Loading device of laser cutting machine

Abstract

The present invention discloses a feeding device for a laser cutting machine, which can realize the synchronous movement of the clamping manipulator and accurately send pipes one by one to the laser cutting machine. The bottom frame is provided with an inclined surface for supporting the pipes and a horizontal surface connected to the lowest point of the inclined surface; the clamping manipulators are arranged at intervals in the left-right direction and connected to the bottom frame and can move back and forth. The rear side surface of the clamping manipulator is located above the horizontal surface to block the pipes, and the first rack is horizontally arranged on the clamping manipulator; the driving device includes a driving shaft, a first gear meshing with the first rack, and a motor connected to the driving shaft. The driving shaft is connected to the bottom frame and can rotate along the left-right axis, and the first gear is connected to the driving shaft; the lifting mechanisms are arranged at intervals in the left-right direction. The lifting mechanism includes a material supporting plate that can move up and down. The material supporting plate is provided with a material supporting top surface for supporting the pipes. The front-back distance between the rear side surface of the material supporting plate and the rear side surface of the clamping manipulator is between the pipe radius and three times the radius; the driving mechanism is connected to the lifting mechanism to move the lifting mechanism back and forth.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe processing equipment, and particularly relates to a feeding device for a laser cutting machine. Background Art

[0002] In the pipe cutting process, workers often use a laser cutting machine to cut long pipes into shorter pipes according to production requirements. During the operation of the laser cutting machine, a movable chuck drives the pipe to move to the laser cutting head, and by using the principle of laser cutting, multiple pipes can be cut, and the cutting end faces are flat and intact.

[0003] However, in actual operation, an artificial method is often adopted to place pipes one by one on the movable chuck, and the chuck clamps the pipes to complete the feeding work of the laser cutting machine. However, this method has low efficiency, and the pipes are long and heavy, which is difficult for workers and poses certain potential safety hazards to personnel. With the development of automated production technology, how to accurately place pipes one by one on the chuck, and make the chuck move horizontally towards the pipe direction, and the chuck fixture can firmly clamp the pipes to complete the automatic feeding of the laser cutting machine has become a major research topic at present. Summary of the Invention

[0004] The purpose of the present invention is to provide a feeding device for a laser cutting machine to solve one or more technical problems in the prior art, and at least provide a beneficial choice or creation condition.

[0005] The technical solutions adopted to solve the above technical problems are as follows:

[0006] The present invention provides a feeding device for a laser cutting machine, and the feeding device includes:

[0007] A chassis, which is provided with an inclined surface and a horizontal surface for supporting the pipe, the horizontal surface is located in front of the inclined surface, and the horizontal surface is connected to the lowest point of the inclined surface;

[0008] A clamping manipulator, which is connected to the chassis and can move back and forth relative to the chassis. The clamping manipulators are arranged at intervals along the length direction of the pipe. The clamping manipulator includes a first clamping block and a second clamping block for clamping the pipe. The first clamping block and the second clamping block are arranged vertically opposite to each other, and both the first clamping block and the second clamping block can move up and down. The rear side surface of the clamping manipulator is located above the horizontal surface to block the pipe, and the clamping manipulator is provided with a horizontal first rack;

[0009] A driving device, which includes a driving shaft, a first gear and a motor. The driving shaft is connected to the chassis, and the driving shaft can rotate along its left - right horizontal axis. The first gear is correspondingly arranged and meshed with a first rack, and all the first gears are connected to the driving shaft. The motor is in transmission connection with the driving shaft;

[0010] Lifting mechanisms, which are arranged at intervals along the length direction of the pipe. The lifting mechanism includes a material - supporting plate that can move up and down. The material - supporting plate is provided with a material - supporting top surface for supporting the pipe. The front - to - back distance between the rear side surface of the material - supporting plate and the rear side surface of the clamping manipulator is within the range of the radius of the pipe to three times the radius of the pipe;

[0011] A driving mechanism, which is connected to the lifting mechanism to drive the lifting mechanism to move back and forth.

[0012] The present invention has at least the following beneficial effects: An inclined surface and a horizontal surface are provided on the chassis. Multiple pipes are placed on the inclined surface, and due to gravity, the pipes can move to the horizontal surface one by one. The clamping manipulators arranged at intervals along the length direction of the pipe, through the first clamping block and the second clamping block that can move up and down, always keep the center line position of the pipe unchanged during the pipe lifting and clamping operations. Moreover, by using the method of driving multiple first racks to move horizontally with one driving shaft, the synchronous movement of the clamping manipulators is realized, ensuring that when the clamping manipulators send the pipe to the laser cutting machine, the axis of the pipe extends horizontally left - right, avoiding the front - to - back inconsistency at both ends of the pipe. Thus, it is beneficial for the clamping manipulators to clamp the pipe and horizontally send it to the chuck of the laser cutting machine, without the need to adjust the height position and the front - to - back position of the pipe, facilitating the movement of the chuck towards the pipe and clamping the pipe, and sending it to the laser cutting head, ultimately realizing the high - precision feeding of the pipe.

