Full-automatic feeding device of laser pipe cutting machine

Abstract

The invention relates to the technical field of laser pipe cutting machine corollary equipment, in particular to a full-automatic feeding device of a laser pipe cutting machine. Comprising a frame, a storage unit, a feeding and distributing unit, a lifting unit, a manipulator unit, a feeding unit and a necking machine. The laser pipe cutting machine is arranged on the left side of the frame, the necking machine is arranged on the rear side of the frame, the storage unit is arranged on the right side of the frame, the feeding and distributing unit, the feeding unit and the lifting unit which are connected with the storage unit are fixedly arranged above the frame from right to left, and the manipulator unit is slidably connected to the feeding and distributing unit in the left-right direction of the frame. According to the invention, the feeding unit is matched with the necking machine, so that the procedure of necking the inserted pipe in the feeding process is realized, the cutting production efficiency of the pipe needing to be inserted is improved, and the device has positive production significance.

Description

Technical Field

[0001] The invention relates to the technical field of supporting equipment for laser tube cutting machines, and in particular to a full-automatic feeding device for laser tube cutting machines. Background Art

[0002] The laser cutting machine focuses the laser emitted from the laser into a high-power density laser beam through the optical path system, and uses the laser beam to replace the traditional mechanical knife. It has the characteristics of high precision, fast cutting, smooth incision, low processing cost, etc., and can meet the cutting needs of various shapes of pipes.

[0003] Many automatic feeding devices have been developed for laser cutting machines. These automatic feeding devices have various structural forms, but there is no equipment that can automatically feed the pipe after the pipe is shrunk with a shrinking machine. Some pipes need to be shrunk within a certain length of the end before cutting to reduce the diameter of this part of the pipe to facilitate later plug-in assembly. This requires the pipe to be shrunk with a shrinking machine before cutting. The current common solution is to manually shrink the pipe on the shrinking machine, collect the shrunk pipes, and transport them to the laser pipe cutting machine together. The pipes are fed to the laser pipe cutting machine manually or with the help of an automatic feeding device to cut, punch, and other processing. In this process, the shrinking machine is manually loaded and unloaded, and the temporary storage and transportation of the pipes have a low degree of automation, which is time-consuming and labor-intensive, inefficient, and occupies a large space in the factory.

[0004] The existing automatic feeding devices of laser tube cutting machines with clamps for precise feeding are divided into two categories. One category is with a large crossbeam. Although this type of feeding device has good accuracy, it is expensive. In addition, for long tubes such as 12 meters, the crossbeam span is too large, and it is easy to sag and deform in the middle. The processing and manufacturing are difficult, the cost is high, and the accuracy is not easy to maintain for a long time. The other category is without a large crossbeam. Although this type does not limit the length of the pipe and the cost is not high, there is no synchronization mechanism for the lifting components when the pipe is lifted and moved back and forth, and the moving speed is slow. Although it is also clamped and fed, the feeding accuracy is not high. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the above shortcomings and deficiencies of the prior art, the present invention provides a fully automatic feeding device for a laser tube cutting machine, which solves the problem that the feeding device of the laser tube cutting machine in the prior art is difficult to integrate the tube shrinking function. At the same time, the present invention solves the problem of automatic and accurate feeding of long tubes.

[0007] (II) Technical solution

[0008] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0009] An embodiment of the present invention provides a fully automatic feeding device for a laser tube cutting machine, comprising a frame, a material storage unit, a material feeding and dividing unit, a material lifting unit, a manipulator unit, a material feeding unit and a necking machine.

[0010] A laser tube cutting machine is arranged on the left side of the frame, the shrinking machine is arranged on the rear side of the frame, the material storage unit is arranged on the right side of the frame, and the feeding and dividing unit, the feeding unit and the lifting unit connected to the material storage unit are fixedly arranged on the top of the frame from right to left, and the robot unit is slidably connected to the feeding and dividing unit along the left and right directions of the frame.

[0011] The storage unit is used to store the pipes to be processed, the feeding and dividing unit is used to receive the pipes transported by the storage unit and to support and divide the pipes, the feeding unit is used to deliver the pipes lifted by the feeding and dividing unit to the shrinking machine for shrinking, the pipes after shrinking are transported to the lifting unit for lifting after being divided by the feeding and dividing unit, and the lifted pipes are delivered to the laser pipe cutting machine for cutting by the robot unit.

[0012] A further technical solution is that the material storage unit includes at least two groups of material storage mechanisms, each group of the material storage mechanisms includes a material tape bracket, a material tape and a winding wheel, the winding wheels of multiple groups of the material storage mechanisms are fixedly connected to a winding shaft, the winding shaft is rotatably connected to the frame and driven by a winding motor fixed on the frame.

[0013] In each group of the material storage mechanism, one end of the material strip is fixed to the material strip bracket, and the other end is fixed to the winding wheel. The middle part of the material strip forms a U-shaped material storehouse with an opening facing upward, and the pipes to be processed are placed in the U-shaped material storehouse.

[0014] A further technical solution is that the feeding and distributing unit comprises a plurality of feeding and distributing mechanisms, and the plurality of feeding and distributing mechanisms are respectively arranged on the plurality of storage mechanisms in a one-to-one correspondence;

[0015] Each group of the feeding and distributing mechanisms comprises a material blocking mechanism, a buffer mechanism, a material supporting mechanism, a material distributing mechanism and a base;

[0016] The base is fixed above the frame, the material blocking mechanism is connected to the base in a liftable manner, the top of the material blocking mechanism is provided with a retractable kicking assembly, the middle of the material blocking mechanism is provided with a convex portion, the distance between the extended kicking assembly and the convex portion is the diameter length of a pipe, and the distance between the edge of the raised material blocking mechanism and the edge of the U-shaped material storage is the diameter length of a pipe;

[0017] A smooth strip is arranged on the top of the base, and the buffer mechanism and the supporting mechanism are arranged on both sides of the smooth strip relatively to each other. The buffer mechanism is rotatably connected to the base, and is used to buffer the pipes separated by the material blocking mechanism. The supporting mechanism is liftably connected to the base, and a clamping part is arranged on the top of the supporting mechanism, and is used to clamp and lift the pipes blocked by the buffer mechanism. The area between the material dividing mechanism and the buffer mechanism is a buffer zone, and the smooth strip is arranged in the buffer zone. The material dividing mechanism is liftably connected to the base, and is used to deliver the pipes in the buffer zone to the lifting unit.

