the present invention as a whole;

[0027] Figure 4 It is a side view of the internal structure of the present invention;

[0028] Figure 5 For the present invention Figure 4 A magnified view of the structure at B in the middle;

[0029] Figure 6 For the present invention Figure 5 Enlarged view of the structure at C in the middle. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] See also Figures 1 to 6 The present invention provides a metal tube laser processing device, comprising a laser cutting machine 1, wherein a metal tube automatic feeding mechanism 2 is arranged in front of the laser cutting machine 1, wherein the metal tube automatic feeding mechanism 2 comprises a metal shell 201, a metal tube receiving groove 202, a baffle plate 205, a dividing plate 218, a synchronization mechanism, an adjustment mechanism, a metal tube conveying cabinet 222, a metal tube automatic clamping head 223, an arc groove 224, a plurality of lifting metal tube guide wheels 219 and a plurality of metal tubes 203, wherein the metal tube receiving groove 202 is located on the upper end surface of the metal shell 201, the lower end inner wall of the metal tube receiving groove 202 is an inclined rolling surface 204, and the plurality of metal tubes 203 are all located inside the metal tube receiving groove 202;

[0032] The surface of the baffle plate 205 facing the metal tube 203 is in contact with the lowest metal tube 203, and the baffle plate 205 is slidably connected to the metal shell 201. The partition plate 218 is located above the middle position between the first metal tube 203 and the second metal tube 203 from bottom to top. The bottom end of the partition plate 218 is a conical surface 221. The adjustment mechanism can move the partition plate 218, and the synchronization mechanism can move the partition plate 218 downward in the process of moving the baffle plate 205 upward.

[0033] The arc groove 224 is located in the middle position of the upper end surface of the metal pipe conveying cabinet 222, and the position of the arc groove 224 corresponds to the position of the inclined rolling surface 204. Multiple lifting metal pipe guide wheels 219 are installed in the arc groove 224, and the metal pipe 203 is slidably installed on one side of the upper end surface of the metal pipe conveying cabinet 222.

[0034] A metal tube clamping plate 3 is fixedly installed on one side inside the laser cutting machine 1, a laser cutting head 4 is arranged above the metal tube clamping plate 3, and the metal tube automatic feeding mechanism 2, the metal tube clamping plate 3, the laser cutting head 4 and the impact-reducing metal tube collecting mechanism are all electrically connected to the laser cutting machine 1; the metal tube automatic feeding mechanism 2, the metal tube clamping plate 3, the laser cutting head 4 and the impact-reducing metal tube collecting mechanism can be controlled by the laser cutting machine 1.

[0035] See also Figures 1 to 6 The synchronous mechanism of the present invention comprises a discharge motor 206, the output shaft of the discharge motor 206 is connected to a transmission shaft 207 through a coupling, a positive thread rod 208 is provided on one side of the transmission shaft 207, and a reverse thread rod 211 is provided on the other side of the transmission shaft 207, the positive thread rod 208 and the reverse thread rod 211 are respectively connected in series with the transmission shaft 207 through a synchronous chain 209, and the external threads of the positive thread rod 208 and the reverse thread rod 211 are opposite; before using the present device, first move all the lifting metal pipe guide wheels 219 downwards, and ensure that the lifting metal pipe guide wheels 219 are in a straight line. The upper end surface of the wheel 219 is lower than the lower inner wall of the arc groove 224. Then the metal tube 203 is added to the inside of the metal tube receiving groove 202. The metal tube 203 located on the lower side of the metal tube receiving groove 202 will contact the inclined rolling surface 204. When the metal tube 203 is added, the discharging motor 206 is started. The discharging motor 206 can drive the transmission shaft 207 connected thereto to rotate. When the transmission shaft 207 rotates, the positive threaded rod 208 and the reverse threaded rod 211 connected in series with the transmission shaft 207 through the synchronous chain 209 will rotate synchronously.

