Laser cutting equipment for machining tubular part of universal machine

Abstract

The invention relates to the technical field of metal cutting, in particular to laser cutting equipment for machining a tubular part of a universal machine. The laser cutting head is arranged on the workbench; the limiting mechanism is arranged on the workbench; the rotating piece is rotationally arranged in the limiting mechanism; the driving part is used for driving the rotating part to rotate; the sliding disc is arranged in the limiting mechanism in a sliding manner; the two ends of the flexible connecting piece are connected with the rotating piece and the sliding disc respectively; the spring is arranged between the rotating piece and the sliding disc; according to the device, the outer wall of the pipe is wrapped and wound with the flexible connecting piece, the position of the pipe is fixed, therefore, the fixed part does not need to be located at the end of the pipe, and for the pipe with the long machining length, the size of the device and the occupied area during use are reduced; the use cost is reduced, and the equipment is convenient to place and move.

Description

Technical Field

[0001] The invention relates to the technical field of metal cutting, in particular to a laser cutting device for processing universal machine tubular parts. Background Art

[0002] Laser cutting mainly utilizes a high energy density laser beam to melt or vaporize the material, while an auxiliary gas blows away the slag to form a cutting seam.

[0003] When laser cutting tubular parts, one end of the tubular part is generally clamped and fixed by a chuck. The chuck can be suitable for pipes of various sizes and specifications. The other end of the pipe passes through a limiting mechanism. The chuck cooperates with the limiting mechanism to fix and support the tubular part, as well as rotate it, to achieve laser cutting.

[0004] Since the length of the processed pipe is usually long, it means that the slide rail used to control the movement of the chuck needs to be longer, so that after the pipe is cut, the position of the pipe can be moved for the next cutting. Therefore, the laser cutting equipment is large in size, occupies a large area, and the length of the slide rail is long, which also increases the cost of the equipment.

[0005] To this end, the present invention provides a laser cutting device for processing universal machine tubular parts. Summary of the invention

[0006] In view of the problem of large volume of laser cutting equipment mentioned above or in the prior art, the present invention is proposed.

[0007] Therefore, an object of the present invention is to provide a laser cutting apparatus for general purpose tubular component processing.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: a laser cutting device for processing tubular parts of general machines, comprising a workbench; a laser cutting head, which is arranged on the workbench; a limiting mechanism, which is arranged on the workbench; a rotating member, which is rotatably arranged in the limiting mechanism; a driving member, which is used to drive the rotating member to rotate; a sliding disk, which is slidably arranged in the limiting mechanism; a flexible connecting member, whose two ends are respectively connected to the rotating member and the sliding disk; a spring, which is arranged between the rotating member and the sliding disk; the rotation of the rotating member can drive the flexible connecting member to twist.

[0009] As a preferred solution of the laser cutting equipment for processing universal machine tubular parts of the present invention, there are two groups of flexible connecting members, and the two groups of flexible connecting members are symmetrically arranged on both sides of the rotating member.

[0010] As a preferred solution of the laser cutting equipment for processing universal machine tubular parts of the present invention, there are multiple flexible connectors in each group, and the multiple flexible connectors are distributed on the rotating member in a circular array.

[0011] As a preferred solution of the present invention for laser cutting equipment for processing tubular parts of general machines, the limiting mechanism includes a shell and a limiting plate arranged at the end of the shell, and also includes a push piece rotatably arranged on the limiting plate, and a support piece is slidably arranged in the limiting plate; the rotation of the push piece can control the support piece to slide, expand or contract in the limiting plate.

[0012] As a preferred solution of the laser cutting equipment for processing tubular parts of general machines of the present invention, the pushing member includes a pushing plate rotatably arranged on the limiting plate, and a guide rod arranged on the pushing plate; the guide rod passes through the sliding plate, and the guide rod and the sliding plate are slidably connected.

[0013] As a preferred solution of the present invention for the laser cutting equipment for processing tubular parts of general machines, wherein: a spiral groove is provided on the push disk; a sliding groove is provided in the limit disk; the support member includes a push rod slidably arranged in the sliding groove, and a sliding column arranged on the push rod; the outer wall of the sliding column and the inner wall of the spiral groove are slidably connected.