[0018] A further technical solution is that the feeding unit includes a frame, a driving mechanism, a lifting mechanism and a clamping mechanism. The frame is fixed above the frame, and the length direction of the frame is parallel to the front-to-back direction of the frame, the upper surface of the frame is slidably connected to the lifting mechanism along the front-to-back direction of the frame, the driving mechanism and the lifting mechanism are driven and connected through a chain transmission, and the clamping mechanism is arranged on the top of the lifting mechanism.

[0019] A further technical solution is that the lifting mechanism includes a first driving cylinder, a hinge seat, a connecting rod, a rotating shaft, a rocker arm, a base and a limiter. The clamping mechanism includes a second driving cylinder, a connecting rod mechanism with a pair of clamping jaws and a clamping jaw base. The base is slidably arranged on the frame along the front-back direction, the upper surface of the base is hinged to the lower end of the rocker arm, the upper end of the rocker arm is hinged to the clamping jaw base, the front end of the base is provided with the limiter, the rear end of the base is provided with the first driving cylinder, the end of the piston rod of the first driving cylinder is connected to the hinge seat, the lower surface of the hinge seat is slidably connected to the base, the upper surface of the hinge seat is hinged to one end of the connecting rod, the other end of the connecting rod is hinged to the rotating shaft, and the two ends of the rotating shaft are connected to the middle part of the rocker arm.

[0020] A second driving cylinder is provided at one end of the clamp base, and a pair of clamps are slidably provided on the other end of the clamp base. The output end of the second driving cylinder is connected to the first group of clamps in the pair of the clamps, and the first group of clamps is connected to the second group of clamps in the pair of the clamps through the connecting rod mechanism. Contour wear-resistant blocks are provided on the first group of clamps and the second group of clamps.

[0021] A further technical solution is that, when the connecting rod and the rocker arm are parallel to each other, the clamping center axis of the clamping part of the supporting mechanism is colinear with the center axis of the feed port of the necking machine and the hinge center of the hinge seat and the connecting rod does not coincide with the hinge center of the rocker arm and the base.

[0022] A further technical solution is that the lifting unit includes multiple groups of lifting mechanisms, and the multiple groups of lifting mechanisms are respectively and one by one arranged on the multiple groups of feeding and dividing mechanisms, and each group of lifting mechanisms includes a box body, a first lifting plate, a second lifting plate, a first ring chain and a sprocket assembly.

[0023] The box body is slidably connected to the primary lifting plate, the primary lifting plate is slidably connected to the secondary lifting plate, and the top of the secondary lifting plate is provided with an L-shaped pipe supporting portion.

[0024] A driving motor is fixed to the side of the box body, and a rack is provided on the side of the first-level lifting plate. The driving motor is meshed with the rack through a driving gear, thereby driving the first-level lifting plate to move reciprocatingly up and down. The sprocket assembly is provided at the upper and lower ends of the middle position of the first-level lifting plate, and the first ring chain is wound around the sprocket assembly. The first ring chain is provided with a first connecting block and a second connecting block, the first connecting block is fixed to the box body, and the second connecting block is fixed to the secondary lifting plate.

[0025] A further technical solution is that it also includes a fixed length unit, which includes a servo motor, a synchronous belt, a pusher assembly, a support and a fixed length limit plate fixed to the front side of the frame, the support is fixed to the frame, one end of the support is fixed to the servo motor, and the other end is slidably connected to the pusher assembly;

[0026] The servo motor is connected to the pushing assembly through the synchronous belt transmission, and the pushing part of the pushing assembly is located at the rear end of the L-shaped pipe supporting part.

[0027] A further technical solution is that the manipulator unit includes multiple groups of manipulator mechanisms, and the multiple groups of manipulator mechanisms correspond one-to-one to the multiple groups of lifting mechanisms.

[0028] Each group of the manipulator mechanism comprises a manipulator body, the manipulator body is connected to the base in a sliding manner along the left-right direction, a clamp mechanism is provided on the top of the manipulator body, a clutch mechanism is provided on the bottom, and a second ring chain is provided on the base. The clamp mechanism can clamp the pipe above the L-shaped pipe support portion, the second ring chain is equipped with a driving device, the second ring chain can be powered to connect or disconnect the clutch mechanism, and the clutch mechanism can drive the manipulator body and the clamp mechanism to reciprocate along the left-right direction between the lifting unit and the laser pipe cutting machine.

[0029] A further technical solution is to further include a front header plate located at the front end of the material storage unit and a rear header plate located at the rear end of the material storage unit.

