Four-chuck laser cutting machine and pipe cutting method

Abstract

The present invention provides a four-chuck laser cutting machine and a pipe cutting method, which relates to laser processing equipment, comprising a horizontal bed, wherein the upper end of the horizontal bed is sequentially provided with a first chuck, a second chuck, a third chuck and a fourth chuck; a cutting head assembly is provided between the second chuck and the third chuck, and a follower blanking assembly is provided on one side of the cutting head assembly, and the follower blanking assembly is horizontally slidably installed inside the horizontal bed; at least one follower support assembly is provided on the other side of the cutting head assembly. The beneficial effect of the present invention is that the present invention is not only easy to process the bed, but also can directly install a chuck with a universal structure horizontally on the bed, thereby facilitating the installation and adjustment of the chuck, and improving the stability of the entire machine tool, reducing the manufacturing and installation costs of the entire four-chuck laser cutting machine; at the same time, the present invention can also reduce the occupied space of the entire four-chuck laser cutting machine.

Description

Technical Field

[0001] The invention relates to laser processing equipment, in particular to a four-chuck laser cutting machine and a pipe cutting method. Background Art

[0002] Laser cutting has the characteristics of good cutting quality, high cutting efficiency, fast speed and non-contact, so it is widely used and also brings convenience to the cutting and processing of pipes.

[0003] To achieve true zero-waste cutting, reduce raw material consumption, better clamp the pipe, and improve cutting quality, existing technology uses a four-chuck laser cutting machine to cut some heavy pipes. Existing four-chuck laser cutting machines mostly adopt a side-mounted structure, that is, the four chucks are hung on the bed base, and the guide rails are placed on the side of the bed. However, the four-chuck laser cutting machine with this structure not only has high bed processing costs and poor stability, but also requires the chucks to be made into special shapes. At the same time, it also requires a complex structure, large space, and high cost loading and unloading device to achieve automatic loading and unloading of pipes. Summary of the Invention

[0004] The technical problem solved by the present invention is to provide a four-chuck laser cutting machine with low manufacturing and installation costs, small footprint and high stability, so that it can achieve dead angle and zero tailing cutting while solving the problems of high cost and poor stability of the original four-chuck laser cutting machine.

[0005] In order to solve the above technical problems, on the one hand, the present invention provides a four-chuck laser cutting machine, which includes a horizontal bed, and the upper end of the horizontal bed is sequentially provided with a first chuck, a second chuck, a third chuck and a fourth chuck; a cutting head assembly is provided between the second chuck and the third chuck, and a follower blanking assembly is provided on one side of the cutting head assembly, and the follower blanking assembly is horizontally slidably installed inside the horizontal bed; and at least one follower support assembly is provided on the other side of the cutting head assembly. In this way, since the four-chuck laser cutting machine provided by the present invention adopts a horizontal bed and each chuck is placed horizontally on the horizontal bed, it is not only easy to process the bed, but also can directly install chucks with a universal structure horizontally on the bed, thereby facilitating the installation and adjustment of the chuck and improving the stability of the entire machine tool; in addition, since the present invention places the follower blanking assembly inside the bed, it can also reduce the occupied space of the entire four-chuck laser cutting machine.

[0006] Furthermore, the follow-up unloading component includes a slide body, which is installed inside the horizontal bed. The slide body is slidably connected to a unloading base along the length direction of the horizontal bed. The unloading base is vertically slidably connected to an upper and lower slide. The upper end of the upper and lower slide is hinged with a flip plate, and the unloading action can be achieved by rotating the flip plate during the unloading process.

[0007] Furthermore, one side of the upper and lower slides (1) is provided with, in order from top to bottom, an articulated seat (1) and an articulated seat (2), and the flip plate (1) is provided with, in order, an articulated seat (3) and an articulated seat (4) in a horizontal direction away from the upper and lower slides (1). A connecting rod (1) is hingedly connected between the articulated seat (1) and the articulated seat (3), and a flip drive cylinder (1) is hingedly connected between the articulated seat (2) and the articulated seat (4). Thus, because two sets of articulated mechanisms are provided between the flip plate (1) and the upper and lower slides (1), when the flip drive cylinder (1) drives the flip plate (1) to rotate downward, it can drive the flip plate (1) to move laterally toward the outside of the horizontal bed, thereby tilting the flip plate (1) toward the outside of the horizontal bed, thereby preventing the pipe from damaging the horizontal bed during the unloading process.