[0014] As a preferred solution of the laser cutting equipment for processing universal machine tubular parts of the present invention, a roller is provided at the end of the push rod; and a reinforcement ring is provided at the end of the guide rod.

[0015] As a preferred solution of the laser cutting equipment for processing universal machine tubular parts of the present invention, the rotating part is a gear ring; the driving part includes a driving motor and a gear arranged on the output shaft of the driving motor; the gear and the gear ring are meshingly connected.

[0016] As a preferred solution of the present invention for the laser cutting equipment for processing universal machine tubular parts, the workbench includes a movable platform, a support frame arranged on the movable platform, and a multi-axis support arranged on the support frame; the laser cutting head is arranged on the multi-axis support.

[0017] As a preferred solution of the laser cutting equipment for processing tubular parts of general machines of the present invention, wherein: a rotating table is provided on the movable platform; and the limiting mechanism is connected to the movable platform via the rotating table.

[0018] The beneficial effects of the laser cutting equipment for processing tubular parts of general machines of the present invention are as follows: the present invention fixes the position of the pipe by wrapping a flexible connector around the outer wall of the pipe, so the fixed part does not need to be located at the end of the pipe. For processing pipes with a longer length, the volume of the equipment and the floor space occupied during use are reduced, the use cost is reduced, and the equipment is easy to place and move. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0020] Figure 1 The figure is a schematic diagram of the overall structure of a laser cutting device used for processing tubular parts of general machines.

[0021] Figure 2 The present invention is a schematic diagram of the cross-sectional structure of a limiting mechanism of a laser cutting device for processing tubular parts of a general machine.

[0022] Figure 3 The figure is a schematic diagram of the internal structure of the limiting mechanism of the laser cutting equipment used for processing tubular parts of general machines.

[0023] Figure 4 The present invention is a schematic diagram of the connection structure of a rotating part, a sliding disk, a flexible connecting part and a spring of a laser cutting device used for processing tubular parts of a general machine.

[0024] Figure 5 The figure is a schematic diagram of the connection structure of gears and rotating parts of laser cutting equipment used for processing tubular parts of general machines.

[0025] In the figure: 1. workbench; 11. mobile platform; 12. support frame; 13. multi-axis bracket; 14. rotating table; 2. laser cutting head; 3. limit mechanism; 31. shell; 32. limit plate; 321. sliding groove; 33. push member; 331. push plate; 332. spiral groove; 333. guide rod; 334. reinforcement ring; 34. support member; 341. push rod; 342. roller; 343. slide column; 4. rotating member; 5. driving member; 51. driving motor; 52. gear; 6. sliding plate; 7. flexible connector; 8. spring. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Example 1, reference Figures 1 to 5 , is the first embodiment of the present invention, which provides a laser cutting device for processing tubular parts of general machines, including a workbench 1; a laser cutting head 2, which is arranged on the workbench 1; the laser cutting head 2 is used to cut the pipe, a limiting mechanism 3, which is arranged on the workbench 1; the pipe passes through the limiting mechanism 3 during the processing operation, a rotating member 4, which is rotatably arranged in the limiting mechanism 3; a driving member 5, which is used to drive the rotating member 4 to rotate; a sliding plate 6, which is slidably arranged in the limiting mechanism 3; the sliding plate 6 can slide along the axis of the limiting mechanism 3, a flexible connecting member 7, whose two ends are respectively connected to the rotating member 4 and the sliding plate 6; a spring 8, which is arranged between the rotating member 4 and the sliding plate 6; the rotation of the rotating member 4 can drive the flexible connecting member 7 to twist.

[0030] It should be noted that, refer to Figure 4 The two ends of the flexible connecting member 7 and the rotating member 4 and the sliding plate 6 are all rotationally connected.

[0031] Preferably, the flexible connecting member 7 is a rubber belt, which may have good friction and toughness.