[0030] (III) Beneficial effects

[0031] The beneficial effects of the present invention are:

[0032] Compared with the prior art, the feeding and distributing unit and the feeding unit in the present invention can cooperate with each other to accurately deliver the pipe to be processed to the shrinking machine for shrinking and accurately return the shrinked pipe to the feeding and distributing unit. This process reduces the processing error of manual shrinking, and also avoids the time-consuming and labor-intensive manual transportation and the occupation of factory space. The automation level of temporary storage and transportation of pipes is improved, and the process of inserting pipe shrinking during the feeding process is realized, which improves the cutting production efficiency of the pipes that need to be plugged in, and has positive production significance. The present invention has a simple structure, avoids the large beam structure of the traditional laser cutting machine for feeding, reduces the manufacturing cost, and ensures high-precision feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the general assembly structure of the fully automatic feeding device of the laser tube cutting machine;

[0034] Figure 2 for Figure 1 A top view of

[0035] Figure 3 It is a schematic diagram of the overall structure of the storage unit;

[0036] Figure 4 It is a schematic diagram of the overall structure of the feeding and distributing unit;

[0037] Figure 5 It is a schematic diagram of the connection structure between the material storage mechanism and the material feeding and distributing mechanism;

[0038] Figure 6 It is the overall structural schematic diagram of the feeding unit;

[0039] Figure 7 for Figure 5 A schematic diagram of the enlarged structure at A in the middle;

[0040] Figure 8 It is a schematic diagram of the overall structure of the clamping mechanism of the feeding unit;

[0041] Fig. 9 It is the overall structural diagram of the lifting mechanism;

[0042] Fig.10 for Figure 8 A cross-sectional view along the plane where the first endless chain is located;

[0043] Fig.11 It is the overall structural schematic diagram of the fixed-length unit;

[0044] Fig.12 It is a schematic diagram of the connection structure between the robot mechanism and the feeding and dividing mechanism.

[0045] [Description of Reference Numerals]

[0046] 100:frame;

[0047] 200: material storage unit; 210: material storage mechanism; 201: material belt support; 202: material belt; 203: material winding wheel; 204: material winding shaft; 205: material winding motor; 206: front header plate; 207: rear header plate;

[0048] 300: feeding and distributing unit; 310: feeding and distributing mechanism; 301: blocking mechanism; 302: buffer mechanism; 303: supporting mechanism; 304: distributing mechanism; 305: base; 306: smooth strip; 301-1: kicking assembly; 301-2: raised part;

[0049] 400: lifting unit; 410: lifting mechanism; 401: box; 402: primary lifting plate; 403: secondary lifting plate; 404: first ring chain; 405: sprocket assembly; 406: first connecting block; 407: second connecting block; 403-1: L-shaped pipe support;

[0050] 500: fixed length unit; 501: servo motor; 502: synchronous belt; 503: pusher assembly; 504: support; 505: fixed length limit plate;

[0051] 600: robot unit; 610: robot mechanism; 601: robot arm body; 602: clamp mechanism; 603: clutch mechanism; 604: second ring chain;

[0052] 700: feeding unit; 701: frame; 702: driving mechanism; 703: lifting mechanism; 704: clamping mechanism; 703-1: first driving cylinder; 703-2: hinge seat; 703-3: connecting rod; 703-4: rotating shaft; 703-5: swing rod; 703-6: base; 703-7: limiter; 704-1: second driving cylinder; 704-2: transmission connecting rod; 704-3: clamping claw; 704-4: clamping claw base; 704-5: contoured wear-resistant block;

[0053] 800: Shrinking machine;

[0054] 900: Laser tube cutting machine. DETAILED DESCRIPTION

[0055] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below with reference to the accompanying drawings and through specific embodiments. Figure 1 The orientation is used as a reference.

[0056] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0057] Please refer to Figure 1 and Figure 2 , Figure 1 A three-dimensional schematic diagram of the fully automatic feeding device of the laser tube cutting machine of this embodiment is shown. Figure 2 A schematic diagram of the top view of the fully automatic feeding device of the laser tube cutting machine of this embodiment is shown.

[0058] The present embodiment provides a fully automatic loading device for a laser tube cutting machine, including: a frame 100, a material storage unit 200, a material feeding and dividing unit 300, a material lifting unit 400, a robot unit 600, a material feeding unit 700 and a necking machine 800.

[0059] A laser tube cutting machine 900 is arranged on the left side of the frame 100, a shrinking machine 800 is arranged on the rear side of the frame 100, a storage unit 200 is arranged on the right side of the frame 100, and a feeding and dividing unit 300, a feeding unit 700 and a lifting unit 400 connected to the storage unit 200 are fixedly arranged above the frame 100 from right to left, and the manipulator unit 600 is slidably connected to the feeding and dividing unit 300 along the left and right directions of the frame 100.

[0060] The storage unit 200 is used to store the pipes to be processed, the feeding and dividing unit 300 is used to receive the pipes transported by the storage unit 200 and to support and divide the pipes, the feeding unit 700 is used to send the pipes lifted by the feeding and dividing unit 300 to the shrinking machine 800 for shrinking, and the pipes after shrinking are transported to the lifting unit 400 for lifting after being divided by the feeding and dividing unit 300. The lifted pipes are sent to the laser pipe cutting machine 900 for cutting through the robot unit 600.

[0061] In this embodiment, the laser tube cutting machine 900 is arranged on the left side of the frame 100, and the cutting main machine of the laser tube cutting machine 900 is located on the front side of the frame 100. The top of the feeding and distributing unit 300 has a downward slope from right to left, and a fixing hole is provided on the frame 100. The feeding and distributing unit 300, the feeding unit 700 and the lifting unit 400 are all connected to the fixing hole by screw thread fixing, thereby ensuring the correct installation position of each unit.

[0062] The working process of the fully automatic loading device of the laser tube cutting machine of this embodiment is as follows: In the first step, the pipe to be processed in the storage unit 200 in the initial position is rolled up to the feeding and distributing unit 300 under the action of driving. In the second step, after the feeding and distributing unit 300 kicks the pipe to be processed, the pipe to be processed in the storage unit 200 is restored to its original position under the action of driving. At this time, a pipe to be processed is left at the feeding and distributing unit 300. In the third step, the pipe to be processed rolls to the left along the feeding and distributing unit 300 to the feeding unit 700 and is lifted by the feeding and distributing unit 300. In the fourth step, the feeding unit 700 clamps the lifted pipe to be processed and moves backward to send the pipe to be processed to the necking machine 800 at the rear end for necking. In the fifth step, the pipe after necking is clamped by the feeding unit 700 and moves forward and returns to the feeding and distributing unit 300. In the sixth step, the returned pipe continues to roll along the feeding and distributing unit 300 to the left to the lifting unit 400. In the seventh step, the lifting unit 400 lifts the pipe to a certain height. At this time, the manipulator unit 600 moves left and right to adjust its position and clamps the pipe lifted by the lifting unit 400 and continues to move left to the laser pipe cutting machine 900. In the eighth step, the laser pipe cutting machine 900 cuts the pipe after the shrinking is completed.