[0036] The lower side of the outer surface of the positive threaded rod 208 is connected with a first internal threaded sleeve 210 through a thread, and the surface of the first internal threaded sleeve 210 facing the baffle plate 205 is fixed to the baffle plate 205; when the positive threaded rod 208 rotates, the first internal threaded sleeve 210 connected to the lower side of the outer surface of the positive threaded rod 208 through the threaded structure will move up and down accordingly, and the positive threaded rod 208 is moved upward at this time. As the positive threaded rod 208 moves, the baffle plate 205 fixed thereto will move upward together with it. When the lower end surface of the baffle plate 205 is higher than the upper end surface of the metal tube 203 located at the bottom, the metal tube 203 located at the bottom will roll along the inclined rolling surface 204 into the interior of the arc groove 224. After entering the arc groove 224, the lifting metal tube guide wheel 219 is moved upward to lift the metal tube 203. When the axis of the metal tube 203 is aligned with the metal tube claw plate 3, the front end of the metal tube 203 is clamped by the metal tube automatic clamping head 223, and then the metal tube 203 fixed thereto is pushed backward by the metal tube automatic clamping head 223. The rear end of the metal tube 203 pushed backward will enter the interior of the metal tube claw plate 3, and as the metal tube automatic clamping head 223 pushes, the metal tube 203 will pass through the metal tube claw plate 3. When the length of the metal tube automatic clamping head 223 passing through the metal tube claw plate 3 reaches the specified length, it can be cut off by the laser cutting head 4.

[0037] The upper side of the outer surface of the reverse threaded rod 211 is connected with a second internal threaded sleeve 212 through a thread, and the surface of the second internal threaded sleeve 212 facing the adjustment mechanism is fixed to the adjustment mechanism; the adjustment mechanism includes a horizontal plate 213, and a motor protection shell 214 is fixedly provided on one side of the lower end surface of the horizontal plate 213, and an adjustment motor 216 is fixedly installed inside the motor protection shell 214, and the output shaft of the adjustment motor 216 is connected with an adjustment threaded rod 217 through a coupling, and the adjustment threaded rod 217 horizontally penetrates the dividing plate 218, and the adjustment threaded rod 217 and the dividing plate 218 are connected by a threaded structure, and a second guide rod 220 is provided below the adjustment threaded rod 217 to horizontally penetrate the dividing plate 218; The outer thread of the reverse threaded rod 211 is opposite to that of the positive threaded rod 208. Therefore, when the baffle plate 205 is moved upward by the positive threaded rod 208, the second inner threaded sleeve 212 located on the upper side of the outer surface of the reverse threaded rod 211 will move downward accordingly. As the second inner threaded sleeve 212 descends, the dividing plate 218 connected to it through the adjustment mechanism will move downward accordingly. The bottom end of the dividing plate 218 moving downward will contact the second metal tube 203 from the bottom to the top and push the metal tube 203 upward, so as to isolate the first metal tube 203 from the bottom to the top from the second metal tube 203. The above technical solution can prevent the situation where multiple metal tubes 203 roll out together when the baffle plate 205 is opened.

[0038] Before adding the metal tube 203, start the adjustment motor 216 first. The adjustment motor 216 can drive the adjustment threaded rod 217 connected thereto to rotate. When the adjustment threaded rod 217 rotates, the dividing plate 218 threadably connected thereto will move along the adjustment threaded rod 217. At this time, the distance between the dividing plate 218 and the baffle plate 205 is adjusted to four-thirds of the width of the metal tube 203. Through the above technical solution, the automatic metal tube feeding mechanism 2 can adapt to metal tubes 203 of various widths.

[0039] When a metal tube 203 rolls out, the discharging motor 206 drives the transmission shaft 207 connected thereto to rotate in the reverse direction, so as to synchronously move the dividing plate 218 upward while the baffle plate 205 moves downward. When the lower end surface of the dividing plate 218 is higher than the upper end surface of the metal tube 203 located at the bottom at this time, the metal tube 203 will roll downward, and the metal tube 203 will be blocked by the baffle plate 205 moving downward, and cannot continue to roll out to the outside along the inclined rolling surface 204.

[0040] A first guide rod 215 is provided on one side of the adjustment threaded rod 217 and is vertically movable and penetrates the motor protective housing 214, and the upper and lower ends of the first guide rod 215 are fixed to the interior of the metal housing 201; by vertically penetrating the first guide rod 215 through the motor protective housing 214, the motor protective housing 214, the cross plate 213 and the second internal threaded sleeve 212 fixed to the cross plate 213 are unable to rotate, thereby ensuring that when the reverse-threaded rod 211 rotates, the second internal threaded sleeve 212 can move up and down with the rotation of the reverse-threaded rod 211.