[0008] Furthermore, a slag receiving plate is rotatably mounted on one side of the flip plate close to the cutting head assembly, and during the material receiving process, waste generated during the cutting process can be discharged by flipping the slag receiving plate.

[0009] Furthermore, a follow-up blanking component 2 is provided on the side of the follow-up blanking component 1 away from the cutting head component. In this way, for some longer pipes, the present invention can simultaneously provide follow-up support to them through the follow-up blanking component 1 and the follow-up blanking component 2.

[0010] Furthermore, a receiving rack is provided on the outside of the horizontal bed, and a receiving plate is rotatably mounted on the receiving rack. The receiving plate is disposed opposite to the first follower blanking assembly and / or the second follower blanking assembly. Thus, during the receiving process, the present invention can change the angle of the receiving plate by flipping it to adapt it to the blanking angle of the first follower blanking assembly and / or the second follower blanking assembly, thereby allowing the pipe to fall more easily into the receiving rack and better protecting the guide rails provided on the horizontal bed.

[0011] Furthermore, the follower support assembly includes a rail support seat, which is installed inside the horizontal bed. The rail support seat is vertically slidably connected to a follower plate, which is vertically slidably connected to a chain plate, which is hinged to two hinge bars. The follower plate is slidably installed with two rollers in a horizontal direction perpendicular to the length of the horizontal bed, and the two rollers are respectively hinged to the two hinge bars. At this time, the follower support assembly provided by the present invention can not only provide follower support for the pipe, but also can pull the chain plate to self-center the pipe left and right during the loading process, that is, to center the pipe, so that the pipe and each chuck remain concentric, and each chuck can be clamped more easily.

[0012] On the other hand, the present invention also provides a pipe cutting method using the above-mentioned four-chuck laser cutting machine, which comprises the following steps:

[0013] Step 1: pipe loading;

[0014] Step 2: The first chuck moves forward to feed the material;

[0015] Step 3: The follower blanking assembly moves to a front position close to the cutting head assembly, and the flip plate is raised, while the slag receiving plate remains in the lowered state;

[0016] Step 4: Determine whether the third chuck and / or the fourth chuck are required to clamp the front end of the pipe based on the length of the finished product. If not, proceed to step 5; if necessary, proceed to step 6.

[0017] Step 5: During the cutting process before the pipe is cut, the turning plate 1 of the follow-up blanking assembly 1 is kept in a raised state and supports the pipe in a follow-up manner; when the pipe is cut, the slag receiving plate of the follow-up blanking assembly 1 is first leveled, and then the cutting action is performed; after the cutting action is completed, the follow-up blanking assembly 1 is used to blank the pipe; after the blanking action is completed, the turning plate 1 is leveled, and the slag receiving plate falls, preparing for the next cutting;

[0018] Step 6: Before the pattern cutting of the pipe, the flip plate falls, and the third chuck moves to a position close to the cutting head assembly to clamp and cut the pipe; after the cutting is completed, the third chuck releases the pipe and moves away from the cutting head assembly, controlling the flip plate 1 and / or flip plate 2 to be in a raised state and supporting the pipe; the slag receiving plate of the follower blanking assembly 1 is controlled to be in a flat state; then the pipe is first cut, and then the follower blanking assembly 1 and / or follower blanking assembly 2 is used for blanking; after the blanking action is completed, the flip plate 1 and flip plate 2 are flattened, and the slag receiving plate falls to prepare for the next cutting;

[0019] Step 7: Repeat step 5 or step 6 according to the length of the finished material to be cut until only the last finished material is left to be processed;

[0020] Step 8: Determine the clamping method of the third and fourth chucks based on the length of the last finished workpiece. If the third and fourth chucks need to be superimposed for clamping, determine whether the distance between the third chuck and the cutting head assembly meets the lifting condition of the follower blanking assembly 1. If not, proceed to step 9; if so, proceed to step 10.