[0063] Furthermore, the fully automatic loading device of the laser tube cutting machine of this embodiment also includes: an electrical control cabinet, which is electrically connected to the storage unit 200, the feeding and dividing unit 300, the lifting unit 400, the manipulator unit 600, the feeding unit 700, the necking machine 800 and the laser tube cutting machine 900, respectively, to control the coordinated work of each unit.

[0064] Please refer to Figure 2 and Figure 3 The material storage unit 200 includes at least two material storage mechanisms 210, each material storage mechanism 210 includes a material tape support 201, a material tape 202 and a winding wheel 203, and the winding wheels 203 of the plurality of material storage mechanisms 210 are fixedly connected to a winding shaft 204, and the winding shaft 204 is rotatably connected to the frame 100 and driven by a winding motor 205 fixed to the frame 100;

[0065] In each set of material storage mechanisms 210 , one end of the material strip 202 is fixed to the material strip support 201 , and the other end is fixed to the winding wheel 203 . The middle part of the material strip 202 forms a U-shaped material storehouse with an opening upward, and the pipes to be processed are placed in the U-shaped material storehouse.

[0066] Specifically, the storage unit 200 in this embodiment includes 6 groups of storage mechanisms 210, which are arranged in parallel front and back. The length and tension of the material belts 202 on the 6 groups of storage mechanisms 210 are kept consistent. The winding wheel 203 can maintain synchronous rotation under the drive of the winding shaft 204, thereby ensuring that the pipes to be processed in the U-shaped material warehouse are smoothly rolled up.

[0067] Please refer to Figure 2 , Figure 4 and Figure 5 The feeding and distributing unit 300 includes a plurality of feeding and distributing mechanisms 310, which are respectively arranged on the plurality of storage mechanisms 210 in a one-to-one correspondence. Each feeding and distributing mechanism 310 includes a blocking mechanism 301, a buffer mechanism 302, a supporting mechanism 303, a distributing mechanism 304 and a base 305.

[0068] The base 305 is fixed above the frame 100, and the material blocking mechanism 301 is connected to the base 305 in a liftable manner. The top of the material blocking mechanism 301 has a retractable kicking component 301-1, and the middle of the material blocking mechanism 301 has a protrusion 301-2. The distance between the extended kicking component 301-1 and the protrusion 301-2 is the diameter length of a pipe, and the distance between the edge of the raised material blocking mechanism 301 and the edge of the U-shaped material storage is the diameter length of a pipe.

[0069] A smooth strip 306 is provided on the top of the base 305, and the buffer mechanism 302 and the supporting mechanism 303 are relatively arranged on both sides of the smooth strip 306. The buffer mechanism 302 can be rotatably connected to the base 305, and the buffer mechanism 302 is used to buffer the pipes separated by the material blocking mechanism 301. The supporting mechanism 303 can be lifted and connected to the base 305. A clamping part is provided on the top of the supporting mechanism 303, and the supporting mechanism 303 is used to clamp and lift the pipes blocked by the buffer mechanism 302. The area between the dividing mechanism 304 and the buffer mechanism 302 is a buffer zone. The dividing mechanism 304 can be lifted and connected to the base 305, and the dividing mechanism 304 is used to send the pipes in the buffer zone to the lifting unit 400.

[0070] Specifically, in this embodiment, the feeding and distributing unit 300 includes 6 groups of feeding and distributing mechanisms 310, which are arranged in parallel in front and back. The top of the base 305 in the feeding and distributing mechanism 310 has an inclined slope from right to left, which can be used for free rolling of the pipe.

[0071] Specifically, the material blocking mechanism 301 is placed on a linear guide rail and driven by a cylinder, and the direction of movement is from top to bottom or from bottom to top. The kicking component 301-1 thereon is driven by a linear cylinder, and the direction of movement is left and right. After the material blocking mechanism 301 is raised to a specified height, the protrusion 301-2 can be well connected with the material belt 202. The buffer mechanism 302 is in a vertical direction when in a working state, and is hidden in the side of the base 305 under normal conditions. The supporting mechanism 303 is driven by a cylinder, and the direction of movement is up and down. The material distribution mechanism 304 is placed on a linear guide rail and driven by a cylinder, and the direction of movement is from top to bottom or from bottom to top. It should be explained here that the driving cylinders of the material blocking mechanism 301, the supporting mechanism 303 and the material distribution mechanism 304 are all fixedly connected to the base 305 through a mounting seat.

[0072] Please refer to Figure 6 , the feeding unit 700 includes a frame 701, a driving mechanism 702, a lifting mechanism 703 and a clamping mechanism 704;

[0073] The frame 701 is fixed above the frame 100, and the length direction of the frame 701 is parallel to the front-to-back direction. A driving mechanism 702 is set at one end of the frame 701. The upper surface of the frame 701 is slidably connected to the lifting mechanism 703 along the front-to-back direction of the frame 100. The driving mechanism 702 and the lifting mechanism 703 are driven and connected through a chain transmission. A clamping mechanism 704 is set at the top of the lifting mechanism 703.