[0013] In addition, the clamping manipulators can also cooperate with the lifting mechanism to play a role in positioning the pipe to complete the lifting work of each pipe. The lifting mechanism is provided with a material - supporting plate that can move up and down, and the front - to - back distance between the rear side surface of the material - supporting plate and the rear side surface of the clamping manipulator is set within the range of the radius of the pipe to three times the radius of the pipe. Thus, when the material - supporting plate moves upward, it can only lift one pipe, and a driving mechanism is set to drive the lifting mechanism to move forward with the pipe, enabling the pipe to cross over the clamping manipulator, thereby facilitating the forward movement of the clamping manipulator. Through the cooperation of the first clamping block and the second clamping block, the pipes are accurately sent to the laser cutting machine one by one.

[0014] As a further improvement of the above - mentioned technical solution, the material - supporting top surface is V - shaped; The feeding device further includes:

[0015] A blocking rod, which is arranged vertically. The blocking rod is arranged above the horizontal surface to block the pipe;

[0016] The first telescopic cylinder, whose fixed end is connected to the chassis, and the telescopic end of the first telescopic cylinder is connected to the blocking rod to drive the blocking rod to move up and down.

[0017] The material supporting plate is provided with a V-shaped material supporting top surface, which can not only keep the round tube stable during the lifting process to prevent the pipe material from falling off the material supporting plate, but also position the pipe material, facilitating the clamping manipulator to accurately clamp the pipe material. The setting of the blocking rod has a blocking effect on the round tube when the clamping manipulator horizontally delivers the pipe material to the laser cutting machine, effectively preventing the round tube from moving forward too much on the horizontal plane and falling to the ground. The first telescopic cylinder is set to drive the blocking rod to move up and down. When the clamping manipulator clamps the pipe material and moves forward, it can avoid the blocking rod from affecting the clamped pipe material.

[0018] As a further improvement of the above technical solution, the clamping manipulator further includes:

[0019] A support, which is connected to the chassis and can move back and forth, and the first clamping block and the second clamping block are respectively connected to the support;

[0020] An upper rack, which is vertically arranged and connected to the first clamping block;

[0021] A lower rack, which is vertically arranged and connected to the second clamping block, and the lower rack is arranged opposite to the upper rack left and right;

[0022] A transmission gear, which is connected to the support and can rotate around its front and rear horizontal axis, and the transmission gear is respectively meshed and connected to the upper rack and the lower rack;

[0023] A second telescopic cylinder, whose fixed end is connected to the support, and the telescopic end of the second telescopic cylinder is connected to the first clamping block or the second clamping block.

[0024] The support is set to play a certain supporting role for the first clamping block and the second clamping block, and enables the first clamping block and the second clamping block to only move up and down. The upper rack is arranged on the first clamping block, the lower rack is arranged on the second clamping block, and a transmission gear is arranged on the support. The transmission gear is respectively meshed and connected to the upper rack and the lower rack. And, by adopting the left and right arrangement of the upper rack and the lower rack, it is promoted that the first clamping block and the second clamping block can move synchronously and can approach or move away from each other, so as to stably clamp the pipe material by the first clamping block and the second clamping block while keeping the center line position of the pipe material unchanged. The second telescopic cylinder provides driving force to make one of the first clamping block and the second clamping block move in the up and down direction, so that the clamping manipulator can clamp or release the pipe material, which has the advantages of compact structure and low energy consumption.

[0025] As a further improvement of the above technical solution, the lifting mechanism further includes:

[0026] A moving seat, which is connected to the driving mechanism;

[0027] A lifting seat, which is connected to the moving seat. The lifting seat can move up and down relative to the moving seat, and the material supporting plate is connected to the top of the lifting seat;

[0028] A third telescopic cylinder, whose fixed end is connected to the moving seat, and the telescopic end of the third telescopic cylinder is connected to the lifting seat.

[0029] The material supporting plate is arranged on the lifting seat. When the third telescopic cylinder drives the lifting seat to move up and down, the material supporting plate can move up and down together with the lifting seat, with a rapid and stable movement speed. The moving seat is set and connected to the driving mechanism, so that the driving mechanism drives the moving seat to move back and forth, and the lifting seat is connected to the moving seat, enabling the lifting seat to move back and forth together with the moving seat.

[0030] As a further improvement of the above technical solution, the loading device further includes:

[0031] A transmission shaft, which is connected to all the moving seats, and the transmission shaft can rotate around the left-right horizontal axis;

[0032] A second gear, which is connected to the transmission shaft;

[0033] A second rack, which is connected to the lifting seat. The second rack is arranged vertically, and the second rack is meshed and connected to the second gear.

[0034] A vertically arranged second rack is set on the lifting seat, a transmission shaft is arranged between the moving seats, and a second gear located on the transmission shaft is set corresponding to the second rack. When the third telescopic cylinder drives the lifting seat to move up and down, by the meshing action of the second gear and the second rack, all the lifting seats can be lifted synchronously, enabling the material supporting plate to stably lift the pipe, ensuring that the pipe always remains horizontal, avoiding the two ends of the pipe from being uneven, so as to realize that the clamping manipulator accurately sends the pipe to the laser cutting machine in a horizontal state and complete the precise loading of the laser cutting machine.

[0035] As a further improvement of the above technical solution, the loading device further includes a positioning plate; the positioning plate is connected to the chassis, the positioning plate is arranged vertically, and the positioning plate is located on the left or right side of the inclined surface. The positioning plate is set on the left or right side of the chassis. By the end face of the pipe being in contact with the positioning plate, the positioning work of the pipe in the left-right direction is completed, so that it is convenient for the chuck to automatically move a set distance after the clamping manipulator sends the pipe to the laser cutting machine and then effectively clamp the pipe, without manual control of the movement of the chuck, realizing a high degree of automation of the pipe cutting process.