[0032] When in use, the pipe passes through the center of the limiting mechanism 3 and the center of the rotating member 4, and the rotating member 4 is controlled to rotate by the driving member 5. Due to the elastic force of the spring 8, the rotating member 4 and the sliding plate 6 will be in a state of being separated. When the rotating member 4 rotates, it will pull the flexible connecting member 7 to move and overcome the elastic force of the spring 8, compress the spring 8, and the sliding plate 6 slides along the axial direction of the limiting mechanism 3. The flexible connecting member 7 twists as the rotation angle of the rotating member 4 increases, and the space formed inside the flexible connecting member 7 shrinks until the flexible connecting member 7 is twisted and wrapped around the outer wall of the pipe, thereby completing the clamping and fixation of the pipe.

[0033] Compared with the prior art method of fixing the end of the pipe by a chuck, the present invention uses a flexible connector 7 to wrap around the outer wall of the pipe to fix the position of the pipe. Therefore, in practical applications, the fixed part does not need to be located at the end of the pipe, which can effectively reduce the length of the slide rail. For longer pipes, the present invention facilitates the fixation of the pipe, reduces the volume of the equipment and the floor space occupied during use, reduces the cost of use, and makes the equipment easy to place and move.

[0034] Specifically, two groups of flexible connectors 7 are provided, and the two groups of flexible connectors 7 are symmetrically arranged on both sides of the rotating member 4 .

[0035] When the rotating member 4 rotates, the flexible connector 7 will be twisted and overcome the elastic force of the spring 8 to make the sliding plate 6 close to the rotating member 4. Therefore, as the degree of twisting of the flexible connector 7 increases, the part where the flexible connector 7 and the pipe are in contact will gradually approach the position of the rotating member 4. By arranging the flexible connector 7 symmetrically, when the rotating member 4 rotates, the flexible connectors 7 on both sides will be twisted, and during the twisting process of the flexible connector 7, the pulling forces on the pipe are in opposite directions and can offset each other to maintain the stability of the pipe during the fixing process.

[0036] Furthermore, each group of flexible connectors 7 is provided with a plurality of flexible connectors 7, and the plurality of flexible connectors 7 are distributed in a circular array on the rotating member 4. The provision of the plurality of flexible connectors 7 can increase the fitting area with the pipe, improve the friction force during fixation, and thus improve the fixation effect. After being provided in a circular array, the flexible connectors 7 can apply pressure evenly during the twisting process to keep the pipe in a balanced state. After the flexible connectors 7 wrap the pipe, the pipe will not be skewed or tilted.

[0037] It should be noted that the use of the flexible connector 7 to fix the pipe also has the following advantages: the fixing point area is large, and the flexible connector 7 is made of flexible material, which can well protect the pipe from deformation. The circular pipe can withstand a large force when the external force is uniformly applied. The traditional chuck clamping has a small fixing point area. If the clamping force is too large, it is easy to cause the pipe to deform. If the clamping force is too small, the pipe cannot be clamped. If the clamping force is too large, the pipe may still not be stably fixed after deformation. In the wrapping fixing method, the pipe itself can withstand a large pressure. In addition, the area increases during fitting, and the force during fixing will also be large, which can ensure that the pipe does not deform. Provide a large fixing force, and the flexible connector 7 itself has the ability to deform. If the end of the pipe hits an obstacle during the control of the movement of the pipe, the flexible connector 7 can also play a certain buffering effect to protect the equipment and the pipe. At the same time, since the flexible connector 7 uses the space formed by twisting and shrinking the inside to achieve the fixation of the pipe, it can be applied to pipes of different diameters and has strong versatility.

[0038] Example 2, reference Figure 1~Figure 5 , which is the second embodiment of the present invention. Different from the previous embodiment, the limiting mechanism 3 includes a shell 31, and a limiting plate 32 arranged at the end of the shell 31, and also includes a pushing member 33 rotatably arranged on the limiting plate 32, and a supporting member 34 is slidably arranged in the limiting plate 32; both ends of the shell 31 are provided with limiting plates 32, and three supporting members 34 are circumferentially distributed in the limiting plate 32. The rotation of the pushing member 33 can control the supporting member 34 to slide, expand or contract in the limiting plate 32.