[0074] For further information, please refer to Figure 7 and Figure 8 The lifting mechanism 703 includes a first driving cylinder 703-1, a hinge seat 703-2, a connecting rod 703-3, a rotating shaft 703-4, a rocker arm 703-5, a base 703-6 and a limiter 703-7; the clamping mechanism 704 includes a second driving cylinder 704-1, a connecting rod mechanism 704-2, a pair of clamping claws 704-3 and a clamping claw base 704-4.

[0075] The base 703-6 is slidably arranged on the frame 701 along the front-back direction, the upper surface of the base 703-6 is hinged to the lower end of the rocker arm 703-5, the upper end of the rocker arm 703-5 is hinged to the clamp base 704-4, the front end of the base 703-6 is provided with a limit piece 703-7, the rear end of the base 703-6 is provided with a first driving cylinder 703-1, the end of the piston rod of the first driving cylinder 703-1 is connected to the hinge seat 703-2, the lower surface of the hinge seat 703-2 is slidably connected to the base 703-6, the upper surface of the hinge seat 703-2 is hinged to one end of the connecting rod 703-3, the other end of the connecting rod 703-3 is hinged to the rotating shaft 703-4, and the two ends of the rotating shaft 703-4 are connected to the middle part of the rocker arm 703-5.

[0076] A second driving cylinder 704-1 is provided at one end of the clamp base 704-4, and a pair of clamps 704-3 are provided on the other end of the clamp base 704-4 for sliding left and right. The output end of the second driving cylinder 704-1 is connected to the first group of clamps in the pair of clamps 704-3, and the first group of clamps is connected to the second group of clamps in the pair of clamps 704-3 through a connecting rod mechanism 704-2. The first group of clamps and the second group of clamps are provided with a contoured wear block 704-5. It is explained here that the shape of the contoured wear block 704-5 is adapted to the clamping surface of the clamp 704-3, and the working surface of the contoured wear block 704-5 can fit closely to the cylindrical pipe, and the material of the contoured wear block 704-5 is preferably a composite material, such as polyurethane.

[0077] When the connecting rod 703-3 and the rocker arm 703-5 are parallel to each other, the clamping center axis of the clamping part of the supporting mechanism 303 is collinear with the center axis of the feed port of the shrinking machine 800, and the hinge center of the hinge seat 703-2 and the connecting rod 703-3 does not coincide with the hinge center of the rocker arm 703-5 and the base 703-6.

[0078] Specifically, the hinge seat 703-2 moves forward and backward through the linear guide rail on the base 703-6, thereby controlling the lifting and lowering of the clamping mechanism 704; the base 703-6 moves forward and backward through the linear guide rail on the frame 701, thereby controlling the lifting mechanism 703 and the clamping mechanism 704 to move in the forward and backward direction together.

[0079] It should be noted that when the clamp mechanism 704 is at the low point, although the thrust of the first driving cylinder 703-1 is converted into a small force to lift the clamp mechanism 704, the clamp mechanism 704 is in an open state and unloaded at this time, and the load of the first driving cylinder 703-1 is only the weight of the clamp mechanism 704. As the piston rod of the first driving cylinder 703-1 extends, the clamp mechanism 704 gradually rises to the high point. When it reaches the highest point, the clamp 704-3 clamps the pipe to load and unload the shrinking machine 800. At this time, the clamp mechanism 704 is subjected to the horizontal force of the front and rear, and the horizontal force intends to make the swing rod 703-5 swing left and right. However, since the hinge center of the hinge seat 703-2 and the connecting rod 703-3 does not coincide with the hinge center of the rocker arm 703-5 and the base 703-6, at this time, the rocker arm 703-5 is forced by the connecting rod 703-3 to not swing independently, and the front and rear horizontal forces on the clamping mechanism 704 are converted into the vertical upward pulling force of the connecting rod 703-3 acting on the linear guide slider. Theoretically, the first driving cylinder 703-1 is no longer subjected to force. With the help of the dead point principle of the connecting rod mechanism, the stability of the loading and unloading process of the shrinking machine 800 by the clamping mechanism 704 is greatly improved, and the risks caused by failures such as gas line breakage are greatly reduced.

[0080] Please refer to Figure 2 , Fig. 9 and Fig.10The lifting unit 400 includes multiple groups of lifting mechanisms 410, which are respectively arranged on multiple groups of feeding and dividing mechanisms 310 in a one-to-one correspondence. Each group of lifting mechanisms 410 includes a box body 401, a first lifting plate 402, a second lifting plate 403, a first ring chain 404 and a sprocket assembly 405.

[0081] The box body 401 is slidably connected to a primary lifting plate 402, the primary lifting plate 402 is slidably connected to a secondary lifting plate 403, and the top of the secondary lifting plate 403 is provided with an L-shaped pipe supporting portion 403-1.

[0082] A driving motor is fixed to the side of the box body 401, and a rack is provided on the side of the first-level lifting plate 402. The driving motor meshes with the rack through the driving gear, thereby driving the first-level lifting plate 402 to move back and forth up and down. A sprocket assembly 405 is provided at the upper and lower ends of the first-level lifting plate 402, and a first ring chain 404 is wound around the sprocket assembly 405. The first ring chain 404 is provided with a first connecting block 406 and a second connecting block 407. The first connecting block 406 is fixed to the box body 401, and the second connecting block 407 is fixed to the second-level lifting plate 403.

[0083] Specifically, the lifting unit 400 includes 6 sets of lifting mechanisms 410. The end of the output shaft of the driving motor is connected to a driving gear, which is meshed with a rack provided on the side of the primary lifting plate 402. The front and rear sides of the primary lifting plate 402 are connected to the box body 401 and the secondary lifting plate 403 respectively through linear guide rails.