[0041] The rear of the laser cutting machine 1 is provided with an impact-reducing metal tube collection mechanism, which includes a slide rail base 5, an inclined slide 6, a concave slide frame 7, a metal tube storage box 8, a rotating motor 9, a rotating shaft 10, a circular metal shell 11, six pushing mechanisms and six electric clamping clamps 13. The inclined slide 6 is slidably mounted on the upper end surface of the slide rail base 5, the metal tube storage box 8 is located below the front end of the inclined slide 6, the concave slide frame 7 is slidably mounted on the outer surface of the inclined slide 6, the rotating motor 9 is fixedly mounted inside the concave slide frame 7, and the rotating shaft 10 is connected to the rotating motor 9 through a coupling. Output shaft, the circular metal shell 11 is fixedly sleeved on the outer surface of the rotating shaft 10, and the six pushing mechanisms are respectively fixedly installed on the six end corners inside the circular metal shell 11, and the six pushing mechanisms are respectively connected to the six circular metal shells 11; if the inner wall of the cut metal tube 203 is thicker and is not afraid of impact, move the front end of the inclined slide 6 to the bottom of the laser cutting head 4, and move the metal tube storage box 8 to the side of the lower front end of the inclined slide 6. At this time, the cut metal tube 203 will fall onto the inclined slide 6 and roll along the inclined slide 6 into the interior of the metal tube storage box 8.

[0042] The pushing mechanism includes a pushing cylinder 12, and a piston rod of the pushing cylinder 12 faces the electric clamping clamp 13 and is fixed between the electric clamping clamp 13;

[0043] Both sides of the push cylinder 12 are provided with a metal guide rod 14 that is movably inserted into the circular metal shell 11, and the surface of the metal guide rod 14 facing the electric clamping clamp 13 is fixed between the electric clamping clamp 13; if the inner wall of the cut metal tube 203 is thin and is more likely to be deformed due to impact, the front end of the inclined slide 6 is moved away from the bottom of the laser cutting head 4, and the metal tube storage box 8 is moved to the bottom of the laser cutting head 4, and then the circular metal shell 11 is moved to the bottom of the metal tube 203 passing through the metal tube clamping plate 3 through the concave sliding frame 7, and then through the middle of the circular metal shell 11 The pushing cylinder 12 connected to the electric clamping clamp 13 in the position pushes the electric clamping clamp 13 upward, and clamps the metal tube 203 passing through the metal tube claw plate 3 through the electric clamping clamp 13. After that, when the metal tube 203 is cut by the laser cutting head 4, the rotating shaft 10 connected thereto is driven to rotate by the rotating motor 9. When the rotating shaft 10 rotates, the circular metal shell 11 fixedly sleeved on the outer surface of the rotating shaft 10 and the six electric clamping clamps 13 connected to the rotating shaft 10 through the six pushing cylinders 12 will change their positions accordingly. At this time, the electric clamp holding the cut metal tube 203 will be clamped. The clamp 13 leaves from the current position and moves another electric clamping clamp 13 to the middle position above the circular metal shell 11 to continue clamping the metal tube 203. When the electric clamping clamp 13 holding the metal tube 203 leaves from the middle position above the circular metal shell 11, the electric clamping clamp 13 pushed outward is retracted to its original position by the corresponding pushing cylinder 12. When the electric clamping clamp 13 holding the cut metal tube 203 moves to the middle position below the circular metal shell 11, the electric clamping clamp 13 is pushed downward by the corresponding pushing cylinder 12 to enter the metal tube storage box 8. Inside, when the electric clamping clamp 13 contacts the inner wall of the metal tube storage box 8 or the metal tube 203 located inside the metal tube storage box 8, the metal tube 203 clamped by the electric clamping clamp 13 is released, and then under the action of gravity, the metal tube 203 will fall into the metal tube storage box 8. After the electric clamping clamp 13 releases the metal tube 203, the electric clamping clamp 13 can be recovered again by the pushing mechanism. The above technical solution can reduce the impact force between the cut metal tube 203 and external objects, thereby preventing the thinner metal tube 203 from being deformed due to impact when cutting the thinner metal tube 203.