[0036] As a further improvement of the above technical solution, the driving mechanism includes:

[0037] The mounting base, which is connected to the chassis;

[0038] The second guide rail, which is connected to the mounting base, and both ends of the second guide rail are arranged in the front - rear direction;

[0039] The second slider, which is connected to the second guide rail, and the second slider is connected to the moving seat;

[0040] The fourth telescopic cylinder, whose fixed end is connected to the mounting base, and the telescopic end of the fourth telescopic cylinder is connected to the moving seat.

[0041] The mounting base provides a fixing function for the second guide rail and the fourth telescopic cylinder, ensuring the normal movement of the second slider and the fourth telescopic cylinder. The combination of the second guide rail and the second slider enables the moving seat to move more smoothly. The telescopic end of the fourth telescopic cylinder is connected to the moving seat, prompting the moving seat to move more quickly under the drive of the fourth telescopic cylinder, improving efficiency.

[0042] As a further improvement of the above - mentioned technical solution, the moving seat is provided with a third guide rail which is vertically arranged; the lifting seat is provided with a third slider which is connected to the third guide rail. By setting the third guide rail and the third slider between the moving seat and the lifting seat, and using the fact that the third slider can move smoothly along the third guide rail, the lifting seat can be quickly lifted and lowered relative to the moving seat, preventing the lifting seat from shaking violently during movement and causing the pipe to fall off the supporting plate.

[0043] As a further improvement of the above - mentioned technical solution, the chassis is provided with a horizontal fourth guide rail, and the clamping manipulator is provided with a fourth slider which is connected to the fourth guide rail and can move back and forth along the fourth guide rail. Through the cooperation of the fourth slider and the fourth guide rail, the clamping manipulator can move quickly and smoothly back and forth relative to the chassis, and the movement is very smooth without shaking, which helps to accurately send the pipe to the laser cutting machine.

[0044] As a further improvement of the above - mentioned technical solution, the chassis is provided with multiple support rods and multiple support plates; the multiple support rods are arranged at intervals from left to right, and both ends of the support rods are arranged in the front - rear direction and are inclined to form the inclined plane; the multiple support plates are arranged at intervals from left to right to form the horizontal plane. Using multiple support rods to form the inclined plane and multiple support plates to form the horizontal plane can not only save materials, but also reduce the contact area between the pipe and the inclined plane and the horizontal plane, thereby reducing the friction force and making it easier for the pipe to move from the inclined plane to the horizontal plane. Brief Description of the Drawings

[0045] The following further describes the present invention in conjunction with the drawings and embodiments;

[0046] Figure 1 It is a three-dimensional structure diagram of an embodiment in the loading device of the laser cutting machine provided by the present invention;

[0047] Figure 2 is Figure 1 the right view of;

[0048] Figure 3 It is a three-dimensional structure diagram of an embodiment of the loading device of the laser cutting machine provided by the present invention from another perspective;

[0049] Figure 4 It is a three-dimensional structure diagram of the connection between the clamping manipulator and the support plate in the loading device of the laser cutting machine provided by the present invention;

[0050] Figure 5 It is an exploded view of the connection between the clamping manipulator and the support plate in the loading device of the laser cutting machine provided by the present invention;

[0051] Figure 6 It is a three-dimensional structure diagram of the clamping manipulator in the loading device of the laser cutting machine provided by the present invention;

[0052] Figure 7 It is a three-dimensional structure diagram of the clamping manipulator in the loading device of the laser cutting machine provided by the present invention from another perspective;

[0053] Figure 8 It is a three-dimensional structure diagram of the connection between the lifting mechanism, the driving mechanism and the transmission shaft in the loading device of the laser cutting machine provided by the present invention;

[0054] Figure 9 It is a top view of the connection between the lifting mechanism and the driving mechanism in the loading device of the laser cutting machine provided by the present invention;

[0055] Figure 10 It is a three-dimensional structure diagram of the lifting mechanism in the loading device of the laser cutting machine provided by the present invention;

[0056] Figure 11 is Figure 10 the right view of;

[0057] Figure 12 is Figure 10 the front view of.

[0058] The reference signs in the drawings are as follows:

[0059] 100, chassis; 110, support rod; 120, support plate; 121, first shaft mounting hole; 122, inclined surface; 130, positioning plate; 140, first telescopic cylinder;

[0060] 200, Clamping manipulator; 210, First clamping block; 211, Upper rack; 212, Upper slider; 220, Second clamping block; 221, Lower rack; 222, Lower slider; 240, First guide rail; 250, Transmission gear; 260, Support; 261, Through hole; 270, Second telescopic cylinder; 280, Connecting block;

[0061] 300, Lifting mechanism; 310, Material supporting plate; 320, Third telescopic cylinder; 330, Third guide rail; 340, Moving seat; 341, Second shaft mounting hole; 350, Lifting seat; 360, Third slider;

[0062] 400, Pipe;

[0063] 500, Driving mechanism; 510, Fourth telescopic cylinder; 520, Second guide rail; 530, Second slider; 540, Mounting seat;

[0064] 600, Transmission shaft; 610, Second gear; 620, Second rack;

[0065] 700, Motor; 710, Driving gear; 720, First gear; 730, Driving shaft;

[0066] 810, Fourth slider; 820, Fourth guide rail; 830, First rack. Detailed implementation manners

[0067] This part will describe the specific embodiments of the present invention in detail. The preferred embodiments of the present invention are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention. However, it should not be construed as a limitation on the protection scope of the present invention.