[0084] When the driving gear drives the primary lifting plate 402 to rise through the rack, the upper sprocket assembly 405 rises. At this time, the first connecting block 406 is fixed, and the secondary lifting plate 403 fixedly connected to the second connecting block 407 rises at twice the speed of the primary lifting plate 402, and the rising distance of the secondary lifting plate 403 is also twice that of the primary lifting plate 402. Similarly, when the driving gear drives the primary lifting plate 402 to descend through the rack, the secondary lifting plate 403 also descends at a speed and displacement twice that of the primary lifting plate 402. The driving motor adopts a servo motor, which has smooth lifting and high precision, and can stop at any height.

[0085] Please refer to Figure 2 , Figure 3 and Fig.11 The fully automatic feeding device of the laser tube cutting machine of this embodiment further includes a fixed length unit 500, which includes a servo motor 501, a synchronous belt 502, a pusher assembly 503, a support 504, and a fixed length limit plate 505 fixed to the front side of the frame 100. 。The support 504 is fixed on the frame 100 along the front-back direction, and the servo motor 501 is fixed on one end of the support 504, and the other end is slidably connected to the material pushing assembly 503. The servo motor 501 is connected to the material pushing assembly 503 through the synchronous belt 502, and the material pushing part of the material pushing assembly 503 is located at the rear end of the L-shaped pipe support part 403-1.

[0086] Specifically, the fixed-length unit 500 is fixed on the frame 100 and close to the lifting unit 400. The height of the pushing assembly 503 is consistent with the lifting height package of the lifting unit 400. In this way, the pushing assembly, driven by the servo motor 501, can push the shrunken pipe to the fixed-length limit plate 505, and then accurately obtain the actual length of the pipe, which is convenient for the subsequent laser pipe cutting machine 900 to accurately cut the pipe.

[0087] Please refer to Figure 1 , Figure 2 and Fig.12 The robot unit 600 includes a plurality of robot mechanisms 610 , and the plurality of robot mechanisms 610 are respectively arranged corresponding to the plurality of lifting mechanisms 410 .

[0088] Each set of robot mechanisms 610 includes a robot arm body 601 , which is slidably connected to the base 305 along the left and right directions. A clamp mechanism 602 is provided on the top of the robot arm body 601 , a clutch mechanism 603 is provided on the bottom, and a second ring chain 604 is provided on the base 305 .

[0089] The clamping mechanism 602 can clamp the pipe above the L-shaped pipe support part 403-1. The second ring chain 604 is equipped with a driving device. The second ring chain 604 can dynamically connect or disconnect the clutch mechanism 603. The clutch mechanism 603 can drive the robot arm body 601 and the clamping mechanism 602 to move back and forth in the left and right directions between the lifting unit 400 and the laser pipe cutting machine 900.

[0090] Specifically, the robot unit 600 includes 6 groups of robot mechanisms 610, the robot arm body 601 is set on the linear guide rail on the side of the base 305, and can perform left and right translational movement. The clamp mechanism 602 is driven by a cylinder, and the upper and lower jaws are automatically centered and clamped through a connecting rod mechanism.

[0091] Please refer to Figure 3 The fully automatic loading device of the laser tube cutting machine of this embodiment further includes a front header plate 206 located at the front end of the storage unit 200 and a rear header plate 207 located at the rear end of the storage unit 200. Specifically, the front header plate 206 and the rear header plate 207 can perform a preliminary end alignment of the tube to be processed, so that the loading process is smoother.

[0092] The specific working process of the fully automatic feeding device of the laser tube cutting machine of this embodiment is as follows:

[0093] After the whole equipment is installed, the pipe to be processed is placed in the U-shaped material warehouse formed by the material belt 202, and the material belt bracket 201 supports the U-shaped material warehouse. Next, the coiling motor 205 starts to work, and the coiling motor 205 drives the coiling shaft 204 to rotate, and the coiling shaft 204 drives the fixed coiling wheel 203 thereon to rotate, and the material belt 202 wound on the coiling wheel 203 begins to tighten. As the coiling wheel 205 continues to work, the material belt 202 continues to shrink, and the pipe to be processed is rolled up to the feeding and dividing mechanism 310. Simultaneously, the blocking mechanism 301 rises to block the rolled pipe to be processed. Then, the kicking assembly 301-1 on the blocking mechanism 301 extends out to push the excess pipe to be processed back to the U-shaped material warehouse. At this time, a pipe is just stuck between the protrusion 301-2 and the kicking assembly 301-1. After that, the coiling motor 205 reverses and drives the U-shaped material storage to return to its original position. Next, the kicking assembly 301-1 is retracted, and the material blocking mechanism 301 begins to descend. When it descends to a certain position, the stuck pipe will roll to the left along the smooth strip 306 until it is buffered and blocked by the rotating and raised buffer mechanism 302. After being blocked, the supporting mechanism 303 lifts the pipe. The driving mechanism 702 on the feeding unit 700 drives the lifting mechanism 703 and the clamping mechanism 704 to move forward along the frame 701 to the supporting mechanism 303. At this time, the first driving cylinder 730-1 pushes the hinge seat 703-2 to move forward, the hinge seat 703-2 drives the connecting rod 703-3 to swing, the connecting rod 703-3 drives the rotating shaft 703-4 to make a curved motion, the rotating shaft 703-4 drives the swing rod 703-5 to swing back and forth, and the upper end of the swing rod 703-5 drives the clamping claw base 704-4 to achieve lifting and lowering motion. The second driving cylinder 704-1 on the clamping jaw base 704-4 pushes the clamping jaw 704-3; the clamping jaw 704-3 automatically centers and clamps the pipe lifted by the supporting mechanism 303 under the action of the transmission connecting rod 704-2. After clamping, the pipe moves to the rear shrinking machine 800 under the drive of the driving mechanism 702. After the shrinking process is completed at the shrinking machine 800, the shrinking pipe moves forward and returns to the supporting mechanism 303 under the drive of the driving mechanism 702. At this time, the lifting mechanism 703 descends, driving the clamping jaw mechanism 704 to descend, and the pipe is placed on the supporting mechanism 303. Subsequently, the supporting mechanism 303 descends, and the buffer mechanism 302 rotates to release the pipe, and the pipe rolls along the smooth strip 306 to the material distribution mechanism 304. The material distribution mechanism 304 delivers the pipe to the L-shaped pipe support part 403-1 of the lifting unit 400.At this time, the first lifting plate 402 rises under the action of the driving gear, and the sprocket assembly 405 drives the first ring chain 404 to rotate. At this time, since the first connecting block 406 is fixed to the box body 401, the first ring chain 404 drives the second connecting block 407 to move upward, and the second connecting block 407 drives the second lifting plate 403 to move upward, and the L-shaped pipe support part 403-1 located above the second lifting plate 403 will lift the pipe. After lifting into place, the servo motor 501 drives the pushing assembly 503 through the synchronous belt 502 to push the pipe forward to the fixed length limit plate 505, and then the accurate length of the pipe is obtained. Afterwards, the clutch mechanism 603 in the robot unit 600 is connected to the second ring chain 604 by power, and then drives the robot arm body 601 to move to the left until the clamping mechanism 602 on the robot arm body 601 just clamps the pipe after the fixed length is completed. After the clamping is reliable, the robot arm body 601 continues to move to the left and sends the pipe to the laser pipe cutting machine 900. The laser pipe cutting machine 900 will cut the fixed-length pipe according to the fixed length amount.