[0044] The metal guide rod 14 fixed to the electric clamping clamp 13 can prevent the angle of the electric clamping clamp 13 from deviating during long-term use of the electric clamping clamp 13, thereby preventing the electric clamping clamp 13 from being unable to clamp the metal pipe 203.

[0045] Based on the above metal tube laser processing device, the present invention also provides a laser processing method, which includes the following steps:

[0046] Step A: Before using the equipment, first move all the lifting metal tube guide wheels downwards and ensure that the upper end surface of the lifting metal tube guide wheels is lower than the lower inner wall of the arc groove. Then add the metal tube to the inside of the metal tube storage groove, and the metal tube located at the lower side of the metal tube storage groove will contact the inclined rolling surface. After the metal tube is added, the baffle plate is moved upwards through the synchronous mechanism. When the lower end surface of the baffle plate is higher than the upper end surface of the metal tube at the bottom, the metal tube at the bottom will roll down into the arc groove along the inclined rolling surface. When a metal tube enters the arc groove, it will move upwards. The lifting metal pipe guide wheel is moved upward to lift the metal pipe. When the axis of the metal pipe is aligned with the metal pipe clamping plate, the front end of the metal pipe is clamped by the metal pipe automatic clamping head. Then, the metal pipe fixed thereto is pushed backward by the metal pipe automatic clamping head. The rear end of the metal pipe pushed backward will enter the interior of the metal pipe clamping plate, and as the metal pipe automatic clamping head pushes, the metal pipe will pass through the metal pipe clamping plate. When the length of the metal pipe automatic clamping head passing through the metal pipe clamping plate reaches the specified length, it can be cut off by the laser cutting head.

[0047] Step B: When the baffle plate is moved upward by the synchronization mechanism, the partition plate will be pushed downward synchronously. As the partition plate descends, the bottom end of the partition plate will enter between the first metal tube and the second metal tube from bottom to top, thereby isolating the two. The partition plate can be moved parallel to each other by the adjustment mechanism. Before adding the metal tube, the distance between the partition plate and the baffle plate is adjusted to four thirds of the width of the metal tube by the adjustment mechanism.

[0048] Step C: If the inner wall of the metal tube to be cut is thicker and you are not afraid of collision, move the front end of the inclined slide to the bottom of the laser cutting head, and move the metal tube storage box to the side of the lower part of the front end of the inclined slide. At this time, the cut metal tube will fall onto the inclined slide and roll down along the inclined slide into the inside of the metal tube storage box;

[0049] Step D: If the inner wall of the cut metal tube is thin and is more likely to be deformed due to impact, move the front end of the inclined slide from under the laser cutting head, and move the metal tube storage box to under the laser cutting head, and then move the circular metal shell to under the metal tube passing through the metal tube claw plate through the concave sliding frame, and then push the electric clamp located in the middle position above the circular metal shell upward through the pushing mechanism, and clamp the metal tube passing through the metal tube claw plate through this electric clamp, and then when the laser cutting head is used to cut the lower metal tube, the circular metal shell is rotated by the rotating motor to move the electric clamp holding the cut metal tube away from the current position, and move another electric clamp to the middle above the circular metal shell. The metal tube is continued to be clamped in this way. When the electric clamp holding the metal tube leaves the middle position above the circular metal shell, the electric clamp pushed outward is retracted to its original position through the pushing mechanism. When the electric clamp holding the cut metal tube moves to the middle position below the circular metal shell, the electric clamp is pushed downward through the pushing mechanism to make it enter the interior of the metal tube storage box. When the electric clamp contacts the inner wall of the metal tube storage box or the metal tube inside the metal tube storage box, the metal tube clamped by the electric clamp is released. Then, under the action of gravity, the metal tube will fall into the interior of the metal tube storage box. When the electric clamp releases the metal tube, the electric clamp can be recovered again through the pushing mechanism.

[0050] To sum up, the metal tube laser processing device and laser processing method provided by the present invention can make the metal tubes located inside the metal tube storage groove roll one by one into the inside of the arc groove, and insert the bottom ends of the metal tubes into the inside of the metal tube claw plate to install them. The metal tubes can be installed automatically, thereby improving the degree of automation of the equipment and reducing the cumbersomeness of the operation of the equipment; the impact force between the cut metal tube and external objects can be reduced, thereby preventing the thinner metal tube from being deformed due to impact when cutting the thinner metal tube.