[0021] Step 9: The third and fourth chucks move to a position close to the cutting head assembly and clamp and cut the front end of the pipe. After the cutting action is completed, the third and fourth chucks first clamp the pipe and move it above the flip plate 1, and then the flip plate 1 is raised to receive the material. Finally, the third and fourth chucks first release the pipe and move it away from the cutting head assembly, and then the flip plate 1 is driven to fall to flip and unload the material.

[0022] Step 10: Control the third and fourth chucks to move to a position close to the cutting head assembly, and clamp and cut the front end of the pipe; at the same time, the flip plate 1 will rise after the third chuck moves to one side of the follower blanking assembly 1, and provide follow-up support for the pipe during the cutting process until the tail of the pipe is cut; then control the third and fourth chucks to release the pipe and move away from the cutting head assembly, and finally drive the flip plate 1 to fall to flip and blank;

[0023] Step eleven, judge the clamping mode of the third chuck and the fourth chuck according to the length of the last finished part, if the third chuck and the fourth chuck need to be clamped separately, control the follow-up blanking assembly 1 to move to the rear position away from the cutting head assembly, control the third chuck and the fourth chuck to move to the position close to the cutting head assembly, and clamp the front end of the pipe; the first chuck and the fourth chuck drive the pipe forward, the third chuck remains stationary, and the cutting head assembly cuts the pipe; at the same time, the flip plate 1 and / or flip plate 2 gradually rises during the movement of the fourth chuck, and supports the pipe during the cutting process until the tail of the pipe is cut; then control the third chuck to release the pipe, and the fourth chuck drives the pipe to move away from the cutting head assembly until the pipe is separated from the third chuck, and then control the fourth chuck to release the pipe and move away from the cutting head assembly, and finally drive the flip plate 1 and / or to fall to flip and blank.

[0024] In step eleven, when the distance between the third chuck and the fourth chuck satisfies the condition that the follow-up blanking component 1 and the follow-up blanking component 2 can be raised at the same time, the follow-up blanking component 1 and the follow-up blanking component 2 are arranged between the third chuck and the fourth chuck; at this time, the third chuck and the fourth chuck jointly clamp the pipe during the cutting process, and the follow-up blanking component 1 and the follow-up blanking component 2 are in a servo follow-up support state during the entire cutting process, until the pipe is cut off, and then the flip plate 1 and the flip plate 2 are driven to fall to perform the flipping and blanking action.

[0025] In steps nine, ten and eleven, when the first chuck and the fourth chuck jointly drive the pipe forward, the pipe is first driven by the first chuck and the fourth chuck together, and then driven only by the fourth chuck; at the same time, after the first chuck releases the pipe, the first chuck is controlled to move to the origin position in the direction away from the cutting head assembly and prepare for the loading of the next pipe.

[0026] It can be seen from the above technical solutions that the present invention has the following advantages:

[0027] 1. Since the four-chuck laser cutting machine provided by the present invention adopts a horizontal bed and each chuck is placed horizontally on the horizontal bed, it is not only easy to process the bed, but also can directly install the chuck with a universal structure horizontally on the bed, thereby facilitating the installation and adjustment of the chuck, and improving the stability of the entire machine tool, thereby reducing the manufacturing and installation costs of the entire four-chuck laser cutting machine;

[0028] 2. Since the present invention places the follower support assembly, the follower blanking assembly 1, and the follower blanking assembly 2 inside the bed, it can also reduce the occupied space of the entire four-chuck laser cutting machine;

[0029] 3. During the unloading process, since the present invention can drive the turning plate to move toward the outside of the horizontal bed, it can also prevent the pipe from damaging the horizontal bed during the unloading process;

[0030] 4. The present invention can realize the cutting of pipes without dead angles and tailings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 It is a structural schematic diagram of a specific embodiment of the present invention;

[0033] Figure 2 The structure diagram of the follower support assembly in the present invention is as follows Figure 1 ;

[0034] Figure 3 The structure diagram of the follower support assembly in the present invention is as follows Figure 2 ;

[0035] Figure 4 The structure diagram of the follow-up feeding component 1 in the present invention is as follows Figure 1 ;

[0036] Figure 5 The structure diagram of the follow-up feeding component 1 in the present invention is as follows Figure 2 ;

[0037] Figure 6 This is the processing diagram of the last finished product. Figure 1 ;

[0038] Figure 7This is the processing diagram of the last finished product. Figure 2 ;

[0039] Figure 8 This is the processing diagram of the last finished product. Figure 3 .