[0094] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0095] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0096] In the present invention, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0097] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may alter, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A fully automatic feeding device for a laser tube cutting machine, characterized in that: It comprises a frame (100), a material storage unit (200), a material feeding and dividing unit (300), a material lifting unit (400), a manipulator unit (600), a material feeding unit (700) and a necking machine (800); A laser tube cutting machine (900) is arranged on the left side of the frame (100), the necking machine (800) is arranged on the rear side of the frame (100), the material storage unit (200) is arranged on the right side of the frame (100), and the feeding and distributing unit (300), the feeding unit (700) and the lifting unit (400) connected to the material storage unit (200) are fixedly arranged above the frame (100) from right to left, and the manipulator unit (600) is slidably connected to the feeding and distributing unit (300) along the left-right direction of the frame (100); The storage unit (200) is used to store pipes to be processed, the feeding and dividing unit (300) is used to receive the pipes transported by the storage unit (200) and to carry out material support and material distribution, the feeding unit (700) is used to deliver the pipes lifted by the feeding and dividing unit (300) to the shrinking machine (800) for shrinking, and the pipes after shrinking are transported to the lifting unit (400) for lifting after being processed by the feeding and dividing unit (300). The lifted pipes are delivered to the laser pipe cutting machine (900) for cutting via the robot unit (600).

2. The fully automatic feeding device of the laser tube cutting machine according to claim 1, characterized in that: The material storage unit (200) comprises at least two groups of material storage mechanisms (210), each group of the material storage mechanisms (210) comprises a material tape support (201), a material tape (202) and a winding wheel (203), the winding wheels (203) of the plurality of groups of the material storage mechanisms (210) are fixedly connected to a winding shaft (204), the winding shaft (204) is rotatably connected to the frame (100) and driven by a winding motor (205) fixed to the frame (100); In each group of the material storage mechanism (210), one end of the material strip (202) is fixed to the material strip support (201), and the other end is fixed to the winding wheel (203), and the middle part of the material strip (202) forms a U-shaped material storage with an opening upward, and the U-shaped material storage is used to place the pipe to be processed.

3. The fully automatic feeding device of the laser tube cutting machine according to claim 2, characterized in that: The feeding and distributing unit (300) comprises a plurality of groups of feeding and distributing mechanisms (310), and the plurality of groups of feeding and distributing mechanisms (310) are respectively arranged on the plurality of groups of storage mechanisms (210) in a one-to-one correspondence; Each group of the material feeding and distributing mechanisms (310) comprises a material blocking mechanism (301), a buffer mechanism (302), a material supporting mechanism (303), a material distributing mechanism (304) and a base (305); The base (305) is fixed above the frame (100), the material blocking mechanism (301) is connected to the base (305) in a liftable manner, the top of the material blocking mechanism (301) is provided with a retractable kicking assembly (301-1), the middle of the material blocking mechanism (301) is provided with a protruding portion (301-2), the distance between the extended kicking assembly (301-1) and the protruding portion (301-2) is the diameter length of a pipe, and the distance between the edge of the raised material blocking mechanism (301) and the edge of the U-shaped material storage is the diameter length of a pipe; A smooth bar (306) is arranged on the top of the base 305, and the buffer mechanism (302) and the supporting mechanism (303) are arranged on both sides of the smooth bar (306) relatively. The buffer mechanism (302) is rotatably connected to the base (305), and the buffer mechanism (302) is used to buffer the pipe separated by the blocking mechanism (301). The supporting mechanism (303) is connected to the base (305) in a liftable manner. The supporting mechanism (303) ) is provided with a clamping portion at the top thereof, the supporting mechanism (303) is used for clamping and lifting the pipe blocked by the buffer mechanism (302), the area between the material distribution mechanism (304) and the buffer mechanism (302) is a buffer zone, the smooth strip (306) is provided in the buffer zone, the material distribution mechanism (304) is liftably connected to the base (305), and the material distribution mechanism (304) is used for delivering the pipe in the buffer zone to the lifting unit (400).

4. The fully automatic feeding device of the laser tube cutting machine according to claim 3, characterized in that: The feeding unit (700) comprises a frame (701), a driving mechanism (702), a lifting mechanism (703) and a clamping mechanism (704); The frame (701) is fixed above the frame (100), and the length direction of the frame (701) is parallel to the front-to-back direction of the frame (100). The driving mechanism (702) is arranged at one end of the frame (701). The upper surface of the frame (701) is slidably connected to the lifting mechanism (703) along the front-to-back direction of the frame (100). The driving mechanism (702) and the lifting mechanism (703) are driven and connected by a chain transmission. The clamping mechanism (704) is arranged at the top of the lifting mechanism (703).