[0051] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A metal tube laser processing device, characterized in that: It includes a laser cutting machine, wherein an automatic metal tube feeding mechanism is arranged in front of the laser cutting machine, and the automatic metal tube feeding mechanism includes a metal shell, a metal tube receiving groove, a baffle plate, a dividing plate, a synchronization mechanism, an adjustment mechanism, a metal tube conveying cabinet, an automatic metal tube clamping head, an arc groove, a plurality of lifting metal tube guide wheels and a plurality of metal tubes, wherein the metal tube receiving groove is located on the upper end surface of the metal shell, the inner wall of the lower end of the metal tube receiving groove is an inclined rolling surface, and the plurality of metal tubes are all located inside the metal tube receiving groove; The surface of the baffle plate facing the metal tube is in contact with the lowest metal tube, and the baffle plate is slidably connected to the metal shell, the partition plate is located above the middle position between the first metal tube and the second metal tube from bottom to top, the bottom end of the partition plate is a conical surface, the adjustment mechanism can move the partition plate, and the synchronization mechanism can move the partition plate downward in the process of moving the baffle plate upward; The arc groove is located in the middle of the upper end surface of the metal pipe conveying cabinet, and the position of the arc groove corresponds to the position of the inclined rolling surface. The plurality of lifting metal pipe guide wheels are installed in the arc groove, and the metal pipe is slidably installed on one side of the upper end surface of the metal pipe conveying cabinet. An impact-reducing metal tube collecting mechanism is provided at the rear of the laser cutting machine, and the impact-reducing metal tube collecting mechanism includes a slide rail base, an inclined slide, a concave sliding frame, a metal tube storage box, a rotating motor, a rotating shaft, a circular metal shell, six pushing mechanisms and six electric clamping clamps. The inclined slide is slidably installed on the upper end surface of the slide rail base, the metal tube storage box is located below the front end of the inclined slide, the concave sliding frame is slidably installed on the outer surface of the inclined slide, the rotating motor is fixedly installed inside the concave sliding frame, the rotating shaft is connected to the output shaft of the rotating motor through a coupling, the circular metal shell is fixedly sleeved on the outer surface of the rotating shaft, the six pushing mechanisms are respectively fixedly installed on the six end corners inside the circular metal shell, and the six pushing mechanisms are respectively connected to the six circular metal shells.

2. The metal tube laser processing device according to claim 1, characterized in that: A metal tube claw disk is fixedly installed on one side inside the laser cutting machine, a laser cutting head is arranged above the metal tube claw disk, and the metal tube automatic feeding mechanism, the metal tube claw disk, the laser cutting head and the impact-reducing metal tube collecting mechanism are all electrically connected to the laser cutting machine.

3. The metal tube laser processing device according to claim 1, characterized in that: The synchronization mechanism includes a discharging motor, the output shaft of the discharging motor is connected to a transmission shaft through a coupling, a positive threaded rod is provided on one side of the transmission shaft, and a negative threaded rod is provided on the other side of the transmission shaft, the positive threaded rod and the negative threaded rod are respectively connected in series with the transmission shaft through a synchronization chain, and the external threads of the positive threaded rod and the negative threaded rod are opposite.

4. The metal tube laser processing device according to claim 3, characterized in that: The lower side of the outer surface of the positive threaded rod is connected with a first internal threaded sleeve through a thread, and the surface of the first internal threaded sleeve facing the baffle plate is fixed to the baffle plate.

5. The metal tube laser processing device according to claim 3, characterized in that: The upper side of the outer surface of the reverse threaded rod is connected with a second internal thread sleeve through a thread, and the surface of the second internal thread sleeve facing the adjustment mechanism is fixed to the adjustment mechanism.

6. The metal tube laser processing device according to claim 5, characterized in that: The adjustment mechanism includes a horizontal plate, a motor protection shell is fixedly provided on one side of the lower end surface of the horizontal plate, an adjustment motor is fixedly installed inside the motor protection shell, the output shaft of the adjustment motor is connected to an adjustment threaded rod through a coupling, the adjustment threaded rod transversely penetrates the dividing plate, the adjustment threaded rod and the dividing plate are connected by a threaded structure, and a second guide rod is provided below the adjustment threaded rod and transversely penetrates the dividing plate.