[0040] In the figure: 1. horizontal bed; 2. crossbeam; 3. cutting head assembly; 4. first chuck; 5. second chuck; 6. third chuck; 7. fourth chuck; 8. follow-up support assembly; 81. rail support seat; 82. follow-up plate; 83. roller; 84. roller; 85. chain plate; 86. hinge bar; 9. follow-up unloading assembly one; 91. unloading base one; 92. connecting rod one; 93. upper and lower slide seat one; 94. articulated seat two; 95. flip drive cylinder one; 96. articulated seat one; 97. articulated seat four; 98. articulated seat three; 99. slide body; 910. linear guide rail; 911. left and right moving drive cylinder; 912. flip plate one; 913. slag receiving drive cylinder; 914. slag receiving plate; 10. follow-up unloading assembly two; 11. material receiving rack. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] Example 1

[0043] like Figure 1 As shown, this embodiment 1 provides a four-chuck laser cutting machine, which includes a horizontal bed 1, and the upper end of the horizontal bed 1 is sequentially provided with a first chuck 4, a second chuck 5, a third chuck 6 and a fourth chuck 7, the first chuck 4, the second chuck 5, the third chuck 6 and the fourth chuck 7 are all horizontally slidably mounted on the horizontal bed 1, and a cutting head assembly 3 is arranged between the second chuck 5 and the third chuck 6 through a crossbeam 2, and the cutting head assembly 3 is provided with at least one follower support assembly 8 along the length direction of the horizontal bed 1 on the side close to the first chuck 4.

[0044] The follow-up support assembly 8 preferably has a left and right self-centering function. Figure 2 、 Figure 3As shown, the follower support assembly 8 includes a rail support seat 81 installed inside the horizontal bed 1, the rail support seat 81 is vertically slidably connected to a follower plate 82, the upper end of the follower plate 82 is rotatably installed with a roller 83, and the upper end of the follower plate 82 is slidably installed with two rollers 84 in a horizontal direction perpendicular to the length direction of the horizontal bed 1; one side of the follower plate 82 is vertically slidably connected to a chain plate 85, and the chain plate 85 is hinged to two hinge bars 86; and the two hinge bars 86 are respectively hinged to the two rollers 84, so that During the loading process, this embodiment 1 can drive the chain plate 85 to slide downward through the centering drive cylinder, and make the two rollers 84 approach each other under the action of the hinge bar 86, thereby centering the pipe so that the first chuck 4, the second chuck 5, the third chuck 6 and the fourth chuck 7 can clamp the pipe; in addition, during the cutting process, this embodiment 1 can ensure that the roller 83 can always support the pipe by sliding the follower plate 82 up and down, and ensure that the follower support assembly 8 can avoid the corresponding chuck in time.

[0045] A follower blanking assembly 1 9 and a follower blanking assembly 2 10 are sequentially provided on one side of the cutting head assembly 3 close to the fourth chuck 7 in a direction away from the cutting head assembly 3 .

[0046] Among them, Figure 4 、 Figure 5 As shown, the follower blanking component 9 preferably adopts a structure that can slide horizontally relative to the horizontal bed 1 along the length direction of the horizontal bed 1. Specifically, the follower unloading assembly 9 includes a slide body 99, the slide body 99 is installed inside the horizontal bed 1, and the slide body 99 is slidably connected to the unloading base 91 along the length direction of the horizontal bed 1 through a linear guide rail 910, and a left and right moving drive cylinder 911 is connected between the unloading base 91 and the horizontal bed 1, and the upper part of the unloading base 91 is vertically slidably connected to the upper and lower slides 93, and the upper part of the upper and lower slides 93 is provided with an articulated seat 1 96 and an articulated seat 2 94 in sequence from top to bottom, and a flip plate 1 912 is provided above the upper and lower slides 93, and the flip plate 1 912 is provided with an articulated seat 3 98 and an articulated seat 4 97 in sequence along the horizontal direction away from the upper and lower slides 93; and a connecting rod 1 92 is hinged between the articulated seat 1 96 and the articulated seat 3 98, and a flip drive cylinder 1 95 is hinged between the articulated seat 2 94 and the articulated seat 4 97. In this way, when the flip drive cylinder 95 drives the flip plate 912 to flip, since the flip plate 912 and the upper and lower slide seats 93 are indirectly hinged together through the connecting rod 92, the flip plate 912 has a lateral stroke, that is, the flip plate 912 can tilt toward the outside of the horizontal bed 1 during the flipping process, thereby preventing the pipe from damaging the horizontal bed 1.