[0068] In the description of the present invention, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the present invention.

[0069] In the description of the present invention, if there are descriptions with words such as "several", its meaning is one or more, and the meaning of multiple is more than two. Understanding greater than, less than, exceeding, etc. does not include the present number, and understanding above, below, within, etc. includes the present number. If there are descriptions of first, second, third, etc., it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0070] It should be noted that in the attached drawings, the X direction is from the rear side to the front side of the loading device of the laser cutting machine; the Y direction is from the left side to the right side of the loading device of the laser cutting machine; and the Z direction is from the lower side to the upper side of the loading device of the laser cutting machine.

[0071] In the description of the present invention, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0072] Referring to Figures 1 to 12 , several embodiments of the loading device of the laser cutting machine of the present invention are given below.

[0073] An embodiment of the present invention provides a loading device for a laser cutting machine, and the loading device includes: a chassis 100, a clamping manipulator 200, a driving device, a lifting mechanism 300, and a driving mechanism 500.

[0074] Among them, the chassis 100 can be made of a metal material. The chassis 100 is provided with an inclined surface and a horizontal surface for supporting the pipe 400. The horizontal surface is located in front of the inclined surface, and the horizontal surface is connected to the lowest point of the inclined surface. The inclination angle of the inclined surface is between 10° and 15°, and the surface smoothness of the inclined surface and the horizontal surface is set according to the actual situation. The clamping manipulator 200 can be arranged on the left and right sides of the horizontal surface to clamp both ends of the pipe 400.

[0075] The staff places multiple pipes 400 to be cut on the inclined surface, and the pipes 400 move to the horizontal surface by their own gravity. The pipes 400 are arranged in a row along the inclined surface. The pipes can be, but are not limited to, pipes with a square cross-sectional shape.

[0076] As a preferred embodiment, the chassis 100 is provided with multiple support rods 110 and multiple support plates 120. The support rods 110 and the support plates 120 can be fixed to the chassis 100 by welding or screw connection. The multiple support rods 110 are spaced and evenly arranged from left to right. The two ends of the support rods 110 are arranged front and back and are inclined to form the inclined surface, that is, the support rods 110 are higher at the rear end and lower at the front end. The multiple support plates 120 are spaced and evenly arranged from left to right to form the horizontal surface. From the cross-sectional view of the support rods 110, the top surface of the support rods 110 can be a flat surface or an arc-shaped top surface.

[0077] Adopting the above structural design can not only reduce the friction between the pipe 400 and the inclined surface and the horizontal surface respectively, but also facilitate the arrangement of the clamping manipulator 200 between adjacent support plates 120, so that a better clamping effect can be exerted on the pipe 400.

[0078] In this embodiment, a total of four support rods 110, four support plates 120, and four clamping manipulators 200 are provided, and the left - right spacing between the support plates 120, the support rods 110, and the clamping manipulators 200 can be set to be relatively small.

[0079] The clamping manipulator 200 is connected to the chassis 100 and can move back and forth relative to the chassis 100. The clamping manipulators 200 are arranged at intervals along the length direction of the pipe 400, that is, the left - right direction.

[0080] As Figures 4 to 7 shown, the clamping manipulator 200 includes a support 260, an upper rack 211, a lower rack 221, a transmission gear 250, a second telescopic cylinder 270, and a first clamping block 210 and a second clamping block 220 for clamping the pipe 400.

[0081] The support 260 is connected to the chassis 100 and can move back and forth. Specifically, the chassis 100 is provided with a horizontal fourth guide rail 820. The two ends of the fourth guide rail 820 are arranged front - to - back and are fixed to the side surface of the support plate 120 of the chassis 100 by screws. The support 260 of the clamping manipulator 200 is provided with a fourth slider 810, and the fourth slider 810 is fixed to the support 260 by screws. The fourth slider 810 is connected to the fourth guide rail 820 and can move back and forth along the fourth guide rail 820.

[0082] The first clamping block 210 and the second clamping block 220 are arranged vertically opposite to each other, and both the first clamping block 210 and the second clamping block 220 can move up and down. A buffer pad is arranged on the surface of the first clamping block 210 in contact with the pipe 400, and a buffer pad is arranged on the surface of the second clamping block 220 in contact with the pipe 400. The buffer pad can be a rubber pad.

[0083] The first clamping block 210 and the second clamping block 220 are respectively connected to the support 260. Specifically, the support 260 is provided with a vertical first guide rail 240. The first guide rail 240 is connected to the support 260 by screws, and two first guide rails 240 can be provided. The cross - sectional shape of the first guide rail 240 can be circular, T - shaped, or other shapes.

[0084] The first clamping block 210 is provided with an upper slider 212. The upper slider 212 is connected to the first clamping block 210 by screws. The upper slider 212 is slidably connected to the first guide rail 240, and the upper slider 212 can move up and down along the first guide rail 240.