5. The fully automatic feeding device of the laser tube cutting machine according to claim 4, characterized in that: The lifting mechanism (703) comprises a first driving cylinder (703-1), a hinge seat (703-2), a connecting rod (703-3), a rotating shaft (703-4), a swing arm (703-5), a base (703-6) and a limiting member (703-7); The clamping mechanism (704) comprises a second driving cylinder (704-1), a connecting rod mechanism (704-2), a pair of clamping jaws (704-3) and a clamping jaw base (704-4); The base (703-6) is slidably arranged on the frame (701) along the front-back direction, the upper surface of the base (703-6) is hinged to the lower end of the swing rod (703-5), the upper end of the swing rod (703-5) is hinged to the clamping claw base (704-4), the front end of the base (703-6) is provided with the limiting member (703-7), the rear end of the base (703-6) is provided with the first driving cylinder (703-1), and the first The piston rod end of a driving cylinder (703-1) is connected to the hinge seat (703-2), the lower surface of the hinge seat (703-2) is slidably connected to the base (703-6), the upper surface of the hinge seat (703-2) is hinged to one end of the connecting rod (703-3), the other end of the connecting rod (703-3) is hinged to the rotating shaft (703-4), and both ends of the rotating shaft (703-4) are connected to the middle part of the swing rod (703-5); A second driving cylinder (704-1) is provided at one end of the clamping jaw base (704-4), and a pair of clamping jaws (704-3) are slidably provided at the other end of the clamping jaw base (704-4) to the left and right, the output end of the second driving cylinder (704-1) is connected to a first group of clamping jaws in the pair of the clamping jaws (704-3), the first group of clamping jaws is connected to a second group of clamping jaws in the pair of the clamping jaws (704-3) through the connecting rod mechanism (704-2), and the first group of clamping jaws and the second group of clamping jaws are provided with contoured wear-resistant blocks (704-5).

6. The fully automatic feeding device of the laser tube cutting machine according to claim 5, characterized in that: When the connecting rod (703-3) and the rocker arm (703-5) are parallel to each other, the clamping center axis of the clamping part of the supporting mechanism (303) is colinear with the center axis of the feed port of the necking machine (800), and the hinge center of the hinge seat (703-2) and the connecting rod (703-3) does not coincide with the hinge center of the rocker arm (703-5) and the base (703-6).

7. The fully automatic feeding device of the laser tube cutting machine according to claim 3, characterized in that: The material lifting unit (400) comprises a plurality of groups of material lifting mechanisms (410), and the plurality of groups of material lifting mechanisms (410) are respectively arranged on the plurality of groups of material feeding and dividing mechanisms (310) in a one-to-one correspondence; Each group of the lifting mechanism (410) comprises a box body (401), a primary lifting plate (402), a secondary lifting plate (403), a first ring chain (404) and a sprocket assembly (405); The box body (401) is slidably connected to the primary lifting plate (402), the primary lifting plate (402) is slidably connected to the secondary lifting plate (403), and the top of the secondary lifting plate (403) is provided with an L-shaped pipe support portion (403-1); A driving motor is fixed on the side of the box body (401), and a rack is arranged on the side of the first-level lifting plate (402). The driving motor meshes with the rack through a driving gear, thereby driving the first-level lifting plate (402) to move reciprocatingly up and down. The sprocket assembly (405) is arranged at the upper and lower ends of the middle position of the first-level lifting plate (402), and the first ring chain (404) is wound around the sprocket assembly (405). The first ring chain (404) is provided with a first connecting block (406) and a second connecting block (407), the first connecting block (406) is fixed to the box body (401), and the second connecting block (407) is fixed to the second-level lifting plate (403).

8. The fully automatic feeding device of the laser tube cutting machine according to claim 7, characterized in that: The machine also comprises a fixed-length unit (500), the fixed-length unit (500) comprising a servo motor (501), a synchronous belt (502), a material pushing assembly (503), a support (504) and a fixed-length limit plate (505) fixed to the front side of the frame (100), the support (504) being fixed to the frame (100) in the front-to-back direction, one end of the support (504) being fixed to the servo motor (501), and the other end being slidably connected to the material pushing assembly (503) in the front-to-back direction; The servo motor (501) is connected to the pushing assembly (503) through the synchronous belt (502), and the pushing portion of the pushing assembly (503) is located at the rear end of the L-shaped pipe supporting portion (403-1).

9. The fully automatic feeding device of the laser tube cutting machine according to claim 7, characterized in that: The robot unit (600) includes a plurality of robot mechanisms (610), and the plurality of robot mechanisms (610) are respectively arranged in one-to-one correspondence with the plurality of lifting mechanisms (410); Each group of the manipulator mechanisms (610) comprises a manipulator body (601), the manipulator body (601) is slidably connected to the base (305) along the left-right direction, a clamp mechanism (602) is provided on the top of the manipulator body (601), a clutch mechanism (603) is provided on the bottom, and a second ring chain (604) is provided on the base (305); The clamping mechanism (602) is capable of clamping the pipe above the L-shaped pipe support portion (403-1), and the second ring chain (604) is equipped with a driving device. The second ring chain (604) is capable of dynamically connecting or disconnecting the clutch mechanism (603), and the clutch mechanism (603) is capable of driving the robot arm body (601) and the clamping mechanism (602) to move back and forth in the left and right directions between the lifting unit (400) and the laser pipe cutting machine (900).

10. The fully automatic feeding device of the laser tube cutting machine according to claim 1, characterized in that: It also includes a front header plate (206) located at the front end of the material storage unit (200) and a rear header plate (207) located at the rear end of the material storage unit (200).

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