[0047] Except that the sliding seat body 99 and the left and right moving drive cylinder 911 are not provided, the rest of the structure of the follower unloading component 2 10 is the same as the follower unloading component 1 9. Specifically, the follower unloading component 2 10 includes a unloading base 2, which is fixedly installed inside the horizontal bed 1, and the upper part of the unloading base 2 is vertically slidably connected to the upper and lower slides 2. The upper part of the upper and lower slides 2 is provided with an articulated seat 5 and an articulated seat 6 from top to bottom. A flip plate 2 is provided above the upper and lower slides 2, and the flip plate 2 is provided with an articulated seat 7 and an articulated seat 8 in a horizontal direction away from the upper and lower slides 2; and a connecting rod 2 is hinged between the articulated seat 5 and the articulated seat 7, and a flip drive cylinder 2 is hinged between the articulated seat 6 and the articulated seat 8.

[0048] In addition, in order to enable the follower unloading assembly 9 to simultaneously receive and discharge waste slag, this embodiment 1 further includes a slag receiving plate 914 rotatably mounted on the side of the flip plate 912 near the cutting head assembly 3, and a slag receiving drive cylinder 913 is hingedly connected between the slag receiving plate 914 and the flip plate 912. Thus, during the cutting process, this embodiment 1 can drive the slag receiving plate 914 to receive slag, flip and discharge slag under the action of the slag receiving drive cylinder 913.

[0049] In order to prevent the pipe from colliding with the bed during the process of moving out of the horizontal bed 1, a material receiving rack 11 is provided on the outer side of the horizontal bed 1 opposite to the follower unloading component 1 9 and / or the follower unloading component 2 10, and a material receiving plate is rotatably installed on the material receiving rack 11. In this way, during the material receiving process, this embodiment 1 can adapt to the falling angle of the pipe by changing the angle of the material receiving plate, thereby better protecting the pipe and the guide rail on the horizontal bed 1.

[0050] Example 2

[0051] This embodiment 2 provides a pipe cutting method using the above-mentioned four-chuck laser cutting machine, which includes the following steps:

[0052] Step 1: Tube loading: First, the follower support assembly 8 is lowered, and then the tube is transported to the space between the first chuck 4 and the second chuck 5 by the feeding device. After the feeding device delivers the tube into place, the follower support assembly 8 is first raised to support and center the tube, and then the first chuck 4 is driven to clamp the tail of the tube.

[0053] Step 2: The first chuck 4 moves forward to feed the material. The first chuck 4 clamps the pipe and moves toward the second chuck 5. The follower support assembly 8 is released and lowered in sequence during the movement of the first chuck 4 until the front end of the pipe is clamped by the second chuck 5.

[0054] Step 3: The follower blanking assembly 1 9 moves to the front position close to the cutting head assembly 3, and the flip plate 1 912 is in the raised state, and the slag receiving plate 914 remains in the dropped state;

[0055] Step 4: Determine whether the third chuck 6 and / or the fourth chuck 7 are required to clamp the front end of the pipe according to the length of the finished product. If not, proceed to step 5; if necessary, proceed to step 6.