[0039] Specifically, the pushing member 33 includes a pushing plate 331 rotatably arranged on the limit plate 32, and a guide rod 333 arranged on the pushing plate 331; a plurality of guide rods 333 are arranged in a circular array on the pushing plate 331, and the guide rods 333 pass through the sliding plate 6. The guide rods 333 and the sliding plate 6 are slidably connected, and the guide rods 333 can limit the movement of the sliding plate 6.

[0040] Furthermore, a spiral groove 332 is provided on the push plate 331; a sliding groove 321 is provided in the limit plate 32; the support member 34 includes a push rod 341 slidably provided in the sliding groove 321, and a sliding column 343 provided on the push rod 341; the outer wall of the sliding column 343 is slidably connected to the inner wall of the spiral groove 332.

[0041] A roller 342 is disposed at the end of the push rod 341 ; a reinforcement ring 334 is disposed at the end of the guide rod 333 . The roller 342 facilitates the pulling and moving of the internal pipe, and the reinforcement ring 334 can enhance the strength of the guide rod 333 .

[0042] The rest of the structure is the same as that of Example 1.

[0043] When in use, after the pipe is inserted into the limiting mechanism 3, the rotation of the rotating member 4 will drive the flexible connecting member 7 to move. Due to the elastic force of the spring 8, the sliding plate 6 will first remain away from the rotating member 4. Therefore, in the initial stage of rotation, the rotating member 4 will drive the sliding plate 6 to rotate together through the flexible connecting member 7. When the sliding plate 6 rotates, it drives the push plate 331 to rotate together. During the rotation of the push plate 331, the sliding column 343 is guided to slide through the spiral groove 332, so that the push rod 341 slides out of the sliding groove 321. The space formed in the middle of the push rod 341 gradually decreases until the ends of all the push rods 341 hit the outer wall of the pipe. Since the push rod 341 cannot continue to slide after being hit, the rotation of the rotating member 4 at this time will cause the flexible connecting member 7 to twist, thereby fixing the pipe.

[0044] Reference Figure 5The push rod 341 that synchronously telescopes and slides can automatically align the center of the pipe to facilitate positioning during laser cutting. Since the rotating member 4 will first extend the push rod 341 when rotating to form a limited support for the pipe, the rotating member 4 will be rotated after the support is completed to fix the pipe. Therefore, when the pipe needs to be moved, it is only necessary to properly control the rotation of the rotating member 4 to reduce the clamping force of the flexible connecting member 7 on the pipe. At this time, the roller 342 is still in a state of resisting the pipe, which can form an effective support for the pipe, making it convenient to pull or move the pipe after cutting the pipe to carry out the next cutting operation.

[0045] Due to the different thickness and weight of the pipes, the required fixing force and supporting force are also different. The fixing force and supporting force can be adjusted by controlling the rotation angle of the rotating member 4, that is, controlling the torsion angle of the flexible connector 7. It should be noted that for heavier pipes, the supporting force required to be provided by the push rod 341 is greater, and the fixing force required to be provided by the flexible connector 7 is also greater. Because the inertia of an object with a large mass is large, in order to fix the heavier pipe, the flexible connector 7 needs to provide a greater friction force to keep the pipe in a stable state during movement. Therefore, the torsion angle of the flexible connector 7 is greater, that is, the greater the rotational force provided to the push plate 331, the greater the supporting force provided by the push rod 341. For pipes with small mass, the supporting force required by the push rod 341 is small, and the fixing force required to be provided by the flexible connector 7 is relatively reduced. The torsion angle of the flexible connector 7 is reduced, the rotational force of the push plate 331 is reduced, and the pressure applied by the push rod 341 is also reduced. The supporting force and fixing force can be adaptively adjusted according to demand.

[0046] Example 3, reference Figure 1~Figure 5 , which is the third embodiment of the present invention. Different from the previous embodiment, the rotating member 4 is a gear ring; the driving member 5 includes a driving motor 51, and a gear 52 arranged on the output shaft of the driving motor 51; the gear 52 is meshingly connected with the gear ring.

[0047] When in use, the operation of the driving motor 51 can cause the gear 52 to rotate, and then the gear 52 drives the gear ring to rotate.