[0085] The second clamping block 220 is provided with a lower slider 222. The lower slider 222 is connected to the second clamping block 220 by screws. The lower slider 222 is slidably connected to the first guide rail 240, and the lower slider 222 can move up and down along the first guide rail 240.

[0086] The upper rack 211 is vertically arranged, and the top end of the upper rack 211 is connected to the first clamping block 210 by screws.

[0087] The lower rack 221 is vertically arranged, the bottom end of the lower rack 221 is connected to the second clamping block 220 by screws, and the lower rack 221 and the upper rack 211 are arranged opposite to each other left and right.

[0088] The transmission gear 250 is connected to the support 260 and can rotate around its front and rear horizontal axis. Specifically, the support 260 is provided with a rotating shaft, and the transmission gear 250 is installed on the rotating shaft through bearings. The transmission gear 250 is respectively meshed and connected with the upper rack 211 and the lower rack 221.

[0089] The fixed end (i.e., the cylinder part) of the second telescopic cylinder 270 is connected to the support 260 by screws, and the telescopic end (i.e., the movable rod) of the second telescopic cylinder 270 is connected to the second clamping block 220. Specifically, the second telescopic cylinder 270 is arranged at the rear side of the first guide rail 240. The second clamping block 220 is provided with a connecting block 280. The telescopic end of the second telescopic cylinder 270 is fixed to the connecting block 280. The support 260 is provided with a through hole 261 to facilitate the connecting block 280 to move up and down when the second telescopic cylinder 270 works.

[0090] When the second telescopic cylinder 270 drives the second clamping block 220 to move upward, it can cause the lower rack 221 to rise. Through the power transmission of the transmission gear 250, the upper rack 211 can be made to descend, so that the first clamping block 210 and the second clamping block 220 approach each other to clamp the pipe 400.

[0091] When the second telescopic cylinder 270 drives the second clamping block 220 to move downward, it can cause the lower rack 221 to descend. Through the power transmission of the transmission gear 250, the upper rack 211 can be made to rise, so that the first clamping block 210 and the second clamping block 220 move away from each other, thus releasing the clamping of the pipe 400.

[0092] Of course, the telescopic end of the second telescopic cylinder 270 can also be connected to the first clamping block 210.

[0093] In addition, a motor can be used instead of the second telescopic cylinder 270 to drive the transmission gear 250 to rotate.

[0094] Such as Figure 1 、 Figures 3 to 5As shown, the clamping manipulator 200 is provided with a horizontal first rack 830, and the two ends of the first rack 830 are arranged front and back. The driving device includes a driving shaft 730, a first gear 720 and a motor 700. The driving shaft 730 is connected to the base frame 100 through a bearing seat, and the driving shaft 730 can rotate along its left and right horizontal axis. The first gear 720 is arranged one by one with the first rack 830 and is meshed and connected, and all the first gears 720 are connected to the driving shaft 730 by a key connection.

[0095] In this embodiment, the support plate 120 is provided with a first shaft mounting hole 121 so that the driving shaft 730 can pass through, thereby facilitating the driving shaft 730 to drive all the first gears 720 to rotate.

[0096] The motor 700 is connected to the drive shaft 730 in a transmission manner. The motor 700 is fixed on the chassis 100, and the output shaft of the motor 700 is provided with a driving gear 710, and the driving shaft 730 is correspondingly provided with a driven gear, and the driving gear 710 is meshed and connected with the driven gear. When the motor 700 is working, the driving shaft 730 rotates, driving all the first gears 720 to rotate, and through the connection between the first gear 720 and the first rack 830, all the clamping manipulators 200 are prompted to move forward or backward synchronously. Of course, the motor 700 can also be connected to the drive shaft 730 in a transmission manner through an axis connection.

[0097] The clamping robot 200 adopts the above-mentioned structural design, which has lower cost and less installation difficulty than the gantry setting method.

[0098] The driving mechanism 500 is connected to the lifting mechanism 300 to drive the lifting mechanism 300 to move forward and backward.

[0099] The lifting mechanism 300 is spaced and evenly arranged along the length direction (ie, left-right direction) of the pipe 400 , and the lifting mechanism 300 includes a supporting plate 310 that can move up and down, a moving seat 340 , a lifting seat 350 and a third telescopic cylinder 320 .

[0100] The moving seat 340 is connected to the driving mechanism 500 . When the driving mechanism 500 is working, the driving mechanism can drive the moving seat 340 to move forward and backward.

[0101] The lifting seat 350 is connected to the moving seat 340 , and the lifting seat 350 can move up and down relative to the moving seat 340 . The supporting plate 310 is fixed to the top of the lifting seat 350 by screws.

[0102] Specifically, the movable seat 340 is provided with a third guide rail 330 , and the third guide rail 330 is vertically arranged; the lifting seat 350 is provided with a third slider 360 , and the third slider 360 is slidably connected to the third guide rail 330 .

[0103] The fixed end of the third telescopic cylinder 320 is connected to the moving seat 340, and the telescopic end of the third telescopic cylinder 320 is connected to the lifting seat 350. When the telescopic end of the third telescopic cylinder 320 extends or retracts, the lifting seat 350 can be raised or lowered. The third telescopic cylinder 320 can be a single-axis cylinder.