[0056] Step 5: During the cutting process before the pipe is cut, the flip plate 912 of the follower blanking assembly 9 is kept in a raised state and supports the pipe in a follow-up manner; when the pipe is cut, the slag receiving plate 914 of the follower blanking assembly 9 is first leveled, and then the cutting action is performed; after the cutting action is completed, the flip plate 912 is lowered to a certain height, and then the flip plate 912 is flipped again to perform the pipe blanking action; after the blanking action is completed, the flip plate 912 is leveled, and the slag receiving plate 914 falls, preparing for the next cutting;

[0057] Step 6, before the pattern cutting of the pipe, the flip plate 1 912 is first dropped, and then the third chuck 6 is moved to a position close to the cutting head assembly 3 and clamps the front end of the pipe; then, under the joint action of the first chuck 4 and the third chuck 6, the pipe is pushed forward and the pipe is cut in the process; after the cutting is completed, the third chuck 6 is first controlled to loosen the front end of the pipe and move in a direction away from the cutting head assembly 3, and the flip plate 1 912 and / or the flip plate 2 are controlled to be in a raised state and support the front end of the pipe; the slag receiving plate 914 of the follower blanking assembly 1 9 is controlled to be in a leveled state; then the cutting action is performed, and after the cutting action is completed, the flip plate 1 912 and / or the flip plate 2 are first controlled to drop to a certain height, and then the flip plate 1 912 and / or the flip plate 2 are flipped to perform the blanking action on the pipe; after the blanking action is completed, the flip plate 1 912 and the flip plate 2 are leveled, and the slag receiving plate 914 falls to prepare for the next cutting;

[0058] Step 7: Repeat step 5 or step 6 according to the length of the finished material to be cut until only the last finished material is left to be processed;

[0059] Step eight, judging the clamping mode of the third chuck 6 and the fourth chuck 7 according to the length of the last finished workpiece, if the third chuck 6 and the fourth chuck 7 need to be superimposed for clamping, and during the tail material cutting process, the distance between the third chuck 6 and the cutting head assembly 3 cannot meet the lifting condition of the follower blanking assembly 9, then proceed to step nine; if the third chuck 6 and the fourth chuck 7 need to be superimposed for clamping, and during the tail material cutting process, the distance between the third chuck 6 and the cutting head assembly 3 meets the lifting condition of the follower blanking assembly 9, then proceed to step ten; if the third chuck 6 and the fourth chuck 7 need to be clamped separately, then proceed to step eleven;

[0060] Step 9: The third chuck 6 and the fourth chuck 7 are moved to a position close to the cutting head assembly 3 to clamp and cut the front end of the pipe. After the cutting action is completed, the third chuck 6 and the fourth chuck 7 first clamp the pipe and move it above the flip plate 912, and then the flip plate 912 is raised to receive the material. Finally, the third chuck 6 and the fourth chuck 7 are first released from the pipe and moved away from the cutting head assembly 3, and then the flip plate 912 is driven to fall to flip and discharge the material.

[0061] Step 10: Control the third chuck 6 and the fourth chuck 7 to move to a position close to the cutting head assembly 3, and clamp and cut the front end of the pipe; at the same time, the flip plate 1 912 will rise after the third chuck 6 moves to one side of the follower blanking assembly 1 9, and provide follow-up support for the pipe during the cutting process until the tail of the pipe is cut; then control the third chuck 6 and the fourth chuck 7 to release the pipe and move away from the cutting head assembly 3, and finally drive the flip plate 1 912 to fall to flip and blank;

[0062] Step eleven, control the follow-up blanking assembly 1 9 to move to a rear position away from the cutting head assembly 3, control the third chuck 6 and the fourth chuck 7 to move to a position close to the cutting head assembly 3, and clamp the front end of the pipe; the first chuck 4 and the fourth chuck 7 jointly drive the pipe to move forward, and during this process the third chuck 6 remains stationary, and the cutting head assembly 3 cuts the pipe; at the same time, the flip plate 1 912 and / or flip plate 2 will gradually rise during the movement of the fourth chuck 7, and provide follow-up support for the pipe during the cutting process until the tail of the pipe is cut; then control the third chuck 6 to release the pipe, and the fourth chuck 7 drives the pipe to move away from the cutting head assembly until the pipe is separated from the third chuck 6, and then control the fourth chuck 7 to release the pipe and move away from the cutting head assembly 3, and finally drive the flip plate 1 912 and / or fall to flip and blank.