[0048] Specifically, the workbench 1 includes a mobile platform 11 , a support frame 12 disposed on the mobile platform 11 , and a multi-axis support 13 disposed on the support frame 12 ; the laser cutting head 2 is disposed on the multi-axis support 13 .

[0049] Furthermore, a rotating platform 14 is provided on the mobile platform 11 ; the limiting mechanism 3 is connected to the mobile platform 11 via the rotating platform 14 .

[0050] The rest of the structure is the same as that of Example 2.

[0051] When in use, the mobile platform 11 can control the rotating table 14 to move toward the direction of the laser cutting head 2, and the rotating table 14 can control the shell 31 to rotate, thereby making the pipe rotate during the cutting process. The multi-axis bracket 13 can control the laser cutting head 2 to move in multiple directions to realize the cutting operation of the pipe.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A laser cutting device for processing tubular parts of general machines, characterized in that: include, Workbench (1); A laser cutting head (2), which is arranged on the workbench (1); A limiting mechanism (3) disposed on the workbench (1); A rotating member (4) which is rotatably arranged in the limiting mechanism (3); A driving member (5) for driving the rotating member (4) to rotate; A sliding plate (6) slidably disposed in the limiting mechanism (3); A flexible connecting member (7), two ends of which are respectively connected to the rotating member (4) and the sliding plate (6); a spring (8) disposed between the rotating member (4) and the sliding plate (6); The rotation of the rotating member (4) can drive the flexible connecting member (7) to twist.

2. The laser cutting device for processing tubular parts of general machines according to claim 1, characterized in that: Two groups of the flexible connecting members (7) are provided, and the two groups of the flexible connecting members (7) are symmetrically arranged on both sides of the rotating member (4).

3. The laser cutting device for processing tubular parts of general machines according to claim 2, characterized in that: Each group of the flexible connecting members (7) is provided with a plurality of them, and the plurality of the flexible connecting members (7) are distributed on the rotating member (4) in a circular array.

4. The laser cutting device for processing tubular parts of general machines according to any one of claims 1 to 3, characterized in that: The limiting mechanism (3) comprises a housing (31), a limiting plate (32) arranged at the end of the housing (31), and a pushing member (33) rotatably arranged on the limiting plate (32), and a supporting member (34) is slidably arranged in the limiting plate (32); The push member (33) can be rotated to control the support member (34) to slide, expand or contract in the limiting plate (32).

5. The laser cutting device for processing tubular parts of general machines according to claim 4, characterized in that: The pushing member (33) comprises a pushing plate (331) rotatably arranged on the limiting plate (32), and a guide rod (333) arranged on the pushing plate (331); The guide rod (333) is arranged to penetrate the sliding plate (6), and the guide rod (333) and the sliding plate (6) are slidably connected.

6. The laser cutting device for processing tubular parts of general machines according to claim 5, characterized in that: The push disk (331) is provided with a spiral groove (332); The limiting plate (32) is provided with a sliding groove (321); The support member (34) comprises a push rod (341) slidably disposed in the sliding groove (321), and a sliding column (343) disposed on the push rod (341); The outer wall of the sliding column (343) and the inner wall of the spiral groove (332) are slidably connected.

7. The laser cutting device for processing tubular parts of general machines according to claim 6, characterized in that: A roller (342) is provided at the end of the push rod (341); A reinforcement ring (334) is provided at the end of the guide rod (333).

8. The laser cutting device for processing tubular parts of general machines according to any one of claims 1 to 3, characterized in that: The rotating member (4) is a gear ring; The driving member (5) comprises a driving motor (51) and a gear (52) arranged on an output shaft of the driving motor (51); The gear (52) is meshingly connected with the gear ring.

9. The laser cutting device for processing tubular parts of general machines according to claim 8, characterized in that: The workbench (1) comprises a mobile platform (11), a support frame (12) arranged on the mobile platform (11), and a multi-axis support (13) arranged on the support frame (12); The laser cutting head (2) is arranged on the multi-axis support (13).

10. The laser cutting device for processing tubular parts of general machines according to claim 9, characterized in that: The mobile platform (11) is provided with a rotating platform (14); The limiting mechanism (3) is connected via a rotating platform (14) and a movable platform (11).

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