[0104] Of course, a transmission method of a motor and a lead screw can also be adopted. When the motor drives the lead screw to rotate forward or backward, the lifting seat 350 threadedly connected to the lead screw is urged to rise or fall.

[0105] The material supporting plate 310 is provided with a material supporting top surface for supporting the pipe 400. The material supporting plate 310 can be made of materials such as plastic and rubber.

[0106] The rear side surface of the clamping manipulator 200 is located above the horizontal plane and can position the pipe 400. The front-rear distance between the rear side surface of the material supporting plate 310 and the rear side surface of the clamping manipulator 200 is within the numerical range of 1 to 3 times the radius of the pipe 400 (that is, the front-rear distance is greater than the radius of the pipe and less than 3 times the radius of the pipe). Therefore, only the center of gravity of one pipe 400 falls on the material supporting plate 310 and can thus be lifted by the material supporting plate 310. In this embodiment, the front-rear distance is set to 2 times the radius of the pipe.

[0107] With such a clever design, when the third telescopic cylinder 320 jacks up the material supporting plate 310, only one pipe 400 can be lifted, and under the action of the driving mechanism 500, the lifting mechanism 300 drives the pipe 400 to cross over the clamping manipulator 200, so that the clamping manipulator can send the pipes 400 to the laser cutting machine one by one.

[0108] The working process of this feeding device is as follows: Before clamping the pipe 400, the lifting mechanism 300 moves backward under the drive of the driving mechanism 500 and returns to the set position. Then, the clamping manipulator 200 moves backward relative to the chassis 100 and returns to the set position. At this time, the rear side surface of the clamping manipulator 200 is located in front of the rear side surface of the material supporting plate 310, and the front-rear distance between the rear side surface of the clamping manipulator 200 and the rear side surface of the material supporting plate 310 is the set diameter of the pipe.

[0109] When the pipe 400 moves from the inclined surface to the horizontal plane, since the clamping manipulator 200 returns to the set position, the rear side surface of the clamping manipulator 200 can contact the frontmost pipe located on the horizontal plane. At this time, the clamping manipulator 200 plays a positioning role, and then the lifting mechanism 300 works to cause the material supporting plate 310 to only lift the pipe 400 in contact with the clamping manipulator 200.

[0110] After the material supporting plate 310 lifts the pipe 400 higher than the clamping manipulator 200, the driving mechanism 500 drives the lifting mechanism 300 to move forward to the set position, that is, in front of the clamping manipulator 200; then, the material supporting plate 310 drives the pipe 400 to move down to the set height position.

[0111] Then, the clamping manipulator 200 moves forward to the set horizontal position. By the first clamping block 210 and the second clamping block 220 approaching each other, since the first clamping block 210 and the second clamping block 220 move synchronously and the moving distances are the same, it is prompted that the first clamping block 210 and the second clamping block 220 contact the surface of the pipe 400 at the same time, and then firmly clamp the pipe. At this time, the lifting mechanism 300 moves backward to the set position to prepare for lifting the next pipe.

[0112] Finally, the clamping manipulator 200 moves towards the laser cutting machine, horizontally sends the pipe to the chuck. After the chuck directly moves a certain distance, it directly clamps the pipe through its fixture, without the need to adjust the height position and the front and rear positions of the pipe, greatly improving the feeding accuracy. And, the chuck drives the pipe to move towards the laser cutting head to complete the laser cutting process of the pipe.

[0113] Since the adjacent pipes 400 are in contact with each other, after the pipe A is lifted, the subsequent pipe B moves due to the thrust exerted by the pipes behind it, replacing the position of its previous pipe A. After the clamping manipulator 200 moves backward in place, the pipe B will contact the clamping manipulator 200 and be lifted by the lifting mechanism 300, and the above work is continuously repeated in this way.

[0114] In some embodiments, the driving mechanism 500 includes: a mounting base 540, a second guide rail 520, a second slider 530, and a fourth telescopic cylinder 510.

[0115] Among them, the mounting base 540 is connected to the chassis 100 by screws. The second guide rail 520 is connected to the mounting base 540 by screws, and both ends of the second guide rail 520 are arranged along the front and rear directions. The second slider 530 is slidably connected to the second guide rail 520, and the second slider 530 is connected to the moving seat 340. In this way, the moving seat 340 can move smoothly forward or backward along the second guide rail 520. The fixed end of the fourth telescopic cylinder 510 is connected to the mounting base 540 by screws, and the telescopic end of the fourth telescopic cylinder 510 is connected to the moving seat 340. When the telescopic end of the fourth telescopic cylinder 510 makes an extending or shortening movement, the fourth telescopic cylinder 510 can drive the lifting mechanism 300 to move back and forth.

[0116] Of course, the driving mechanism 500 can also adopt the transmission mode of a motor and a lead screw. When the motor drives the lead screw to rotate forward or backward, the moving seat 340 threadedly connected to the lead screw is urged to move forward or backward. In addition, a linear module can also be used as the driving mechanism 500.

[0117] In some embodiments, the top surface of the material supporting plate is V-shaped, mainly for the feeding work of round tubes. With such a design, the pipe 400 can be kept stable during the lifting process to prevent the pipe 400 from falling off the material supporting plate 310, and the pipe 400 can also be positioned. At this time, the pipe 400 is located at the middle position of the top surface of the material supporting plate, and the round tube is supported by the two inclined surfaces of the material supporting plate 310. When the lifting mechanism 300 moves the round tube forward, the stability of the round tube can be ensured, so as to facilitate the clamping manipulator 200 to accurately clamp the pipe 400.