[0063] Moreover, in steps nine, ten and eleven, when the first chuck 4 and the fourth chuck 7 jointly drive the pipe forward, the pipe is first driven by the first chuck 4 and the fourth chuck 7 together, and then driven only by the fourth chuck 7; and when the pipe is driven only by the fourth chuck 7, that is, when the first chuck 4 releases the pipe, the first chuck 4 is controlled to move to the origin position in the direction away from the cutting head assembly 3, and prepare for the loading of the next pipe.

[0064] In step eleven, when processing the last finished product, the pipe is clamped separately by the third chuck 6 and the fourth chuck 7, and the distance between the third chuck 6 and the fourth chuck 7 meets the condition that the follow-up blanking component 1 9 and the follow-up blanking component 2 10 can be raised at the same time, the follow-up blanking component 1 9 and the follow-up blanking component 2 10 are arranged between the third chuck 6 and the fourth chuck 7; at this time, the third chuck 6 and the fourth chuck 7 jointly clamp the pipe during the cutting process, and the follow-up blanking component 1 9 and the follow-up blanking component 2 10 are in a servo follow-up support state during the entire cutting process, until the pipe is cut off and then the flip plate 1 912 and the flip plate 2 are driven to fall to a certain distance to perform the flipping and blanking action.

[0065] In the description and claims of the present invention, as well as in the accompanying drawings, the terms "first," "second," "third," "fourth," and so forth (if any) are used to distinguish similar items and are not necessarily used to describe a particular order or sequential sequence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present invention described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "including," "comprising," and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

[0066] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A four-chuck laser cutting machine, characterized in that: The machine tool of claim 1, wherein the upper end of the machine tool is provided with a first chuck, a second chuck, a third chuck and a fourth chuck in sequence; a cutting head assembly is provided between the second chuck and the third chuck, and a follower blanking assembly is provided on one side of the cutting head assembly, and the follower blanking assembly is horizontally slidably installed inside the horizontal machine tool; at least one follower support assembly is provided on the other side of the cutting head assembly; the follower blanking assembly includes a slide body, and the slide body is installed inside the horizontal machine tool, and the slide body is slidably connected to a blanking base along the length direction of the horizontal machine tool, and an upper and lower slides are vertically slidably connected to the blanking base. , the upper part of the upper and lower slides is provided with an articulated seat 1 and an articulated seat 2 in sequence from top to bottom, a flip plate 1 is provided above the upper and lower slides, and the flip plate 1 is provided with an articulated seat 3 and an articulated seat 4 in sequence along the horizontal direction away from the upper and lower slides; a connecting rod 1 is hinged between the articulated seat 1 and the articulated seat 3, and a flip driving cylinder 1 is hinged between the articulated seat 2 and the articulated seat 4; the clamping method of the third chuck and the fourth chuck is judged according to the length of the last finished part, if the third chuck and the fourth chuck need to be superimposed for clamping, judge whether the distance between the third chuck and the cutting head assembly can meet the lifting condition of the follow-up blanking assembly 1.

2. The four-chuck laser cutting machine according to claim 1, characterized in that: A slag receiving plate is rotatably mounted on one side of the flip plate close to the cutting head assembly.

3. The four-chuck laser cutting machine according to claim 1, characterized in that: A follow-up blanking component 2 is provided on a side of the follow-up blanking component 1 away from the cutting head component.

4. A pipe cutting method using the four-chuck laser cutting machine according to any one of claims 1 to 3, characterized in that: The following steps are involved: Step 1: pipe loading; Step 2: The first chuck moves forward to feed the material; Step 3: The follower blanking assembly moves to a front position close to the cutting head assembly, and the flip plate is raised, while the slag receiving plate remains in the lowered state; Step 4: Determine whether the third chuck and / or the fourth chuck are required to clamp the front end of the pipe based on the length of the finished product. If not, proceed to step 5; if necessary, proceed to step 6. Step 5: During the cutting process before the pipe is cut, the turning plate 1 of the follow-up blanking assembly 1 is kept in a raised state and supports the pipe in a follow-up manner; when the pipe is cut, the slag receiving plate of the follow-up blanking assembly 1 is first leveled, and then the cutting action is performed; after the cutting action is completed, the follow-up blanking assembly 1 is used to blank the pipe; after the blanking action is completed, the turning plate 1 is leveled, and the slag receiving plate falls, preparing for the next cutting; Step 6: Before the pattern cutting of the pipe, the flip plate falls, and the third chuck moves to a position close to the cutting head assembly to clamp and cut the pipe; after the cutting is completed, the third chuck releases the pipe and moves away from the cutting head assembly, controlling the flip plate 1 and / or flip plate 2 to be in a raised state and supporting the pipe; the slag receiving plate of the follower blanking assembly 1 is controlled to be in a flat state; then the pipe is first cut, and then the follower blanking assembly 1 and / or follower blanking assembly 2 is used for blanking; after the blanking action is completed, the flip plate 1 and flip plate 2 are flattened, and the slag receiving plate falls to prepare for the next cutting; Step 7: Repeat step 5 or step 6 according to the length of the finished material to be cut until only the last finished material is left to be processed on the processed pipe.