7. The metal tube laser processing device according to claim 6, characterized in that: A first guide rod which vertically moves through the motor protective housing is provided on one side of the adjusting threaded rod, and the upper and lower ends of the first guide rod are fixed to the inside of the metal housing.

8. The metal tube laser processing device according to claim 1, characterized in that: The pushing mechanism comprises a pushing cylinder, and the piston rod of the pushing cylinder is fixed between the surface facing the electric clamping clamp and the electric clamping clamp; Both sides of the pushing cylinder are provided with a metal guide rod which is movably inserted into the circular metal shell, and the surface of the metal guide rod facing the electric clamping clamp is fixed between the electric clamping clamp.

9. A laser processing method of a metal tube laser processing device according to any one of claims 1 to 8, characterized in that: include: Step A: Before using the equipment, first move all the lifting metal tube guide wheels downwards and ensure that the upper end surface of the lifting metal tube guide wheels is lower than the lower inner wall of the arc groove. Then add the metal tube to the inside of the metal tube storage groove, and the metal tube located at the lower side of the metal tube storage groove will contact the inclined rolling surface. After the metal tube is added, the baffle plate is moved upwards through the synchronous mechanism. When the lower end surface of the baffle plate is higher than the upper end surface of the metal tube at the bottom, the metal tube at the bottom will roll down into the arc groove along the inclined rolling surface. When a metal tube enters the arc groove, it will move upwards. The lifting metal pipe guide wheel is moved upward to lift the metal pipe. When the axis of the metal pipe is aligned with the metal pipe clamping plate, the front end of the metal pipe is clamped by the metal pipe automatic clamping head. Then, the metal pipe fixed thereto is pushed backward by the metal pipe automatic clamping head. The rear end of the metal pipe pushed backward will enter the interior of the metal pipe clamping plate, and as the metal pipe automatic clamping head pushes, the metal pipe will pass through the metal pipe clamping plate. When the length of the metal pipe automatic clamping head passing through the metal pipe clamping plate reaches the specified length, it can be cut off by the laser cutting head. Step B: When the baffle plate is moved upward by the synchronization mechanism, the partition plate will be pushed downward synchronously. As the partition plate descends, the bottom end of the partition plate will enter between the first metal tube and the second metal tube from bottom to top, thereby isolating the two. The partition plate can be moved parallel to each other by the adjustment mechanism. Before adding the metal tube, the distance between the partition plate and the baffle plate is adjusted to four thirds of the width of the metal tube by the adjustment mechanism. Step C: If the inner wall of the metal tube to be cut is thicker and you are not afraid of collision, move the front end of the inclined slide to the bottom of the laser cutting head, and move the metal tube storage box to the side of the lower part of the front end of the inclined slide. At this time, the cut metal tube will fall onto the inclined slide and roll down along the inclined slide into the inside of the metal tube storage box; Step D: If the inner wall of the cut metal tube is thin and is more likely to be deformed due to impact, move the front end of the inclined slide from under the laser cutting head, and move the metal tube storage box to under the laser cutting head, and then move the circular metal shell to under the metal tube passing through the metal tube claw plate through the concave sliding frame, and then push the electric clamp located in the middle position above the circular metal shell upward through the pushing mechanism, and clamp the metal tube passing through the metal tube claw plate through this electric clamp, and then when the laser cutting head is used to cut the lower metal tube, the circular metal shell is rotated by the rotating motor to move the electric clamp holding the cut metal tube away from the current position, and move another electric clamp to the middle above the circular metal shell. The metal tube is continued to be clamped in this way. When the electric clamp holding the metal tube leaves the middle position above the circular metal shell, the electric clamp pushed outward is retracted to its original position through the pushing mechanism. When the electric clamp holding the cut metal tube moves to the middle position below the circular metal shell, the electric clamp is pushed downward through the pushing mechanism to make it enter the interior of the metal tube storage box. When the electric clamp contacts the inner wall of the metal tube storage box or the metal tube inside the metal tube storage box, the metal tube clamped by the electric clamp is released. Then, under the action of gravity, the metal tube will fall into the interior of the metal tube storage box. When the electric clamp releases the metal tube, the electric clamp can be recovered again through the pushing mechanism.

Images