[0118] Moreover, the feeding device further includes: a blocking rod and a first telescopic cylinder 140.

[0119] The blocking rod is vertically arranged, and the blocking rod is arranged above the horizontal plane to block the pipe 400. A buffer pad made of rubber is arranged on the surface of the blocking rod in contact with the pipe 400, which can avoid damaging the surface of the pipe.

[0120] The fixed end of the first telescopic cylinder 140 is fixedly connected to the chassis 100, and the telescopic end of the first telescopic cylinder 140 is connected to the blocking rod to drive the blocking rod to move up and down.

[0121] Since the round tube is likely to fall off the horizontal plane due to rolling, a blocking rod is specifically provided to block the round tube when the clamping manipulator 200 horizontally sends the pipe 400 to the laser cutting machine, effectively preventing the round tube from moving forward too far on the horizontal plane and falling to the ground.

[0122] The first telescopic cylinder 140 is provided to drive the blocking rod to move up and down, which can avoid the blocking rod from affecting the clamped pipe when the clamping manipulator 200 clamps the pipe and moves forward.

[0123] In addition, the top surface of the support plate 120 includes a flat surface and an inclined surface 122, which are arranged in sequence from back to front. The round tube rolls from the inclined surface to the inclined surface 122 of the support plate 120 and contacts the blocking rod.

[0124] In some embodiments, as Figures 1 to 3 、 Figure 8 、 Figures 10 to 12 shown, the feeding device further includes: a transmission shaft 600, a second gear 610 and a second rack 620.

[0125] Among them, the transmission shaft 600 is connected to all the moving seats 340, and the transmission shaft 600 can rotate around the left - right horizontal axis (i.e., the axis extends along the left - right direction). The moving seat 340 is provided with a second shaft mounting hole 341 to facilitate the transmission shaft 600 to pass through, and is installed with a bearing seat, enabling the transmission shaft 600 to rotate around its axis. The transmission shaft 600 is a rigid shaft and is not easily deformed.

[0126] The second gear 610 is connected to the transmission shaft 600 by a key - connection method. When the transmission shaft 600 rotates, the second gear 610 can rotate synchronously therewith.

[0127] The second rack 620 is connected to the lifting seat 350 by a welding process or screws. The second rack 620 is vertically arranged. The second rack 620 is meshed and connected with the second gear 610.

[0128] Through the cooperation of the transmission shaft 600, the second gear 610 and the second rack 620, when the third telescopic cylinder 320 drives the lifting seat 350 to rise or fall, all the lifting seats 350 can rise and fall synchronously, prompting the material - supporting plate 310 to stably lift the pipe 400, ensuring that the pipe 400 always remains in a horizontal state, preventing the two ends of the pipe from showing height differences, which helps the clamping manipulator 200 to send the pipe 400 to the laser cutting machine in a horizontal state, thus realizing the precise loading of the laser cutting machine.

[0129] In some embodiments, as Figures 1 to 3 shown, the loading device further includes a positioning plate 130. The positioning plate 130 is provided with a connecting rod, and this connecting rod is connected to the chassis 100 by a welding method or a screw - connection method. The positioning plate 130 is vertically arranged. The positioning plate 130 is located on the left or right side of the inclined surface and can be in contact with the end face of the pipe 400.

[0130] By setting the positioning plate 130 on the left or right side of the chassis 100, through the fitting contact between the end face of the pipe 400 and the positioning plate 130, the positioning work of the pipe in the left - right direction is completed, so that after the clamping manipulator 200 sends the pipe 400 to the laser cutting machine, the chuck can automatically move a set distance and effectively clamp the pipe, realizing a high degree of automation in the pipe cutting process.

[0131] The above has specifically described the preferred embodiments of the present invention, but the present invention is not limited to the above - mentioned embodiments. Those skilled in the art can also make various equivalent variations or substitutions without departing from the spirit of the present invention, and these equivalent variations or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A loading device for a laser cutting machine, characterized in that, it includes: A chassis (100) provided with an inclined surface and a horizontal surface for supporting a pipe (400), the horizontal surface being located in front of the inclined surface, and the horizontal surface being connected to the lowest point of the inclined surface; A clamping manipulator (200) connected to the chassis (100) and movable relative to the chassis (100) back and forth. The clamping manipulators (200) are arranged at intervals along the length direction of the pipe (400). The clamping manipulator (200) includes a first clamping block (210) and a second clamping block (220) for clamping the pipe (400). The first clamping block (210) and the second clamping block (220) are arranged opposite to each other vertically. Moreover, both the first clamping block (210) and the second clamping block (220) can move up and down. The rear side surface of the clamping manipulator (200) is located above the horizontal surface to block the pipe (400), and the clamping manipulator (200) is provided with a horizontal first rack (830); A driving device including a driving shaft (730), a first gear (720), and a motor (700). The driving shaft (730) is connected to the chassis (100) and can rotate along its left - right horizontal axis. The first gear (720) is arranged corresponding to and meshed with the first rack (830). All the first gears (720) are connected to the driving shaft (730), and the motor (700) is in transmission connection with the driving shaft (730); Lifting mechanisms (300) arranged at intervals along the length direction of the pipe (400). The lifting mechanism (300) includes a material - supporting plate (310) that can move up and down. The material - supporting plate (310) is provided with a material - supporting top surface for supporting the pipe (400). The front - rear distance between the rear side surface of the material - supporting plate (310) and the rear side surface of the clamping manipulator (200) is within the range of the radius of the pipe (400) to three times the radius, so that the center of gravity of only one pipe (400) falls on the material - supporting plate (310) and can be lifted by the material - supporting plate (310); A driving mechanism (500) connected to the lifting mechanism (300) to drive the lifting mechanism (300) to move back and forth; when the clamping manipulator (200) moves backward relative to the chassis (100), at this time, the rear side surface of the clamping manipulator (200) is located in front of the rear side surface of the material - supporting plate (310) and can contact a pipe (400) located on the horizontal surface and at the foremost side, so as to position the pipe (400), prompting the material - supporting plate (310) to only lift the pipe (400) in contact with the clamping manipulator (200); under the action of the driving mechanism (500), the lifting mechanism (300) drives the pipe (400) to cross over the clamping manipulator (200), and the clamping manipulator (200) can clamp the pipe (400) and send the pipes (400) to the laser cutting machine one by one.