5. The pipe cutting method according to claim 4, characterized in that: Also includes: Step 8: Determine the clamping method of the third and fourth chucks based on the length of the last finished workpiece. If the third and fourth chucks need to be superimposed for clamping, determine whether the distance between the third chuck and the cutting head assembly meets the lifting condition of the follower blanking assembly 1. If not, proceed to step 9; if so, proceed to step 10. Step 9: The third and fourth chucks move to a position close to the cutting head assembly and clamp and cut the front end of the pipe. After the cutting action is completed, the third and fourth chucks first clamp the pipe and move it above the flip plate 1, and then the flip plate 1 is raised to receive the material. Finally, the third and fourth chucks first release the pipe and move it away from the cutting head assembly, and then the flip plate 1 is driven to fall to flip and unload the material. Step ten, control the third chuck and the fourth chuck to move to a position close to the cutting head assembly, and clamp and cut the front end of the pipe; at the same time, the flip plate 1 will rise after the third chuck moves to one side of the follow-up blanking assembly 1, and provide follow-up support for the pipe during the cutting process until the tail of the pipe is cut; then control the third chuck and the fourth chuck to release the pipe, and move away from the cutting head assembly, and finally drive the flip plate 1 to fall for flipping and blanking.

6. The pipe cutting method according to claim 5, characterized in that: Also includes: Step eleven, judge the clamping mode of the third chuck and the fourth chuck according to the length of the last finished part, if the third chuck and the fourth chuck need to be clamped separately, control the follow-up blanking assembly 1 to move to the rear position away from the cutting head assembly, control the third chuck and the fourth chuck to move to the position close to the cutting head assembly, and clamp the front end of the pipe; the first chuck and the fourth chuck drive the pipe forward, the third chuck remains stationary, and the cutting head assembly cuts the pipe; at the same time, the flip plate 1 and / or flip plate 2 gradually rises during the movement of the fourth chuck, and supports the pipe during the cutting process until the tail of the pipe is cut; then control the third chuck to release the pipe, and the fourth chuck drives the pipe to move away from the cutting head assembly until the pipe is separated from the third chuck, and then control the fourth chuck to release the pipe and move away from the cutting head assembly, and finally drive the flip plate 1 and / or to fall to flip and blank.

7. The pipe cutting method according to claim 6, characterized in that: In step eleven, when the distance between the third chuck and the fourth chuck satisfies the condition that the follow-up blanking component 1 and the follow-up blanking component 2 can be raised at the same time, the follow-up blanking component 1 and the follow-up blanking component 2 are arranged between the third chuck and the fourth chuck; at this time, the third chuck and the fourth chuck jointly clamp the pipe during the cutting process, and the follow-up blanking component 1 and the follow-up blanking component 2 are in a servo follow-up support state during the entire cutting process, until the pipe is cut off, and then the flip plate 1 and the flip plate 2 are driven to fall to perform the flipping and blanking action.

8. The pipe cutting method according to claim 6, characterized in that: In steps nine, ten and eleven, when the first chuck and the fourth chuck jointly drive the pipe forward, the pipe is first driven by the first chuck and the fourth chuck together, and then driven only by the fourth chuck; at the same time, after the first chuck releases the pipe, the first chuck is controlled to move to the origin position in the direction away from the cutting head assembly.

Images