2. The loading device for a laser cutting machine according to claim 1, characterized in that, the material - supporting top surface is V - shaped; the loading device further includes: A blocking rod, which is vertically arranged, and the blocking rod is arranged above the horizontal plane for blocking the pipe (400); A first telescopic cylinder (140), whose fixed end is connected to the chassis (100), and the telescopic end of the first telescopic cylinder (140) is connected to the blocking rod to drive the blocking rod to lift and lower.

3. The loading device of the laser cutting machine according to claim 2, characterized in that, The clamping manipulator (200) further includes: A support (260), which is connected to the chassis (100) and can move back and forth, and the first clamping block (210) and the second clamping block (220) are respectively connected to the support (260); An upper rack (211), which is vertically arranged, and the upper rack (211) is connected to the first clamping block (210); A lower rack (221), which is vertically arranged, and the lower rack (221) is connected to the second clamping block (220), and the lower rack (221) and the upper rack (211) are arranged opposite to each other left and right; A transmission gear (250), which is connected to the support (260) and can rotate around its front and rear horizontal axes, and the transmission gear (250) is respectively meshed and connected to the upper rack (211) and the lower rack (221); A second telescopic cylinder (270), whose fixed end is connected to the support (260), and the telescopic end of the second telescopic cylinder (270) is connected to the first clamping block (210) or the second clamping block (220).

4. The loading device of the laser cutting machine according to any one of claims 1 to 3, characterized in that, The lifting mechanism (300) further includes: A moving seat (340), which is connected to the driving mechanism (500); A lifting seat (350), which is connected to the moving seat (340), and the lifting seat (350) can move up and down relative to the moving seat (340), and the material supporting plate (310) is connected to the top of the lifting seat (350); A third telescopic cylinder (320), whose fixed end is connected to the moving seat (340), and the telescopic end of the third telescopic cylinder (320) is connected to the lifting seat (350).

5. The loading device of the laser cutting machine according to claim 4, characterized in that, The loading device further includes: A transmission shaft (600), which is connected to all the moving seats (340), and the transmission shaft (600) can rotate around the left and right horizontal axes; A second gear (610), which is connected to the transmission shaft (600); A second rack (620), which is connected to the lifting seat (350), and the second rack (620) is vertically arranged, and the second rack (620) is meshed and connected to the second gear (610).

6. The loading device of the laser cutting machine according to claim 5, characterized in that, The loading device further includes a positioning plate (130); the positioning plate (130) is connected to the chassis (100), the positioning plate (130) is vertically arranged, and the positioning plate (130) is located on the left or right side of the inclined plane.

7. The loading device of the laser cutting machine according to claim 6, characterized in that, The driving mechanism (500) includes: Mounting base (540), which is connected to the chassis (100); Second guide rail (520), which is connected to the mounting base (540), and the two ends of the second guide rail (520) are arranged front and back; Second slider (530), which is connected to the second guide rail (520), and the second slider (530) is connected to the moving base (340); Fourth telescopic cylinder (510), whose fixed end is connected to the mounting base (540), and the telescopic end of the fourth telescopic cylinder (510) is connected to the moving base (340).

8. The loading device of the laser cutting machine according to claim 7, characterized in that, The moving base (340) is provided with a third guide rail (330), and the third guide rail (330) is arranged vertically; the lifting base (350) is provided with a third slider (360), and the third slider (360) is connected to the third guide rail (330).

9. The loading device of the laser cutting machine according to claim 8, characterized in that, The chassis (100) is provided with a horizontal fourth guide rail (820), the clamping manipulator (200) is provided with a fourth slider (810), and the fourth slider (810) is connected to the fourth guide rail (820) and can move back and forth along the fourth guide rail (820).

10. The loading device of the laser cutting machine according to claim 9, characterized in that, The chassis (100) is provided with a plurality of support rods (110) and a plurality of support plates (120); the plurality of support rods (110) are arranged at intervals from left to right, and the two ends of the support rods (110) are arranged front and back and are inclined to form the inclined surface; the plurality of support plates (120) are arranged at intervals from left to right to form the horizontal plane.

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